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Preparation method of completely biodegradable polybutylene succinate filament

A polybutylene succinate, biodegradation technology, applied in the direction of single-component polyester artificial filament, complete equipment for producing artificial thread, melt spinning method, etc., can solve the problem of polybutylene succinate Problems such as not being able to melt spinning alone, to achieve the effect of good spinning processing performance, simple preparation method and obvious effect

Active Publication Date: 2013-08-14
SHAOXING GLOBAL CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention proposes a preparation method of fully biodegradable polybutylene succinate filament, which solves the technical problem that polybutylene succinate cannot be melt-spun alone in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A preparation method of fully biodegradable polybutylene succinate filament, comprising:

[0028] (a) Buy polybutylene succinate (PBS) slices from the market, and the slices are pre-crystallized and then enter the drying tower, and the PBS slices are dried by a vacuum drum dryer. The drum of the drum is slightly inclined And can rotate the cylinder, the wet slices enter from the upper part of one end, and the dry slices are collected from the lower part of the other end. The hot air enters from the feed end or the discharge end, and is discharged from the upper part of the other end. There is a forward lifting board in the cylinder, so that the slices are continuously picked up and sprinkled during the rotation process in the cylinder, so that they can fully contact with the hot air flow, so as to improve the drying efficiency. The drying temperature is 60-90° C. and the drying time is 6-12 hours, so that the moisture content of the slices is lower than 50 ppm.

[002...

Embodiment 2

[0034] A preparation method of fully biodegradable polybutylene succinate filament, comprising:

[0035] (a) Purchase polybutylene succinate (PBS) slices from the market. The slices first enter the pre-crystallizer (whether to pass through the crystallizer is selected according to the conditions of the material), and then enter the drying tower, using a vacuum drum The dryer dries the PBS slices. The drum of the drum is a slightly inclined and rotatable cylinder. The wet slices enter from the upper part of one end, and the dry slices are collected from the lower part of the other end. The hot air enters from the feed end or the discharge end, and is discharged from the upper part of the other end. There is a forward lifting board in the cylinder, so that the slices are continuously picked up and sprinkled during the rotation process in the cylinder, so that they can fully contact with the hot air flow, so as to improve the drying efficiency. The drying temperature is 60-90° C...

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Abstract

The invention discloses a preparation method of completely biodegradable polybutylene succinate filament. The preparation method comprises the following steps of: (a), drying polybutylenes succinate slice, wherein the drying temperature is 60-90 DEG C and the drying time is 6-12 hours; (2), carrying out melt spinning on the dried polybutylene succinate slice to obtain polybutylenes succinate pre-oriented yarn (POY), fully oriented yarn (FOY) or high orientated tarn (HOY); and (c), carrying out after-processing on the pre-orientated yarn to prepare the polybutylene succinate filament, wherein the stretching ratio is 1.2-1.85, the deformation temperature is 50-100 DEG C, and the rolling speed is 450m / min-650m / min. The preparation method of the completely biodegradable polybutylene succinate filament is simple, environment-friendly, and good in spinning processing performance. Moreover, the preparation method can be used for obtaining 100% of PBS (Polybutylenes Succinate) filament. Besides, the preparation method is carried out at low temperature, and is energy-saving and emission-reducing and low-carbon.

Description

technical field [0001] The invention relates to the field of preparation of polybutylene succinate filaments, in particular to a preparation method of completely biodegradable polybutylene succinate filaments. Background technique [0002] Completely biodegradable plastics maintain the same level of function as existing plastics during use. After use, they can act on microorganisms such as bacteria, fungi, and seaweed in nature, and finally decompose into inorganic polymer materials such as water and carbon dioxide, thereby preventing environmental pollution. It plays a role in protecting the soil and the environment, so it is called "green plastic". Completely biodegradable plastics can be divided into microbially synthesized degradable plastics, natural product degradable plastics and chemically synthesized degradable plastics from the composition of raw materials and preparation methods. [0003] Chemically synthesized degradable plastics can be divided into aliphatic po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/62D01D13/00D01D5/08
Inventor 徐双喜杨国军陈跃平杨美桂
Owner SHAOXING GLOBAL CHEM FIBER
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