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Biomass polyester short fiber and preparation method thereof

A polyester staple fiber and biomass technology is applied in the field of biomass polyester staple fiber and its preparation. Conservation and sustainable development, ensuring high quality and stability, improving the effect of dependence

Active Publication Date: 2012-07-18
QUANZHOU HAITIAN MATERIAL TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the existing technology for the preparation of this type of PDT polyester fiber is not mature. The content of sorbitol etc., as Donghua University discloses a kind of preparation method of corn-based ethylene glycol in CN200610028411.7 patent, and the method for preparing PDT copolyester fiber by direct polymerization of ethylene glycol prepared by this method, The composition of the multi-component polyol is stable, which limits the content of ethylene glycol and propylene glycol, but does not involve the content of the remaining components and the design of the subsequent fiber spinning process, which will easily lead to the instability of the performance index of the polyester itself, and then It affects the subsequent spinning process of textiles (such as short fibers), which cannot meet the mass production of factories, and is inconvenient for manufacturers to control product parameters. The quality and stability of the resulting textiles are insufficient

Method used

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  • Biomass polyester short fiber and preparation method thereof
  • Biomass polyester short fiber and preparation method thereof
  • Biomass polyester short fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The raw material biological polyester PDT is produced by a continuous polymerization process, that is, terephthalic acid and biomass multi-component polyols are prepared into a slurry at a molar ratio of 1:1.05, and after esterification and polycondensation reactions, biomass Polyester (polyester PDT); Wherein, biomass multi-component polyol is made after fermentation of biomass industrial starch, and it comprises following weight ratio components: ethylene glycol 90wt%, 1,2-propanediol 5wt%, 1 , 2-butanediol 2wt%, pentanediol 2wt%, sorbitol 1wt%; the temperature of esterification reaction is 280 ℃, the relative pressure is 0.3MPa; Also add catalyst, heat stabilizer and antioxidant in the esterification reaction, wherein catalyst is titanium dioxide, add-on is 500ppm, heat stabilizer is antimony trioxide, add-on is 0.02wt%, antioxidant is antioxidant 1010, add-on is 0.03wt%, and the basis of the added amount of the catalyst, heat stabilizer and antioxidant is the mass o...

Embodiment 2

[0044] The raw material bio-polyester PDT is produced by continuous polymerization process, that is, terephthalic acid and biomass multi-component polyols are prepared into slurry according to the molar ratio of 1:1.5, and the biomass is obtained through esterification reaction and polycondensation reaction. Polyester; Wherein, biomass multi-component polyol is made after fermentation of biomass industrial starch, and it comprises following weight ratio components: ethylene glycol 99.2wt%, 1,2-propanediol 0.4wt%, 1,2- 0.2wt% butanediol, 0.1wt% pentylene glycol, 0.3wt% sorbitol; the temperature of the esterification reaction is 225°C, and the relative pressure is 0.1MPa; the temperature of the polycondensation reaction is kept at about 260°C, and the duration is 2h; the above Catalyst, heat stabilizer and antioxidant are also added in the esterification reaction, wherein adding catalyst is tetrabutyl titanate, and the addition is 120ppm, and heat stabilizer is alkyl phosphoric a...

Embodiment 3

[0057] The raw material bio-polyester PDT is produced by a continuous polymerization process, that is, terephthalic acid and biomass multi-component polyols are formulated into a slurry at a molar ratio of 1:1.2, and the biomass is obtained through esterification and polycondensation reactions. Polyester; Wherein, biomass multi-component polyol is made after fermentation of biomass industrial starch, which includes the following components by weight: ethylene glycol 95wt%, 1,2-propanediol 3.1wt%, 1,2-butane 1wt% diol, 0.8wt% pentylene glycol, 0.1wt% sorbitol; the temperature of the esterification reaction is 225°C, and the relative pressure is 0.2MPa; the temperature of the polycondensation reaction is kept at about 260°C, and the duration is 3h; Also add catalyzer, heat stabilizer and antioxidant in the reaction, wherein add catalyzer and be antimony trioxide, add-on is 300ppm, heat stabilizer is trinonyl phenyl phosphite, add-on is 0.001wt%, and antioxidant is antimony trioxi...

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Abstract

The invention discloses a biomass polyester short fiber and a preparation method thereof. The preparation method comprises the following steps of: mixing terephthalic acid and biomass mixed polyatomic alcohol in a molar ratio of 1:1.05-1:1.5 to form slurry, and performing esterification and condensation polymerization to obtain a biomass polyester chip, wherein biomass multi-component polyatomic alcohol comprises 90 to 99.2 weight percent of ethylene glycol, 0.4 to 5 weight percent of 1,2-propylene glycol, 0.2 to 2 weight percent of 1,2-butanediol, 0.1 to 2 weight percent of pentanediol and 0.1 to 1 weight percent of sorbitol; and processing the biomass polyester chip by using the conventional polyester spinning equipment to obtain the environment-friendly biomass polyester short fiber, wherein a specified process parameter is controlled in the process. The raw material chip of the environment-friendly biomass polyester short fiber is derived from biomass, so that the dependence on petroleum resources is reduced, and an intense situation of energy sources is relieved. A biomass dibasic alcohol component is fixed, so that the prepared biomass polyester short fiber has stable and controllable quality, extremely good printing and dyeing effects and a wide application field, and is high in hydrophilcity, flexibility, washing fastness and ironing fastness.

Description

technical field [0001] The invention relates to a staple fiber and a preparation method thereof, in particular to a biomass polyester staple fiber and a preparation method thereof. Background technique [0002] Polyester polyester fiber itself has excellent performance and low price. It is the most representative and largest fiber variety among the three major synthetic fibers in my country, and its main raw material, ethylene glycol, basically comes from petroleum industry products. Therefore, from the industry From the perspective of sustainable development, it is necessary to find new materials and new processes that can replace petroleum-based ethylene glycol, so that the polyester industry can effectively avoid the risk of rising prices of petrochemical raw materials. [0003] Recently, bio-based ethylene glycol as an alternative to petroleum-based ethylene glycol has received more and more attention. For example, DuPont has produced 1,3-propanediol by fermenting corn t...

Claims

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Application Information

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IPC IPC(8): D01F6/92D01F1/10C08G63/20D01D5/08D01D5/12
Inventor 王启明王朝生李晚享蒋宇陈向玲张雯
Owner QUANZHOU HAITIAN MATERIAL TECH CORP
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