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Epoxy-modified organic silicone resin for manufacturing composite glue, and processing technology thereof

A technology of epoxy resin and silicone, which is applied in the direction of epoxy resin glue, adhesive, adhesive type, etc., can solve the problems of poor compatibility between silicone and epoxy resin, and achieve good weather resistance, easy operation, and improved The effect of weather resistance

Active Publication Date: 2012-09-26
江苏力宝建材工业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the compatibility between silicone and epoxy resin is poor, and as time goes on, the two will naturally separate; the difficulty in whether the greatest advantages of both silicone and epoxy resin can be used is to find a suitable functional group that depends on silicone And the method of chemical grafting, there is no relevant report yet

Method used

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  • Epoxy-modified organic silicone resin for manufacturing composite glue, and processing technology thereof
  • Epoxy-modified organic silicone resin for manufacturing composite glue, and processing technology thereof
  • Epoxy-modified organic silicone resin for manufacturing composite glue, and processing technology thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Choose 100 parts by weight of epoxy resin A (E-51, Jiangsu Sanmu Group product), stir and heat to 70°C in a reactor,

[0039]

[0040] Add 60 parts by weight of silicone resin B (WD-42, product of Hubei Wuda New Organosilicon Materials Co., Ltd.) to the aforementioned reactor

[0041] C 6 h 5 -NH-CH 2 -Si(-OCH 2 CH 3 ) 3

[0042] Add 0.8 parts of phosphoric acid catalyst after the silicone resin is added dropwise. Continue to raise the temperature to 110-130°C, the reaction time is 6-12 hours, and add an appropriate amount of sodium hydroxide aqueous solution to neutralize the pH to 6.

[0043] The equation for the above reaction is as follows:

[0044]

[0045] where R is C 12 ~C 18 straight-chain or branched-chain alkyl groups.

Embodiment 2

[0047] Choose 100 parts by weight of epoxy resin A (E-51, Jiangsu Sanmu Group product), stir and heat to 85°C in a reactor,

[0048]

[0049] Add 120 parts by weight of silicone resin B to the aforementioned reactor

[0050] h 2 N-CH 2 -CH 2 -Si(-OCH 2 CH 3 ) 3

[0051]The synthesis process is similar to Example 1, but in step c, the temperature is controlled between 120-125° C., and the reaction time is 8-10 hours.

[0052] The reaction equation is as follows:

[0053]

[0054] where R is C 12 ~C 18 straight-chain or branched-chain alkyl groups.

Embodiment 3

[0056] Choose 100 parts by weight of epoxy resin A (E-51, Jiangsu Sanmu Group product), stir and heat to 85°C in a reactor,

[0057]

[0058] Add 120 parts by weight of silicone resin B to the aforementioned reactor

[0059] h 2 N-(C 6 h 4 )-Si(-OCH 2 CH 3 ) 3

[0060] The synthesis process is similar to Example 1, but in step c, the temperature is controlled between 120-125° C., and the reaction time is 8-10 hours.

[0061] The reaction equation is as follows:

[0062]

[0063] where R is C 12 ~C 18 straight-chain or branched-chain alkyl groups.

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Abstract

The invention provides a processing technology of an epoxy-modified organic silicone resin. The technology comprises the steps of: heating epoxy resin A in a reactor to a temperature of 50 to 95 DEG C while stirring; dropping organic silicone resin B into the reactor, and adding a catalyst to the reactor; heating the mixture to a temperature of 110 to 135 DEG C, and allowing the mixture to react for 6 to 12 hours with the temperature maintained. The invention also provides an epoxy-modified organic silicone resin used for manufacturing composite glue manufactured with the method. According to the invention, with molecule designing and clipping methods, a type of multi-functional resin is synthesized. High strength and corrosion resistance of epoxy resin and weatherability of organic silicone resin are combined in the multi-functional resin. Modified composite glue manufactured from the modified organic silicone resin is greatly improved in flexibility and weatherability. Products employing the composite glue are greatly improved in weatherability, shock resistance and impact-resistance.

Description

Technical field: [0001] The invention relates to an adhesive for construction, in particular to an epoxy-modified silicone resin for composite adhesive, and a processing technology thereof. Background technique: [0002] Stone composite board refers to cutting high-quality stone into 3-5mm thin boards, and using thin board composite glue to bond them on substrates such as cheap stone, ceramic tiles, glass and honeycomb aluminum boards to form a new type of composite board. This kind of composite material is used for indoor and outdoor decoration, which requires high dimensional stability, strength retention and weather resistance of the material. There is a large difference in expansion coefficient between stone and glass and metal plates, and the size of the material is easily deformed; natural stone is a porous material, and rainwater and other corrosive substances can easily erode the glue layer through the stone. Therefore, the quality requirements of the adhesive are e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G59/14C09J163/00
Inventor 林建伟夏文进丁逢春
Owner 江苏力宝建材工业有限公司
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