A kind of bio-based furan epoxy resin polymer and its preparation method and application

A technology of epoxy resin and polymer, which is applied in the direction of epoxy resin coatings and coatings, can solve the problems of low biological safety of products, low degree of greening of raw materials, high energy consumption in the polymerization process, etc., and achieve good biological safety, The curing method is simple and the energy consumption ratio is reduced

Active Publication Date: 2021-09-28
NANJING TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a bio-based furan epoxy resin polymer to solve the problems of low greening degree of raw materials, high energy consumption in the polymerization process, long time and low biological safety of products in the prior art.

Method used

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  • A kind of bio-based furan epoxy resin polymer and its preparation method and application
  • A kind of bio-based furan epoxy resin polymer and its preparation method and application
  • A kind of bio-based furan epoxy resin polymer and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Weigh 13g of furan epoxy resin IV in the reaction bottle, stir to remove the air, and then add 2.8g of curing agent ethylene glycol polyether diamine I at 10°C under nitrogen atmosphere, then stir to remove the air, and quickly Stir for 30 minutes to ensure that the material is evenly mixed. Remove the nitrogen atmosphere, remove the air bubbles in the mixture under vacuum and depressurize, and then let it stand still; pour the material on the PTFE template, move it into a nitrogen curing box at 70°C, and cure it for 3 hours, and then cool it naturally under the nitrogen atmosphere to obtain a colorless and transparent ring. Oxygen resin polymer. The actual decomposition temperature of the obtained material is 310°C, the maximum decomposition temperature is 350°C, and the obtained material has good heat resistance. Judging by the infrared data, the infrared peaks of propylene oxide in the original epoxy substrate (3298 and 3375cm -1 Isointensity stretching vibration) ...

Embodiment 2

[0052]Weigh 13g of furan epoxy resin IV in the reaction bottle, stir to remove the air, and then add 4g of ethylene glycol polyether diamine II under nitrogen atmosphere at 20°C, then further stir to remove the air, and at the same time stir rapidly for 30min to confirm Make the material mix well. Remove the nitrogen atmosphere, remove the air bubbles in the mixture under vacuum and decompression, and then let it stand still; pour the material evenly on the PTFE mold plate, move it into a nitrogen curing box at 80°C, and cure it for 2 hours, and then cool it naturally under the nitrogen atmosphere to obtain light blue and transparent epoxy resin polymers. The actual decomposition temperature of the obtained material is 316°C, the maximum decomposition temperature is 358°C, and the obtained material has good heat resistance. Judging by the infrared data, the infrared peaks of propylene oxide in the original epoxy substrate (3298 and 3375cm-1 equal intensity stretching vibratio...

Embodiment 3

[0055] Weigh 13g of furan epoxy resin IV in the reaction bottle, then stir to remove the air, and then add 5.6g of ethylene glycol polyether diamine III at 20°C under nitrogen atmosphere, then further stir to remove the air, and stir rapidly for 30min at the same time Make sure the material is mixed evenly. Remove the nitrogen atmosphere, remove the air bubbles in the mixture under vacuum and decompression, and then let it stand still; pour the material evenly on the PTFE mold plate, move it into a nitrogen curing box at 60°C, and cure it for 4 hours, and then cool it naturally under the nitrogen atmosphere to obtain a yellowish transparent epoxy resin polymers. The actual decomposition temperature of the obtained material is 326°C, the maximum decomposition temperature is 338°C, and the obtained material has good temperature resistance. Judging by the infrared data, the infrared peaks of propylene oxide in the original epoxy substrate (3298 and 3375cm-1 equal intensity stret...

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Abstract

The invention discloses a bio-based furan epoxy resin polymer and its preparation method and application. The structure of the bio-based furan epoxy resin polymer is shown in formula I. The preparation method comprises uniformly mixing furan-based epoxy resin monomers and aliphatic polyether diamine, and then heating and curing after injection molding to obtain bio-based furan-based epoxy resin polymers. Compared with the prior art, the present invention uses the body direct curing method, the curing temperature is mild, and the operation process is simplified. More importantly, the present invention uses a new type of bio-based furan epoxy resin, which has a high degree of greening of raw materials and a wide range of sources. The product has high added value and high biological safety. Compared with petroleum-based epoxy resin, the advantages are more prominent.

Description

technical field [0001] The invention relates to an epoxy resin polymer and its preparation method and application, in particular to a bio-based furan epoxy resin polymer and its preparation method and application. Background technique [0002] Thermosetting resins are widely used in various fields such as aerospace, construction and transportation, and electronic appliances because of their excellent mechanical properties, thermal properties, and corrosion resistance. In 2016, the total sales volume of the thermosetting resin market was about 14 billion US dollars, and epoxy resin accounted for about 70% of the thermosetting resin market, of which bisphenol A epoxy resin (DGEBA) accounted for about 90%. Containing aromatic rings makes it poor in aging resistance and UV resistance. In addition, in view of the fact that it has a unit similar to estrogen that reduces fertility and is closely related to increasing the risk of disease and cancer, it has been banned by the US Fed...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G59/26C08G59/50C09D163/00C08L63/00
CPCC08G59/26C08G59/504C08L63/00C09D163/00
Inventor 郭凯孟晶晶张杰程鹏飞曾禹舜欧阳平凯
Owner NANJING TECH UNIV
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