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High-filling high toughness epoxy stone adhesive and preparation method thereof

A high-toughness, adhesive technology, applied in the direction of adhesives, epoxy resin glue, non-polymer adhesive additives, etc., can solve the problems of high cost and inability to meet the application of building materials, so as to reduce viscosity, improve wettability, avoid The effect of internal stress

Active Publication Date: 2018-06-22
WUHAN KEDA MARBLE PROTECTIVE MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its filling ratio only accounts for less than 50% of the resin, resulting in high cost, and the resin system uses polyetheramine and alicyclic amine, which need to be cured at medium and high temperatures, which cannot meet the application in the field of building materials

Method used

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  • High-filling high toughness epoxy stone adhesive and preparation method thereof
  • High-filling high toughness epoxy stone adhesive and preparation method thereof
  • High-filling high toughness epoxy stone adhesive and preparation method thereof

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preparation example Construction

[0037] The preparation method of the above-mentioned high-filling high-toughness epoxy stone adhesive comprises the following steps:

[0038] 1) Weigh 30 to 50 parts of epoxy resin, 1 to 5 parts of difunctional reactive diluent and 100 to 150 parts of composite filler in parts by weight;

[0039] 2) Stir the epoxy resin and the bifunctional active diluent evenly, then add the composite filler, stir evenly, and cool to obtain component A;

[0040] 3) Weighing 15-40 parts of self-catalyzed toughness curing agent composition and 50-200 parts of composite filler according to the ratio of parts by weight;

[0041] 4) Stir the self-catalyzed toughening agent composition evenly, then add it into the composite filler, stir evenly, and cool to obtain component B;

[0042] 5) Mix the two components A and B according to the above weight ratio to obtain a high-filling and high-toughness epoxy stone adhesive.

[0043] Theoretical basis of above-mentioned raw material and preparation meth...

Embodiment 1

[0072] Preparation of group A: Stir 30 parts of bisphenol A epoxy resin E44 and 1 part of polyethylene glycol diglycidyl ether evenly, and then add 100 parts of composite filler. First add 50 parts of lignin and stir for 20 minutes. After the lignin is evenly dispersed, add 50 parts of 400-mesh quartz powder, stir for another 10 minutes, cool to room temperature and discharge.

[0073] Preparation of Group B: Mix 3 parts of N-(6-aminohexyl)-N-methyl-1,6-hexanediamine and 12 parts of polyetheramine D230, and then add 50 parts of composite filler. First add 25 parts of lignin and stir for 20 minutes. After the lignin is evenly dispersed, add 25 parts of 400-mesh quartz powder and stir for another 10 minutes. Cool to room temperature and discharge.

[0074] Mix A and B components at a weight ratio of 1:1 to obtain highly filled and high toughness epoxy stone adhesive 1.

Embodiment 2

[0076] Preparation of group A: Stir 50 parts of bisphenol A epoxy resin E51 and 5 parts of diethylene glycol diglycidyl ether evenly, and then add 150 parts of composite filler. First add 7.5 parts of hydroxymethyl cellulose, stir for 20 minutes, after the hydroxymethyl cellulose is uniformly dispersed, then add 142.5 parts of 300 mesh quartz powder, stir for another 10 minutes, cool to room temperature and discharge.

[0077] Preparation of Group B: Stir evenly with 32 parts of N-(6-aminohexyl)-N-methyl-1,6-hexanediamine and 8 parts of polyetheramine T403 (functionality 3, molecular weight 400), and then add 200 Composite filler. First add 10 parts of hydroxymethylcellulose and stir for 20 minutes. After the hydroxymethylcellulose is evenly dispersed, add 190 parts of 300-mesh quartz powder, stir for 10 minutes, cool to room temperature and discharge.

[0078] Mix the two components A and B at a weight ratio of 1:1 to obtain a high-filling and high-toughness epoxy stone adhe...

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Abstract

The invention discloses a high-filling and high-toughness epoxy stone adhesive and a preparation method thereof. The adhesive is prepared from a component A and a component B, wherein the weight ratioof the component A to the component B is (1 to 3) to 1; the component A is prepared from the following components in parts by weight: 30 to 50 parts of epoxy resin, 1 to 5 parts of a bifunctional reactive diluent and 100 to 150 parts of composite filler; the component B is prepared from the following components in parts by weight: 15 to 40 parts of self-catalyzed toughness curing agent compound and 50 to 200 parts of the composite filler. Compared with the prior art, the high-filling and high-toughness epoxy stone adhesive disclosed by the invention has the characteristics of large filling ratio, high strength, good toughness, excellent thixotropy, stable storage and considerable economic benefits; the preparation method of the high-filling and high-toughness epoxy stone adhesive has theadvantages of low requirements on equipment, simple operation and suitability for industrial production.

Description

technical field [0001] The invention relates to the field of epoxy adhesives, in particular to a high-filling and high-toughness epoxy stone adhesive and a preparation method thereof. Background technique [0002] Epoxy resin adhesives are widely used in various fields, especially building materials, due to their high bonding strength, small curing shrinkage, strong chemical resistance, and good insulation performance. However, the cured epoxy resin has disadvantages such as brittleness, poor impact performance and easy cracking. These shortcomings are caused by insufficient toughness, especially in the case of high filling, it shows brittle fracture, which limits to a certain extent. Applications of epoxy resins. Although reducing the filling ratio can alleviate this phenomenon, it will undoubtedly bring huge pressure to the production enterprises in the field of low-priced and thin-profit building materials. [0003] "Patent CN102190858" provides a nano-silica toughening...

Claims

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Application Information

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IPC IPC(8): C09J163/00C09J197/00C09J101/28C09J11/04
CPCC08K2201/014C08L2205/025C08L2205/03C08L2205/035C09J11/04C09J163/00C09J197/005C08L63/00C08K3/36C08L1/284C08L1/286C08L97/005
Inventor 杜昆文杜昆武蔡珩张忠侠叶盛阳王云飞
Owner WUHAN KEDA MARBLE PROTECTIVE MATERIALS
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