Biodegradable polyester/recycled polyester sheath-core fiber and preparation method thereof

A technology of biodegradable polyester and recycled polyester, applied in fiber processing, filament/thread forming, conductive/antistatic filament manufacturing, etc., can solve the problem of high cost and limited diversification of functional fiber varieties and development and market Application and other issues, to achieve the effect of soft hand feeling, good antistatic effect, and reduce product cost

Inactive Publication Date: 2015-07-08
SHANGHAI SHEEP IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is not much research and development on PBAT fiber, and its performance needs to be improved, especially the high cost of PBAT, which limits the development and market application of its functional fiber variety diversification

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The antistatic functional material ATO is subjected to surface modification treatment, the specific process is: sodium hexametaphosphate ((NaPO 3 ) 6 ), silane coupling agent (KH550) and deionized water were added to the container, and then nano-ATO was gradually added to it, and ultrasonic oscillation was stirred at room temperature for 30 minutes; under stirring at a speed of 150 rad / min, reflux in a 70°C water bath for 4 hours; the resulting product was filtered and dried in a vacuum oven at 85°C for 24 hours to complete the surface modification treatment of ATO; wherein, (NaPO 3 ) 6 Accounting for 1wt% of ATO, KH550 accounts for 1wt% of ATO.

[0020] The PBAT chip and the regenerated polyester chip were vacuum drum-dried respectively. The drying temperature of the PBAT chip was 90°C and the drying time was 48 hours; the drying temperature of the recycled polyester chip was 140°C and the drying time was 12 hours; The moisture content of the slices after drying is ...

Embodiment 2

[0026] The antistatic functional material ATO is subjected to surface modification treatment, the specific process is: sodium hexametaphosphate ((NaPO 3 ) 6 ), silane coupling agent (KH550) and deionized water were added to the container, and then nano-ATO was gradually added to it, and ultrasonic oscillation was stirred at room temperature for 30 minutes; under stirring at a speed of 150 rad / min, reflux in a 70°C water bath for 4 hours; the resulting product was filtered and dried in a vacuum oven at 85°C for 24 hours to complete the surface modification treatment of ATO; wherein, (NaPO 3 ) 6 It accounts for 2wt% of ATO, and KH550 accounts for 2wt% of ATO.

[0027] The PBAT chip and the regenerated polyester chip were vacuum drum-dried respectively. The drying temperature of the PBAT chip was 90°C and the drying time was 48 hours; the drying temperature of the recycled polyester chip was 150°C and the drying time was 10 hours; the two The moisture content of the slices aft...

Embodiment 3

[0033] The antistatic functional material ATO is subjected to surface modification treatment, the specific process is: sodium hexametaphosphate ((NaPO 3 ) 6 ), silane coupling agent (KH550) and deionized water were added to the container, and then nano-ATO was gradually added to it, and ultrasonic oscillation was stirred at room temperature for 30 minutes; under stirring at a speed of 150 rad / min, reflux in a 70°C water bath for 4 hours; the resulting product was filtered and dried in a vacuum oven at 85°C for 24 hours to complete the surface modification treatment of ATO; wherein, (NaPO 3 ) 6 It accounts for 2.5wt% of ATO, and KH550 accounts for 2.5wt% of ATO.

[0034] The PBAT chip and the regenerated polyester chip were vacuum drum-dried respectively, wherein the drying temperature of the PBAT chip was 100°C and the drying time was 36 hours; the drying temperature of the recycled polyester chip was 160°C and the drying time was 8 hours; the two The moisture content of th...

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Abstract

The invention relates to a biodegradable polyester/recycled polyester sheath-core fiber and a preparation method thereof. The biodegradable polyester/recycled polyester sheath-core fiber is composed of a sheath layer and a core layer, wherein the sheath layer consists of biodegradable polyester, poly adipic acid/butylene-terephthalate and an antistatic functional material, and the core layer is recycled polyester. The preparation method comprises the following steps: compounding the PBAT with the antistatic functional material subjected to surface modification, respectively performing vacuum tumbler drying and screw melt extrusion with the recycled polyester, and performing composite spinning to prepare the biodegradable polyester/recycled polyester sheath-core fiber. According to the prepared biodegradable polyester/recycled polyester sheath-core fiber, the PBAT fiber as the sheath layer has a biodegradability performance, and the core layer adopts the recycled polyester which can be recycled, so that the product cost is greatly lowered. The biodegradable polyester/recycled polyester sheath-core fiber has a good antistatic function and is light in color, also has good mechanical property and rebound resilience, is soft in handfeel, and can be blended with cotton, wool and other synthetic fibers, is an economic and environmental-friendly fiber, and can be widely applied to fields of products of home textiles and blankets.

Description

technical field [0001] The invention belongs to the technical field of chemical fiber production, and in particular relates to a biodegradable polyester / regenerated polyester sheath-core fiber and a preparation method thereof. Background technique [0002] The advent of synthetic fibers and their rapid development have greatly improved human life, and have been widely used in various fields. However, as the energy crisis and environmental issues have become global concerns, the huge production and consumption of synthetic fibers have also had a serious impact on this. First, synthetic fibers based on non-renewable petroleum resources will face a shortage of raw materials with the increasing shortage of petroleum resources; second, after waste fibers, products and clothing enter the environment, they will cause long-term and deep-seated damage due to their difficulty in degradation. ecological environment problems. Therefore, bio-based chemical fibers with excellent charact...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/14D01F1/09D01D5/34D01D13/00
Inventor 周哲李世刚缪晓辉黄荣平黄卫平
Owner SHANGHAI SHEEP IND
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