Journal of Textile Research ›› 2023, Vol. 44 ›› Issue (04): 8-15.doi: 10.13475/j.fzxb.20220306908

• Fiber Materials • Previous Articles     Next Articles

Preparation and properties of plasticized polyvinyl alcohol for sea-island fiber production

WANG Shuanghua1,2, WANG Dong1,2, FU Shaohai1,2(), ZHONG Hongtian3, DONG Peng3   

  1. 1. Jiangsu Engineering Research Center for Digital Textile Inkjet Printing, Wuxi, Jiangsu 214122, China
    2. Key Laboratory of Eco-Textiles (Jiangnan University), Ministry of Education, Wuxi, Jiangsu 214122, China
    3. Jiangsu Jujie Microfiber Technology Group Co., Ltd., Suzhou, Jiangsu 215200, China
  • Received:2022-03-18 Revised:2022-12-09 Online:2023-04-15 Published:2023-05-12

RichHTML

763

PDF (PC)

135

Abstract:

Objective Sea-island fibers, which are mostly prepared by melt composite spinning, are favored by the textile industry due to the excellent properties and high added value. Alkali-soluble polyester (COPET) is the common sea component of PVA to be removed by alkali decrement method that will cause environmental pollution. Polyvinyl alcohol (PVA) is expected to replace COPET as the sea component to solve environmental pollution, because it is green, non-toxic and water-soluble.
Method Due to amounts of strong intermolecular/intramolecular hydrogen bonds of PVA, the melting point is approximate to the thermal decomposition temperature, which leads to difficulty for melt processing. Modified PVA with high thermal decomposition temperature was prepared by melt blending with compound plasticizers, which consisted of dipentaerythritol, calcium stearate and irganox B225. The effects of compound plasticizers on thermal properties and fluidity of PVA were investigated by DSC, TG and melt flow rate. The suitable processing temperature of PVA was obtained by torque rheometer. The intermolecular hydrogen bonds, crystallinity and compatibility of modified PVA were analyzed by FT-IR, XRD and SEM.
Results The melt-forming property and thermostability of PVA were improved obviously via introducing compound plasticizers. When the contents of dipentathritol, calcium stearate and irganox B225 were 15%, 3%, and 1%, respectively, the thermal decomposition temperature of modified PVA was up to 301.3 ℃ and the melting point reduced to 178.2 ℃ (Fig. 1, Fig. 3 and Fig. 5), providing a thermal processing window of 123.1 ℃. The modified PVA showed a transparent appearance due to its good melt fluidity and outstanding oxidation resistance (Fig. 2, Fig. 4 and Fig. 6). The plasticization and melt fluidity of modified PVA were significantly enhanced with the increase of melting processing temperature (ranging from 195 to 210 ℃). Obviously, when the processing temperature reached up to 200 ℃, the modified PVA could be well plasticized (Tab. 2). The compound plasticizers could effectively destroy the intramolecular and/or intermolecular hydrogen bonds of PVA and reconstructed the fresh hydrogen bonds with PVA, reflected by the shift of absorption peak (Fig. 7). Interestingly, the compound plasticizers improved greatly the activity of PVA molecular chain, thereby reducing its crystallinity (Fig. 8). Addition, the cross section of the modified PVA was observed by scanning electron microscope (SEM). There were almost no obvious plasticizer particles precipitation, and some tiny particles were dispersed uniformly in PVA matrix without agglomeration, which indicated good compatibility between the composite plasticizers and PVA (Fig. 9). Furthermore, the resulting modified PVA could still be melt extruded smoothly at 250 ℃, which provided feasibility for melt composite spinning with PET. Particularly, it is unexpected that the modified PVA could be dissolved at 25 ℃ (Tab. 3), which demonstrates good water solubility, creating many opportunities for the subsequent alkali-free fiber opening process of sea-island fiber.
Conclusion The modified PVA was prepared by melting process and its compound plasticizer composed of dipentaerythritol, calcium stearate and irganox B225.The effects of compound plasticizers and processing temperature on the properties of PVA were investigated to optimize its plasticizing modification process. The compound plasticizers can effectively destroy the hydrogen bonds among PVA molecules and enhance the activity of PVA molecular chain to reduce its crystallinity and melting point. Meanwhile, the fresh hydrogen bonds between PVA and the compound plasticizer enhance the stability of PVA hydroxyl group, thereby improving the thermal stability of PVA. In conclusion, the modified PVA has excellent thermostability and melt fluidity as well as water solubility, providing reference and technical support for the preparation of sea-island fiber with PVA as the sea component.

Key words: polyvinyl alcohol, melt processing, high thermal decomposition temperature, plasticizing modification, water solubility, sea-island fiber

CLC Number: 

  • TQ325.9

Tab. 1

Samples parameter table"

样品编号 m(PVA ):m(双季戊四醇):
m(硬脂酸钙):m(抗氧剂B225 )
1# 100:7.5:3:1
2# 100:10:3:1
3# 100:12.5:3:1
4# 100:15:3:1
5# 100:17.5:3:1
6# 100:20:3:1
7# 100:15:0:1
8# 100:15:1:1
9# 100:15:2:1
10# 100:15:4:1
11# 100:15:5:1
12# 100:15:3:0
13# 100:15:3:0.5
14# 100:15:3:0.75
15# 100:15:3:1.25
16# 100:15:3:1.5

Fig. 1

DSC(a) and TG(b) curves of PVA and modified PVA with different contents of dipentaerythritol"

Fig. 2

Effect of dipentaerythritol content on melt flow rate of modified PVA"

Fig. 3

DSC(a) and TG(b) curves of PVA and modified PVA with different calcium stearate contents"

Fig. 4

Effect of calcium stearate content on modified PVA melt flow rate"

Fig. 5

DSC(a) and TG(b) curves of PVA and modified PVA with different antioxidant contents"

Fig. 6

Appearance comparison of modified PVA particles with different antioxidant mass ratios"

Tab. 2

Influence of processing temperature on machining performance of modified PVA"

加工温
度/℃		 转速/
(r·min-1)		 塑化转矩/
(N·m)		 平衡转矩/
(N·m)		 开始熔融
时间/min		 塑化时
间/min
195 50 18.31 15.94 1.67 2.63
200 50 17.27 14.76 1.52 2.41
205 50 15.69 13.73 1.40 2.23
210 50 14.81 13.12 1.35 2.11

Fig. 7

FT-IR spectra of PVA and modified PVA"

Fig. 8

XRD patterns of PVA and modified PVA"

Fig. 9

SEM images of PVA(a)and modified PVA(b)"

Tab. 3

Water solubility of modified PVA (4#)"

样品质量/g 水量/mL 水温/℃ 溶解时间/min
1 100 25 97
1 100 40 70
1 100 50 58
1 100 60 41
1 100 70 32
[1] 高阳俊. 海岛型超细复合纤维开纤剥离废水资源化技术研究[D]. 上海: 东华大学, 2006:10-24.
GAO Yangjun. Research on the resource recovery from island-sea fabric alkaline hydrolysis wastewater[D]. Shanghai: Donghua University, 2006:10-24.
[2] 俞小春, 陈少鹏, 林金平, 等. 海岛纤维结构形态与染色性能的研究[J]. 厦门大学学报(自然科学版), 2007(1): 67-71.
YU Xiaochun, CHEN Shaopeng, LIN Jinping, et al. Study on structural morphology and dyeing properties of sea-island Fibers[J]. Journal of Xiamen Univer-sity(Natural Science), 2007(1): 67-71.
[3] 许守清. 海岛纤维水溶性聚酯的制备技术[J]. 安徽科技, 2015(10): 41-42.
XU Shouqing. Preparation technology of sea-island fiber water-soluble polyester[J]. Anhui Science & Technology, 2015(10): 41-42.
[4] 杨文娟, 郭秉臣. 海岛纤维碱减量法溶解海组分[J]. 产业用纺织品, 2005(4): 26-29.
YANG Wenjuan, GUO Bingchen. Sea-island fiber alkali reduction method to dissolve sea components[J]. Technical Textiles, 2005(4): 26-29.
[5] 曹意, 陈韶娟, 尹德河, 等. 碱溶性涤纶/锦纶6海岛纤维各组分性能解析[J]. 纺织学报, 2018, 39(9): 15-21.
CAO Yi, CHEN Shaojuan, YIN Dehe, et al. Analysis on components properties of alkali-soluble polyester/polyamide 6 sea island fiber[J]. Journal of Textile Research, 2018, 39(9): 15-21.
doi: 10.1177/004051756903900103
[6] 白红军. 改性聚乙烯醇新型纺丝工艺研究[D]. 北京: 北京服装学院, 2014:11-36.
BAI Hongjun. Study on modified poly(vinyl alcohol) fibers prepared by a new kind of spinning[D]. Beijing: Beijing Institute of Fashion Technology, 2014:11-36.
[7] LI F Y, XIA H S. Dopamine-functionalized poly(vinyl alcohol) elastomer with melt processability and self-healing properties[J]. Journal of Applied Polymer Science, 2017. DOI: 10.1002/app.45072.
doi: 10.1002/app.45072
[8] 周海霞. 水溶性聚酯海岛纤维的研究[D]. 上海: 东华大学, 2004:1-48.
ZHOU Haixia. The study of water-solubility polyester sea-island fiber[D]. Shanghai: Donghua University, 2004:1-48.
[9] LU H W, ZOU L M, XU Y J, et al. Preparation and study of poly vinyl alcohol/hyperbranched polylysine fluorescence fibers via wet spinning[J]. Materials Research Express, 2018. DOI :10.1088/2053-1591/aaaedc.
doi: 10.1088/2053-1591/aaaedc
[10] ZHU Y, WU C X, ZHANG Y W, et al. Study on the chain entanglement of polyvinyl alcohol fiber during the dry-jet wet spinning process[J]. Fibers and Polymers, 2015, 16(2): 345-353.
doi: 10.1007/s12221-015-0345-x
[11] 管福成, 郭静, 吕丽华, 等. 聚乙烯醇/磷虾蛋白纤维的氢键作用机制及其性能[J]. 纺织学报, 2020, 41(10): 7-13.
GUAN Fucheng, GUO Jing, LÜ Lihua, et al. Hydrogen bonding mechanism and properties of polyvinyl alcohol/krill protein fibers[J]. Journal of Textile Research, 2020, 41(10): 7-13.
[12] 俞昊, 周腾飞, 黄涛, 等. 水溶性聚乙烯醇的熔融纺丝[J]. 合成纤维, 2013, 42(8): 17-20.
YU Hao, ZHOU Tengfei, HUANG Tao, et al. Melt spinning of water-soluble polyvinyl alcohol[J]. Synthetic Fiber in China, 2013, 42(8): 17-20.
[13] 董振峰, 王锐, 李革, 等. LDPE/PA6海岛复合超细纤维的可纺性及性能研究[J]. 合成纤维工业, 2014, 37(4): 15-18.
DONG Zhenfeng, WANG Rui, LI Ge, et al. Spinnability and properties of LDPE/PA6 sea-island composite superfine fiber[J]. China Synthetic Fiber Industry, 2014, 37(4): 15-18.
[14] 王雷, 陈俊伟, 任凤梅, 等. 增塑剂改性聚乙烯醇的熔融加工性能研究[J]. 塑料科技, 2012, 40(11): 53-56.
WANG Lei, CHEN Junwei, REN Fengmei, et al. Study on melting processing properties of the modified polyvinyl alcohol with plasticizers[J]. Plastics Science and Technology, 2012, 40(11): 53-56.
[15] CHEN G, CHEN N, LI L, et al. Ionic liquid modified poly(vinyl alcohol) with improved thermal processability and excellent electrical conductivity[J]. Industrial & Engineering Chemistry Research, 2018, 57(15): 5472-5481.
doi: 10.1021/acs.iecr.8b00157
[16] XU Y J, XU Y Q, SUN C K, et al. The preparation and characterization of plasticized pva fibres by a novel glycerol/pseudo ionic liquids system with melt spinning method[J]. European Polymer Journal, 2020. DOI:10.1016/j.eurpolymj.2020.109768.
doi: 10.1016/j.eurpolymj.2020.109768
[17] 麻聪. 聚乙烯醇的增塑改性研究[D]. 上海: 东华大学, 2017: 18-43.
MA Cong. Study on plasticization of polyvinyl alco-hol[D]. Shanghai: Donghua University, 2017: 18-43.
[18] 唐龙祥, 张瑜, 刘春华, 等. 复合增塑体系对聚乙烯醇加工性能的影响[J]. 合成树脂及塑料, 2010, 27(4): 38-40.
TANG Longxiang, ZHANG Yu, LIU Chunhua, et al. Influence of compound plasticizing system on processing properties of polyvinyl alcohol[J]. China Synthetic Resin and Plastics, 2010, 27(4): 38-40.
[19] 李发勇, 谢东, 沈华艳, 等. 聚甘油增塑改性聚乙烯醇复合膜性能研究[J]. 塑料科技, 2019, 47(7): 70-73.
LI Fayong, XIE Dong, SHEN Huayan, et al. Study on properties of PVA film plasticized by polyglycerol[J]. Plastics Science and Technology, 2019, 47(7): 70-73.
[20] 张纪成. 聚乙烯醇的熔融加工性能研究[D]. 合肥: 合肥工业大学, 2013: 1-56.
ZHANG Jicheng. Studies on melt-processing properties of polyvinyl alcohol[D]. Hefei: Hefei University of Technology, 2013: 1-56.
[21] 陈金爱, 马玫, 苑丽红. 塑料中增塑剂迁移测试方法的研究进展[J]. 合成材料老化与应用, 2008, 37(4): 21-26, 47.
CHEN Jinai, MA Mei, YUAN Lihong. Research progress on test methods on migration of plasticisers in plastics[J]. Synthetic Materials Aging and Application, 2008, 37(4): 21-26, 47.
[22] 朱晓翔. 环保型增塑剂的合成及其对橡胶增塑作用的研究[D]. 广州: 华南理工大学, 2017: 24-29.
ZHU Xiaoxiang. Synthesis of environmental plasticizerand its plasticization study in rubber[D]. Guangzhou: South China University of Technology, 2017: 24-29.
[23] 吴建亭. 涤纶海岛纤维生产工艺分析[J]. 聚酯工业, 2011, 24(1): 33-35.
WU Jianting. Analysis on the production process of polyester sea-island fiber[J]. Polyester Industry, 2011, 24(1): 33-35.
[1] XING Jian, ZHANG Shucheng, YU Tianjiao, TANG Wenbin, WANG Liang, XU Zhenzhen, LIANG Botao. Research progress in recycling of waste polyphenylene sulfide fibers [J]. Journal of Textile Research, 2023, 44(04): 222-229.
[2] LI Fang, PAN Hang, ZHANG Yaopeng, MA Huijie, SHEN Chensi. Efficient removal of polyvinyl alcohol and synergistic reduction of Cr(VI) from textile wastewater [J]. Journal of Textile Research, 2023, 44(03): 147-157.
[3] ZHOU Linghui, ZENG Pei, LU Yao, FU Shaoju. Study on composite acoustic material of polyvinyl alcohol nanofiber membrane and Milano rib knit fabric [J]. Journal of Textile Research, 2023, 44(03): 73-78.
[4] XIE Kaifang, LUO Fengxiang, BAO Xinjun, ZHOU Hengshu, XU Guangbiao. Preparation and performance of composite coated polyester harness cord with high wearability [J]. Journal of Textile Research, 2022, 43(03): 123-131.
[5] JIANG Sheng, JI Limei. Polyvinyl alcohol as reinforcement in damping composites consisting of chlorinated polyethylene and hindered phenol [J]. Journal of Textile Research, 2021, 42(04): 55-61.
[6] GUAN Fucheng, GUO Jing, LÜ Lihua, TAN Qian, SONG Jingxing, ZHANG Xin. Hydrogen bonding mechanism and properties of polyvinyl alcohol/krill protein fibers [J]. Journal of Textile Research, 2020, 41(10): 7-13.
[7] SHEN Yanqin, YANG Shu, WU Hailiang, WANG Zhongliang. Research progress of medium and low temperature water-soluble textile starch size [J]. Journal of Textile Research, 2019, 40(06): 142-151.
[8] . Chitosan based nanofiber drug loaded system and its sustained release behavior [J]. Journal of Textile Research, 2018, 39(12): 7-12.
[9] . Preparation and characterization of silk fibroin /polyvinyl alcohol composite membrane [J]. Journal of Textile Research, 2018, 39(11): 14-19.
[10] . Preparation and properties of high strength and anti-aging geotextile [J]. JOURNAL OF TEXTILE RESEARCH, 2018, 39(01): 66-70.
[11] . Synthesis and properties of water soluble quaternary ammonium cationic starch sizing materials [J]. JOURNAL OF TEXTILE RESEARCH, 2017, 38(11): 73-78.
[12] . Influence of size compatibility on mechanical properties of blended size films [J]. JOURNAL OF TEXTILE RESEARCH, 2017, 38(10): 65-69.
[13] . Research progress and plasticization effect of polar plasticizers for starch sizing agents [J]. JOURNAL OF TEXTILE RESEARCH, 2017, 38(04): 171-176.
[14] . Molecular interactions and characterization of sodium alginate / antarctic krill protein / polyvinyl alcohol composite fiber [J]. JOURNAL OF TEXTILE RESEARCH, 2017, 38(02): 7-13.
[15] . Simulation of dry spinning of PVA soluble fiber [J]. JOURNAL OF TEXTILE RESEARCH, 2013, 34(2): 23-27.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
No Suggested Reading articles found!
京ICP备14006648号
Copyright 2021 © Editorial office of Journal of Textile Research
Supported by Beijing Magtech Co.Ltd