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Polyether amine type water-based epoxy curing agent for epoxy resins and preparation method of curing agent

A polyetheramine type technology for epoxy resin, applied in the field of polyetheramine type water-based epoxy curing agent and preparation, epoxy resin curing agent, can solve the problems of difficult reaction control, complicated preparation process, easy gelation, etc. , to achieve the effect of clean and environmental protection, good technical effect and low viscosity in the construction process

Active Publication Date: 2019-02-22
江苏三木化工股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation process of this modification method is complicated, the reaction control is difficult, it is easy to gel, and it lacks universal applicability, and the final step of the process needs to be dispersed with a large amount of water to reduce the viscosity of the product. The water will be volatilized in the later use, which takes a long time time, making the system solidify slowly

Method used

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  • Polyether amine type water-based epoxy curing agent for epoxy resins and preparation method of curing agent
  • Polyether amine type water-based epoxy curing agent for epoxy resins and preparation method of curing agent
  • Polyether amine type water-based epoxy curing agent for epoxy resins and preparation method of curing agent

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 1, a kind of preparation method of the polyetheramine type waterborne epoxy curing agent that epoxy resin is used, comprises the following steps:

[0028] (1) Add 400 parts by weight of polyetheramine D-400 to 100 parts by weight of maleic anhydride, and keep warm at 80-85°C for 2 hours;

[0029] (2) Then continue to add 300 parts by weight of polyetheramine D-400 to the reaction bottle, and keep it warm at 95-100°C for 2 hours;

[0030] (3) Then the mixture was heated to 200° C. at a heating rate of 5° C. / min, and kept for 3 hours, and the generated water was distilled off during the reaction; cooled to obtain a polyetheramine-type water-based epoxy curing agent; the yield was 92%.

[0031] 2. Performance test

[0032] The above-mentioned polyetheramine-based water-based epoxy curing agent is used in conjunction with epoxy resin to test its performance. Mix 100g of epoxy resin 828 (produced by Jiangsu Miki) and 50g of the above-mentioned polyether amine water-based e...

Embodiment 2

[0035] 1, a kind of preparation method of the polyetheramine type waterborne epoxy curing agent that epoxy resin is used, comprises the following steps:

[0036] (1) Add 600 parts by weight of polyetheramine D-400 to 100 parts by weight of maleic anhydride, and keep warm at 85-95°C for 3 hours;

[0037] (2) Then continue to add 400 parts by weight of polyetheramine D-400 to the reaction bottle, and keep it warm at 80-90°C for 2 hours;

[0038] (3) Then the mixture was heated to 200° C. at a heating rate of 5° C. / min, and kept for 4 hours, and the generated water was distilled off during the reaction; cooled to obtain a polyetheramine-type water-based epoxy curing agent; the yield was 91%.

[0039] 2. Performance test

[0040] The above-mentioned polyetheramine-based water-based epoxy curing agent is used in conjunction with epoxy resin to test its performance. Mix 100g of epoxy resin 828 (produced by Jiangsu Miki) and 50g of the above-mentioned polyether amine water-based ep...

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Abstract

The invention discloses a polyether amine type water-based epoxy curing agent for epoxy resins and a preparation method of the curing agent. The water-based epoxy curing agent is prepared from polyether amine and maleic anhydride. The polyether amine is modified by anhydride by virtue of the optimum steps and conditions in a preferred scheme, and the polyether amine type water-based epoxy curing agent is prepared. The curing agent is high in solid content and low in viscosity. When the curing agent is applied to a water-based epoxy floor level, the construction process is clean and environment-friendly, no volatile organic compound is produced, various properties of the cured floor level can meet the market requirements, and excellent technical effects are achieved.

Description

technical field [0001] The invention relates to an epoxy resin curing agent, in particular to an environment-friendly polyetheramine-type water-based epoxy curing agent for epoxy resin and a preparation method thereof, belonging to the technical field of polymer materials. Background technique [0002] Epoxy flooring has the advantages of seamless, solid texture, good chemical resistance, anti-corrosion, dust-proof, convenient maintenance, and low maintenance costs. Traditional epoxy floor construction requires the use of a large amount of solvents for dilution. During the post-curing process, all these solvents evaporate into the atmosphere, causing serious damage to the atmospheric environment and human health. [0003] At present, water-based epoxy flooring is supported by national industrial policies for its characteristics of no volatile solvents and green environmental protection, and it is also an inevitable trend of technological upgrading of the epoxy flooring indus...

Claims

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Application Information

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IPC IPC(8): C08G65/331C08G59/50
CPCC08G59/5013C08G65/331
Inventor 王涛惠正权薛中群
Owner 江苏三木化工股份有限公司