阅读说明：本技术 一种耐水型胶黏剂及其制备方法和应用 (Water-resistant adhesive and preparation method and application thereof ) 是由 赵福涛 于 2021-09-15 设计创作，主要内容包括：本发明涉及新材料生产技术领域,具体公开了一种耐水型胶黏剂及其制备方法和应用,所述耐水型胶黏剂包括以下的原料：沥青、松香、芳烃石油树脂、重钙粉、膨润土、高岭土、聚己内酯、苯乙烯-马来酸酐共聚物、聚苯乙烯丁二烯共聚物以及适量的有机溶剂。本发明通过多种原料的混合制得所述耐水型胶黏剂,具有良好的耐水性,同时与建筑基体表面的粘接强度高,具有良好的机械强度,解决了现有建筑防水施工方法大多是直接进行铺设防水卷材与涂刷防水涂料,存在与建筑基体粘接强度不够的问题。而且,本发明实施例提供的耐水型胶黏剂的制备方法简单,适合工业化生产,具有广阔的市场前景。(The invention relates to the technical field of new material production, and particularly discloses a water-resistant adhesive as well as a preparation method and application thereof, wherein the water-resistant adhesive comprises the following raw materials: asphalt, rosin, aromatic hydrocarbon petroleum resin, heavy calcium powder, bentonite, kaolin, polycaprolactone, styrene-maleic anhydride copolymer, polystyrene-butadiene copolymer and a proper amount of organic solvent. The water-resistant adhesive is prepared by mixing a plurality of raw materials, has good water resistance, high bonding strength with the surface of a building matrix and good mechanical strength, and solves the problem that the existing building waterproof construction method is mostly used for directly laying waterproof coiled materials and brushing waterproof coatings, and the bonding strength with the building matrix is insufficient. In addition, the preparation method of the water-resistant adhesive provided by the embodiment of the invention is simple, is suitable for industrial production, and has a wide market prospect.)

1. The water-resistant adhesive is characterized by being prepared by mixing asphalt, rosin, aromatic petroleum resin, heavy calcium powder, bentonite, kaolin, polycaprolactone, a styrene-maleic anhydride copolymer, a polystyrene-butadiene copolymer and a proper amount of organic solvent.

2. The water-resistant adhesive according to claim 1, wherein the water-resistant adhesive comprises the following raw materials in parts by weight: 6-14 parts of asphalt, 1-5 parts of rosin, 6-14 parts of aromatic petroleum resin, 15-25 parts of heavy calcium powder, 0.2-0.8 part of bentonite, 2-4 parts of kaolin, 1-5 parts of polycaprolactone, 1-6 parts of styrene-maleic anhydride copolymer, 4-10 parts of polystyrene-butadiene copolymer and a proper amount of organic solvent.

3. The water-resistant adhesive according to claim 2, wherein the water-resistant adhesive comprises the following raw materials in parts by weight: 8-12 parts of asphalt, 2-4 parts of rosin, 8-12 parts of aromatic petroleum resin, 18-22 parts of heavy calcium powder, 0.3-0.6 part of bentonite, 2.5-3.5 parts of kaolin, 1.5-3.5 parts of polycaprolactone, 2-4 parts of styrene-maleic anhydride copolymer, 5-8 parts of polystyrene-butadiene copolymer and a proper amount of organic solvent.

4. The water-resistant adhesive according to claim 1, wherein the particle size of the triple superphosphate powder, the particle size of the bentonite and the particle size of the kaolin are not more than 400 meshes.

5. The water-resistant adhesive according to claim 1, wherein the styrene-maleic anhydride copolymer is prepared by using castor oil and maleic anhydride as raw materials, and sequentially adding acetone, dibenzoyl peroxide, polypropylene glycol, acrylate and styrene, and heating and mixing to form a polymer.

6. The water-resistant adhesive according to claim 5, wherein the mass ratio of castor oil, maleic anhydride, acetone, dibenzoyl peroxide, polypropylene glycol, acrylate and styrene in the preparation method of the styrene-maleic anhydride copolymer is 40-88: 20-40: 100-420: 1-29: 2-20: 12-40: 40-100.

7. The water-resistant adhesive according to claim 1, wherein the asphalt is selected from any one of coal tar pitch, petroleum pitch and natural asphalt, and the coal tar pitch, the petroleum pitch and the natural asphalt are subjected to oxidation treatment in air at 20-45 ℃.

8. A process for preparing a water-resistant adhesive as claimed in any one of claims 1 to 7, comprising the steps of:

1) weighing an organic solvent according to a proportion, and then adding asphalt to soak to obtain a soaked material;

2) and (2) dispersing the soaking material uniformly, then adding rosin and aromatic hydrocarbon petroleum resin in proportion, mixing uniformly, then adding heavy calcium powder, bentonite and kaolin, mixing uniformly, then adding polycaprolactone, a styrene-maleic anhydride copolymer and a polystyrene butadiene copolymer, and carrying out mixing reaction at 35-65 ℃ to obtain the water-resistant adhesive.

9. The water-resistant adhesive prepared by the preparation method of the water-resistant adhesive according to claim 8.

10. Use of the water resistant adhesive of claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 9 in building construction.

Technical Field

The invention relates to the technical field of new material production, in particular to a water-resistant adhesive and a preparation method and application thereof.

Background

With the continuous development of science and technology, people improve the traditional materials continuously, obtain more novel materials, and are widely applied to the fields of building construction, mechanical manufacturing, electronic equipment processing and the like. The adhesive is a common bonding material, and in order to meet the performance requirements of novel materials, the water resistance of the adhesive needs to be improved, so that the waterproof requirements in the fields of building construction, interior decoration, clothing manufacturing and the like are met while the rapid bonding among multiple materials is realized.

At present, the waterproof problem in building construction is one of the keys for ensuring the building quality. The common method is to lay the waterproof coiled material and brush the waterproof paint, but the technical proposal has the problem of weak bonding strength and weak bonding with the surface of the building matrix in actual use.

Disclosure of Invention

The embodiment of the invention aims to provide a water-resistant adhesive to solve the problem that the existing building waterproof construction method proposed in the background technology is mostly used for directly laying waterproof coiled materials and brushing waterproof coatings, and has insufficient bonding strength with a building matrix.

In order to achieve the above purpose, the embodiments of the present invention provide the following technical solutions:

a water-resistant adhesive comprises the following raw materials: asphalt, rosin, aromatic hydrocarbon petroleum resin, heavy calcium powder (heavy calcium carbonate powder), bentonite, kaolin, polycaprolactone, a styrene-maleic anhydride copolymer, a polystyrene-butadiene copolymer and a proper amount of an organic solvent; the water-resistant adhesive is prepared by mixing the raw materials.

As a further scheme of the invention: the water-resistant adhesive comprises the following raw materials in parts by weight: 6-14 parts of asphalt, 1-5 parts of rosin, 6-14 parts of aromatic petroleum resin, 15-25 parts of heavy calcium powder, 0.2-0.8 part of bentonite, 2-4 parts of kaolin, 1-5 parts of polycaprolactone, 1-6 parts of styrene-maleic anhydride copolymer, 4-10 parts of polystyrene-butadiene copolymer and a proper amount of organic solvent.

Another object of the embodiments of the present invention is to provide a preparation method of a water-resistant adhesive, including the following steps:

1) weighing an organic solvent according to a proportion, putting the organic solvent into a batching cylinder, and then adding asphalt to soak for at least 5 hours to obtain a soaked material;

2) and (2) putting the soaked material into a dispersing machine, uniformly dispersing at the rotating speed of 800-2000 rpm, weighing rosin and aromatic hydrocarbon petroleum resin in proportion, uniformly mixing, adding coarse whiting powder, bentonite and kaolin, uniformly mixing, adding polycaprolactone, a styrene-maleic anhydride copolymer and a polystyrene-butadiene copolymer, and carrying out mixing reaction at 35-65 ℃ to obtain the water-resistant adhesive.

Another object of the embodiments of the present invention is to provide a water-resistant adhesive prepared by the above preparation method of a water-resistant adhesive.

The embodiment of the invention also aims to provide an application of the water-resistant adhesive in building construction.

Compared with the prior art, the invention has the beneficial effects that:

the waterproof adhesive provided by the embodiment of the invention is prepared by mixing asphalt, rosin, aromatic hydrocarbon petroleum resin, heavy calcium powder, bentonite, kaolin, polycaprolactone, a styrene-maleic anhydride copolymer, a polystyrene butadiene copolymer and a proper amount of organic solvent as raw materials, has good water resistance, high bonding strength with the surface of a building matrix, good mechanical strength and more comprehensive functions, and solves the problem that the bonding strength with the building matrix is insufficient due to the fact that most of the existing building waterproof construction methods are directly used for laying waterproof coiled materials and brushing waterproof coatings. In addition, the preparation method of the water-resistant adhesive provided by the embodiment of the invention is simple, is suitable for industrial production, and has a wide market prospect.

Detailed Description

The present invention will be described in further detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the invention. All falling within the scope of the present invention.

The embodiment of the invention provides a water-resistant adhesive, which comprises the following raw materials: asphalt, rosin, aromatic hydrocarbon petroleum resin, heavy calcium powder (heavy calcium carbonate powder), bentonite, kaolin, polycaprolactone, a styrene-maleic anhydride copolymer, a polystyrene-butadiene copolymer and a proper amount of organic solvent.

As another preferred embodiment of the present invention, the organic solvent is any one of toluene, methanol, isopropanol, acetone, n-butanol, methyl formate, ethyl acetate, n-butyl ether, and benzene.

Preferably, the organic solvent is toluene.

As another preferred embodiment of the invention, the water-resistant adhesive comprises the following raw materials in parts by weight: 6-14 parts of asphalt, 1-5 parts of rosin, 6-14 parts of aromatic petroleum resin, 15-25 parts of heavy calcium powder, 0.2-0.8 part of bentonite, 2-4 parts of kaolin, 1-5 parts of polycaprolactone, 1-6 parts of styrene-maleic anhydride copolymer, 4-10 parts of polystyrene-butadiene copolymer and a proper amount of organic solvent.

As another preferred embodiment of the invention, the water-resistant adhesive comprises the following raw materials in parts by weight: 8-12 parts of asphalt, 2-4 parts of rosin, 8-12 parts of aromatic petroleum resin, 18-22 parts of heavy calcium powder, 0.3-0.6 part of bentonite, 2.5-3.5 parts of kaolin, 1.5-3.5 parts of polycaprolactone, 2-4 parts of styrene-maleic anhydride copolymer, 5-8 parts of polystyrene-butadiene copolymer and a proper amount of organic solvent.

Preferably, the water-resistant adhesive comprises the following raw materials in parts by weight: 70 parts of toluene, 10 parts of asphalt, 3 parts of rosin, 10 parts of aromatic hydrocarbon petroleum resin, 20 parts of heavy calcium powder, 0.6 part of bentonite, 2.5 parts of kaolin, 3 parts of polycaprolactone, 2 parts of styrene-maleic anhydride copolymer and 6 parts of polystyrene-butadiene copolymer.

In another preferred embodiment of the invention, the raw material of the water-resistant adhesive further comprises portland cement with the weight same as that of the heavy calcium carbonate powder.

As another preferred embodiment of the invention, the average molecular weight of the aromatic hydrocarbon petroleum resin is 2000-5000-.

As another preferred embodiment of the present invention, the particle size of the triple superphosphate powder, the particle size of the bentonite and the particle size of the kaolin are not more than 400 meshes.

As another preferred embodiment of the present invention, the styrene-maleic anhydride copolymer is prepared by using castor oil and maleic anhydride as raw materials, and sequentially adding acetone, dibenzoyl peroxide, polypropylene glycol, acrylate and styrene, and heating and mixing (preferably 75 ℃) to form a polymer.

As another preferred embodiment of the present invention, in the preparation method of the styrene-maleic anhydride copolymer, the mass ratio of castor oil, maleic anhydride, acetone, dibenzoyl peroxide, polypropylene glycol, acrylate and styrene is 40-88: 20-40: 100-420: 1-29: 2-20: 12-40: 40-100.

As another preferred embodiment of the present invention, the method for preparing the styrene-maleic anhydride copolymer further comprises the steps of cooling the product, mixing with diethyl ether, filtering, and vacuum drying.

In another preferred embodiment of the present invention, the asphalt is selected from any one of coal tar asphalt, petroleum asphalt and natural asphalt, and the coal tar asphalt, the petroleum asphalt and the natural asphalt are all subjected to oxidation treatment in air at 20-45 ℃, the time of the oxidation treatment is more than 30 days, most of toxins in the asphalt can be removed through oxidation and long-term evaporation, and the safety of the water-resistant adhesive is effectively improved.

Preferably, the bitumen is a natural bitumen which is the residue of petroleum exuding to a surface after prolonged exposure and evaporation.

The embodiment of the invention also provides a preparation method of the water-resistant adhesive, which comprises the following steps:

1) weighing an organic solvent according to a proportion, putting the organic solvent into a batching cylinder, and then adding asphalt to soak for at least 5 hours to obtain a soaked material;

2) and (2) putting the soaked material into a dispersing machine, uniformly dispersing at the rotating speed of 800-2000 rpm, weighing rosin and aromatic hydrocarbon petroleum resin in proportion, uniformly mixing, adding coarse whiting powder, bentonite and kaolin, uniformly mixing, adding polycaprolactone, a styrene-maleic anhydride copolymer and a polystyrene-butadiene copolymer, and carrying out mixing reaction at 35-65 ℃ to obtain the water-resistant adhesive.

The embodiment of the invention also provides the water-resistant adhesive prepared by the preparation method of the water-resistant adhesive.

The embodiment of the invention also provides an application of the water-resistant adhesive in building construction. The waterproof mortar is particularly suitable for being added into cement mortar to prepare waterproof mortar, can improve the waterproof performance of the cement mortar, and simultaneously ensures good mechanical performance.

The technical effects of the water-resistant adhesive of the present invention will be further described below by referring to specific examples.

Example 1

A water-resistant adhesive comprises the following raw materials: 10 kg of asphalt, 3 kg of rosin, 10 kg of aromatic hydrocarbon petroleum resin, 20 kg of heavy calcium powder, 0.6 kg of bentonite, 2.5 kg of kaolin, 3 kg of polycaprolactone, 2 kg of styrene-maleic anhydride copolymer, 6 kg of polystyrene-butadiene copolymer and 70 kg of organic solvent. Wherein the organic solvent is toluene. The particle sizes of the triple superphosphate powder, the bentonite and the kaolin are all 400 meshes. The preparation method of the styrene-maleic anhydride copolymer comprises the steps of taking castor oil and maleic anhydride as raw materials, sequentially adding acetone, dibenzoyl peroxide, polypropylene glycol, acrylate and styrene, heating and mixing (at 75 ℃) to form a polymer, cooling, mixing with diethyl ether, filtering, and drying in vacuum to obtain the styrene-maleic anhydride copolymer; wherein the mass ratio of castor oil, maleic anhydride, acetone, dibenzoyl peroxide, polypropylene glycol, acrylate and styrene is 62: 28: 220: 4: 10: 30: 80. the asphalt is a sample of natural asphalt after being subjected to an oxidation treatment for 50 days in air at 40 ℃.

In this embodiment, the preparation method of the water-resistant adhesive specifically includes the following steps:

1) weighing the organic solvent, putting the organic solvent into a proportioning cylinder, and then adding asphalt to soak for 12 hours to obtain a soaked material;

2) putting the soaking material into a dispersing machine, uniformly dispersing at the rotating speed of 1500 rpm, weighing rosin and aromatic hydrocarbon petroleum resin according to a proportion, uniformly mixing, adding coarse whiting powder, bentonite and kaolin, uniformly mixing, adding polycaprolactone, a styrene-maleic anhydride copolymer and a polystyrene butadiene copolymer, and carrying out mixing reaction at 45 ℃ to obtain the water-resistant adhesive.

Example 2

A water-resistant adhesive comprises the following raw materials: 6 kg of asphalt, 1 kg of rosin, 6 kg of aromatic hydrocarbon petroleum resin, 15 kg of heavy calcium powder, 0.2 kg of bentonite, 2 kg of kaolin, 1 kg of polycaprolactone, 1 kg of styrene-maleic anhydride copolymer, 4 kg of polystyrene-butadiene copolymer and 65 kg of organic solvent. Wherein the organic solvent is toluene. The particle sizes of the triple superphosphate powder, the bentonite and the kaolin are all 400 meshes. The preparation method of the styrene-maleic anhydride copolymer comprises the steps of taking castor oil and maleic anhydride as raw materials, sequentially adding acetone, dibenzoyl peroxide, polypropylene glycol, acrylate and styrene, heating and mixing (at 75 ℃) to form a polymer, cooling, mixing with diethyl ether, filtering, and drying in vacuum to obtain the styrene-maleic anhydride copolymer; wherein the mass ratio of castor oil, maleic anhydride, acetone, dibenzoyl peroxide, polypropylene glycol, acrylic ester and styrene is 40: 20: 100: 1: 2: 12: 40. the asphalt is a sample of natural asphalt after being subjected to an oxidation treatment in air at 20 ℃ for 30 days.

In this embodiment, the preparation method of the water-resistant adhesive specifically includes the following steps:

1) weighing the organic solvent, putting the organic solvent into a proportioning cylinder, and then adding asphalt to soak for 5 hours to obtain a soaked material;

2) and putting the soaking material into a dispersing machine, uniformly dispersing at a rotating speed of 800 revolutions per minute, weighing rosin and aromatic hydrocarbon petroleum resin according to a proportion, uniformly mixing, adding heavy calcium powder, bentonite and kaolin, uniformly mixing, adding polycaprolactone, a styrene-maleic anhydride copolymer and a polystyrene butadiene copolymer, and carrying out mixing reaction at 35 ℃ to obtain the water-resistant adhesive.

Example 3

A water-resistant adhesive comprises the following raw materials: 14 kg of asphalt, 5 kg of rosin, 14 kg of aromatic hydrocarbon petroleum resin, 25 kg of heavy calcium powder, 0.8 kg of bentonite, 4 kg of kaolin, 5 kg of polycaprolactone, 6 kg of styrene-maleic anhydride copolymer, 10 kg of polystyrene-butadiene copolymer and 75 kg of organic solvent. Wherein the organic solvent is acetone. The particle sizes of the triple superphosphate powder, the bentonite and the kaolin are all 800 meshes. The preparation method of the styrene-maleic anhydride copolymer comprises the steps of taking castor oil and maleic anhydride as raw materials, sequentially adding acetone, dibenzoyl peroxide, polypropylene glycol, acrylate and styrene, heating and mixing (at 75 ℃) to form a polymer, cooling, mixing with diethyl ether, filtering, and drying in vacuum to obtain the styrene-maleic anhydride copolymer; wherein the mass ratio of castor oil, maleic anhydride, acetone, dibenzoyl peroxide, polypropylene glycol, acrylic ester and styrene is 88: 40: 420: 29: 20: 40: 100. the asphalt is a sample of natural asphalt after being subjected to an oxidation treatment in air at 45 ℃ for 40 days.

In this embodiment, the preparation method of the water-resistant adhesive specifically includes the following steps:

1) weighing the organic solvent, putting the organic solvent into a proportioning cylinder, and then adding asphalt to soak for 7 hours to obtain a soaked material;

2) putting the soaking material into a dispersing machine, uniformly dispersing at a rotating speed of 2000 rpm, weighing rosin and aromatic hydrocarbon petroleum resin according to a proportion, uniformly mixing, adding heavy calcium powder, bentonite and kaolin, uniformly mixing, adding polycaprolactone, a styrene-maleic anhydride copolymer and a polystyrene butadiene copolymer, and carrying out mixed reaction at 65 ℃ to obtain the water-resistant adhesive.

Example 4

A water-resistant adhesive comprises the following raw materials: 8 kg of asphalt, 2 kg of rosin, 8 kg of aromatic hydrocarbon petroleum resin, 18 kg of heavy calcium powder, 0.3 kg of bentonite, 2.5 kg of kaolin, 1.5 kg of polycaprolactone, 2 kg of styrene-maleic anhydride copolymer, 5 kg of polystyrene-butadiene copolymer and 70 kg of organic solvent. Wherein the organic solvent is toluene. The particle sizes of the triple superphosphate powder, the bentonite and the kaolin are all 500 meshes. The preparation method of the styrene-maleic anhydride copolymer comprises the steps of taking castor oil and maleic anhydride as raw materials, sequentially adding acetone, dibenzoyl peroxide, polypropylene glycol, acrylate and styrene, heating and mixing (at 75 ℃) to form a polymer, cooling, mixing with diethyl ether, filtering, and drying in vacuum to obtain the styrene-maleic anhydride copolymer; wherein the mass ratio of castor oil, maleic anhydride, acetone, dibenzoyl peroxide, polypropylene glycol, acrylate and styrene is 58: 26: 250: 8: 12: 25: 70. the asphalt is a sample of natural asphalt after being subjected to an oxidation treatment for 50 days in air at 40 ℃.

In this embodiment, the preparation method of the water-resistant adhesive specifically includes the following steps:

1) weighing the organic solvent, putting the organic solvent into a proportioning cylinder, and then adding asphalt to soak for 12 hours to obtain a soaked material;

2) putting the soaking material into a dispersing machine, uniformly dispersing at the rotating speed of 1500 rpm, weighing rosin and aromatic hydrocarbon petroleum resin according to a proportion, uniformly mixing, adding coarse whiting powder, bentonite and kaolin, uniformly mixing, adding polycaprolactone, a styrene-maleic anhydride copolymer and a polystyrene butadiene copolymer, and carrying out mixing reaction at 45 ℃ to obtain the water-resistant adhesive.

Example 5

A water-resistant adhesive comprises the following raw materials: 12 kg of asphalt, 4 kg of rosin, 12 kg of aromatic hydrocarbon petroleum resin, 22 kg of heavy calcium powder, 0.6 kg of bentonite, 3.5 kg of kaolin, 3.5 kg of polycaprolactone, 4 kg of styrene-maleic anhydride copolymer, 8 kg of polystyrene-butadiene copolymer and 70 kg of organic solvent. Wherein the organic solvent is toluene. The particle sizes of the triple superphosphate powder, the bentonite and the kaolin are all 500 meshes. The preparation method of the styrene-maleic anhydride copolymer comprises the steps of taking castor oil and maleic anhydride as raw materials, sequentially adding acetone, dibenzoyl peroxide, polypropylene glycol, acrylate and styrene, heating and mixing (at 75 ℃) to form a polymer, cooling, mixing with diethyl ether, filtering, and drying in vacuum to obtain the styrene-maleic anhydride copolymer; wherein the mass ratio of castor oil, maleic anhydride, acetone, dibenzoyl peroxide, polypropylene glycol, acrylic ester and styrene is 72: 32: 320: 20: 16: 30: 85. the asphalt is a sample of natural asphalt after being subjected to an oxidation treatment for 50 days in air at 40 ℃.

In this embodiment, the preparation method of the water-resistant adhesive specifically includes the following steps:

1) weighing the organic solvent, putting the organic solvent into a proportioning cylinder, and then adding asphalt to soak for 12 hours to obtain a soaked material;

2) putting the soaking material into a dispersing machine, uniformly dispersing at the rotating speed of 1500 rpm, weighing rosin and aromatic hydrocarbon petroleum resin according to a proportion, uniformly mixing, adding coarse whiting powder, bentonite and kaolin, uniformly mixing, adding polycaprolactone, a styrene-maleic anhydride copolymer and a polystyrene butadiene copolymer, and carrying out mixing reaction at 45 ℃ to obtain the water-resistant adhesive.

Example 6

The same as example 1 except that the organic solvent was methanol, as compared with example 1.

Example 7

The same as example 1 except that the organic solvent was n-butanol, as compared with example 1.

Example 8

The same as example 1 except that the organic solvent was ethyl acetate, compared with example 1.

Example 9

The same as example 1 except that the organic solvent was benzene, compared with example 1.

Example 10

Compared with the example 3, the water-resistant adhesive is the same as the example 3 except that the raw materials of the water-resistant adhesive also comprise the Portland cement with the weight same as that of the heavy calcium carbonate powder.

Example 11

Compared to example 1, except that the mass ratio of castor oil, maleic anhydride, acetone, dibenzoyl peroxide, polypropylene glycol, acrylate to styrene was 40: 40: 420: 29: 20: 40: the procedure was repeated except for (100) and the same as in example 1.

Example 12

Compared to example 1, except that the mass ratio of castor oil, maleic anhydride, acetone, dibenzoyl peroxide, polypropylene glycol, acrylate to styrene was 88: 20: 100: 1: 2: 12: the procedure of example 1 was repeated except for 40.

Example 13

Compared to example 1, except that the mass ratio of castor oil, maleic anhydride, acetone, dibenzoyl peroxide, polypropylene glycol, acrylate to styrene was 48: 30: 350: 19: 10: 30: 80, the procedure was repeated in the same manner as in example 1.

Example 14

The same as example 3 except that the asphalt was a sample of natural asphalt subjected to an oxidation treatment at 42 ℃ for 40 days in air, as compared with example 3.

Example 15

The same as example 3 except that the natural asphalt was replaced with coal tar pitch, as compared with example 3.

Example 16

The same as example 3 except that the natural asphalt was replaced with the petroleum asphalt, as compared with example 3.

Example 17

Compared with the example 3, the temperature of the mixing reaction in the preparation method of the water-resistant adhesive is 38 ℃. The rest is the same as in example 3.

Example 18

Compared with the example 3, the temperature of the mixing reaction in the preparation method of the water-resistant adhesive is 61 ℃. The rest is the same as in example 3.

Comparative example 1

The same as example 1 except that polycaprolactone and polystyrene butadiene copolymer were not contained, as compared with example 1.

Comparative example 2

The same as example 1 except that styrene-maleic anhydride copolymer was not contained, as compared with example 1.

Comparative example 3

The same as example 1 except that polycaprolactone, styrene-maleic anhydride copolymer and polystyrene butadiene copolymer were not contained, compared with example 1.

Comparative example 4

Compared with the example 1, the raw materials of the water-resistant adhesive are basically the same, except that the natural asphalt is directly used without being subjected to the treatment for 50 days in the air at the temperature of 40 ℃, and the raw materials are the same as the example 1.

Performance detection

The water-resistant adhesives prepared by the methods of examples 1-5 were tested for performance. Specifically, the water resistance test was performed on the water-resistant adhesives prepared in examples 1 to 5, respectively: the water-resistant adhesives prepared in examples 1 to 5 were uniformly applied as test samples to all surfaces of a wood board having a specification of 250mm × 250mm × 5mm, respectively, in an amount of 130g/m²The two boards coated with the same test sample are bonded together, placed at room temperature for 24 hours, then placed in a water bath kettle at 65 ℃ for water bath heating for 5 hours, taken out and then measured for tensile strength between the two bonded boards, and the average value is taken after 3 times of measurement, and the obtained specific detection result is shown in table 1.

TABLE 1 Water resistance test results Table

Group of	Tensile Strength (MPa)
		Example 1	95
Example 2	91
		Example 3	94
Example 4	92
		Example 5	94

As can be seen from the data in table 1, the water-resistant adhesive prepared by the preparation method provided in the embodiment of the present invention still has good tensile strength after being heated and boiled, so that the water-resistant adhesive has good water resistance.

To investigate the effect of the difference in raw materials on the properties of the prepared products, the water resistance test was performed below on the water resistant adhesive prepared in example 1 and the samples prepared in comparative examples 1 to 4, respectively, with reference to the above method: the test sample is uniformly smeared on all the surfaces of a wood board with the specification of 250mm multiplied by 5mm, and the smearing quantity is 130g/m²Bonding two wood boards coated with the same test sample together, and placing at room temperaturePlacing for 24 hours, then placing in a 65 ℃ water bath to carry out water bath heating for 5 hours, taking out and measuring the tensile strength between two attached wood boards, measuring for 3 times and taking an average value to obtain specific detection results shown in table 2.

TABLE 2 Water resistance test results table

Group of	Tensile Strength (MPa)
		Example 1	95
Comparative example 1	82
		Comparative example 2	85
Comparative example 3	71
		Comparative example 4	-

As can be seen from the data in table 2, the water-resistant adhesive prepared by the preparation method provided in the embodiment of the present invention still has good tensile strength after being heated and boiled, so that the water-resistant adhesive has good water resistance. In comparative example 4, although the water resistance of the sample was almost the same as that of example 1, the natural asphalt was oxidized, and most of the toxins in the asphalt were removed by oxidation and evaporation for a long time, which effectively improved the safety of the water-resistant adhesive.

In order to detect the performance improvement effect of the water-resistant adhesive on a sample after the water-resistant adhesive is added into cement mortar to prepare waterproof mortar, the raw material of the water-resistant adhesive prepared by the method in example 1 is added with portland cement with the same weight as heavy calcium carbonate powder, then the sample is subjected to performance test according to the standard in JC/T984-2011 polymer cement waterproof mortar, water with the weight of 0.3 time of the sample is added into the sample and is uniformly mixed and stirred, and then the sample is maintained under the maintenance conditions that the temperature is 20 +/-2 ℃, the relative humidity is more than or equal to 90 percent, and the sample is placed for 7 days. The test is carried out according to GB/T17671 to test the compressive strength, and the test is carried out according to JC/T907-2002 to test the tensile bonding strength and simultaneously test the alkali resistance, the heat resistance and the frost resistance.

Specifically, tensile bond strength: the materials are mixed according to the method and are molded according to 5.4 in JC/T907-2002. Two sets of test pieces were formed, 5 test pieces per set. The method comprises the following steps of adopting a mold frame made of rubber or silicone sealing materials, placing the mold frame on a (70 x 20) mm mortar base block formed by adopting ordinary portland cement conforming to GB175-2007, pouring a sample into the mold frame, leveling, demolding after curing for 24 hours, and continuing curing the test piece to the age of 7d after demolding. After the test piece is cured, the tensile bond strength is tested according to 5.4.3 in JC/T907-2002.

Alkali resistance: three test pieces were prepared per group. The prepared sample is coated on a cement mortar block with the thickness of (70 multiplied by 20) mm by blade coating according to the method for preparing the materials, and the coating thickness is (5.0-6.0) mm. And curing the test piece to the age of 7d, and soaking the test piece in a saturated calcium hydroxide solution meeting the specification of 13.2.3 in GB/T16777-2008 for 168 h. Subsequently, the test piece was taken out and observed for cracking and peeling.

Heat resistance: three test pieces were prepared per group. The prepared sample is coated on a cement mortar block with the thickness of (70 multiplied by 20) mm by blade coating according to the method for preparing the materials, and the coating thickness is (5.0-6.0) mm. And curing the test piece to the age of 7d, and putting the test piece in a boiling box to boil for 5 h. Subsequently, the test piece was taken out and observed for cracking and peeling.

Freezing resistance: three test pieces were prepared per group. The prepared samples were drawn down on (70X 20) mn cement mortar blocks with a coating thickness of (5.0-6.0) mm, compounded as described above. After the test piece is cured to 7 days old, the test is carried out according to GB/T50082-2009 chapter 4. Air freezing at-15 deg.C for 4h, water thawing at 20 + -2 deg.C for 4h, and freeze-thawing for 25 times. Subsequently, the test piece was taken out and observed for cracking and peeling.

The results of the above tests are shown in Table 3. As can be seen from the data in Table 3, the water-resistant adhesive prepared by the preparation method of the water-resistant adhesive provided by the embodiment of the invention not only has good water resistance, but also has good mechanical strength, and the tensile bond strength result shows that the tensile bond strength after curing for 7d is 1.2MPa, and meets the standard of 0.8-1.0 MPa. It can be seen from comparative examples 1-3 that the embodiment of the invention can achieve a synergistic effect by the matching use of polycaprolactone, styrene-maleic anhydride copolymer and polystyrene butadiene copolymer, and can effectively improve the compressive strength compared with the case of only using part of raw materials.

Table 3 table of performance improvement test results

According to the above results, the waterproof adhesive has the following beneficial effects that the waterproof improvement effect of the waterproof adhesive on cement mortar can be effectively improved through reasonable matching of asphalt, rosin, aromatic hydrocarbon petroleum resin, heavy calcium powder, bentonite, kaolin, polycaprolactone, styrene-maleic anhydride copolymer, polystyrene-butadiene copolymer and a proper amount of organic solvent, and the waterproof adhesive has a wide market prospect.

While the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the scope of the invention.