Preparation method of adhesive
A binder and resin technology, applied in the field of materials, can solve the problems of low shear strength, poor toughness, and small temperature adaptation range, and achieve the effect of excellent high temperature resistance and high adhesion
Active Publication Date: 2015-02-18
SHENZHEN LICHANGSHI ADHESIVE PROD
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- Application Information
AI Technical Summary
Problems solved by technology
However, the existing above-mentioned adhesives all have the disadvantages of small temperature adaptation range, low shear strength, poor durability and poor toughness.
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0018] a) Weigh 25 parts of epoxy-modified hydroxyacrylic resin, 25 parts of thermoplastic acrylic resin with a weight-average molecular weight of 70000-75000, and 20 parts of silicone-modified acrylic resin, add them to the mixing tank in turn, and stir fully at a speed of 100rpm 40 minutes;
[0019] b) Continue to add 10 parts of 6-ethoxy-2,2,4-trimethyl-1,2-dihydroquinoline, 10 parts of melamine resin, 7 parts of phenyltrichlorosilane, 2,4-dichloro 10 parts of benzoyl peroxide, 5 parts of vinyltrimethoxysilane, fully stirred at 100 rpm for 60 minutes;
[0020] c) Continue to add 7 parts of titanium dioxide, 5 parts of attapulgite powder, 5 parts of dichlorotetrafluoroethane, and 20 parts of ethylene glycol monobutyl ether into the mixture in step b), and fully stir at a speed of 100 rpm for 60 minutes to obtain Adhesive products.
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Abstract
The invention discloses a preparation method of an adhesive. The adhesive comprises the following components in parts by weight: 25 parts of epoxy modified hydroxy acrylic resin, 25 parts of thermoplastic acrylic resin with the weight average molecular weight of about 70000-75000, 20 parts of organic silicon modified acrylic resin, 10 parts of 6-ethoxy-2,2,4-trimethyl-1,2-dihydroquinoline, 10 parts of melamine resin, 7 parts of phenyl trichlorosilane, 10 parts of 2,4-dichlorobenzoperoxide, 5 parts of vinyl trimethoxy silane, 7 parts of titanium white, 5 parts of attapulgite powder, 5 parts of dichlorotetra-fluoroethane and 20 parts of ethylene glycol monobutyl ether. The components are mixed and stirred to obtain the adhesive. The adhesive has higher temperature application range and obviously higher shear strength.
Description
technical field [0001] The invention relates to a preparation method of a binder, which belongs to the field of materials. Background technique [0002] Thermoplastic resin modified epoxy resin has better heat resistance. At present, the thermoplastic resins used for toughening epoxy adhesives mainly include polyvinyl acetal, polycarbonate, nylon, polyfeng and the like. Polyvinyl acetal is a thermoplastic linear polymer with good miscibility with epoxy resin. Due to the presence of a hydroxyl group in its molecule, it can undergo etherification reaction with epoxy resin, thus playing a toughening effect. In the prior art, there is a new type of structural adhesive made of polyvinyl acetal as the "skeleton material" and E5 epoxy resin as the adhesive. In the prior art, silicone resin and polyvinyl butyral are used to compound and modify epoxy E-42 to prepare a new type of epoxy structural adhesive. However, the existing above-mentioned adhesives all have the disadvantages...
Claims
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IPC IPC(8): C09J133/00C09J133/04C09J11/04C09J11/06C09J11/08
Inventor 张亦彬
Owner SHENZHEN LICHANGSHI ADHESIVE PROD