期刊文献+

亚磷酸三苯酯对聚乳酸结晶性能的影响

Effect of Triphenylphosphite on Crystallization Behavior of Poly(lactic acid)
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摘要 采用偏光显微镜和差示扫描量热仪分别对亚磷酸三苯酯(TPP)扩链聚乳酸(PLA)的结晶形态和结晶过程进行表征,并采用莫至深法对PLA的结晶动力学过程进行研究。结果表明,TPP的扩链引入并没有改变PLA的结晶形态,仍然保持为球状晶体;TPP的引入大大提高了PLA的结晶能力,使其冷结晶温度(Tcc)从115.4℃降低到102.8℃,相对结晶度从30.2%提高到34.9%;莫至深法适合PLA结晶动力学过程的研究,TPP的引入使得PLA的F(T)值大大降低。 In this paper, the effect of triphenylphosphite(TPP) on the crystal morphology and crystallization process of poly (lactic acid)(PLA) was investigated using polarizing microscopy (PLM) and differential scanning calorimetry (DSC). The crystallization kinetics was analyzed by the method of Mo. It showed that, firstly, the addition of TPP didn' t change the crystal morphology of PLA, and the crystal geometry of TPP-PLA was still spherical. Then, TPP decreased the cold-crystallization temperature(Toe) of PLA from 115.4 to 102.8℃, and increased the crystalline degree from 30. 2 % to 34. 9 %. Mo's F(T) values of TPP-PLA decreased obviously.
出处 《中国塑料》 CAS CSCD 北大核心 2015年第8期42-47,共6页 China Plastics
基金 中央高校基本科研业务费专项基金(222201313006 WA1214051) 上海高校实验技术队伍建设计划
关键词 聚乳酸 亚磷酸三苯酯 冷结晶 结晶形态 结晶动力学 poly(lactic acid) triphenyl phosphite cold crystallization crystal morphology crystalli- zation kinetics
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  • 1Chen G Q, Patel M K. Plastics Derived 'From Biological Sources: Present and Future: A Technical and Environ- mental Review[J]. Chemical Reviews, 2011, 112 ( 4 ) : 2082-2099.
  • 2亚泰中研.中国可降解塑料行业市场供需预测报告2015-2022年[R].北京:北京亚泰中研信息咨询有限公司,2015:15-16.
  • 3Najafi N, Heuzey M C, Carreau P J. Crystallization Be- havior and Morphology of Polylactide and PLA/Clay Nanocomposites in the Presence of Chain Extenders[J]. Polymer Engineering and Science,2012, (10) : 1-12.
  • 4Speranza V,DeMeo A,Pantani R. Thermal and Hydrolytic Degradation Kinetics of PLA in the Molten State[J]. Poly- mer Degradation and Stability, 2014,100 : 37-41.
  • 5Najafi N, Heuzey M C, Carreau P J, et al. Control of Ther- mal Degradation of Polylactide (PLA)-Clay Nanocompo- sites using Chain Extenders[J]. Polymer Degradation and Stability, 2012,97 : 554-565.
  • 6John A Ciceroa, John R Dorgana, Steven F Decb, et al. Phosphite Stabilization Effects on Two-step Melt-spun Fi- bers of Polylactide[J]. Polymer Degradation and Stability, 2002,78: 95-105.
  • 7Grijpma D W, Pennings A J. (Co)polymers of L-lactide, 1. Synthesis,Thermal Properties and Hydrolytic Degrada- tion[J]. Macromolecular Chemistry and Physics, 1994,195 (5):1633-1647.
  • 8Serap Gumus, Guralp Ozkoc, Ayse Aytac. Plasticized and Unplasticized PLA/Organoclay Nanocomposites: Short- and Long-Term Thermal Properties, Morphology, and Nonisothermal Crystallization Behavior[J]. Journal of Ap- plied Polymer Science, 2012 (123) : 2837-2848.
  • 9Zhang J M, Tashiro K, Tsuji H, et al. Disorder-to-Order Phase Transition and Multiple Melting Behavior of Poly (L-lactide) Investigated by Simultaneous Measurements of WAXD and DSC [J]. Macromolecules, 2008, 41 (4) : 1352-1357.
  • 10Pan P J,Kai W H,Zhu B, et al. Polymorphie Transition in Disordered Poly(L-lactide) Crystals Induced by An- nealing at Elevated Temperatures [ J ]. Macromolecules, 2008,41(12) : 4296-4304.

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