阅读说明：本技术 一种胶水及其制备方法和胶带 (Glue, preparation method thereof and adhesive tape ) 是由 曾广伟 于 2021-08-20 设计创作，主要内容包括：本申请涉及新材料技术领域,具体公开了一种胶水及其制备方法和胶带,胶水由包括以下重量份的原料制得：4000-5000份水A、25-35份乳化剂、2.5-4.5份增塑剂、90-110份丙烯酸、6000-6800份醋酸丁酯、30-40份引发剂、7-12份润湿剂、15-25份羟乙基纤维素、3-7份有机膨润土和8-12份脂肪族矿物油,所述增塑剂选用质量比为1：(0.5-0.8)的环氧脂肪酸甲酯增塑剂与三酰柠檬酸三丁酯的混合物；其制备方法包括以下步骤：前滴加料制备；胶水制备；本申请还公开了一种胶带,包括胶带薄膜,所述胶带薄膜一侧表面涂覆有所述的胶水。本申请具有提高胶带的可剥离性能,减少对纸箱的损坏的特点。(The application relates to the technical field of new materials, and particularly discloses glue, a preparation method thereof and an adhesive tape, wherein the glue is prepared from the following raw materials in parts by weight: 4000-5000 parts of water A, 25-35 parts of emulsifier, 2.5-4.5 parts of plasticizer, 90-110 parts of acrylic acid, 6000-6800 parts of butyl acetate, 30-40 parts of initiator, 7-12 parts of wetting agent, 15-25 parts of hydroxyethyl cellulose, 3-7 parts of organic bentonite and 8-12 parts of aliphatic mineral oil, wherein the mass ratio of the plasticizer is 1: (0.5-0.8) a mixture of an epoxy fatty acid methyl ester plasticizer and tributyl triacyl citrate; the preparation method comprises the following steps: preparing a dropwise adding material; preparing glue; the application also discloses an adhesive tape, which comprises an adhesive tape film, wherein the surface of one side of the adhesive tape film is coated with the glue. This application has the strippable ability who improves the sticky tape, reduces the characteristics to the damage of carton.)

1. The glue is characterized by being prepared from the following raw materials in parts by weight:

4000-5000 parts of water A, 25-35 parts of emulsifier, 2.5-4.5 parts of plasticizer, 90-110 parts of acrylic acid, 6000-6800 parts of butyl acetate, 30-40 parts of initiator, 7-12 parts of wetting agent, 15-25 parts of hydroxyethyl cellulose, 3-7 parts of organic bentonite and 8-12 parts of aliphatic mineral oil;

the initiator comprises 25-30 parts by weight of a front initiator and the balance of a rear initiator, and the mass ratio of the plasticizer is 1: (0.5-0.8) a mixture of epoxy fatty acid methyl ester plasticizer and tributyl triacyl citrate.

2. The glue of claim 1, wherein: the glue also comprises 8-15 parts by weight of aqueous polyvinylidene chloride copolymer emulsion.

3. The glue of claim 1, wherein: the front initiator is one or more of sodium persulfate and ammonium persulfate, and the rear initiator is tert-butyl hydroperoxide;

and/or the emulsifier is fatty alcohol polyoxyethylene ether AEO-9;

and/or the wetting agent is selected from dioctyl sodium sulfosuccinate OT-75.

4. The glue of claim 1, wherein: the glue also comprises 5-8 parts by weight of a defoaming agent.

5. The glue of claim 1, wherein: the glue also comprises 6-12 parts by weight of sodium formaldehyde sulfoxylate.

6. A method of preparing the glue of claim 1, comprising the steps of:

preparing a front dropwise adding material: mixing hydroxyethyl cellulose, organic bentonite and aliphatic mineral oil to prepare a mixed solution;

mixing an emulsifier with water A of 1/2, stirring, adding acrylic acid and a plasticizer, then adding butyl acetate, stirring, adding a mixed solution and a defoaming agent with the total addition of 6% of the defoaming agent when the butyl acetate is added to a half, and continuously stirring to prepare a front dropping material;

preparing glue: mixing the residual water A in the raw materials with 5-10 parts by weight of baking soda, heating to 80-85 ℃, adding 3/5 parts of front initiator, adding the front dropping material prepared in the preparation step of the front dropping material after 3-8min, synchronously dropping the residual front initiator in the process of adding the front dropping material, and preserving heat for 50-70min at 80-85 ℃ after the dropping is finished;

cooling to 70-73 ℃, adding a post initiator, stirring, adding 70-90 parts of ammonia water solution when the temperature is reduced to 50 ℃, wherein the ammonia water solution is obtained by mixing industrial ammonia water and water B according to the mass ratio of 2: 1;

stirring after adding, adding a wetting agent, cooling to below 45 ℃, and outputting to obtain the glue.

7. The method for preparing glue according to claim 6, characterized in that: the glue also comprises 8-15 parts by weight of aqueous polyvinylidene chloride copolymer emulsion;

the polyvinylidene chloride copolymer emulsion is added after the wetting agent solution is added.

8. The glue of claim 6, wherein: the glue also comprises 5-8 parts by weight of a defoaming agent;

in the step of preparing the dropwise adding material, adding the mixed solution, and then adding the defoaming agent with the total addition of 6 percent of the defoaming agent;

in the glue preparation step, the wetting agent solution is added, and then the rest defoaming agent is added;

and the addition mode of the defoaming agent is as follows: dissolving in 15-20 times of water B by mass, and adding;

and/or the glue further comprises 6-12 parts by weight of a rongalite;

in the glue preparation step, after the tert-butyl solution is added, the rongalite is added at 65-70 ℃ after stirring, and the rongalite is added after being dissolved in 15-20 mass times of water B.

9. The glue of claim 6, wherein: in the glue preparation step, the residual front initiator is synchronously dripped in the process of front dripping and is dissolved in water B with the mass multiple of 38-42, and then the mixture is dripped;

the post initiator is dissolved in water B with the mass multiple of 3-4 and then added;

the wetting agent is added after being dissolved in water B with the mass ratio of 3-4.

10. An adhesive tape characterized in that: comprises a tape film, wherein one side surface of the tape film is coated with the glue water according to any one of claims 1-5.

Technical Field

The application relates to the technical field of new materials, in particular to glue, a preparation method thereof and a glue tape.

Background

The BOPP adhesive tape is a case sealing adhesive tape which is obtained by taking a BOPP biaxially oriented polypropylene film as a base material, heating and uniformly smearing pressure-sensitive adhesive emulsion to form an adhesive layer. The BOPP adhesive tape has the advantages of high tensile strength, light weight, low cost, no toxicity and the like, is used as a packaging material, and is widely applied to sealing and packaging of cardboard boxes, fixing, bundling and sealing of objects and the like.

The common BOPP adhesive tape on the market has reliable adhesion during use, but the following defects are common: the strippable performance is relatively poor, when the sticky tape is torn to the packing carton that needs to be opened, causes the damage of the different degree in carton surface easily, or remains the adhesive on the carton surface, especially when the coefficient of friction on carton surface is great or carton intensity is lower, and the damage degree is more obvious, leads to most packing cartons to use once more after opening, also does not benefit to the recovery respectively and the recycle of carton and sticky tape.

Disclosure of Invention

In order to improve the strippable performance of the adhesive tape and reduce the damage to the carton, the application provides the adhesive tape, the preparation method thereof and the adhesive tape.

In a first aspect, the application provides a glue solution that adopts the following technical scheme:

the glue is prepared from the following raw materials in parts by weight:

4000-5000 parts of water A, 25-35 parts of emulsifier, 2.5-4.5 parts of plasticizer, 90-110 parts of acrylic acid, 6000-6800 parts of butyl acetate, 30-40 parts of initiator, 7-12 parts of wetting agent, 15-25 parts of hydroxyethyl cellulose, 3-7 parts of organic bentonite and 8-12 parts of aliphatic mineral oil;

the initiator comprises 25-30 parts by weight of a front initiator and the balance of a rear initiator, and the mass ratio of the plasticizer is 1: (0.5-0.8) a mixture of epoxy fatty acid methyl ester plasticizer and tributyl triacyl citrate.

Through adopting above-mentioned technical scheme, the elasticity modulus of glue can be reduced in the addition of plasticizer and aliphatic group mineral oil in this application, improves the initial viscous performance of glue to improve the strippability performance of glue, the plasticizer in this application chooses epoxy fatty acid methyl ester plasticizer and acetyl tributyl citrate of specific proportion for use moreover, compares in traditional collar dibutyl phthalate, and is safer and more harmless, uses it and hydroxyethyl cellulose are compounded moreover, the strippability performance of improvement glue that can be better. The addition of the hydroxyethyl cellulose plays a certain role in adhesion, dispersion and emulsification, so that the uniform dispersion of the raw materials in the system is facilitated, the initial adhesion of the glue can be further improved, and the strippability of the glue is finally improved; the organic bentonite is added to play roles in thickening, sedimentation prevention and stabilization, and the organic bentonite has certain gelling effect and thixotropic effect on polymer molecules, so that the strippability of the glue can be obviously improved, the organic bentonite is more beneficial to gluing of the adhesive tape, and the glue throwing phenomenon of the adhesive tape is improved. The addition of the organic bentonite can also promote the dissolution of the plasticizer and the hydroxyethyl cellulose in the glue, has the effect of promoting dispersion, promotes the intersolubility among materials, and finally obtains the glue with excellent water resistance and stripping performance.

Optionally, the glue further comprises 8-15 parts by weight of aqueous polyvinylidene chloride copolymer emulsion.

By adopting the technical scheme, the initial adhesive property of the glue can be further improved by the aqueous polyvinylidene chloride copolymer emulsion, and the strippability of the glue is further improved.

Optionally, the front initiator is one or more of sodium persulfate and ammonium persulfate, and the rear initiator is tert-butyl hydroperoxide;

and/or the emulsifier is fatty alcohol polyoxyethylene ether AEO-9;

and/or the wetting agent is selected from dioctyl sodium sulfosuccinate OT-75.

By adopting the technical scheme, the dioctyl sodium sulfosuccinate is used as the anionic surfactant, has strong wetting property, improves the wetting property of the glue, and has good dispersibility and emulsibility, so that the prepared glue system is uniform and stable, and has a certain foam inhibition function.

Optionally, the glue further comprises 5-8 parts by weight of a defoaming agent.

By adopting the technical scheme, the addition of the defoaming agent reduces the generation of bubbles in the glue preparation process, and the glue can be uniformly distributed when being used on the adhesive tape.

Optionally, the glue further comprises 6-12 parts by weight of a rongalite.

By adopting the technical scheme, the addition of the rongalite can keep the color of the pressure-sensitive adhesive.

In a second aspect, the preparation method of the glue provided by the application adopts the following technical scheme:

a preparation method of glue comprises the following steps:

preparing a front dropwise adding material: mixing hydroxyethyl cellulose, organic bentonite and aliphatic mineral oil to prepare a mixed solution;

mixing an emulsifier with water A of 1/2, stirring, adding acrylic acid and a plasticizer, then adding butyl acetate, stirring, adding a mixed solution and a defoaming agent with the total addition of 6% of the defoaming agent when the butyl acetate is added to a half, and continuously stirring to prepare a front dropping material; preparing glue: mixing the residual water A in the raw materials with 5-10 parts by weight of baking soda, heating to 80-85 ℃, adding 3/5 parts of front initiator, adding the front dropping material prepared in the preparation step of the front dropping material after 3-8min, synchronously dropping the residual front initiator in the process of adding the front dropping material, and preserving heat for 50-70min at 80-85 ℃ after the dropping is finished;

cooling to 70-73 ℃, adding a post initiator, stirring, adding 70-90 parts of ammonia water solution when the temperature is reduced to 50 ℃, wherein the ammonia water solution is obtained by mixing industrial ammonia water and water B according to the mass ratio of 2: 1;

stirring after adding, adding a wetting agent, cooling to below 45 ℃, and outputting to obtain the glue.

By adopting the technical scheme, the glue prepared by the method provided by the application has good strippability. In addition, hydroxyethyl cellulose, organic bentonite and aliphatic mineral oil are mixed and added in the front dropping liquid, so that not only can a better dispersion and emulsification effect be achieved, but also the prepared glue has excellent strippability.

Optionally, the glue further comprises 8-15 parts by weight of aqueous polyvinylidene chloride copolymer emulsion;

the polyvinylidene chloride copolymer emulsion is added after the wetting agent solution is added.

Optionally, the glue further comprises 5-8 parts by weight of a defoaming agent;

in the former dropwise adding material preparation step, adding the mixed solution and then adding the defoaming agent with the total addition of 6 percent of the defoaming agent;

in the glue preparation step, the wetting agent solution is added, and then the rest defoaming agent is added;

and the addition mode of the defoaming agent is as follows: dissolving in 15-20 times of water B by mass, and adding.

And/or the glue further comprises 6-12 parts by weight of a rongalite;

in the glue preparation step, after the tert-butyl solution is added, the rongalite is added at 65-70 ℃ after stirring, and the rongalite is added after being dissolved in 15-20 mass times of water B.

Optionally, in the glue preparation step, in the former dropping process, the rest of former initiator is synchronously dropped and dissolved in water B with the mass multiple of 38-42, and then the mixture is dropped;

the post initiator is dissolved in water B with the mass multiple of 3-4 and then added;

the wetting agent is added after being dissolved in water B with the mass ratio of 3-4.

In a third aspect, the adhesive tape provided by the application adopts the following technical scheme:

the adhesive tape comprises an adhesive tape film, wherein one side surface of the adhesive tape film is coated with the glue.

Through adopting above-mentioned technical scheme, be applied to the sticky tape with the glue that makes in this application, peel off easily when the sticky tape that obtains is used the joint sealing, difficult damage carton is favorable to the recovery and recycle of carton.

In summary, the present application has the following beneficial effects:

1. the plasticizer is safer and harmless compared with the traditional dibutyl phthalate, and can better improve the strippability of the glue by compounding the plasticizer with hydroxyethyl cellulose;

2. the addition of the hydroxyethyl cellulose and the organic bentonite in the adhesive tape can obviously enhance the strippability of the adhesive, especially the addition of the organic bentonite can obviously enhance the strippability of the adhesive due to certain gelling effect and the change of the thixotropic property of a system, is more favorable for the gluing of the adhesive tape and improves the glue throwing phenomenon.

Detailed Description

The present application is further described in detail with reference to the following examples, which are specifically illustrated by the following: the following examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer, and the starting materials used in the following examples are available from ordinary commercial sources unless otherwise specified.

In the following examples, the emulsifier is fatty alcohol polyoxyethylene ether AEO-9;

the wetting agent is selected from dioctyl sodium sulfosuccinate OT-75;

selecting paraffin oil from aliphatic mineral oil;

the epoxy fatty acid methyl ester plasticizer can be a bio-ester plasticizer which is purchased from Suzhou Huashi environmental protection science and technology limited and has the model of epoxy methyl ester;

the organic bentonite in the application is a montmorillonite/organic ammonium compound;

the aqueous polyvinylidene chloride copolymer emulsion is available from Takotauo plastic raw material Co.Ltd of Dongguan, and the trade name is P530;

the defoaming agent is an organic silicon defoaming agent, and specifically, a BYK-019 defoaming agent purchased from Dayang New Material Co., Ltd, Shenzhen city can be selected.

Example 1

A preparation process of glue comprises the following steps:

s1, preparing a pre-dropping material:

s1-1: mixing 15kg of hydroxyethyl cellulose, 3kg of organic bentonite and 8kg of aliphatic mineral oil to prepare a mixed solution;

s1-2: mixing 25kg of emulsifier with 2000kg of water A, stirring for 30min, adding 90kg of acrylic acid and 2.5kg of plasticizer, adding 6000kg of butyl acetate, stirring, adding the mixed solution prepared in S1-1 and the defoaming agent with the total addition of 6% of the defoaming agent when the butyl acetate is added to a half, dissolving the defoaming agent in 15 times of water B by mass, adding, and continuing stirring for 40min to prepare a front drop feed;

s2, glue preparation:

s2-1: mixing the balance of water A in the raw materials with 5kg of baking soda, adding 15kg of front initiator-sodium persulfate when the temperature is raised to 80 ℃, stirring for 5min, adding the front drop prepared in the preparation step of the front drop material, synchronously dropping the balance of front initiator-sodium persulfate in the process of adding the front drop material, dissolving the balance of front initiator in 38 times of water B by mass, then dropping, finishing dropping within 3.5h, and preserving the heat at 80 ℃ for 70min after the dropping is finished;

s2-2: cooling to 70 ℃, adding a post-initiator-tert-butyl hydroperoxide solution, dissolving tert-butyl hydroperoxide in 3 times of water B by mass to obtain the post-initiator-hydroperoxide solution, stirring for 8min, and adding a rongalite solution at 65 ℃, wherein the rongalite solution is obtained by dissolving 6kg of rongalite in 15 times of water B by mass;

adding 70kg of ammonia water solution when the temperature is reduced to 50 ℃, wherein the ammonia water solution is obtained by mixing industrial ammonia water and water B according to the mass ratio of 2: 1;

s2-3: and then stirring for 10min, adding a wetting agent solution, wherein the wetting agent solution is obtained by dissolving 7kg of wetting agent in 3 times of water B by mass, stirring for 8min, adding the rest of defoaming agent solution, cooling to below 45 ℃, and outputting to obtain the glue.

In the method, the total addition amount of the defoaming agent is 5kg, and the total addition amount of the water A is 4000 kg; the total addition amount of the initiator is 30kg, wherein the total addition amount comprises 25kg of front initiator and the balance of rear initiator;

the mass ratio of the plasticizer is 1: 0.5 of a mixture of epoxy fatty acid methyl ester plasticizer and tributyl triacyl citrate.

Example 2

A method for preparing glue, which is carried out according to the method in the embodiment 1, except that:

s1, preparing a pre-dropping material:

s1-1: mixing 20kg of hydroxyethyl cellulose, 5kg of organic bentonite and 10kg of aliphatic mineral oil to prepare a mixed solution;

s1-2: mixing 30kg of emulsifier with 2200kg of water A, stirring for 30min, adding 100kg of acrylic acid and 3kg of plasticizer, then adding 6400kg of butyl acetate, stirring, adding the mixed solution prepared in S1-1 and the defoamer with the total addition of 6% of the defoamer when the butyl acetate is added to a half, dissolving the defoamer in 18 times of water B by mass, adding, and continuing stirring for 40min to prepare a pre-dropping material;

s2, glue preparation:

s2-1: mixing the residual water A in the raw materials with 8kg of baking soda by weight, adding 18kg of front initiator-sodium persulfate when the temperature is raised to 80 ℃, adding the front dropping material prepared in the preparation step of the front dropping material after 5min, synchronously dropping the residual front initiator-sodium persulfate in the process of adding the front dropping material, dissolving the residual front initiator in water B with the mass multiple of 40 times, then dropping, finishing dropping within 4h, and preserving the temperature at 85 ℃ for 60min after the dropping is finished;

s2-2: cooling to 72 ℃, adding a post-initiator-tert-butyl hydroperoxide solution, dissolving tert-butyl hydroperoxide in 3 times of water B by mass to obtain the post-initiator-hydroperoxide solution, stirring for 10min, and adding a rongalite solution at 65 ℃, wherein the rongalite solution is obtained by dissolving 9kg of rongalite in 18 times of water B by mass;

adding 80kg of ammonia water solution when the temperature is reduced to 50 ℃, wherein the ammonia water solution is obtained by mixing industrial ammonia water and water B according to the mass ratio of 2: 1;

s2-3: and then stirring for 10min, adding a wetting agent solution, wherein the wetting agent solution is obtained by dissolving 10kg of wetting agent in 3 times of water B by mass, stirring for 10min, adding the rest of the defoaming agent solution, cooling to below 45 ℃, and outputting to obtain the glue.

In the method, the total addition amount of the defoaming agent is 6kg, and the total addition amount of the water A is 4400 kg; the total addition amount of the initiator is 35kg, and the initiator comprises 30kg of a front initiator and the balance of a rear initiator by weight;

the mass ratio of the plasticizer is 1: 0.6 of a mixture of epoxy fatty acid methyl ester plasticizer and tributyl triacyl citrate.

Example 3

A preparation process of glue is carried out according to the method in the embodiment 1, except that,

s1, preparing a pre-dropping material:

s1-1: mixing 25kg of hydroxyethyl cellulose, 7kg of organic bentonite and 12kg of aliphatic mineral oil to prepare a mixed solution;

s1-2: mixing 35kg of emulsifier with 2500kg of water A, stirring for 30min, adding 110kg of acrylic acid and 4.5kg of plasticizer, then adding 6800kg of butyl acetate, stirring, adding the mixed solution prepared in S1-1 and the defoaming agent with the total addition of 6% of the defoaming agent when the butyl acetate is added to a half, dissolving the defoaming agent in 20 times of water B by mass, adding, continuously stirring for 40min, and preparing a front dropping material;

s2, glue preparation:

s2-1: mixing the residual water A in the raw materials with 10kg of baking soda by weight, adding 18kg of front initiator-sodium persulfate when the temperature is raised to 85 ℃, adding the front dropping material prepared in the preparation step of the front dropping material after 8min, synchronously dropping the residual front initiator-sodium persulfate in the process of adding the front dropping material, dissolving the residual front initiator in 42 times of water B by mass, then dropping, finishing dropping within 4h, and preserving the temperature at 85 ℃ for 70min after the dropping is finished;

s2-2: cooling to 73 ℃, adding a post-initiator-tert-butyl hydroperoxide solution, wherein the post-initiator-hydroperoxide solution is obtained by dissolving tert-butyl hydroperoxide in water B with a mass multiple of 4 times, stirring for 15min, and adding a rongalite solution at 70 ℃, wherein the rongalite solution is obtained by dissolving 12kg of rongalite in water B with a mass multiple of 20 times;

adding 90kg of ammonia water solution when the temperature is reduced to 50 ℃, wherein the ammonia water solution is obtained by mixing industrial ammonia water and water B according to the mass ratio of 2: 1;

s2-3: and then stirring for 10min, adding a wetting agent solution, wherein the wetting agent solution is obtained by dissolving 12kg of wetting agent in 4 times of water B by mass, stirring for 15min, adding the rest of the defoaming agent solution, cooling to below 45 ℃, and outputting to obtain the glue.

In the method, the total addition amount of the defoaming agent is 8kg, and the total addition amount of the water A is 5000 kg; the total addition amount of the initiator is 40kg, and the total addition amount of the initiator comprises 30kg of a front initiator and the balance of a rear initiator by weight;

the mass ratio of the plasticizer is 1: 0.8 of a mixture of epoxy fatty acid methyl ester plasticizer and tributyl triacyl citrate.

Example 4

A preparation process of glue is carried out according to the method in the embodiment 2, except that in the step S2-3, 8kg of aqueous polyvinylidene chloride copolymer emulsion is added after a wetting agent solution is added, stirring is carried out, and the rest of defoaming agent is added after the stirring.

Example 5

A preparation process of glue is carried out according to the method in the embodiment 2, except that in the step S2-3, 12kg of aqueous polyvinylidene chloride copolymer emulsion is added after a wetting agent solution is added, stirring is carried out, and the rest of defoaming agent is added after stirring.

Example 6

A preparation process of glue is carried out according to the method in the embodiment 2, except that in the step S2-3, 15kg of aqueous polyvinylidene chloride copolymer emulsion is added after a wetting agent solution is added, stirring is carried out, and the rest of defoaming agent is added after the stirring.

The application also discloses an adhesive tape adopting the glue, the adhesive tape comprises an adhesive tape film, the glue is coated on the surface of one side of the adhesive tape film, and the coating thickness is 0.02-0.04 mm.

Comparative example

Comparative example 1

A glue preparation method is carried out according to the method in the embodiment 2, except that organic bentonite, hydroxyethyl cellulose and a plasticizer are not added in the raw materials.

Comparative example 2

A glue preparation method is carried out according to the method in the embodiment 2, and the difference is that equal amount of organic bentonite and hydroxyethyl cellulose in raw materials is replaced by plasticizer.

Comparative example 3

A glue preparation method is carried out according to the method in the embodiment 2, and the difference is that dibutyl phthalate is selected as the plasticizer.

Comparative example 4

A preparation method of glue is carried out according to the method in the embodiment 2, except that in the step of preparing a dropwise material before S1, 30kg of emulsifier is mixed with 2200kg of water A, the mixture is stirred for 30min, 100kg of acrylic acid and 3kg of plasticizer are added, 6400kg of butyl acetate is added, the stirring is carried out, when the butyl acetate is added to half, 6kg of white carbon black, 18kg of talcum powder, 18kg of diatomite, 12kg of aliphatic mineral oil and defoamer with the total addition amount of 6% of the defoamer are added, the defoamer is dissolved in 18 times of water B by mass and then added, the stirring is continued for 40min, and the front dropwise material is prepared.

Comparative example 5

A glue preparation method, carried out as in example 2, except that bentonite was replaced with organobentonite in equal amounts.

Comparative example 6

A process for the preparation of a glue according to the method of example 2, with the difference that hydroxyethyl cellulose is replaced by organobentonite in equal amounts.

Comparative example 7

A glue preparation method, carried out as in example 2, except that organobentonite was replaced with hydroxyethyl cellulose in equal amounts.

Comparative example 8

A glue preparation method is carried out according to the method in the embodiment 2, and the difference is that the plasticizer is epoxy fatty acid methyl ester plasticizer.

Comparative example 9

A preparation method of glue is carried out according to the method in the embodiment 2, and the difference is that tributyl triacyl citrate is selected as a plasticizer.

Performance detection

The glues obtained in the above examples and comparative examples were applied to tapes, and the obtained tapes were tested for initial force (rolling ball test), peel force (90 °, 25mm) and permanent tack, respectively, and the test results of examples are shown in table 1 below and the test results of comparative examples are shown in table 2 below.

Table 1:

detecting items	Example 1	Example 2	Example 3	Example 4	Example 5	Example 6
							Initial force (#)	25	26	24	27	28	27
Peel force (N)	7.1	6.8	7.2	6.5	6.3	6.2
							Permanent adhesive force (h)	26	27	26	27	27	26

As can be seen from the above table 1, the adhesive tapes prepared by the method provided by the application have the performance meeting the requirements (the initial force is not less than 16#, the peeling force is 4.5-8.5N, and the permanent adhesion is not less than 24h), have excellent initial adhesion and good peeling performance, are not easy to influence the carton when used for sealing the carton, and are more convenient to apply.

Table 2:

referring to the test results of example 2 and comparative example 2 in combination with table 1 and table 2 above, it can be seen that the initial force and peel force performance is poor when only the plasticizer is added to the raw material; referring to the detection results of the embodiment 2, the comparative example 3 and the comparative example 4, it can be seen that the initial adhesive property and the peeling property of the adhesive tape obtained by compounding the traditional dibutyl phthalate plasticizer with the organic bentonite and other substances in the comparative example 3 and the initial adhesive property and the peeling property of the adhesive tape obtained by compounding the plasticizer and the white carbon black and other substances in the comparative example 4 are both weaker than those of the adhesive tape compounded by the plasticizer and the organic bentonite and other substances in the embodiment 2, particularly, the adhesive tape obtained by compounding the plasticizer and the white carbon black and other substances in the comparative example 4 adopts a safer and more environment-friendly plasticizer, but the performance is lower;

referring to the test performance of comparative examples 5 and 7, it can be seen that the initial force and the peeling performance are reduced compared to example 2 when the ordinary bentonite is added to the raw material, and the initial force and the peeling force are poor when only the plasticizer and the hydroxyethyl cellulose are added to the raw material according to the test result of comparative example 7; referring again to the test results of comparative example 6, it can be seen that when only the plasticizer and the organobentonite were added to the raw materials, the initial force and the peeling force were still inferior to those of example 2 in which the plasticizer, the organobentonite and the hydroxyethylcellulose were added.

In addition, it can be observed that in the process of preparing the adhesive tape by using the glue obtained in the embodiment of the application, compared with the glue prepared in the comparative examples 1, 2, 4, 5 and 7 without adding the organic bentonite, the whirl coating phenomenon of the glue prepared in the embodiment is greatly improved.

The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.