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Fluorine-containing anti-fouling fire-resisting polyester and preparation method thereof

A flame retardant polyester and antifouling technology, applied in the field of fluorine-containing antifouling flame retardant polyester and its preparation, can solve the problems of poor pollution resistance, poor flame retardancy, etc. Flame retardant properties, effects of improving hydrophobic and oleophobic properties and flame retardant properties

Inactive Publication Date: 2015-04-22
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The problem to be solved by the present invention is to provide a polyester with antifouling and flame retardant effect and its preparation method, which can improve the problems of existing polyesters such as poor stain resistance and flame retardancy

Method used

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  • Fluorine-containing anti-fouling fire-resisting polyester and preparation method thereof
  • Fluorine-containing anti-fouling fire-resisting polyester and preparation method thereof
  • Fluorine-containing anti-fouling fire-resisting polyester and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0022] Ethylene glycol, terephthalic acid, 2,3,5,6-tetrafluoroterephthalic acid are used as raw materials, mixed in proportion, and the molar ratio of terephthalic acid to ethylene glycol is 1:0.95, and The molar ratio of terephthalic acid to 2,3,5,6-tetrafluoroterephthalic acid is 1:99 for feeding. The polymerization reaction is divided into esterification and polycondensation processes. The esterification reaction is under the protection of nitrogen, and the pressure is 0.2 Under the condition of MPa, terephthalic acid and ethylene glycol undergo an esterification reaction to form a prepolymer, and the reaction temperature is 250°C for 4 hours. The polycondensation reaction is carried out pre-condensation at high temperature and normal pressure, the reaction temperature is 280°C, and kept for 3 hours; then the post-condensation is carried out under high temperature and high vacuum conditions, the vacuum degree is lower than 60Pa, the reaction temperature is 290°C, and the rea...

Embodiment 2

[0024] Ethylene glycol, terephthalic acid, and 2,3,5,6-tetrafluoroterephthalic acid are used as raw materials, mixed in proportion, and the molar ratio of terephthalic acid to ethylene glycol is 1:1.35, and The molar ratio of terephthalic acid and 2,3,5,6-tetrafluoroterephthalic acid is 10:90 for feeding, the polymerization reaction is divided into esterification and polycondensation process, the esterification reaction is under the protection of nitrogen, and the pressure is 0.4 Under the condition of MPa, terephthalic acid and ethylene glycol undergo an esterification reaction to form a prepolymer, and the reaction temperature is 245°C for 3 hours. The polycondensation reaction is carried out at high temperature and normal pressure for pre-condensation, the reaction temperature is 270°C, and kept for 3h; then the post-condensation is carried out under high temperature and high vacuum conditions, the vacuum degree is lower than 60Pa, the reaction temperature is 285°C, and the ...

Embodiment 3

[0026] Ethylene glycol, terephthalic acid, 2,3,5,6-tetrafluoroterephthalic acid are used as raw materials, mixed in proportion, and the molar ratio of terephthalic acid to ethylene glycol is 1:1.25, and The molar ratio of terephthalic acid and 2,3,5,6-tetrafluoroterephthalic acid is 50:50 for feeding. The polymerization reaction is divided into esterification and polycondensation processes. The esterification reaction is under the protection of nitrogen, and the pressure is 0.3 Under the condition of MPa, terephthalic acid and ethylene glycol undergo an esterification reaction to form a prepolymer, and the reaction temperature is 250°C for 2 hours. The polycondensation reaction is pre-condensed at high temperature and normal pressure, the reaction temperature is 280°C, and kept for 2h; then the post-condensation is carried out under high temperature and high vacuum conditions, the vacuum degree is lower than 60Pa, the reaction temperature is 290°C, and the reaction time is 3h ...

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Abstract

The invention discloses fluorine-containing anti-fouling fire-resisting polyester and a preparation method thereof. A PET chain segment of the anti-fouling fire-resisting polyester contains -OCH2CH2OCOC6H4COOCH2CH2O- and -OCH2CH2OCOC6F4COOCH2CH2O-, a molar ratio of the two chain segments is 95:5 to 1:99, the surface energy of the polyester is less than 25mJ / cm<2>, a limit oxygen index is more than 34, and the characteristic viscosity of the polyester is greater than 0.55dL / g. The preparation method comprises the following steps: mixing raw materials such as ethylene glycol, terephthalic acid and 2,3,5,6-tetrafluoroterephthalic acid according to a ratio, and carrying out esterification reaction between the terephthalic acid and ethylene glycol under a pressurizing condition; then carrying out prepolymerization under the high temperature and normal pressure, and carrying out post-polymerization reaction under a high temperature and vacuum condition, thus preparing the anti-fouling fire-resisting polyester. The prepared polyester has hydro-oleophobicity, is excellent in fire resistance and anti-fouling performance and is wide in application prospect in the field of home textiles.

Description

technical field [0001] The invention relates to a fluorine-containing antifouling and flame-retardant polyester and a preparation method thereof, belonging to the field of multifunctional modification of polyester. Background technique [0002] Polyester fiber is a polyester obtained by polycondensation of organic dibasic acid and dibasic alcohol, and then a synthetic fiber obtained by melt spinning. Usually polyester fiber refers to the fiber spun from polyethylene terephthalate. The Chinese trade name is polyester, which is currently the largest variety of synthetic fiber. Polyester fiber has excellent properties such as high strength, high modulus, good shape retention, and high dimensional stability, and is widely used in various fields such as clothing, decoration, industry and agriculture. In 2012, the output of polyester fiber in China reached 32 million tons. However, due to the serious homogeneity of products and the low added value of products, many enterprises ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/682C08G63/78
Inventor 江振林王朝生汤廉王华平季诚昌江晓婷
Owner DONGHUA UNIV
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