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Toughened abrasion-resistant epoxy resin cement gum and preparation method thereof

A technology of epoxy resin mastic and epoxy resin, which is applied in the direction of epoxy resin coatings and coatings, can solve the problems of brittleness, poor impact resistance, high cross-linking density, poor weather resistance, etc., and achieve strength compensation Loss, improve UV resistance, high strength effect

Active Publication Date: 2020-09-01
杭州每步材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Epoxy resin is one of the most widely used thermosetting resin types in modern industry. It has excellent corrosion resistance, chemical resistance, good moisture resistance, solvent resistance, excellent adhesion and easy curing, but after curing The cross-linking density is high, and it is a three-dimensional network structure, so there are deficiencies such as large internal stress, brittleness, poor impact resistance, and poor weather resistance.

Method used

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  • Toughened abrasion-resistant epoxy resin cement gum and preparation method thereof
  • Toughened abrasion-resistant epoxy resin cement gum and preparation method thereof
  • Toughened abrasion-resistant epoxy resin cement gum and preparation method thereof

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preparation example Construction

[0042] The embodiment of the present application also relates to a preparation method of the aforementioned toughened anti-abrasion epoxy resin mastic, comprising the following steps:

[0043](1) Mix the epoxy resin, diluent, and active diluent AGE in component A, stir evenly, put it into a three-roller machine, then add fumed silica and nano light calcium bromide, and grind until the fineness is less than 50;

[0044] (2) Mix the curing agent in component B and the DMP-30 accelerator and stir evenly, put it into a three-roll machine, then add nano light calcium bromide and graphene oxide nanosheets, and grind until the fineness is less than 50;

[0045] (3) Mix the mixture prepared in step (1) and step (2) in proportion, and manually stir with a three-roll machine to obtain the cement.

[0046] As a further optimized solution, this application also provides another method for preparing the aforementioned toughened anti-abrasion epoxy resin mastic. Specifically, the modified b...

Embodiment 1

[0055] A toughened anti-abrasion epoxy resin mastic, composed of component A and component B, the ratio of component A to component B is 4:1, component A is composed of the following components by mass: Epoxy resin: 50 parts, 11 parts of diluent, 6 parts of reactive diluent AGE, 5 parts of KH5605, 12 parts of fumed silica, 20 parts of nano light calcium bromide; component B is composed of the following parts by mass: curing agent 70 parts, 12 parts of DMP-30 accelerator, 15 parts of nano light calcium bromide, 3 parts of graphene oxide nanosheets;

[0056] The epoxy resin is composed of a bonding body and a modified body, the bonding body is a bisphenol A type epoxy resin or a bisphenol F type epoxy resin, and the modified body is an epoxy equivalent of 400-900g / mol of epoxy-terminated polysiloxane, the mass ratio of adhesive main body and modified main body is 10:1;

[0057] The curing agent is a composite curing agent composed of polycondensation modified fatty amine adduc...

Embodiment 2

[0064] A toughened anti-abrasion epoxy resin mastic, composed of component A and component B, the ratio of component A to component B is 4:1, component A is composed of the following components by mass: Epoxy resin: 50 parts, 11 parts of diluent, 6 parts of reactive diluent AGE, 5 parts of KH5605, 12 parts of fumed silica, 20 parts of nano light calcium bromide; component B is composed of the following parts by mass: curing agent 70 parts, 12 parts of DMP-30 accelerator, 15 parts of nano light calcium bromide, 3 parts of graphene oxide nanosheets;

[0065] The epoxy resin is composed of a bonding body and a modified body, the bonding body is a bisphenol A type epoxy resin or a bisphenol F type epoxy resin, and the modified body is an epoxy equivalent of 400-900g / mol of epoxy-terminated polysiloxane, the mass ratio of adhesive main body and modified main body is 10:1;

[0066] The curing agent is a composite curing agent composed of polycondensation modified fatty amine adduc...

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Abstract

The invention provides toughened abrasion-resistant epoxy resin cement gum which is composed of a component A and a component B. The component A comprises epoxy resin, a diluent, an active diluent AGE, a silane coupling agent, fumed silica and brominated nano light calcium carbonate. The component B is prepared from a curing agent, a DMP-30 accelerant, brominated nano light calcium carbonate and graphene oxide nanosheets. The epoxy resin is composed of a bonding body and a modifying body, wherein the bonding body is bisphenol A type epoxy resin or bisphenol F type epoxy resin, and the modifying body is epoxy-terminated polysiloxane with epoxy equivalent weight of 400-900g / mol. The epoxy cement gum prepared by the preparation method has relatively high strength, toughness, impact resistanceand abrasion resistance, is good in comprehensive performance, and can be applied to hydroelectric and hydraulic engineering, bridge engineering, high-speed rail traffic engineering, constructional engineering and the like.

Description

technical field [0001] The invention relates to the field of epoxy resin mastic, in particular to a toughened anti-scouring epoxy resin mastic and a preparation method thereof. Background technique [0002] Epoxy cement is a new type of thin-layer repair material composed of epoxy resin, curing agent and hard filler, which is high-strength, impact-resistant, abrasion-resistant, and firmly bonded. It can be used for the repair of thin-layer defects such as air holes, small honeycombs, pockmarks, and sand lines on the concrete surface, as well as concrete anti-seepage, anti-carbonization protection, micro-crack sealing, and appearance beautification. It is also suitable for high-speed railway passenger train box beams and track slabs Surface defect repair and mild abrasion repair or anti-erosion protection treatment on the concrete surface of hydraulic structures after overflow. [0003] Epoxy resin is one of the most widely used thermosetting resin types in modern industry. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/02C09D183/06C09D163/00C09D7/62C09D7/61
CPCC09D163/00C09D7/62C09D7/61C09D7/70C08L2201/08C08L2205/025C08L2205/03C08L2205/06C08K2201/011C08K2003/265C08L83/08C08K13/06C08K3/26C08K7/00C08K3/042C08K7/24C08L63/00
Inventor 陆志华陈丽萍
Owner 杭州每步材料科技有限公司
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