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A kind of epoxy soybean oil rosin-cellulose-based polymer blend film and its preparation method and application

A cellulose-based, epoxy soybean technology, applied in chemical instruments and methods, luminescent materials, etc., to achieve the effect of high strength and large EC molecular weight

Active Publication Date: 2021-09-03
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

[0005] Technical problem to be solved: In order to solve the problem of deep processing and utilization of rosin, ethyl cellulose and rosin-based cellulose polymer, the present invention proposes an epoxy soybean oil rosin-cellulose-based polymer blend film and its preparation method And application, it can be used for deep processing of rosin and cellulose in fluorescent light-emitting materials and UV-absorbing materials

Method used

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  • A kind of epoxy soybean oil rosin-cellulose-based polymer blend film and its preparation method and application
  • A kind of epoxy soybean oil rosin-cellulose-based polymer blend film and its preparation method and application
  • A kind of epoxy soybean oil rosin-cellulose-based polymer blend film and its preparation method and application

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Experimental program
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Effect test

Embodiment 1

[0023] In the first step, add maleopimaric anhydride (MPA) and oxalyl chloride in a molar ratio of 1:1.3 into a reactor equipped with 40-80 mL (the amount added is for the purpose of completely dissolving the solid reactant) tetrahydrofuran (THF) as a solvent , carry out acid chlorination at a temperature of 50° C., and use a rotary evaporator to remove excess oxalyl chloride to obtain MPACl.

[0024] In the second step, MPACl was dissolved in THF according to 1g / 10mL, and was dropped into a solution dissolved with 12.3g EC (0.05mol), 6.5g DMAP (about 105% of EC) and THF (the EC added in the solution The ratio of the mass of THF to the volume of THF is 0.5 / mL), and the temperature is slowly raised to 40° C. for 5 hours. After the reaction, cool to room temperature, centrifuge the reaction mixture twice, pour the supernatant into excess distilled water (the amount of distilled water added is advisable to precipitate a large amount of product), and stir with a glass rod until co...

Embodiment 2

[0027] In the first step, add maleopimaric anhydride (MPA) and oxalyl chloride in a molar ratio of 1:1.3 into a reactor equipped with 40-80 mL (the amount added is for the purpose of completely dissolving the solid reactant) tetrahydrofuran (THF) as a solvent , carry out acid chlorination at a temperature of 50° C., and use a rotary evaporator to remove excess oxalyl chloride to obtain MPACl.

[0028] In the second step, MPACl was dissolved in THF according to 1g / 10mL, and was dropped into a solution dissolved with 12.3g EC (0.05mol), 6.5g DMAP (about 105% of EC) and THF (the EC added in the solution The ratio of the mass of THF to the volume of THF is 0.5 / mL), and the temperature is slowly raised to 40° C. for 5 hours. After the reaction, cool to room temperature, centrifuge the reaction mixture twice, pour the supernatant into excess distilled water (the amount of distilled water added is advisable to precipitate a large amount of product), and stir with a glass rod until co...

Embodiment 3

[0031]In the first step, add maleopimaric anhydride (MPA) and oxalyl chloride in a molar ratio of 1:1.3 into a reactor equipped with 40-80 mL (the amount added is for the purpose of completely dissolving the solid reactant) tetrahydrofuran (THF) as a solvent , carry out acid chlorination at a temperature of 50° C., and use a rotary evaporator to remove excess oxalyl chloride to obtain MPACl.

[0032] In the second step, MPACl was dissolved in THF according to 1g / 10mL, and was dropped into a solution dissolved with 12.3g EC (0.05mol), 6.5g DMAP (about 105% of EC) and THF (the EC added in the solution The ratio of the mass of THF to the volume of THF is 0.5 / mL), and the temperature is slowly raised to 40° C. for 5 hours. After the reaction, cool to room temperature, centrifuge the reaction mixture twice, pour the supernatant into excess distilled water (the amount of distilled water added is advisable to precipitate a large amount of product), and stir with a glass rod until com...

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Abstract

A kind of epoxidized soybean oil and rosin-cellulose-based polymer blend film and its preparation method and application, maleopimaric anhydride is carried out acid chlorination to obtain MPACl; ethyl cellulose, 4-dimethylaminopyridine, tetrahydrofuran and MPACl is added to the reactor for reaction, the product is precipitated in water, dissolved and reprecipitated with THF, filtered, and vacuum-dried to constant weight to obtain EC-MPA; epoxidized soybean oil and EC-MPA are dissolved in dichloromethane, and poured into In a polytetrafluoroethylene mold, an epoxy soybean oil rosin-cellulose-based polymer blend film was obtained. The blended film prepared by the present invention has high EC molecular weight and high strength, and the rosin structure contains related unsaturated groups, which can realize the function of ultraviolet absorption and fluorescence emission effect, and the characteristics of ESO flexible molecular chains. Cellulose, rosin and The application of epoxidized soybean oil in bio-based polymer anti-stretch film, anti-ultraviolet radiation and fluorescent emission materials provides a way.

Description

technical field [0001] The invention belongs to the technical field of bio-based polymer preparation, and in particular relates to an epoxy soybean oil rosin-cellulose-based polymer blend film and a preparation method and application thereof. Background technique [0002] In the case of the increasing shortage of fossil energy, the development and utilization of biomass polymer materials as a natural renewable resource that has the potential to replace fossil energy is increasingly favored by researchers. Ethyl cellulose (EC) is a kind of thermoplastic cellulose ether, which can be dissolved in various organic solvents and can still maintain good flexibility under low temperature conditions. EC plays the role of bonding, filling and film-forming, and is usually used in synthetic plastics, inks, coatings, insulating materials, etc. EC is non-toxic and is widely used in pharmaceutical excipients and food packaging. EC with high purity and high degree of substitution can be u...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L1/28C08L91/00C08L93/04C08J5/18C09K11/06
CPCC08J5/18C08J2301/28C08J2491/00C08J2493/04C09K11/06C09K2211/145
Inventor 王基夫丘雨玲郭晓亮卢传巍程增会储富祥
Owner INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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