等温结晶聚对苯二甲酸丙二酯的晶体形态和熔融行为

高分子材料科学与工程, 2010, 26(9): 49-51.

等温结晶聚对苯二甲酸丙二酯的晶体形态和熔融行为

闰明涛 ^1, , 李刚 ^2, , 郭丽洁 ^3, , 李鑫 ^4, , 孙立立 ^5, , 崔福员 ^6,

1.河北大学化学与环境科学学院,河北,保定,071002

2.河北大学化学与环境科学学院,河北,保定,071002

3.河北大学化学与环境科学学院,河北,保定,071002

4.河北大学化学与环境科学学院,河北,保定,071002

5.河北大学化学与环境科学学院,河北,保定,071002

6.河北大学化学与环境科学学院,河北,保定,071002

基金项目: 河北省自然科学基金资助项目(B2007000148) 河北大学博士基金(Y06065)

关键词：聚对苯二甲酸丙二酯 , 环带球晶 , 偏光显微镜 , 熔融 , 结晶

Crystal Morphology and Melting Behavior of the Isothermally Crystallized Poly(Trimethylene Terephthalate)

采用偏光显微镜和原子力显微镜研究了在特定温度下聚对苯二甲酸丙二酯的晶体形态和熔融行为.结果表明,聚对苯二甲酸丙二酯(PTT)的结晶形态依赖于结晶温度,在不同等温结晶温度下球晶依照元环带→规则环带→锯齿形环带→无环带的规律逐渐改变;环带宽度也随结晶温度的升高而增加.环带球晶在加热过程中熔融并伴随着环带的变化,由于晶片的熔融再结晶,环带形态经历了清晰→模糊→清晰→融化的渐变过程.

参考文献

[1]	Wang BJ.;Hanzlicek J.;Cheng SZD.;Geil PH.;Grebowicz J.;Ho RM.;Li CY. .Poly(trimethylene teraphthalate) crystal structure and morphology in different length scales[J].Polymer: The International Journal for the Science and Technology of Polymers,2001(16):7171-7180.
[2]	Chen XD;Hou G;Chen YJ;Yang K;Dong YP;Zhou H .Effect of molecular weight on crystallization, melting behavior and morphology of poly(trimethylene terephalate)[J].Polymer Testing,2007(2):144-153.
[3]	Ho RM.;Chen M.;Ke KZ. .Crystal structure and banded spherulite of poly(trimethylene terephthalate)[J].Macromolecules,2000(20):7529-7537.
[4]	Run, MT;Hao, YP;Song, HZ;Hu, XM .Spherulite Morphology and Thermal Behaviors of Short Carbon Fiber/Poly(Trimethylene Terephthalate) Composites[J].Journal of Macromolecular Science. Physics,2009(1):13-24.
[5]	Mingtao Run;Hongzan Song;Sujuan Wang .Crystal Morphology,Melting Behaviors and Isothermal Crystallization Kinetics of SCF/PTT Composites[J].Polymer Composites,2009(1):87-94.
[6]	RUN Mingtao,SONG Hongzan,WANG Yingjin,YAO Chenguang,GAO Jungang.Studies on the rheological, phase morphologic, thermal and mechanical properties of poly(trimethylene terephthalate)/ethylene propylene diene monomer copolymer grafted with maleic anhydride/metallocene polyethylene blends[J].中国高等学校学术文摘·化学工程,2007(03):238-245.
[7]	Xu J;Guo BH;Zhou JJ;Li L;Wu J;Kowalczuk M .Observation of banded spherulites in pure poly(L-lactide) and its miscible blends with amorphous polymers[J].Polymer: The International Journal for the Science and Technology of Polymers,2005(21):9176-9185.
[8]	Mingtao Run;Chenguang Yao;Yingjin Wang .Nonisothermal Crystallization Behavior and Crystals Morphology of Poly(trimethylene terephthalate)/Nano-Calcium Carbonate Composites[J].Polymer Composites,2008(11):1235-1243.

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材料期刊网

等温结晶聚对苯二甲酸丙二酯的晶体形态和熔融行为

Crystal Morphology and Melting Behavior of the Isothermally Crystallized Poly(Trimethylene Terephthalate)

参考文献