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A kind of stainless steel tackifier and its preparation method and application

A stainless steel and silicone rubber technology, applied in adhesives, non-polymer adhesive additives, non-polymer organic compound adhesives, etc., can solve the problems of poor compatibility of silicone rubber, deactivation of platinum catalysts, and loss of viscosity. performance and other issues, to achieve the effect of high peel strength, lower price and excellent bonding performance

Active Publication Date: 2022-05-20
山东宝龙达实业集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the inventors have found that, on the one hand, the tackifier prepared by the hydrosilylation method needs to use a platinum catalyst, which is expensive
On the other hand, other components in silicone rubber can also easily deactivate the platinum catalyst, lose the performance of thickening, and have poor compatibility with silicone rubber itself

Method used

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  • A kind of stainless steel tackifier and its preparation method and application
  • A kind of stainless steel tackifier and its preparation method and application

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preparation example Construction

[0017] In one or some embodiments of the present disclosure, a preparation method of a stainless steel adhesion promoter is provided, comprising the following steps: 1) Stir borate, acrylate and titanate to form a mixture, and react the mixture at a lower temperature For a short time, then heat up to a higher temperature and react for a longer time;

[0018] 2) Raise the temperature again and carry out vacuum distillation until there is no fraction to obtain the product.

[0019] The disclosure forms a chemical bond between borate and titanate and acrylic acid through transesterification, exposing more active sites of B-O, Ti-O and acrylic acid to form a chemical bond with the metal on the stainless steel surface, thereby Adheres to stainless steel surfaces. In addition, the inventors found in experiments that since the transesterification reactions of the three have more active groups, it is easy to cause gelation of the formed composite structure. The present disclosure co...

Embodiment 1

[0040] Present embodiment provides a kind of compound method of stainless steel and silicon rubber, comprises the steps:

[0041] (1) Put trimethyl borate, β-hydroxyethyl acrylate and tetraisopropyl titanate into a 250ml three-necked flask with a material ratio of 1:0.67:0.5, stir evenly, and react at 45°C for 3h, Then the temperature was raised to 65°C and reacted for 6h;

[0042] (2) Carry out vacuum distillation at 80°C until there is no fraction to obtain the product.

[0043] Add 1.5g of the product to 50g of 107 glue, then add 5g of methyltrimethoxysilane and 0.1g of organotin, stir evenly, and spread it on a stainless steel plate to prepare shear and peel samples. The shear strength and 180° peel strength test results are shown in Table 1.

Embodiment 2

[0045] Present embodiment provides a kind of compound method of stainless steel and silicon rubber, comprises the steps:

[0046](1) Put triethyl borate, β-hydroxyethyl acrylate, and tetraisopropyl titanate into a 250ml three-necked flask with a mass ratio of 1:0.67:0.5, stir evenly, and react at 45°C for 3h, Then the temperature was raised to 65°C and reacted for 6h;

[0047] (2) Carry out vacuum distillation at 80°C until there is no fraction to obtain the product.

[0048] Add 1.5g of the product to 50g of 107 glue, then add 5g of methyltrimethoxysilane and 0.1g of organotin, stir evenly, and spread it on a stainless steel plate to prepare shear and peel samples. The shear strength and 180° peel strength test results are shown in Table 1.

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Abstract

The disclosure belongs to the technical field of organosilicon material preparation, and specifically provides a stainless steel tackifier and its preparation method and application. The preparation method of the stainless steel tackifier comprises the following steps: 1) Stir boric acid ester, acrylate and titanate to form a mixture, react the mixture at a lower temperature for a short time, and then heat up to a higher temperature , react for a long time; raise the temperature again, carry out vacuum distillation, until there is no distillate, the product is obtained. To solve the tackifier prepared by the hydrosilylation method in the prior art, a platinum catalyst needs to be used, which is expensive. Moreover, other components in the silicone rubber also easily deactivate the platinum catalyst, lose the performance of thickening, and have poor compatibility with the silicone rubber itself.

Description

technical field [0001] The disclosure belongs to the technical field of organosilicon material preparation, and specifically provides a stainless steel tackifier and its preparation method and application. Background technique [0002] The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art. [0003] Silicone rubber does not have good adhesive properties due to its inertness. In order to improve the adhesion between silicone rubber and the base material, it is usually used to primer the base material or add a tackifier to the silicone rubber to enhance the adhesive performance of the silicone rubber. The solvent contained in the primer material will pollute the environment after volatilization. Therefore, from the perspective of environmental protection, it is an effective method to add a tackifier to the silicone rubber to improve its bonding with the substrate. At present, most of the tack...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J4/02C09J4/06C09J11/06
CPCC09J4/06C09J11/06
Inventor 王光祥曾庆铭张建叶世明陈怀良
Owner 山东宝龙达实业集团有限公司