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Biolipid-based epoxy resin and preparation method and application thereof

A technology based on epoxy resin and bio-oil, applied in epoxy resin coatings, coatings, medical science and other directions, can solve problems such as not conforming to the development trend, and achieve the effect of reducing consumption

Inactive Publication Date: 2018-01-05
SOUTH CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, Sibi et al. developed fully renewable epoxy thermosets from epoxidized sucrose soybean fat cured with end-capped bio-based dicarboxylic acids in the presence of DBU as a catalyst; Matharu et al. Acid crosslinkers develop a new fully renewable thermoset resin; Robertson et al. study mixtures of epoxidized soybean oil and commercial BPA-based components with 4,4'-diaminodiphenylmethane as curing agent The hydrolytic degradation and thermal properties of epoxy resins in the medium; but all the curing agents, ring-opening agents or catalysts used in the preparation of these vegetable oil epoxy resins come from fossil resources, which do not meet the current development trend of environmental protection and energy saving
[0004] At present, there are many patents related to epoxy resins, but few patents related to bio-oil-based epoxy resins. Although there are reports on patents related to bio-oil-based epoxy resins, for example, the Chinese invention patent with publication number CN104448365A has invented a kind of environmental The method for toughening epoxy resin / cellulose composite film with oxygen vegetable oil, the Chinese invention patent with the publication number CN104693418A has invented a kind of epoxy resin cured film with high oil content and its preparation method and application, the Chinese invention with the publication number CN104892858A The patent invented a high bio-based content epoxy resin composition and its curing method and application. Although the above invention patents all use vegetable oil as raw material, they do not use natural dibasic acid as curing agent as raw material, and all of them have added Auxiliary curing accelerator or organic solvent other than curing agent

Method used

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  • Biolipid-based epoxy resin and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0034](1) Add metered malonic acid and deionized water (molar ratio-COOH:H 2 O=1:0.9), stir and heat up, add the measured epoxidized soybean oil (molar ratio -EPO:-COOH=0.5:1) for the first time, stir and heat up to 120°C, react for 40min; then add the measured Good epoxidized soybean oil (molar ratio -EPO:-COOH=0.5:1), reaction temperature 120°C, reaction 50min; then pour it into a 7.5cm*7.5cm silicone mold, the first step of the reaction is over, and the intermediate product is obtained .

[0035] (2) Put the intermediate product obtained in step (1) into a vacuum oven at 150° C., dry it in vacuum for 15 minutes, and then dry it in an oven at 120° C. for 8 hours to obtain an epoxy soybean oil-based epoxy resin.

[0036] For the infrared spectrum test, the sample to be tested (epoxidized soybean oil) was coated on a KBr sheet, and then placed on a VERTEX 70 infrared spectrometer from Bruker, Germany for testing. The scanning wavenumber range is 4000~400cm -1 , with a resol...

Embodiment 2

[0040] (1) Add metered malonic acid and deionized water (molar ratio-COOH:H 2 O=1:7), stir and heat up, add the measured epoxidized soybean oil (molar ratio -EPO:-COOH=0.5:1) for the first time, stir and heat up to 160°C, react for 90min; then add again Measured epoxidized soybean oil (molar ratio -EPO:-COOH = 0.2:1), reaction temperature 160°C, reacted for 90 minutes; then poured into a 7.5cm*7.5cm silica gel mold, the first step of the reaction was completed, and the intermediate product.

[0041] (2) Put the intermediate product obtained in step (1) into a vacuum oven at 180° C., and vacuum bake for 24 hours to obtain epoxy soybean oil-based epoxy resin.

[0042] With the FTIR spectrogram of the synthetic process of the novel epoxy resin of VERTEX 70 type infrared spectrometer of German Bruker company, the obtained result characteristic peak is identical with embodiment 1.

Embodiment 3

[0044] (1) Add metered malonic acid and deionized water (molar ratio-COOH:H 2 O=1:1), stir and heat up, add the measured epoxidized soybean oil (molar ratio -EPO:-COOH=0.5:1) for the first time, stir and heat up to 120°C, react for 40min; then add the measured Good epoxidized soybean oil (molar ratio -EPO:-COOH=0.5:1), reaction temperature 120°C, reaction for 50 minutes, and then poured into a 7.5cm*7.5cm silica gel mold, the first step of the reaction is over, and the intermediate product is obtained .

[0045] (2) Put the intermediate product obtained in step (1) into a vacuum oven at 150° C., dry it in vacuum for 15 minutes, and then dry it in an oven at 120° C. for 8 hours to obtain an epoxy soybean oil-based epoxy resin.

[0046] With the FTIR spectrogram of the synthetic process of the novel epoxy resin of VERTEX 70 type infrared spectrometer of German Bruker company, the obtained result characteristic peak is identical with embodiment 1.

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Abstract

The invention discloses biolipid-based epoxy resin and a preparation method and application thereof. The epoxy resin is obtained by crosslinking and curing of natural dibasic acid (used as a curing agent) and epoxy bio-oil without external catalyst effect (or addition of a catalyst). By applying epoxy bio-oil to an epoxy resin material, the invention has positive reference value for widening application of a natural oil product and raising added value thereof and also plays a positive role in the environment problem by reducing or replacing petroleum non-renewable resources. By introduction ofnatural dibasic acid, some performance is reduced but some performance is greatly improved, and decomposition products of the biolipid-based epoxy resin are completely nontoxic. Thus, the epoxy resinis environmental, nontoxic and degradable, has absolute pollution-free green environmental protection property, has good mechanical property and biocompatibility, and is expected to be widely appliedin fields of solventless coatings, biomaterials, polymeric membranes, etc.

Description

technical field [0001] The invention belongs to the field of macromolecular materials, and in particular relates to a biological oil-based epoxy resin and its preparation method and application. Background technique [0002] Epoxy resin (EpoxyResin) refers to the general term for three-dimensional network organic polymer compounds containing two or more epoxy groups in the molecular structure and formed under the action of an appropriate curing agent. It is an important class of thermosetting resins. Because of its good insulation, thermal stability, adhesion and mechanical properties, diverse molding processes, and high cost performance, it is widely used in aviation, aerospace, electronics, electrical and other fields. Today, about 90% of epoxy resins produced worldwide are produced by the reaction of bisphenol A and epichlorohydrin to form bisphenol A diglycidyl ether (DGEBA), however, bisphenol A is an environmental interfering substance, which has The characteristics o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G59/42C08G59/20C09D163/00A61L15/62A61L15/26A61L15/42A61L17/00
Inventor 张超群柳凌霄
Owner SOUTH CHINA AGRI UNIV
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