阅读说明：本技术 高耐久弹性密封胶粘材料的制作方法 (Method for manufacturing high-durability elastic sealing adhesive material ) 是由 韩旭 吴肖芳 乔晋峰 张华� 王向东 李永 周温 王瑞海 王婧 于 2021-05-31 设计创作，主要内容包括：本发明属于胶粘材料技术领域,具体涉及高耐久弹性密封胶粘材料的制作方法。包括如下步骤：准备A组份材料包括端基聚醚组合物、扩链剂、纳米氧化物、偶联剂和阻燃剂；选取干净干燥容器,加入A组份材料,混合均匀后,放置一旁；另取干净干燥容器,按照2:1的比例将六亚甲基二异氰酸酯HDI和异氟尔酮二异氰酸酯IPDI混合,并搅拌均匀,放置一旁；选取一个干净干燥的AB胶筒,分别将A组份和B组份材料按照需要的比例分别添加到AB胶筒内；密封后,将AB胶筒和动态混合管组装,通过手动推进式AB胶枪,将AB胶筒内的材料喷涂在铁板上并静置。本发明具有操作简单,条件温和以及固化速度快的特点。(The invention belongs to the technical field of adhesive materials, and particularly relates to a manufacturing method of a high-durability elastic sealing adhesive material. The method comprises the following steps: preparing a component A material which comprises an end group polyether composition, a chain extender, a nano oxide, a coupling agent and a flame retardant; selecting a clean drying container, adding the component A material, uniformly mixing, and placing aside; mixing Hexamethylene Diisocyanate (HDI) and isophorone diisocyanate (IPDI) according to the ratio of 2:1 in another clean drying container, uniformly stirring, and standing aside; selecting a clean and dry AB rubber cylinder, and respectively adding the materials of the component A and the component B into the AB rubber cylinder according to a required proportion; after sealing, the AB glue cylinder and the dynamic mixing tube are assembled, and the material in the AB glue cylinder is sprayed on an iron plate and stands by a manual push type AB glue gun. The invention has the characteristics of simple operation, mild condition and high curing speed.)

1. The manufacturing method of the high-durability elastic sealing adhesive material is characterized by comprising the following steps of:

s1, preparing a component A material, wherein the component A material comprises an end group polyether composition, a chain extender, a nano oxide, a coupling agent and a flame retardant;

s2, selecting a clean and dry container, adding the component A material, uniformly mixing the component A material, and placing aside to finish the preparation of the component A material;

s3, preparing the material of the component B, taking another clean and dry container, mixing Hexamethylene Diisocyanate (HDI) and isophorone diisocyanate (IPDI) according to the proportion of 2:1, uniformly stirring, and placing aside to finish the preparation of the material of the component B;

s4, selecting a clean and dry AB rubber cylinder, and respectively adding the component A and the component B into the AB rubber cylinder according to the required proportion; after sealing, the AB glue cylinder and the dynamic mixing tube are assembled, and the material in the AB glue cylinder is sprayed on a clean iron plate and stands by a manual push type AB glue gun.

2. The method for manufacturing a highly durable elastic sealant adhesive material according to claim 1, further comprising the steps of:

s5, taking a plurality of clean and dry AB rubber cylinders, repeating the operation of the step S4 for a plurality of times, adding A, B component materials with different proportions each time, and keeping the rest operations unchanged;

s6, recording the solidification time of the material sprayed on the clean iron plate, and performing a strength test on the material mixed with the A, B components in various proportions.

3. The method for preparing the high-durability elastic sealing adhesive material according to claim 1, wherein in the component A, the component proportion of the terminal polyether composition is 20% -80%; the component proportion of the chain extender is 20-40%; the component proportion of the nano oxide is 0.5-10%; the component proportion of the coupling agent is 0.05% -1%; the proportion of the components of the flame retardant is 5%.

4. The method for manufacturing a highly durable elastic sealant adhesive material according to claim 1, wherein the ratio of the two materials of the component a and the component B added to the AB cartridge in step S4 is 1:1.

5. The method for manufacturing a highly durable elastic sealant adhesive material according to claim 2, wherein the specific number of times of repeating the operation of step S4 in step S5 is 5 times.

6. The method for manufacturing a highly durable elastic sealant adhesive material according to claim 5, wherein the ratio of the two materials of A, B component added in step S5 includes 1:0.5, 1:1.5, 1:2, 1:2.5 and 1: 3.

Technical Field

The invention belongs to the technical field of adhesive materials, and particularly relates to a manufacturing method of a high-durability elastic sealing adhesive material.

Background

The elastic sealing adhesive material is a two-component and spraying elastomer material, and can be used for a long time at the temperature of minus 80-100 ℃; the material can be adhered to various materials and is suitable for most substrate surfaces, such as surfaces of metal, wood and the like. The elongation at break, shear strength, tensile strength and flame retardant property of the elastic sealing adhesive material are influenced by the proportion of the material components contained in the elastic sealing adhesive material, however, when the existing elastic sealing adhesive material is manufactured, the proportion of the material components is not optimized properly, so that the elongation at break, the shear strength, the tensile strength and the flame retardant property of the elastic sealing adhesive material are poor, and potential safety hazards exist during use.

Therefore, it is necessary to design a method for manufacturing a highly durable elastic sealant adhesive material with high elongation at break, high shear strength, high tensile strength and good flame retardant property.

For example, the chinese patent application No. CN201910158466.7 discloses a thermosetting adhesive, a method for preparing the same, and an adhesive tape containing the adhesive, wherein the thermosetting adhesive comprises 2-50% of acrylic polymer, 5-94% of polyolefin elastomer, 1-20% of polyurethane, 1-10% of epoxy resin, 1-25% of organosilicon material with double bond, and 0.1-5% of crosslinking initiator. Although the prepared thermosetting adhesive has high adhesive strength, excellent heat resistance, strong corrosion resistance and short curing time, can be stored for 6 months at normal temperature without influencing the performance, and can be widely applied to machinery, ships, aerospace equipment, underwater equipment facilities, optical and electronic equipment, batteries, chemical engineering experiments and production equipment, the thermosetting adhesive has the defects of poor flame retardant property and stability, inapplicability to wood surfaces and potential safety hazards during use.

Disclosure of Invention

The invention provides a method for manufacturing a high-durability elastic sealing adhesive material with high elongation at break, high shear strength, high tensile strength and good flame retardant property, aiming at overcoming the problems that the elongation at break, the shear strength, the tensile strength and the flame retardant property of the elastic sealing adhesive material are poor and potential safety hazards exist in use because the proportion of the components of the material is not optimized properly in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme:

the manufacturing method of the high-durability elastic sealing adhesive material comprises the following steps:

s1, preparing a component A material, wherein the component A material comprises an end group polyether composition, a chain extender, a nano oxide, a coupling agent and a flame retardant;

s2, selecting a clean and dry container, adding the component A material, uniformly mixing the component A material, and placing aside to finish the preparation of the component A material;

s3, preparing the material of the component B, taking another clean and dry container, mixing Hexamethylene Diisocyanate (HDI) and isophorone diisocyanate (IPDI) according to the proportion of 2:1, uniformly stirring, and placing aside to finish the preparation of the material of the component B;

s4, selecting a clean and dry AB rubber cylinder, and respectively adding the component A and the component B into the AB rubber cylinder according to the required proportion; after sealing, the AB glue cylinder and the dynamic mixing tube are assembled, and the material in the AB glue cylinder is sprayed on a clean iron plate and stands by a manual push type AB glue gun.

Preferably, the method further comprises the following steps:

s5, taking a plurality of clean and dry AB rubber cylinders, repeating the operation of the step S4 for a plurality of times, adding A, B component materials with different proportions each time, and keeping the rest operations unchanged;

s6, recording the solidification time of the material sprayed on the clean iron plate, and performing a strength test on the material mixed with the A, B components in various proportions.

Preferably, in the material of the component A, the proportion of the components of the end group polyether composition is 20-80%; the component proportion of the chain extender is 20-40%; the component proportion of the nano oxide is 0.5-10%; the component proportion of the coupling agent is 0.05% -1%; the proportion of the components of the flame retardant is 5%.

Preferably, the ratio of the two materials of the component A and the component B added to the AB glue cylinder in the step S4 is 1:1.

Preferably, the specific number of times of repeating the operation of step S4 in step S5 is 5 times.

Preferably, the ratio of the two materials of A, B component added in step S5 includes 1:0.5, 1:1.5, 1:2, 1:2.5 and 1: 3.

Compared with the prior art, the invention has the beneficial effects that: (1) the high-durability elastic sealing adhesive material prepared by the method is safe, non-toxic, high in tolerance to environment, and has the characteristics of high elongation at break, high shear strength, high tensile strength and good flame retardant property; (2) the high-durability elastic sealing adhesive material prepared by the invention has excellent mechanical property and good material stability; (3) the high-durability elastic sealing adhesive material prepared by the method has the characteristics of simple operation, mild conditions and high curing speed.

Drawings

FIG. 1 is a flow chart of a method for manufacturing the high durability elastic sealant adhesive material of the present invention.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention, the following description will explain the embodiments of the present invention with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.

Example 1:

the manufacturing method of the high-durability elastic sealing adhesive material shown in fig. 1 comprises the following steps:

s1, preparing a component A material, wherein the component A material comprises an end group polyether composition, a chain extender, a nano oxide, a coupling agent and a flame retardant;

wherein the proportion of the components of the end group polyether composition is 20-80%; the component proportion of the chain extender is 20-40%; the component proportion of the nano oxide is 0.5-10%; the component proportion of the coupling agent is 0.05% -1%; the proportion of the components of the flame retardant is 5%. The fire retardant is FJ330 fire retardant.

S2, selecting a clean and dry container, adding the component A material, uniformly mixing the component A material, and placing aside to finish the preparation of the component A material;

s3, preparing the material of the component B, taking another clean and dry container, mixing Hexamethylene Diisocyanate (HDI) and isophorone diisocyanate (IPDI) according to the proportion of 2:1, uniformly stirring, and placing aside to finish the preparation of the material of the component B;

s4, selecting a clean and dry AB rubber cylinder, and respectively adding the component A and the component B into the AB rubber cylinder according to the required proportion; after sealing, the AB glue cylinder and the dynamic mixing tube are assembled, and the material in the AB glue cylinder is sprayed on a clean iron plate and stands by a manual push type AB glue gun.

Wherein the proportion of the component A and the component B is 1:1.

S5, taking five dry AB rubber cylinders, repeating the step S4 five times, adding A, B component materials with different proportions each time, and keeping the rest operations unchanged;

wherein the A, B component comprises two materials in a ratio of 1:0.5, 1:1.5, 1:2, 1:2.5 and 1:3, and the adhesive material of A: B: 1:0.5 is C1; the adhesive material of A: B-1: 1 is C2; the adhesive material of A: B ═ 1:1.5 is C3; the adhesive material of A: B ═ 1:2 is C4; the adhesive material of A: B ═ 1:2.5 is C5; the adhesive material of a: B ═ 1:3 is C6.

S6, recording the solidification time of the material sprayed on the clean iron plate, and performing a strength test on the material mixed with the A, B components in various proportions.

Wherein, the strength test comprises elongation at break, shear strength and tensile strength test, and the specific results are shown in the following table 1:

TABLE 1 Experimental data for testing the strength of adhesive materials with A, B components in different proportions

As can be seen from table 1, the curing time of the adhesive materials C1, C2, C3, C4, C5 and C6 are the same, the elongation at break of the adhesive material C2 is the highest, the shear strength of the adhesive material C2 is the highest, the tensile strength of the adhesive material C2 is the highest, and the flame retardant adhesive materials C1, C2, C3, C4, C5 and C6 are the same. Therefore, the elongation at break, shear strength, tensile strength and flame retardant properties of the sealant adhesive material are best at a material ratio of A, B component of 1:1.

The high-durability elastic sealing adhesive material prepared by the invention is safe, nontoxic, high in environmental tolerance, insensitive to moisture and humidity, free of influence on reaction and curing of the adhesive material due to the temperature and humidity of the construction environment, capable of being used under the high-temperature or low-temperature environment condition, and has the characteristics of high elongation at break, high shear strength, high tensile strength and good flame retardant property; the high-durability elastic sealing adhesive material prepared by the invention has excellent mechanical property and good material stability; the high-durability elastic sealing adhesive material prepared by the method has the characteristics of simple operation, mild conditions and high curing speed.

The foregoing has outlined rather broadly the preferred embodiments and principles of the present invention and it will be appreciated that those skilled in the art may devise variations of the present invention that are within the spirit and scope of the appended claims.