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Polyvinyl chloride and poly(butylene succinate) sheath-core fiber

A polybutylene succinate, skin-core fiber technology, applied in fiber processing, fiber chemical characteristics, conjugated synthetic polymer rayon, etc., can solve the problems of yellow color, low molecular weight, not easy to decompose, etc. , to achieve the effect of being beneficial to environmental protection, improving application performance, and reducing energy consumption in printing and dyeing

Inactive Publication Date: 2010-03-17
WUJIANG YINGXIANG CHEM FIBER
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  • Summary
  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

Aliphatic polyester is an important type of degradable polyester, among which polybutylene succinate has a melting point of 115°C, good stability, not easy to decompose at room temperature, good mechanical properties, and has the possibility of processing and application , is currently a hot spot in the research of degradable polyester. At present, the polybutylene succinate synthesized in China has a low molecular weight and yellowish color, and is mostly used in the field of plastics. The application of polybutylene succinate in the textile field rarely seen

Method used

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Experimental program
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Embodiment

[0029] Preparation of polybutylene succinate: the raw materials are butanediol and succinic acid, the molar ratio of addition is 1.10 to 1.15, the catalyst is toluenesulfonic acid and titanium isopropoxide, and the synthesis of polyester mainly includes Esterification and polycondensation are completed in two steps. In the continuous polymerization process, the esterification reaction is completed through two esterification tanks at normal pressure and reduced pressure, and the polycondensation reaction is completed through two tanks of pre-condensation and final polycondensation. In the synthesis of polybutylene succinate, catalysts, matting agents, stabilizers, synergists and flame retardants should be added. The amount added is the molar amount of butanediol, the catalyst and the polymerization raw materials enter into the esterification reaction together, and the matting agent, stabilizer, synergist and flame retardant are added in the final stage of the polycondensation re...

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PUM

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Abstract

The invention relates to polyvinyl chloride and poly(butylene succinate) sheath-core fiber, which is characterized in that the sheath-core bicomponent fiber is prepared by the following steps: jointlyspinning poly(butylene succinate) obtained through polymerization with polyvinyl chloride, wherein the poly(butylene succinate) is used as the cortex, the polyvinyl chloride is used as the core layer, and the cortex totally wraps the core layer, the weight of the cortex accounts for 20-60 percent of the total weight of the fiber, and the linear density of the finished fiber is in the range of 140-300dtex.

Description

technical field [0001] The invention relates to the field of bicomponent fiber preparation, in particular to a polychloride fiber and polybutylene succinate sheath-core fiber. Background technique [0002] At the moment when the domestic and foreign markets are adjusting and changing, facing the serious surplus of conventional varieties in the chemical fiber industry for many years and the overall backwardness of new fiber material manufacturing technology, the call for technological progress and increasing investment in scientific research at the source of independent innovation is growing louder. As a new type of fiber, degradable fiber is becoming more and more diverse, and its application involves many fields such as medicine, clothing, fishery, construction, sanitation, decoration, and industrial processing. Aliphatic polyester is an important type of degradable polyester, among which polybutylene succinate has a melting point of 115°C, good stability, not easy to decom...

Claims

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Application Information

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IPC IPC(8): D01F8/14D01F8/10D01D5/34C08G63/16D01F1/07D01F1/10
Inventor 王国柱沈家康赵广兵钮真荣
Owner WUJIANG YINGXIANG CHEM FIBER
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