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Nano-modified epoxy resin and preparation method thereof

A technology of epoxy resin and nano-modification, which is applied in the direction of epoxy resin coating, coating, etc., can solve the problems of difficult polymerization of nano-materials and epoxy resin, and achieve the effect of superior performance

Inactive Publication Date: 2015-01-14
徐世前
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a nano-modified epoxy resin and a preparation method thereof, the purpose of which is to solve the problem of difficult polymerization of nano-materials and epoxy resin, and to prepare epoxy resin with high weather resistance

Method used

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  • Nano-modified epoxy resin and preparation method thereof
  • Nano-modified epoxy resin and preparation method thereof
  • Nano-modified epoxy resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: Nano TiO 2 Modified epoxy resin

[0021]

[0022] Mix 45.00g bisphenol A, 23.00g epichlorohydrin, 1.20 phosphotungstic acid, 0.80 mercaptoacetic acid, 15.50g mixed reactive diluent (diglycidyl ether and dioxypropylene ethyl ether mixed) and 1.00g mixed inert diluent Agent (mixed with toluene and acetone) was mixed under stirring to dissolve bisphenol A.

[0023] Add 0.85g of benzene dropwise to the mixed solution in the previous step, and control the temperature at 62°C. After the dropwise addition, raise the temperature to 90°C, and then sieve in 1.70g of nanomaterials to maintain the reaction. After the reaction is completed, recover epichlorohydrin; Add 0.85g of benzene dropwise to the reaction solution, and at the same time sieve in the remaining 0.80g of nanomaterials, keep warm to maintain the reaction; finally add the remaining 0.8g of benzene dropwise to dissolve the resin, stir and let stand to separate layers.

[0024] Put the resin liquid i...

Embodiment 2

[0025] Embodiment 2: Nano ZnO modified epoxy resin

[0026]

[0027] The production process steps are the same as in Example 1.

Embodiment 3

[0028] Embodiment 3: Nano-CaCO 3 Modified epoxy resin

[0029] The production process steps are the same as in Example 1.

[0030] Embodiment 1-3 gained product performance test parameter is as shown in 1:

[0031]

[0032] Table 1

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Abstract

The present invention discloses a nano-modified epoxy resin, comprising by weight: 20-45 parts of bisphenol-A, 10-23 parts of epoxy chloropropane, 1-2.5 parts of a nano-material, 0.7-1.2 parts of phosphotungstic acid, 0.1-0.8 parts of mercaptoacetic acid, 10-20.5 parts of a mixed active diluent, 1-7 parts of a mixed inert diluent, and 2-5 parts of benzene; and also discloses a preparation method of the nano-modified epoxy resin, which uses a two-step method and is added with the nano-material to prepare the nano-modified epoxy resin. The problem of difficult polymerization between nanomaterial and epoxy resin is overcome by using the method to prepare the nano-modified epoxy resin. The product is superior in performance, especially the weather resistance is increased by 40% than traditional products, artificial aging resistance is up to 1000 hours, and the product fully meets the requirements for outdoor use.

Description

technical field [0001] The invention relates to an epoxy resin and a preparation method thereof, in particular to a nano-modified epoxy resin and a preparation method thereof. Background technique [0002] Epoxy resin has the characteristics of strong adhesion, high temperature resistance, corrosion resistance and excellent electrical insulation. It is widely used in the surface coating of automobiles, ships, electric power and electronic devices. In recent years, the consumption has reached 30 per year. The speed of % is growing, and the market potential is huge. However, epoxy resins generally have disadvantages such as poor scratch resistance and poor weather resistance. [0003] Because of their unique physical and chemical properties, nanomaterials can greatly improve the surface toughness, hardness and weather resistance of epoxy resin products. However, due to the easy aggregation of nanomaterials and the high viscosity of epoxy resin itself, the polymerization of n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G59/06C08G59/20C08K3/22C08K3/26C08K3/34C09D163/02C09D7/12
Inventor 徐世前李超张玉琴刘波吴秀平徐胜
Owner 徐世前
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