A kind of high bio-based content epoxy resin composition and its curing method and application

An epoxy resin and bio-based technology, applied in the direction of epoxy resin coatings, coatings, etc., can solve the problems of low crosslinking density of cured products, poor mechanical properties of cured products, complicated process, etc., to reduce human damage and easy to implement , the effect of broad application prospects

Active Publication Date: 2017-11-07
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For the above applications, either the use of petroleum-based resources cannot be avoided, causing damage to human health and environmental pollution; or due to the low crosslinking density of the cured product, the mechanical properties of the cured product are poor; and the preparation process of the cured product contains grafting Operation steps under different conditions such as active functional groups, active monomer cross-linking and curing, etc., the process is more complicated and the method is more cumbersome

Method used

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  • A kind of high bio-based content epoxy resin composition and its curing method and application
  • A kind of high bio-based content epoxy resin composition and its curing method and application
  • A kind of high bio-based content epoxy resin composition and its curing method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0040] 100g epoxidized soybean oil (Aladdin reagent), itaconic acid 35g (Aladdin reagent), malic acid 80g (Aladdin reagent), tetrabutylammonium bromide 1g (Sinopharm reagent), tert-butyl peroxybenzoate (Aladdin's Reagent) 10g mixed evenly, and applied on the cleaned tinplate, irradiated under 1000W high-temperature mercury lamp for 3 minutes, and cured to form a film. The glass transition temperature of this film is 85 ℃ (after the sample is solidified, grind into powder, test with the MET type differential scanning calorimeter that Mettler-Toledo company produces, N 2 atmosphere, the heating rate is 20°C / min, the same below).

Embodiment 2

[0042] With 100g epoxy castor oil (Aladdin's reagent), maleic acid 80g (Aladdin's reagent), citric acid 75g (Aladdin's reagent), triphenylphosphine 4g (National medicine reagent), tert-butyl peroxybenzoate (Aladdin's reagent) Latin reagent) 5g, mixed evenly, and applied on the cleaned tinplate, and irradiated for 3 minutes under a 1000W high-temperature mercury lamp to cure and form a film. The glass transition temperature of the film was 90°C.

Embodiment 3

[0044] 100g epoxidized soybean oil (Aladdin's reagent), itaconic acid 60g (Aladdin's reagent), triphenylphosphine 2g (National medicine reagent), tert-butyl peroxybenzoate (Aladdin's reagent) 8g, triethanolamine (National medicine Reagent) 5g, mixed evenly, and applied on the cleaned tinplate, irradiated under 1000W high-temperature mercury lamp for 3 minutes, and cured to form a film. The glass transition temperature of the film was 80°C.

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Abstract

The invention discloses an epoxy resin composition with high bio-based content, which comprises: 100 parts of epoxy vegetable oil, 1-100 parts of unsaturated bio-based dicarboxylic acid, and 1-10 parts of curing accelerator in terms of mass parts of raw materials part; 1-10 parts of free radical initiator; curing accelerator 1 is tetrabutylammonium bromide, triphenylphosphine, 2-methylimidazole, 2,4,6-tris(dimethylaminomethyl)phenol Or boron trifluoride, the free radical initiator is a peroxide or azo curing agent. The invention also discloses its curing method and application. The epoxy resin composition with high bio-based content of the present invention greatly improves the mechanical properties of the material. The main raw materials are all from bio-based renewable resources, and they are all green and non-toxic substances. They have the potential to alleviate the oil crisis and reduce carbon dioxide emissions. A certain positive effect, while reducing the damage to the human body, also reduces the pollution to the environment, which is beneficial to industrial applications, especially the application in coatings.

Description

technical field [0001] The invention relates to the field of bio-based thermosetting resins, in particular to an epoxy resin composition with high bio-based content. Background technique [0002] Thermosetting polymers have the characteristics of being insoluble and non-melting after heating and curing. Among them, thermosetting epoxy resins containing epoxy functional groups are widely used in automobiles, construction, electronics, aviation and other fields due to their excellent mechanical properties, high temperature resistance, corrosion resistance, adhesion and electrical insulation. [0003] However, the current epoxy resins are mainly synthesized from petroleum resources. Such resources are non-renewable resources, and long-term development is difficult to guarantee their sustainable development prospects. Not only that, in the process of preparing epoxy resin from traditional petroleum-based materials, the raw materials from matrix resin to curing agent are usually...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F283/10C08F222/02C08G59/50C08G59/68C09D151/08C09D163/00
Inventor 马松琪李鹏江艳华康文涛刘小青朱锦
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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