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Preparation method of spandex and olybuthylenesuccinate collateral fiber

A technology of polybutylene succinate and butanediol, which is used in fiber processing, conjugated synthetic polymer man-made filaments, filament/thread forming, etc., can solve the problems of yellowish color and low molecular weight.

Inactive Publication Date: 2011-08-10
JIANGSU YINGXIANG FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a degradable polymer, polybutylene succinate has a melting point of 115°C, good mechanical properties, and the possibility of processing and application. Low, yellowish in color, mostly used in the field of plastics, and the application of polybutylene succinate in the textile field is rarely seen

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0016] 1. Preparation of polysuccinic acid succinate: the raw materials are butanediol and succinic acid, the added molar ratio is 1.10, 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

63000

2600

70

Residence time / min

60

60

60

120

[0019] ...

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PUM

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Abstract

The invention relates to a preparation method of spandex and olybuthylenesuccinate collateral fiber, which is characterized in that firstly olybuthylenesuccinate is obtained by chemical polymerization and then is spun together with spandex, when in spinning, two different polymers are respectively melt, extruded and combined by a spinneret plate at the last minute to form collateral two-componentfiber.

Description

technical field [0001] The invention relates to the field of fiber preparation, in particular to a method for preparing spandex and polybutylene succinate juxtaposed fibers. Background technique [0002] New fiber materials emerge in endlessly, and the properties of new fiber materials are different from traditional fiber materials. New fiber materials include high-performance fibers, high-function fibers and high-sensitivity fibers. New fiber materials are usually used in the production of cutting-edge composite materials, industrial textiles, special protective textiles, etc., and have special contributions in terms of feel, style, touch, texture and appearance of finished products, making the wearability of the final product either unique or superior. Based on natural fibers, or to achieve a special function of taking. [0003] As people pay more and more attention to environmental protection, biodegradable polymer materials (plastics, rubber, fibers, etc.) have become a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F8/14D01F8/16C08G63/16C08G63/78D01D5/32
Inventor 徐关祥
Owner JIANGSU YINGXIANG FIBER