Polyvinyl chloride fiber and poly butylene succinate parallel fiber

A technology of polybutylene succinate and butanediol is applied in fiber processing, fiber chemical characteristics, conjugated synthetic polymer rayon, etc., and can solve the problems of low molecular weight, yellowish color, and not easy to decompose.

Inactive Publication Date: 2010-03-17
WUJIANG YINGXIANG CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 curren

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0016] 1. Preparation of polybutylene succinate: the raw materials are butanediol and succinic acid, the added molar ratio is 1.15, the catalyst is p-toluenesulfonic acid and tetrabutyl titanate, 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 under normal pressure and reduced pressure, and the polycondensation reaction is completed through two tanks of pre-condensation polymerization and final polycondensation

[0017] Synthetic process of polybutylene succinate:

[0018] condition

Ester I

Esterification II

Precondensation

final polycondensation

Reaction temperature / ℃

140～150

150～160

230～240

230～240

Reaction pressure / Pa

1.3×10 5

65000

3000

70

Residence time / min

70

70

60

150

...

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PUM

PropertyMeasurementUnit
Stretch temperatureaaaaaaaaaa
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Abstract

A polyvinyl chloride fiber and poly butylene succinate parallel fiber is characterized in that a parallel bicomponent fiber can be obtained by the following steps: firstly conducting joint spinning onthe poly butylene succinate obtained by chemical polymerization and the polyvinyl chloride fiber, then respectively melting two different types of polymers in spinning, and finally conducting out-extruding by a spinneret plate to combine at the last moment.

Description

technical field [0001] The invention relates to the field of fiber preparation, in particular to a juxtaposed fiber of polyvinyl chloride and polybutylene succinate. 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 treatment. 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 roo...

Claims

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Application Information

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IPC IPC(8): D01F8/14D01F8/10D01F1/07D01F1/10D01D5/32
Inventor 王国柱沈家康赵广兵钮真荣
Owner WUJIANG YINGXIANG CHEM FIBER
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