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A kind of preparation method of highly hydrophilic all bio-based polyester

An all-biological, polyester-based technology, applied in the field of bio-based polyester, can solve the problem of non-renewable raw materials and achieve the effects of maintaining stability, suppressing volatilization, and ensuring stability

Active Publication Date: 2016-01-20
TIANE CHEM FIBER GROUP CORP BAODING +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the terephthalic acid used in the entire reaction is still petroleum-based, making half of the raw materials in the preparation process non-renewable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Add 160kg of bio-based 2,5-furandic acid and 65kg of bio-based ethylene glycol, 8kg of bio-based 1,3-propanediol in the reactor, wherein the components of bio-based ethylene glycol: the quality of ethylene glycol The fraction is 90%, the mass fraction of 1,2-propanediol is 5%, the mass fraction of 1,2-butanediol is 2%, the mass fraction of pentanediol is 2%, the mass fraction of sorbitol is 1%, add The amount of the catalyst is 275 ppm each of titanium dioxide and antimony trioxide, which is 45.65 g, respectively. 46g of trimethyl phosphate and 69g of Antioxidant 1010 were added. After mixing evenly, carry out esterification reaction at 225° C. under a pressure of 0.343 MPa, and the reaction time is 4 hours. After the esterification, the product was transported to the polycondensation tank, and at the same time, the temperature was raised to 260° C. for the polycondensation reaction, and the polycondensation time was 6 hours. Finally, the full bio-based polyester is o...

Embodiment 2

[0052] Add 166kg of bio-based 2,5-furan dioic acid, 93kg of bio-based ethylene glycol, and 11kg of bio-based 1,3-propanediol into the reactor, wherein the components of bio-based ethylene glycol are: ethylene glycol The mass fraction is 99.2%, the 1,2-propylene glycol mass fraction is 0.4%, the 1,2-butanediol mass fraction is 0.2%, the pentanediol mass fraction is 0.1%, and the sorbitol mass fraction is 0.1%, The added catalyst was 120 ppm of tetrabutyl titanate, which was 19.92 g. Add 52g of trimethyl phosphate, mix well, and carry out esterification reaction at 280°C, 0.323MP, and the reaction time is 0.5h. After esterification, the product was transported to a polymerization tank, and at the same time, the temperature was raised to 290° C. for polycondensation reaction, and the polycondensation time was 2 hours. Finally, the full bio-based polyester is obtained.

Embodiment 3

[0054] Add 166kg of bio-based 2,5-furandic acid, 80kg of bio-based ethylene glycol, and 9kg of bio-based 1,3-propanediol into the reactor, wherein the components of bio-based ethylene glycol are: ethylene glycol The mass fraction is 95%, the mass fraction of 1,2-propanediol is 2%, the mass fraction of 1,2-butanediol is 1.5%, the mass fraction of pentylene glycol is 1%, and the mass fraction of sorbitol is 0.5% , the added catalyst is antimony trioxide, 550ppm, which is 91.3g. 49g of alkyl phosphate diester and 49g of antioxidant 168 were added. After mixing evenly, carry out esterification reaction at 240° C. under a pressure of 0.443 MPa, and the reaction time is 1.5 h. After esterification, the product was transported to a polymerization tank, and at the same time, the temperature was raised to 280° C. for polycondensation reaction, and the polycondensation time was 5 hours. Finally, the full bio-based polyester is obtained.

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PUM

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Abstract

The invention discloses a preparation method of high-hydrophilicity full-bio-based polyester. The preparation method is characterized by comprising the steps of preparing bio-based ethanediol and bio-based 1,3-propanediol into bio-based mixed polyol according to a mass ratio of 1:(0.1-10); preparing bio-based 2,5-furan diacid and the bio-based mixed polyol into slurry according to a mass ratio of 1:(1.05-1.5); adding the slurry into an esterification reaction kettle to perform esterification reaction; and finally, performing polycondensation on the mixture to prepare biomass polyester. All the raw materials used in the preparation method disclosed by the invention come from biomasses, so that the oil consumption and carbon dioxide discharged outwards during smelting can be reduced, and meanwhile, the phenomenon of desperate shortage of oil in China can be relieved. The preparation method disclosed by the invention is relatively low in reaction temperature and high in reaction efficiency, the energy consumption is reduced, industrial production can be realized easily, and the production cost is reduced.

Description

technical field [0001] The invention relates to a preparation method of highly hydrophilic fully bio-based polyester, belonging to the technical field of bio-based polyester. Background technique [0002] With the development of the global economy, the demand for oil is increasing day by day, while oil resources are decreasing day by day, the contradiction between oil supply and demand is becoming more and more serious, and the war for oil is intensifying. The whole world is working hard to research and explore the inexhaustible biological resources on the earth. Using renewable biomass resources to develop bio-based chemical industry and replace petrochemical products is the only way to solve the resource and energy crisis and an important way for sustainable development. Therefore, the development of raw materials that can reduce or replace petroleum is a very important research direction. [0003] Polyethylene terephthalate (PET) is widely used in packaging materials, f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G63/668C08G63/85
Inventor 王朝生王华平陈向玲王欢
Owner TIANE CHEM FIBER GROUP CORP BAODING