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Biology-based electrostatic dissipation polyester and preparation method thereof

A static-dissipative, bio-based technology, applied in the field of high-molecular-type bio-based polyester functional materials, to achieve huge economic and ecological value

Active Publication Date: 2018-09-28
GUANGDONG IND TECHN COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the bio-based polyesters disclosed in the prior art, such as ethylene glycol furandicarboxylate (PEF) and butylene furandicarboxylate (PBF), have high strength and excellent mechanical properties, and are mainly used in hard plastics. Products, no research and reports related to the preparation technology of bio-based electrostatic dissipative polyester functional materials

Method used

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  • Biology-based electrostatic dissipation polyester and preparation method thereof
  • Biology-based electrostatic dissipation polyester and preparation method thereof
  • Biology-based electrostatic dissipation polyester and preparation method thereof

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preparation example Construction

[0081] The preparation flow chart of bio-based electrostatic dissipative polyester of the present invention is as follows figure 1 As shown, the specific content is as follows:

[0082] (1) Esterification process stage:

[0083] The present invention introduces 2,5-furandicarboxylic acid (FDCA) in the esterification process section to react with ethylene glycol (EG) for esterification. There are two reasons:

[0084] First, FDCA is rich in sources and can be prepared from agricultural wastes such as corn stalks through a series of catalytic cracking, which has the characteristics of biomass;

[0085] The second is that the aromaticity and structural symmetry of FDCA are weaker than that of the benzene ring, and the presence of an oxygen atom containing a lone pair of electrons in the furan ring increases the polarity of FDCA.

[0086] Therefore, by replacing FDCA, bio-based polyester materials can be prepared; in addition, FDCA will increase the polyether composition and che...

Embodiment 1

[0112] (1) In a 6L stainless steel autoclave, add 1500g of 2,5-furandicarboxylic acid (FDCA), 840g of ethylene glycol (EG), 0.6g of antimony trioxide, and replace the air in the autoclave with nitrogen. ℃-250℃, 0.3-0.4MPa for esterification reaction, when no more water evaporates, release the pressure to normal pressure.

[0113] (2) 300g PEG 6000, 0.1g cobalt acetate, 0.28g phosphoric acid, 0.4g triphenyl phosphite, 75g bishydroxyethyl isophthalate-5-sodium sulfonate (SIPE) and 500g ethylene glycol ( EG) mix, stir evenly, add to the reaction kettle, raise the temperature to 270°C, gradually reduce the absolute pressure in the kettle to below 50Pa, the reaction time is 2-3 hours, until the viscosity of the system does not increase.

[0114] (3) After the reaction is completed, feed nitrogen gas to press out the melt, pelletize and dry to obtain bio-based electrostatic dissipative ethylene furandicarboxylate slices.

[0115] Effect test: The viscosity of the obtained finished ...

Embodiment 2

[0117] (1) In a 6L stainless steel autoclave, add 750g 2,5-furandicarboxylic acid (FDCA), 750g terephthalic acid (PTA), 840g ethylene glycol (EG), 0.6g antimony trioxide, and feed After replacing the air in the kettle with nitrogen, carry out the esterification reaction at 240°C-250°C and 0.3-0.4MPa. When no more water evaporates, release the pressure to normal pressure.

[0118] (2) Mix 0.1g of cobalt acetate, 0.28g of phosphoric acid, 0.4g of triphenyl phosphite with 500g of ethylene glycol (EG), stir well, add to the reaction kettle, raise the temperature to 270°C, and gradually The absolute pressure drops below 50Pa, and the reaction time is 2-3 hours until the viscosity of the system no longer rises.

[0119] (3) After the reaction is completed, feed nitrogen gas to press out the melt, pelletize and dry to obtain bio-based electrostatic dissipative ethylene furandicarboxylate slices.

[0120] Infrared Spectroscopic and Thermal Analytical Detection of Bio-Based Static Dis...

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Abstract

The invention discloses biology-based electrostatic dissipation polyester and a preparation method thereof. The biology-based electrostatic dissipation polyester comprises the following raw material components: 2,5-furandicarboxylic acid, aliphatic dihydric alcohols, polyether, a structure modifier, a catalyst and a stabilizer, and further comprises terephthalic acid, m-phthalic acid and inorganicsalt. The preparation method comprises the following steps: (1) esterification reaction: configuring the 2,5-furandicarboxylic acid and the aliphatic dihydric alcohols, simultaneously adding catalysts, mixing and stirring uniformly, and carrying out esterification reaction to obtain polyester mother liquor, wherein the esterification reaction is finished when the water yield reaches 95% of a theoretical water yield; (2) condensation polymerization: mixing the structure modifier, the stabilizer and the polyether, stirring uniformly and then adding into the polyester mother liquor, and carryingout condensation polymerization; and (3) after reaction is finished, discharging melt under nitrogen protection, and cooling, pelletizing and drying to obtain the biology-based electrostatic dissipation polyester. The obtained product has green environmental protection property, good electrostatic dissipation ability and mechanical property.

Description

technical field [0001] The invention relates to a polyester and a preparation method thereof, belonging to the technical field of polymer bio-based polyester functional materials, in particular to a bio-based electrostatic dissipative polyester and a preparation method thereof. Background technique [0002] Polyethylene terephthalate (PET) has good physical and mechanical properties and chemical stability, large output and low price. It is used in textile fibers, films, bottled containers, food packaging, and engineering plastics industries such as automobiles and electronics. fields, have been widely and important applications. But there is a problem, the molecular structure of PET is regular, easy to crystallize, the moisture absorption rate is only 0.4% under the standard environment, and the surface resistivity is as high as 10 14 ohms / square, prone to static electricity. According to statistics, the annual loss of electronic products caused by electrostatic discharge ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/672C08G63/688
CPCC08G63/672C08G63/6886
Inventor 杨崇岭谭寿再
Owner GUANGDONG IND TECHN COLLEGE
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