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Organic silicone modified epoxy resin sealant and preparation method thereof

An epoxy resin and silicone technology, applied in epoxy resin glue, chemical instruments and methods, adhesives, etc., can solve the problems of long curing time, low bonding strength, short life, etc., and achieve simple process and adhesion. Good, good sealing effect

Inactive Publication Date: 2014-07-02
GUANGDONG XINZHAN NEW CHEM MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Silicone sealant has been widely used due to its excellent high and low temperature resistance and anti-aging performance, but due to the defects in the design of traditional sealants, its life is short, poor sealing, long curing time, low bond strength, and anti-aging The time is short and cannot meet the needs of users

Method used

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  • Organic silicone modified epoxy resin sealant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The silicone modified epoxy resin sealant of the present invention consists of the following components:

[0040] 5 parts by weight of phenolic resin

[0041] Silicone modified epoxy resin 30 parts by weight

[0042] Liquid end carboxylated nitrile rubber 2 parts by weight

[0043] Fumed silica 1 part by weight

[0044] 0.5 parts by weight of triethylamine

[0045] Silane coupling agent KH550 1 part by weight

[0046] 1 part by weight of maleic anhydride and internal methine tetrahydrophthalic anhydride mixture

[0047] Wherein the weight ratio of maleic anhydride and internal methine tetrahydrophthalic anhydride is 4:3;

[0048] 10 parts by weight of the mixture of PVC paste resin and glass fiber

[0049] Among them, the weight ratio of PVC paste resin to glass fiber is 3:8.

[0050] Preparation:

[0051] C, preparation of organosilicon modified epoxy resin:

[0052] In the reaction kettle, add 80 parts by weight of hydroxyl-terminated polydimethylsiloxane, 30...

Embodiment 2

[0056] The silicone modified epoxy resin sealant of the present invention consists of the following components:

[0057] 15 parts by weight of phenolic resin

[0058] Silicone modified epoxy resin 60 parts by weight

[0059] 10 parts by weight of liquid end carboxylated nitrile rubber

[0060] Organic bentonite 6 parts by weight

[0061] 4 parts by weight of pyridine

[0062] Silane coupling agent KH560 8 parts by weight

[0063] Mixture of maleic anhydride and endomethylene tetrahydrophthalic anhydride 8 parts by weight

[0064] Wherein the weight ratio of maleic anhydride and internal methine tetrahydrophthalic anhydride is 4:3;

[0065]80 parts by weight of the mixture of terpene resin and titanium dioxide

[0066] Wherein the weight ratio of terpene resin to titanium dioxide is 3:8.

[0067] Preparation:

[0068] A, preparation of silicone modified epoxy resin:

[0069] In the reaction kettle, add 80 parts by weight of hydroxyl-terminated polydimethylsiloxane, 30 ...

Embodiment 3

[0073] The silicone modified epoxy resin sealant of the present invention consists of the following components:

[0074] 8 parts by weight of phenolic resin

[0075] Silicone modified epoxy resin 40 parts by weight

[0076] 5 parts by weight of liquid end carboxylated nitrile rubber

[0077] Fumed silica, organic bentonite 3 parts by weight

[0078] 2 parts by weight of pyridine and benzyldimethylamine

[0079] The mixture of silane coupling agent KH56 and KH792 3 parts by weight

[0080] 4 parts by weight of a mixture of maleic anhydride and endomethylene tetrahydrophthalic anhydride

[0081] Among them, the weight ratio of maleic anhydride and internal methine tetrahydrophthalic anhydride is 4:3; a mixture of PVC paste resin, acrylate oligomer, silicon micropowder, and alumina

[0082] 30 parts by weight

[0083] Among them, the weight ratio of PVC paste resin, acrylate oligomer, silica powder and alumina is 3:8.

[0...

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Abstract

The invention discloses organic silicone modified epoxy resin sealant and a preparation method thereof. The sealant comprises 5-15 parts of phenolic resin, 30-60 parts of organic silicone modified epoxy resin, 2-10 parts of liquid carboxyl nitrile rubber, 1-6 parts of thixotropic agent, 0.5-4 parts of accelerant, 1-8 parts of coupling agent, 1-8 parts of curing agent and 10-80 parts of filler. The preparation method comprises the steps of evenly agitating and mixing the phenolic resin, the organic silicone modified epoxy resin and the liquid carboxyl nitrile rubber in a water bath at 50-70 DEG C, adding the filler and evenly agitating; adding the thixotropic agent, the coupling agent and the curing agent, heating to 70-90 DEG C, evenly agitating, and defoaming in vacuum and then cooling to room temperature, and adding the accelerant at 40-50 DEG C and agitating and evenly mixing. The sealant disclosed by the invention is reasonable in component formula, simple in preparation technology, good in sealing property, and can be used as caulking material in buildings, squares and highways, and also can be used for sealing in the fields of automobile making, glazing and glass works, electronic filling, submarines, rockets and the like.

Description

technical field [0001] The invention relates to a silicone-modified epoxy resin sealant; the invention also relates to a method for preparing the silicone-modified epoxy resin sealant. Background technique [0002] Silicone sealant has been widely used due to its excellent high and low temperature resistance and anti-aging performance, but due to the defects in the design of traditional sealants, its life is short, poor sealing, long curing time, low bond strength, and anti-aging Time is short, unable to meet the needs of users. Contents of the invention [0003] The purpose of the present invention is to provide a kind of silicone modified epoxy resin sealant with good sealing performance and high bonding strength in order to overcome the deficiencies in the prior art; [0004] Another object of the present invention is to provide a method for preparing the silicone-modified epoxy resin sealant. [0005] In order to achieve the above object, the present invention adopts...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J163/02C09J161/06C09J113/00C09J11/04C09J11/06C09J11/08C08G59/14C09K3/10
Inventor 黄活阳
Owner GUANGDONG XINZHAN NEW CHEM MATERIAL