Journal of Textile Research ›› 2020, Vol. 41 ›› Issue (10): 1-6.doi: 10.13475/j.fzxb.20200100606

• Fiber Materials •     Next Articles

Effect of oligomers on crystalline properties of polytrimethylene terephthalate

CHEN Yong1,2, WANG Jingjing2, WANG Chaosheng2, GU Donghua3, WU Jing1(), WANG Huaping1,2   

  1. 1. Co-Innovation Center for Textile Industry, Donghua University, Shanghai 201620, China
    2. College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
    3. Jiangsu Guowang Hi-Tech Fiber Co., Ltd., Suzhou, Jiangsu 215226, China
  • Received:2020-01-06 Revised:2020-07-11 Online:2020-10-15 Published:2020-10-27
  • Contact: WU Jing E-mail:wuj@dhu.edu.cn

RichHTML

4

PDF (PC)

265

Abstract:

Step-polymerization of polymers usually contains a certain proportion of linear and circular oligomers, which will affect the forming process of fiber materials, fiber properties, textile processing and so on. To investigate the influence of oligomers on the crystallization properties of bio-based polytrimethylene terephthalate (PTT), bio-based PTT samples with varied oligomer contents (mainly comprising cyclic dimers) were prepared by adding the extracted oligomers into relatively pure PTT samples. Differential scanning calorimetry analysis was used to study the crystallization kinetics of bio-based PTT polyesters. The results show that the existence of oligomer mainly acts as nucleating agent, and the increase of its mass fraction can significantly increase the crystallization rate, the crystallization temperature and crystallinity of bio-based PTT. When the mass fraction of oligomer is 10%, the crystallization rate constant of PTT increased from 0.528 to 0.603, while the crystallization temperature increased from 172.11 ℃ to 178.85 ℃.

Key words: oligomer, cyclic oligomer, bio-based polyester, polytrimethylene terephthalate, crystallization kinetic

CLC Number: 

  • TQ342

Fig.1

DSC curves of non-isothermal crystallization of bio-based PTT with different oligomer mass fraction"

Fig.2

Relationship between cooling rate and crystallization peak temperature of bio-based PTT with different oligomer mass fraction"

Fig.3

Relation curves of relative crystallinity with time of different oligomer mass fraction bio-based PTT"

Tab.1

Crystallization parameters of bio-based PTT with different oligomer mass fraction at different cooling rates"

降温速率/
(℃·min-1)		 0% 4% 8% 10%
TP △W t1/2 TP △W t1/2 TP △W t1/2 TP △W t1/2
5 172.11 9.80 1.26 173.35 9.72 1.24 173.83 8.15 0.91 178.85 5.58 0.90
10 162.69 13.53 1.60 163.73 13.38 1.55 164.81 7.35 1.21 168.8 6.47 1.20
15 157.02 16.91 2.31 158.55 16.89 2.28 159.46 8.43 1.90 164.49 6.08 1.77
20 151.99 20.46 3.90 153.31 20.16 3.53 157.07 9.55 3.52 161.86 6.41 2.95

Fig.4

Crystalline Avrami curves at different cooling rates of bio-based PTT with different oligomer mass fraction"

Tab.2

Experimental values of crystallization kinetic parameters during non-isothermal processes"

降温速率/
(℃·min-1)		 0% 4% 8% 10%
n Zt Zc n Zt Zc n Zt Zc n Zt Zc
5 1.050 0.041 0.528 1.046 0.063 0.589 1.035 0.071 0.575 1.033 0.079 0.603
10 1.024 0.112 0.803 1.016 0.134 0.817 1.025 0.164 0.834 1.022 0.177 0.841
15 1.037 0.191 0.895 1.018 0.198 0.898 1.025 0.271 0.916 1.024 0.279 0.918
20 1.034 0.264 0.935 1.024 0.272 0.937 1.021 0.380 0.952 1.029 0.300 0.953
[1] 祝爱兰, 任明利. PET中环状齐聚物的研究[J]. 上海化工, 2005,30(5):24-28.
ZHU Ailan, REN Mingli. Study on cyclic oligomers in PET[J]. Shanghai Chemical Industry, 2005,30(5):24-28.
[2] 相东旭. 聚酯纤维低聚物的产生原因、性质及防止[J]. 印染助剂, 2006,23(5):8-10.
XIANG Dongxu. Formation, properties and prevention of oligomers in polyester fibers[J]. Textile Auxiliaries, 2006,23(5):8-10.
[3] 张龙, 智海辉, 郑今欢. 再生聚酯纤维中低聚物的结构表征[J]. 纺织学报, 2015,36(4):25-30.
ZHANG Long, ZHI Haihui, ZHENG Jinhuan. Structure Characterization of oligomers in recycled polyester fabric[J]. Journal of Textile Research, 2015,36(4):25-30.
[4] 赵斌. PET聚酯中齐聚物表征及控制方法研究[D]. 上海: 东华大学, 2008: 24-28.
ZHAO Bin. Study on characterization and content control of oligomers in poly(ethylene tereph-thalate)[D]. Shanghai: Donghua University, 2008: 24-28.
[5] VERMYLEN V, LODEFIER P, DEVAUX J, et al. Study of the thermal evolution of the cyclic,ligomer formation in a cyclic, ligomer-free PET[J]. Journal of Polymer Science Part A: Polymer Chemistry, 2000,38(3):416-422.
doi: 10.1002/(ISSN)1099-0518
[6] 张建强, 张征, 陈鹏, 等. 环状对苯二甲酸丁二酯低聚物CBT的研究进展[J]. 高分子通报, 2016,202(2):56-64.
ZHANG Jianqiang, ZHANG Zheng, CHEN Peng, et al. Progress in cyclic butylene terephthalate oligomers[J]. Polymer Bulletin, 2016,202(2):56-64.
[7] 杨始堃, 陈玉君, 陈显才, 等. 涤纶树脂中环状低聚体的测定及生成机理探讨[J]. 合成纤维工业, 1980,9(2):19-23.
YANG Shikun, CHEN Yujun, CHEN Xiancai, et al. Determination of cyclic oligomers in polyester resin and discussion of formation mechanism[J]. China Synthetic Fiber Industry, 1980,9(2):19-23.
[8] 王彦芳, 李文刚, 刘灯胜, 等. 低聚物对聚酯纤维性能影响的研究[J]. 现代工业经济和信息化, 2018,163(7):54-56.
WANG Yanfang, LI Wengang, LIU Dengsheng, et al. Study on the effect of oligomer on the properties of polyester fiber[J]. Modern Industrial Economy and Informationization, 2018,163(7):54-56.
[9] 吴从意, 陈静. 1,3-丙二醇制备研究进展[J]. 分子催化, 2012,26(3):276-283.
WU Congyi, CHEN Jing. Research progress in the preparation of 1,3-propanediol[J]. Journal of Molecular Catalysis, 2012,26(3):276-283.
[10] WU R, XU Y, LIU D. Progress in down-stream processing of biologically produced 1,3-propanediol[J]. Chinese Journal of Biotechnology, 2011,27(3):493-501.
[11] 沈瑶瑶, 于建荣, 毛开云. 生物基1,3-丙二醇技术开发及产业发展趋势[J]. 生物产业技术, 2014(4):38-43.
SHEN Yaoyao, YU Jianrong, MAO Kaiyun. Bio-based 1,3-propanediol technology development and industry development trend[J]. Biotechnology Business, 2014(4):38-43.
[12] 李汀阳. 新型聚酯纤维PTT的多种功能开发的研究进展[J]. 信息记录材料, 2018,19(1):3-5.
LI Tingyang. Research progress of various functional development of new polyester fiber PTT[J]. Information Recording Materials, 2018,19(1):3-5.
[13] 王启明. 生物基聚酯PTT与PDT的发展概况[J]. 高分子通报, 2013(10):129-135.
WANG Qiming. From PTT to PDT, development of biological based polyester[J]. Polymer Bulletin, 2013(10):129-135.
[14] MIAO S, ZHANG S, SU Z, et al. Synjournal of bio-based polyurethanes from epoxidized soybean oil and isopropanolamine[J]. Journal of Applied Polymer Science, 2013,127(3):1929-1936.
doi: 10.1002/app.37564
[15] CHEN J, WEI W, QIAN Q, et al. The structure and properties of long-chain branching poly(trimethylene terephthalate)[J]. Rheologica Acta, 2014,53(1):67-74.
doi: 10.1007/s00397-013-0737-z
[1] WANG Jingjing, CHEN Yong, WANG Chaosheng, WANG Huaping, BIAN Shuchang, WU Jing. Extraction of oligomers from bio-based propylene terephthalate polyester and its thermal properties [J]. Journal of Textile Research, 2020, 41(06): 1-7.
[2] ZHOU Ling, JIN Xiangyu. Controllability of bead structure in hot air-through bonded nonwovens and crystallization kinetics thereof [J]. Journal of Textile Research, 2019, 40(08): 27-34.
[3] . Nonisothermal crystallization kinetics of novel nylon-carbon chain polyamide 1211 [J]. Journal of Textile Research, 2018, 39(12): 1-6.
[4] . Extraction and characterization of oligomers from high molecular weight poly(ethylene terephthalate) [J]. Journal of Textile Research, 2018, 39(11): 1-7.
[5] . Electrical and mechanical properties of conductive polytrimethylene terephthalate / polyaniline composite yarns [J]. JOURNAL OF TEXTILE RESEARCH, 2017, 38(02): 40-46.
[6] . Crystallization behavior and spherulites morphology of stereocompolexed poly(lactic acid)s with different molecular weights [J]. Journal of Textile Research, 2016, 37(2): 27-34.
[7] . Structure characterization of oligomers in recycled polyester fabric [J]. Journal of Textile Research, 2015, 36(04): 25-30.
[8] . Study on properties of blue light curable polymerization systems applied for textile digital printing [J]. Journal of Textile Research, 2015, 36(02): 121-127.
[9] . Research progress in preparation of PHBV nanofibers by electrospinning [J]. JOURNAL OF TEXTILE RESEARCH, 2014, 35(8): 150-0.
[10] . Influence of oligomer contents on melt spinning process of poly (lactic acid) [J]. JOURNAL OF TEXTILE RESEARCH, 2014, 35(8): 133-0.
[11] LIAN Zhi-jun;PAN Ju-fang;JIANG Yuan;ZHUANG Xiao-xiong . Impurities on surface of cheese dyed polyester yarns and solution [J]. JOURNAL OF TEXTILE RESEARCH, 2010, 31(6): 90-94.
[12] JIANG Yuan;Ju-Fang PAN;Zhi-Jun LIAN;Jing XU. A discussion on properties of white powders yielded during package dyeing of polyester yarns [J]. JOURNAL OF TEXTILE RESEARCH, 2010, 31(5): 24-29.
[13] CHEN Haizhen. Influence of nano-TiO2 on crystallization kinetics of polyester [J]. JOURNAL OF TEXTILE RESEARCH, 2010, 31(4): 25-29.
[14] QIN Li;ZHAO Lihuan;WANG Fumei. Exploration for testing shape memory effects of PTT fabrics [J]. JOURNAL OF TEXTILE RESEARCH, 2009, 30(06): 39-43.
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