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Addition type organic silicon rubber tackifier, preparation method and application thereof

A technology of silicone rubber and addition molding, which is applied in the direction of adhesives, adhesive additives, polymer adhesive additives, etc., can solve the problems of poor bonding performance of contact materials, and achieve improved design space, good bonding performance, The effect of simple preparation method

Active Publication Date: 2015-07-15
MIANYANG WELLS ELECTRONICS MATERIAIS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention overcomes the deficiencies of the prior art, and provides an addition-type silicone rubber tackifier with good adhesion to the base material after curing at medium temperature and its preparation method and application method, in order to solve the problem of addition-type silicone rubber. The problem of poor adhesion to partially contacted materials

Method used

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  • Addition type organic silicon rubber tackifier, preparation method and application thereof
  • Addition type organic silicon rubber tackifier, preparation method and application thereof
  • Addition type organic silicon rubber tackifier, preparation method and application thereof

Examples

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Effect test

Synthetic example 1

[0029] Add 51.00g vinyl hydroxy silicone oil (containing 0.18mol-OH, vinyl content is 6.5%wt, hydroxyl content is 6%wt) and 42.54g γ-glycidyl etheroxypropyltrimethoxysilane (0.18 mol), stirred at room temperature for 10 min, added 0.18 g of tetrabutyl titanate dropwise with a pipette, then heated to 90 °C for 2 hours under nitrogen protection, and then distilled at 50-90 °C for 2 hours to remove small molecules. Under the condition of keeping the vacuum degree, it was lowered to room temperature, and the tackifier 1 was prepared, and the yield was 96%.

Synthetic example 2

[0031]Add 51.00g of vinyl hydroxy silicone oil (containing 0.18mol–OH, vinyl content of 6.5%wt, hydroxyl content of 6%wt) and 50.12g of γ-glycidyl etheroxypropyl triethoxysilane ( 0.18mol), stirred at room temperature for 10min, added dropwise 0.20g tetrabutyl titanate with a pipette, then raised the temperature to 90°C for 2 hours under nitrogen protection, and then distilled under reduced pressure at 50-90°C for 2 hours to remove small molecules. Decrease to room temperature under the condition of maintaining the vacuum degree to prepare tackifier 2 with a yield of 95%.

Synthetic example 3

[0033] Add 51.00g of vinyl hydroxy silicone oil (containing 0.18mol–OH, vinyl content of 6.5%wt, hydroxyl content of 6%wt) and 39.66g of γ-glycidylpropylmethyldimethoxysilane into a 250mL three-necked bottle (0.18mol), stirred at room temperature for 10min, added dropwise 0.25g of ethyl acetoacetate complexed isopropyl titanate with a pipette, then raised the temperature to 70°C for 4 hours under the protection of nitrogen, and then distilled under reduced pressure at 50-90°C for 2 hours to remove small molecules. Decrease to room temperature under the condition of maintaining the vacuum degree to prepare tackifier 3 with a yield of 95%.

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Abstract

The invention discloses addition type organic silicon rubber tackifier capable of improving adhesion between addition type organic silicon rubber and base materials after the addition type organic silicon rubber is cured at moderate temperature, and a preparation method and application of the addition type organic silicon rubber tackifier. The tackifier is prepared through vinyl hydroxyl silicone oil, glycidyl ether alkoxy silane and titanate catalysts. The preparation method includes the following steps that the vinyl hydroxyl silicone oil and glycidyl ether alkoxy silane are mixed evenly at room temperature, added with phthalic ester in a stirring state and heated to 60-100 DEG C, and reacts for 1-6 hours, and the reaction mixture is obtained; the mixture is decompressed at 60-80 DEG C to remove low-boiling-point substances, keeps in a vacuum state, and is cooled to the room temperature, and the tackifier is obtained; the addition type organic silicon rubber tackifier is matched with auxiliaries to be applied to addition type silicon rubber. The tackifier is added into addition type organic silicon rubber so that the silicon rubber can have good adhesion with base materials especially polycarbonate after the silicon rubber is cured at moderate temperature.

Description

technical field [0001] The embodiments of the present invention relate to the field of chemical industry, and more particularly, the embodiments of the present invention relate to an addition type silicone rubber tackifier and a preparation method and an application method thereof. Background technique [0002] With the development and progress of today's electronic technology, electronic components and integrated circuits are increasingly integrated, miniaturized and modularized, and the working environment is more severe, which puts forward higher requirements for the stability of electronic devices. Electronic packaging technology can strengthen the integrity of electronic devices, prevent the erosion of electronic components by moisture, dust and harmful gases, improve the resistance of components to external shocks and vibrations, and stabilize component parameters. Therefore, the performance of the packaging material determines the service life of electronic components...

Claims

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Application Information

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IPC IPC(8): C08G77/38C09J183/07C09J11/08C09J11/06C09J11/04
Inventor 高帅刘良军陆南平
Owner MIANYANG WELLS ELECTRONICS MATERIAIS
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