Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for preparing cashew shell oil water-based epoxy resin curing agent

A technology of water-based epoxy resin and cashew nut shell oil, which is applied in the chemical industry, can solve the problems that the performance of epoxy resin will pollute the environment, and achieve the effect of improving viscosity, stability and air permeability

Inactive Publication Date: 2010-03-24
上海美东生物材料股份有限公司
View PDF0 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a kind of preparation method of cashew nut shell oil water-based epoxy resin curing agent, the preparation method of described this cashew nut shell oil water-based epoxy resin curing agent will solve the problem of using emulsifier to solve environmental problems in the prior art. The technical problem that the performance of oxygen resin will pollute the environment

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0008] First, triethylenetetramine is capped with a single epoxy compound, so that the primary amine hydrogen becomes a secondary amine hydrogen, and then bisphenol A type epoxy resin is added to triethylenetetramine, and the above-mentioned synthetic Put it into a reaction vessel with a condensation and stirring device, slowly add an appropriate amount of monoepoxide with a funnel and observe the temperature of the system, keep it at a certain reaction temperature, react for 2 hours, take an appropriate amount of the above product and add it to a condensation and stirring device In the reaction vessel, when heated to about 40°C, slowly add an appropriate amount of epoxy resin ether solution of a certain concentration with a funnel, control the reaction temperature at a certain temperature, and react for 1 hour. After the end, keep the temperature of the reactant and add an appropriate amount of acetic acid. React for another 1 hour, and then add an appropriate amount of water ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a method for preparing cashew shell oil water-based epoxy resin curing agent, comprising: first, carrying out end capping on triethylene tetramine by using monoepoxy compound,and leading primary amine hydrogen to be transformed into secondary amine hydrogen; using bisphenol A type ethoxyline resin to have addition reaction together with the triethylene tetramine; using acetic acid for salifying, appropriately improving the hydrophilicity, and leading the modified polyamine curing agent to have good hydrophilic-lipophilic balance; and then, adding cardanol for proportioning, and obtaining the curing agent. The method solves the technical problem of environmental pollution caused by adding emulsifying agent into the ethoxyline resin in the prior art. The method canlead the ethoxyline resin with comparatively low molecular weight to be well emulsified to obtain stable emulsion, so that the aim of directly emulsifying the ethoxyline resin without additionally adding the emulsifying agent can be achieved, and the paint with low environmental pollution can be prepared.

Description

Technical field: [0001] The invention relates to the field of chemical industry, in particular to a method for preparing a polymer compound, in particular to a method for preparing a cashew nut shell oil water-based epoxy resin curing agent. Background technique: [0002] In the prior art, when epoxy resin is used, it is necessary to add an emulsifier to modify the epoxy resin to improve the performance of the epoxy resin, but adding too much emulsifier will pollute the environment. Invention content: [0003] The object of the present invention is to provide a kind of preparation method of cashew nut shell oil water-based epoxy resin curing agent, the preparation method of described this cashew nut shell oil water-based epoxy resin curing agent will solve the problem of using emulsifier to solve environmental problems in the prior art. The performance of oxygen resin will pollute the technical problem of the environment. [0004] The preparation method of a kind of cashe...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08G59/56C08G59/62
Inventor 黎明
Owner 上海美东生物材料股份有限公司