Preparation method of full bio-based vitrimer

An all-biological and derivative technology, applied in the field of preparation of all-bio-based vitrimer, can solve the problems of difficult recycling and reprocessing, mechanical properties, poor solvent resistance, unstable structure, etc., and achieve easy implementation, good biocompatibility, Simple preparation method

Active Publication Date: 2019-11-08
INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Thermosetting resin has excellent mechanical properties, thermal stability and chemical resistance, but it is difficult to recycle and reprocess due to its permanent cross-linked ne

Method used

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  • Preparation method of full bio-based vitrimer
  • Preparation method of full bio-based vitrimer
  • Preparation method of full bio-based vitrimer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Dissolve 3 g of rosin resin acid derivative fumaric acid (FPA) in 12 g of dehydrated ethanol, then add 0.1 g of transesterification catalyst zinc acetylacetonate to the above-mentioned clear solution, and mix well at 50° C. to obtain a uniform Colorless solution, then add 5g epoxidized soybean oil (Shanghai Wenhua Chemical Pigment Co., Ltd., epoxy value ≥ 6) and mix; Add the above solution into an eggplant type bottle and remove the solvent ethanol by rotary evaporation; The final viscous liquid is poured into a tetrafluoroethylene mold, and the mold is placed in a vacuum drying oven. After decompression and vacuuming, nitrogen gas is introduced, cured at 120°C for 2 hours, and the temperature is raised to 140°C at 5°C / min. Then post-cure at 140°C for 5 hours to obtain a transparent yellow film material.

[0036] The glass transition temperature of the material is 65°C and the tensile strength is 16MPa. Scratch the obtained vitrimer material with a blade (the width of ...

Embodiment 2

[0038] 2.4g of rosin resin acid derivative fumaric acid (FPA) was dissolved in 10g of absolute ethanol, then 0.15g of transesterification catalyst zinc acetylacetonate was added to the above transparent clear solution, and mixed at 50°C to obtain Uniform colorless solution, then add 5g epoxidized soybean oil (Shanghai Aladdin Reagent Co., Ltd.) and mix well; add the above solution into an eggplant-shaped bottle and remove the solvent ethanol by rotary evaporation; the viscous liquid after rotary evaporation Pour it into a tetrafluoroethylene mold, and place the mold in a vacuum drying oven. After decompression and vacuuming, nitrogen gas is introduced, and it is cured at 110°C for 2 hours. After curing for 4 hours, a transparent yellow film material is obtained.

[0039]The glass transition temperature of the material is 56 °C, and the tensile strength is 14.6 MPa. Scratch the obtained vitrimer material with a blade (the width of the scratch is about 120 μm) and put it in an ...

Embodiment 3

[0041] 2.4g of rosin resin acid derivative maleopimaric acid (MPA) was dissolved in 9g of absolute ethanol, then 0.15g of transesterification catalyst zinc acetylacetonate was added to the above transparent clear solution, and mixed at 50°C to obtain Uniform colorless solution, then add 5g epoxidized soybean oil and mix evenly; add the above solution into an eggplant-shaped bottle and remove the solvent ethanol by rotary evaporation; pour the viscous liquid after rotary evaporation into a tetrafluoroethylene mold, And place the mold in a vacuum drying oven. After decompression and vacuuming, nitrogen gas is introduced, cured at 120°C for 2 hours, heated to 140°C at 5°C / min, and post-cured at 140°C for 6 hours to obtain a transparent Yellow film material.

[0042] The glass transition temperature of the material is 60° C., and the tensile strength is 13.2 MPa. Scratch the obtained vitrimer material with a blade (scratch width is about 135 μm) and put it in an oven at 170 ° C. ...

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Abstract

The invention discloses a preparation method of full bio-based vitrimer, which is prepared from a rosin resin acid derivative and epoxidized soybean oil under the action of a catalyst. The preparationmethod of full bio-based vitrimer provided by the invention prepares the full bio-based vitrimer material containing a hydrogenated phenanthrene ring structure, through use of the bio-based raw materials epoxidized soybean oil and rosin resin acid derivative, the problems of high toxicity of traditional bisphenol A vitrimer and poor mechanical properties and low glass transition temperature of soybean oil based vitrimer are effectively solved. At the same time, the obtained vitrimer is a completely biomass based material with no toxicity and good biocompatibility, and can undergo self-healing, reprocessing and shape memory. Also the preparation method is simple, has strong operability, and is easy to implement.

Description

technical field [0001] The invention relates to a preparation method of a full bio-based vitrimer, which belongs to the field of vitrimer preparation. Background technique [0002] Traditional polymer materials are divided into thermosetting resins and thermoplastic resins. Thermosetting resin has excellent mechanical properties, thermal stability and chemical resistance, but it is difficult to recycle and reprocess due to the permanent cross-linked network structure after curing; thermoplastic resin can be recycled after heating, but its mechanical properties , Solvent resistance is poor, and the structure is unstable at high temperature. Therefore, the preparation of a polymer material between thermosetting resin and thermoplastic resin, which has both good mechanical properties and thermal stability of thermosetting resin and reworkability of thermoplastic resin, has received extensive attention and research. Leibler et al. first proposed the concept of vitrimer in 2011...

Claims

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Application Information

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IPC IPC(8): C08G59/42
CPCC08G59/4215C08G2280/00
Inventor 刘鹤杨欣欣李兆双商士斌宋湛谦
Owner INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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