阅读说明：本技术 高强度弹性密封胶粘材料的制作方法 (Method for manufacturing high-strength 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,具体涉及高强度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；选取容器,加入A组份材料,混合均匀后,放置一旁；准备B组份材料,另取多个容器,按照不同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；将A组份材料分别与各个B组份材料,均按照1:1的比例添加至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,将材料依次喷涂在铁板上并静置。本发明具有操作简单,条件温和以及能够加快密封胶粘材料固化速度的特点。(The invention belongs to the technical field of adhesive materials, and particularly relates to a manufacturing method of a high-strength 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 container, adding the component A material, uniformly mixing, and placing aside; preparing the component B material, taking a plurality of containers, mixing Hexamethylene Diisocyanate (HDI) and isophorone diisocyanate (IPDI) according to different proportions, uniformly stirring, and placing aside; respectively adding the component A material and each component B material into the AB rubber cylinder according to the proportion of 1: 1; after sealing, the AB glue cylinder and the dynamic mixing tube were assembled, and the materials were sequentially sprayed on an iron plate and left to stand by a manual push-type AB glue gun. The method has the characteristics of simple operation, mild conditions and capability of accelerating the curing speed of the sealing adhesive material.)

1. The manufacturing method of the high-strength 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 component B material, taking a plurality of clean and dry containers, mixing Hexamethylene Diisocyanate (HDI) and isophorone diisocyanate (IPDI) according to different proportions, uniformly stirring, and placing aside to finish the preparation of the component B material;

s4, adding the component A material and each component B material prepared in the step S3 into the AB rubber cylinder according to the proportion of 1: 1; after sealing, the AB glue cylinder and the dynamic mixing tube are assembled, and the materials with the well-proportioned components are sequentially sprayed on a clean iron plate through a manual push type AB glue gun and are kept stand.

2. The method for manufacturing a high-strength elastic sealing adhesive material according to claim 1, further comprising the steps of:

and S5, recording the solidification time of each group of materials sprayed on the clean iron plate, and carrying out strength test on each group of materials obtained after spraying in the step S4.

3. The method for preparing the high-strength elastic sealing adhesive material according to claim 1, wherein the component proportion of the end group polyether composition in the component A material 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 high-strength elastic sealing adhesive material according to claim 1, wherein the number of the clean dry containers in step S3 is specifically 6.

5. The method of claim 4, wherein 6 parts of the mixed B component materials of HDI and IPDI are obtained after the step S3 is completed.

6. The method of manufacturing a high strength elastic seal adhesive material according to claim 4 or 5, wherein the mixing ratio of HDI and IPDI in step S3 includes 1:1, 1:2, 2:1, 3:1, 4:1 and 5: 1.

Technical Field

The invention belongs to the technical field of adhesive materials, and particularly relates to a manufacturing method of a high-strength 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, because the proportion of the material components is not optimized properly, the curing speed of the sealing adhesive material is very slow, the manufacturing efficiency is influenced, and meanwhile, the potential safety hazard also exists when the elastic sealing adhesive material is used.

Therefore, it is necessary to design a method for manufacturing a high-strength elastic sealing adhesive material capable of accelerating the curing speed of the sealing adhesive material.

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, potential safety hazards during use, and low manufacturing efficiency due to low curing speed of the prepared thermosetting adhesive.

Disclosure of Invention

The invention provides a method for manufacturing a high-strength elastic sealing adhesive material, which can accelerate the curing speed of the sealing adhesive material and aims to solve the problems that the curing speed of the sealing adhesive material is very low, the manufacturing efficiency is influenced and potential safety hazards exist in the use process of the existing elastic sealing adhesive material in the prior art because the component proportion of the material is not properly optimized in the manufacturing process.

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

the manufacturing method of the high-strength 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 component B material, taking a plurality of clean and dry containers, mixing Hexamethylene Diisocyanate (HDI) and isophorone diisocyanate (IPDI) according to different proportions, uniformly stirring, and placing aside to finish the preparation of the component B material;

s4, adding the component A material and each component B material prepared in the step S3 into the AB rubber cylinder according to the proportion of 1: 1; after sealing, the AB glue cylinder and the dynamic mixing tube are assembled, and the materials with the well-proportioned components are sequentially sprayed on a clean iron plate through a manual push type AB glue gun and are kept stand.

Preferably, the method further comprises the following steps:

and S5, recording the solidification time of each group of materials sprayed on the clean iron plate, and carrying out strength test on each group of materials obtained after spraying in the step S4.

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 number of the clean dry containers in the step S3 is specifically 6.

Preferably, after the step S3 is completed, 6 parts of mixed HDI and IPDI component B materials with different proportions are obtained.

Preferably, the mixing ratio of HDI and IPDI in step S3 includes 1:1, 1:2, 2:1, 3:1, 4:1 and 5: 1.

Compared with the prior art, the invention has the beneficial effects that: (1) the high-strength 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-strength elastic sealing adhesive material prepared by the invention has excellent mechanical property and good material stability; (3) the method for manufacturing the high-strength elastic sealing adhesive material has the characteristics of simple operation, mild conditions and capability of accelerating the curing speed of the sealing adhesive material.

Drawings

FIG. 1 is a flow chart of a method for manufacturing the high-strength elastic sealing 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-strength 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 a component B material, taking six clean drying containers, mixing Hexamethylene Diisocyanate (HDI) and isophorone diisocyanate (IPDI) according to different proportions, uniformly stirring, and placing aside to finish the preparation of the component B material, thereby finally obtaining six parts of the component B material mixed by HDI and IPDI according to different proportions;

the HDI and IPDI mixing ratio comprises 1:1, 1:2, 2:1, 3:1, 4:1 and 5:1, and a mixed material of HDI and IPDI being 1:1 is recorded as B1; HDI, IPDI is 1:2 mixed material B2; the mixed material of HDI, IPDI 2:1 is B3; HDI, IPDI is 3:1, and the mixed material is B4; HDI, IPDI is mixed material of 4:1 is B5; HDI to IPDI ═ 5:1 mixed material is B6.

S4, adding the component A material and each component B material prepared in the step S3 into the AB rubber cylinder according to the proportion of 1: 1; after sealing, the AB glue cylinder and the dynamic mixing tube are assembled, and the materials with the well-proportioned components are sequentially sprayed on a clean iron plate through a manual push type AB glue gun and are kept stand.

In step S4, six clean and dry AB glue cartridges are taken, each AB glue cartridge corresponds to a part of A, B component material, the component a is added to the glue cartridges according to the ratio of 1:1 with the components B1, B2, B3, B4, B5 and B6, and the glue cartridges are sealed and are correspondingly numbered as C1, C2, C3, C4, C5 and C6.

And S5, recording the solidification time of each group of materials sprayed on the clean iron plate, and carrying out strength test on each group of materials obtained after spraying in the step S4.

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 Strength test Experimental data for adhesive materials under different ratios of HDI and IPDI

As can be seen from table 1, the setting times of the adhesive materials C3 and C6 are the same and shortest, the elongation at break of the adhesive material C3 is the highest, the shear strength of the adhesive material C2 is the highest, the tensile strength of the adhesive material C3 is the highest, and the flame retardant adhesive materials C1, C2, C3, C4, C5 and C6 are the same. Therefore, in the component B material, when the ratio of HDI to IPDI is 2:1, the sealing adhesive material has the advantages of fastest solidification speed, optimal elongation at break, and better shear strength, tensile strength and flame retardant property.

The high-strength 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-strength elastic sealing adhesive material prepared by the invention has excellent mechanical property and good material stability; the method for manufacturing the high-strength elastic sealing adhesive material has the characteristics of simple operation, mild conditions and capability of accelerating the curing speed of the sealing adhesive material.

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.