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Preparation of thermosetting polymer high in biological base content

A thermosetting and polymer technology, applied in the field of epoxy resin curing product preparation, can solve the problems of glass transition temperature, mechanical strength, and large flexibility

Inactive Publication Date: 2016-08-10
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the greater flexibility of the glycerin fatty acid ester molecule, the main component of the vegetable oil-based epoxy resin, the glass transition temperature and mechanical strength cannot be obtained after curing. Generally, it is necessary to introduce a large amount of petroleum-based rigid compounds or fillers. its enhanced modification

Method used

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  • Preparation of thermosetting polymer high in biological base content
  • Preparation of thermosetting polymer high in biological base content
  • Preparation of thermosetting polymer high in biological base content

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] A. 0.5 g catalyst is dissolved in 50 g epoxy soybean oil, and the epoxy value of epoxy soybean oil used is 6.0, stir;

[0013] B. 10.1191 g epoxidized soybean oil / catalyst mixture and 7.0153 g maleic abietic anhydride were dissolved in an appropriate amount of acetone, and stirred;

[0014] C. Vacuumize the mixture while stirring in an oil bath at 140 °C to remove acetone for 3 h;

[0015] D. The viscous mixture was poured into a mold and placed in an oven, kept at 160 °C for 4 h, then raised to 180 °C for 2 h to obtain a cured product.

Embodiment 2

[0017] A. 10.1365 g epoxidized soybean oil / catalyst mixture and 5.0175 g maleic abietic anhydride were dissolved in an appropriate amount of acetone, and stirred;

[0018] B. Vacuumize the mixture while stirring in an oil bath at 140 °C to remove acetone for 3 h;

[0019] C. The viscous mixture was poured into a mold and placed in an oven, kept at 160 °C for 4 h, then raised to 180 °C for 2 h to obtain a cured product.

Embodiment 3

[0021] A. Dissolve 0.5 g catalyst in 50 g epoxy linseed oil, the epoxy value of used epoxy linseed oil is 9.1, stir well;

[0022] B. 10.1088 g of epoxy linseed oil / catalyst mixture and 7.5870 g of maleic abietic anhydride are dissolved in an appropriate amount of acetone and stirred evenly;

[0023] C. Vacuumize the mixture while stirring in an oil bath at 140 °C to remove acetone for 3 h;

[0024] D. The viscous mixture was poured into a mold and placed in an oven, kept at 160 °C for 4 h, then raised to 180 °C for 2 h to obtain a cured product.

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Abstract

The invention relates to a preparation method of a thermosetting polymer high in biological base content, wherein the thermosetting polymer is produced from epoxidized vegetable oil and maleated rosin anhydride through ring opening polymerization. The method comprises dissolving epoxidized vegetable oil and maleated rosin anhydride in acetone, adding a catalyst, performing uniform stirring, removing acetone in a vacuum-pumping manner, and putting the obtained product in a die in an oven for a curing reaction. The obtained thermosetting polymer has the biological base content more than 90%, and is preferably good in thermostability, low in water absorption, and excellent in acid and alkali resistance. Besides the excellent performance above, the obtained thermosetting polymer is produced from two reactants deriving from raw biological base materials, and thus is low in cost and is green and eco-friendly.

Description

technical field [0001] The invention relates to the preparation of a thermosetting material with high bio-based content, and belongs to the field of preparation of cured epoxy resin products. Background technique [0002] Thermosetting polymers are a type of plastic whose raw material is a liquid solution and undergoes an irreversible curing process to become a solid material. Once the reaction is complete, the final product is non-deformable. They are mainly used in heat insulation, wear resistance, insulation, high voltage resistance, etc. in harsh environments. Epoxy resin is one of the most important ones. It is usually low molecular weight and contains at least two epoxy groups. The epoxy groups can undergo homopolymerization or react with a series of curing agents, such as amines, acids , phenols, alcohols, and thiols, etc. Epoxy resin has the characteristics of high strength, good adhesion, strong chemical resistance, and superior performance at high temperature, so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G59/42
CPCC08G59/4215
Inventor 奚桢浩赵玲陈雅华
Owner EAST CHINA UNIV OF SCI & TECH