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Preparation method of water-based orange peel epoxy curing agent and flat coating agent matched with waterborne orange peel epoxy curing agent

An epoxy curing agent and orange pattern technology, applied in the direction of epoxy resin coatings, coatings, etc., can solve the problems of coating water resistance, hardness reduction, poor stability, etc., to improve flexibility, water resistance, and good water resistance , high gloss effect

Active Publication Date: 2021-02-09
广州高驰新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The former has poor stability, and its chemical resistance is not as good as the latter. The latter mainly introduces hydrophilic groups into the epoxy resin structure, making the system very hydrophilic, and mixing with low molecular weight epoxy resins Stir evenly, emulsify well and undergo cross-linking and curing reactions, but the introduction of hydrophilic segments in the system will lead to a decrease in water resistance and hardness of the coating

Method used

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  • Preparation method of water-based orange peel epoxy curing agent and flat coating agent matched with waterborne orange peel epoxy curing agent
  • Preparation method of water-based orange peel epoxy curing agent and flat coating agent matched with waterborne orange peel epoxy curing agent

Examples

Experimental program
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Effect test

Embodiment 1

[0023] Embodiment 1: a kind of preparation method of water-based orange pattern epoxy curing agent.

[0024] refer to figure 1 Shown, a kind of preparation method of water-based orange pattern epoxy curing agent, it is prepared by the raw material of following mass parts: the diethylenetriamine of 20 parts, the neopentyl glycol diglycidyl ether of 5 parts, 35 parts IPDA, 127 epoxy resins of 15 parts, 20 parts of propylene glycol methyl ether, 9 parts of phenyl glycidyl ether, 2.5 parts of fumed silica, 27.5 parts of deionized water; specifically include the following steps:

[0025] S1. Add 20 parts of diethylenetriamine and 35 parts of IPDA into the four-necked flask, start stirring, then raise the temperature to 60 degrees Celsius, and stir for 0.5 hours;

[0026] S2. Stir and mix 5 parts of neopentyl glycol diglycidyl ether and 5 parts of propylene glycol methyl ether in advance to form a 50wt% solution, slowly and uniformly drop the prepared propylene glycol methyl ether ...

Embodiment 2

[0033] A preparation method of a water-based orange pattern epoxy curing agent, prepared from the following raw materials in parts by mass: 15 parts of diethylenetriamine, 4 parts of neopentyl glycol diglycidyl ether, 30 parts of HMDA, 20 parts 128 epoxy resins, 24 parts of propylene glycol methyl ether, 8 parts of phenyl glycidyl ether, 5 parts of fumed silica, 30 parts of deionized water; specifically include the following steps:

[0034] S1. Add 15 parts of triethylenetetramine and 30 parts of HMDA into the four-necked flask, start stirring, then raise the temperature to 60 degrees Celsius, and stir for 0.5 hours;

[0035] S2. Stir and mix 4 parts of neopentyl glycol diglycidyl ether and 4 parts of propylene glycol methyl ether in advance to form a 50wt% solution, slowly and uniformly drop the prepared propylene glycol methyl ether solution of neopentyl glycol diglycidyl ether , after 2 hours of dripping, continue to keep warm for 4 hours;

[0036] S3, 20 parts of 128 epox...

Embodiment 3

[0042] A preparation method of a water-based orange pattern epoxy curing agent, prepared from the following raw materials in parts by mass: 18 parts of tetraethylenepentamine, 4 parts of neopentyl glycol diglycidyl ether, 28 parts of MXDA, 17 parts 128 epoxy resins, 21 parts of propylene glycol methyl ether, 8 parts of phenyl glycidyl ether, 4.5 parts of fumed silica, 32.5 parts of deionized water; specifically include the following steps:

[0043] S1. Add 18 parts of tetraethylenepentamine and 28 parts of MXDA into the four-necked flask, start stirring, then raise the temperature to 60 degrees Celsius, and stir for 0.5 hours;

[0044] S2. Stir and mix 4 parts of neopentyl glycol diglycidyl ether and 4 parts of propylene glycol methyl ether in advance to form a 50wt% solution, slowly and uniformly drop the prepared propylene glycol methyl ether solution of neopentyl glycol diglycidyl ether , after 2 hours of dripping, continue to keep warm for 4 hours;

[0045] S3, 17 parts o...

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Abstract

The invention provides a preparation method of a water-based orange peel epoxy curing agent. The water-based orange peel epoxy curing agent is prepared from the following raw materials in parts by mass: 10-20 parts of vinylamine, 2-6 parts of neopentyl glycol diglycidyl ether, 25-40 alicyclic amine, 15-25 parts of epoxy resin, 15-25 parts of propylene glycol monomethyl ether, 8-10 parts of phenylglycidyl ether, 2-6 parts of fumed silica and 20-50 parts of deionized water. The invention further provides an epoxy resin flat coating agent which is matched with the epoxy curing agent for use according to the mass ratio of 1: 5 and is prepared from the following raw materials in parts by mass: 300-400 parts of epoxy resin, 25-32 parts of an active diluent, 1-5 parts of a dispersing agent, 1-3parts of an antifoaming agent, 305-320 parts of ground calcium carbonate, 160-200 parts of silica powder, 15-20 parts of wax powder, 80-120 parts of talcum powder, 1-5 parts of leveling agent and 2-8parts of color paste. The water-based orange peel epoxy curing agent prepared by the invention is clear and transparent in appearance, uniform in coating orange peel texture, high in hardness, good inadhesive force, high in acid resistance, alcohol resistance and water resistance, strong in flexibility, high in impact resistance and excellent in comprehensive performance.

Description

technical field [0001] The invention relates to the technical field of epoxy curing agent production, in particular to a preparation method of a water-based orange grain epoxy curing agent and a flat coating agent used in conjunction with it. Background technique [0002] Epoxy resin itself is a linear thermoplastic polymer, and uncured epoxy resin does not have good mechanical properties, chemical resistance and heat resistance at all. However, good performance can be obtained by reacting a linear epoxy resin with a suitable curing agent to form a three-dimensionally cross-linked thermoset structure, a process commonly referred to as curing or gelling of epoxy resins, so the curing agent is Epoxy resin is the key to produce practical application value. [0003] Curing agent is an indispensable component of all thermosetting resins. There are many types of curing agents suitable for epoxy resins. At present, there are more than 300 kinds of curing agents in total. Each epox...

Claims

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Application Information

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IPC IPC(8): C08G59/50C08G59/40C09D5/28C09D163/00C09D7/61C09D7/65
CPCC08G59/4028C08G59/5006C08K2003/265C09D5/28C09D163/00C09D7/61C09D7/65C08L91/06C08K3/34C08K3/36C08K3/26
Inventor 章健王振兴邓淑芬黄登江
Owner 广州高驰新材料科技有限公司
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