生物可降解聚己二酸-对苯二甲酸丁二醇酯纤维的制备及其环境降解性能

doi:10.13475/j.fzxb.20210800907

纺织学报 ›› 2022, Vol. 43 ›› Issue (02): 37-43.doi: 10.13475/j.fzxb.20210800907

生物可降解聚己二酸-对苯二甲酸丁二醇酯纤维的制备及其环境降解性能

陈咏¹, 乌婧¹^,²^,³(), 王朝生¹, 潘小虎⁴, 李乃祥⁴, 戴钧明⁴, 王华平¹

1.东华大学材料科学与工程学院, 上海 201620
2.东华大学产业用纺织品教育部工程研究中心, 上海 201620
3.东华大学纺织科技创新中心, 上海 201620
4.中国石化仪征化纤有限责任公司, 江苏扬州 211900

收稿日期:2021-08-02 修回日期:2021-11-22 出版日期:2022-02-15 发布日期:2022-03-15
通讯作者: 乌婧
作者简介:陈咏(1992—),男,博士。主要研究方向为环境友好高分子材料。
基金资助:
中国石油化工有限公司研发项目(420039-1);产业用纺织品教育部工程研究中心基地建设项目开放课题(K2020-04)

Preparation and environmental degradation behavior of biodegradable poly (butylene adipate-co-terephthalate) fiber

CHEN Yong¹, WU Jing¹^,²^,³(), WANG Chaosheng¹, PAN Xiaohu⁴, LI Naixiang⁴, DAI Junming⁴, WANG Huaping¹

1. College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
2. Engineering Research Center of Technical Textile, Ministry of Education, Donghua University, Shanghai 201620, China
3. Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, China
4. Sinopec Yizheng Chemical Fibre Co., Ltd., Yangzhou, Jiangsu 211900, China

Received:2021-08-02 Revised:2021-11-22 Published:2022-02-15 Online:2022-03-15
Contact: WU Jing

摘要/Abstract

摘要：

为研究生物可降解聚己二酸-对苯二甲酸丁二醇酯(PBAT)的可纺性及纤维降解性能,采用熔融纺丝-牵伸二步法制得生物可降解PBAT纤维,研究了纺丝温度、牵伸倍数对PBAT纤维结晶度、回潮率、力学性能的影响,对比分析了PBAT纤维在不同环境下的降解性能。结果表明:PBAT的最佳纺丝温度为260 ℃,且随着牵伸倍数的增加,PBAT纤维的断裂强度、结晶度和取向度呈快速上升趋势,而断裂伸长率呈下降趋势;低温、干燥的非生物环境因素对PBAT纤维的降解性能影响最小,在该环境中储存1个月纤维断裂强度仅下降3.6%;相较于酶解和水解生物环境条件下,土壤环境对PBAT纤维的影响更明显,可使纤维的结晶度从34.45%下降到19.36%。

关键词: 聚己二酸-对苯二甲酸丁二醇酯, 环境降解性能, 生物基纤维, 可纺性, 力学性能

Abstract:

In order to study the spinnability and fiber degradation of biodegradable poly(butylene adipate-co-terephthalate) (PBAT), biodegradable PBAT fiber was prepared using a two-step method involving melt spinning and drafting. The effects of spinning temperature and drafting ratio on the crystallinity, moisture regain and mechanical properties of PBAT fiber were studied, and the degradation properties of PBAT fiber in different environments were compared and analyzed. The results show that the optimum spinning temperature of PBAT was 260 ℃, and with the increase of drafting ratio, the breaking strength, crystallinity and orientation of PBAT fiber increased rapidly, while the elongation at break decreased. It was found that the abiotic cold and dry environments had the least influence on the properties of PBAT fibers, where the fiber strength decreased by only 3.6% after one month storage under such a circumstance. Under biological conditions, on the other hand, the influence of soil was more obvious compared to enzymatic hydrolysis and hydrolysis, where the crystallinity of PBAT fiber decreased from 34.45% to 19.36%.

Key words: poly(butylene adipate-co-terephthalate), environmental degradation performance, bio-based fiber, spinnability, mechanical property

中图分类号:

TQ342

陈咏, 乌婧, 王朝生, 潘小虎, 李乃祥, 戴钧明, 王华平. 生物可降解聚己二酸-对苯二甲酸丁二醇酯纤维的制备及其环境降解性能[J]. 纺织学报, 2022, 43(02): 37-43.

CHEN Yong, WU Jing, WANG Chaosheng, PAN Xiaohu, LI Naixiang, DAI Junming, WANG Huaping. Preparation and environmental degradation behavior of biodegradable poly (butylene adipate-co-terephthalate) fiber[J]. Journal of Textile Research, 2022, 43(02): 37-43.

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螺杆温度/℃				纺丝温度/℃	纺丝速度/ (m·min^-1)	喷丝板参数
Ⅰ区	Ⅱ区	Ⅲ区	Ⅳ区	纺丝温度/℃	纺丝速度/ (m·min^-1)	喷丝板参数
255	258	260	260	260	800	36×0.3 ×0.9

纺丝温度/℃	纺丝情况	纺丝性
250	硬头丝	差
260	较好	好
270	断丝多	差
280	不可纺	差

牵伸倍数	线密度/ dtex	断裂强度/ (cN·dtex^-1)	断裂伸长率/%
1.4	262.38	1.15	186.6
1.7	257.74	1.25	170.4
2.0	235.30	1.38	164.4
2.3	189.46	1.69	133.7
2.5	139.60	2.24	66.8

牵伸倍数	声速取向因子/ (km·s^-1)	结晶度/%	回潮率/%
1.4	0.402	31.43	1.46
1.7	0.431	31.73	1.33
2.0	0.462	35.85	1.13
2.3	0.576	41.67	0.81

生物可降解聚己二酸-对苯二甲酸丁二醇酯纤维的制备及其环境降解性能

Preparation and environmental degradation behavior of biodegradable poly (butylene adipate-co-terephthalate) fiber

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