[1]杨敏蕊,肖 薇,罗春燕,等.不同分子量PCL/PLLA共混物的结晶行为研究[J].西安工业大学学报,2019,(03):241-247.[doi:10.16185/j.jxatu.edu.cn.2019.03.001]
 YANG Minrui,XIAO Wei,LUO Chunyan,et al.Crystallization Behavior of PCL/PLLA Blends with Different Molecular Weight[J].Journal of Xi’an Technological University,2019,(03):241-247.[doi:10.16185/j.jxatu.edu.cn.2019.03.001]
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不同分子量PCL/PLLA共混物的结晶行为研究()
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《西安工业大学学报》[ISSN:1673-9965/CN:61-1458/N]

卷:
期数:
2019年03期
页码:
241-247
栏目:
出版日期:
2019-06-20

文章信息/Info

Title:
Crystallization Behavior of PCL/PLLA Blends with Different Molecular Weight
文章编号:
1673-9965(2019)03-0241-07
作者:
杨敏蕊肖 薇罗春燕陈卫星杨晶晶
(西安工业大学 材料与化工学院,西安 710021)
Author(s):
YANG MinruiXIAO WeiLUO ChunyanCHEN WeixingYANG Jingjing
(School of Materials and Chemical Engineering,Xi’an Technological University,Xi’an 710021,China)
关键词:
左旋聚乳酸 聚己内酯 共混 结晶行为 相分离
Keywords:
Poly(L-lactic acid) Poly(ε-caprolactone) blend crystallization behavior phase separation
分类号:
O64
DOI:
10.16185/j.jxatu.edu.cn.2019.03.001
文献标志码:
A
摘要:
为了研究不同分子量PCL/PLLA共混物结晶行为,文中以二氯甲烷为溶剂对左旋聚乳酸(PLLA)与聚己内酯(PCL)进行溶液共混,制备不同质量比的PCL/PLLA共混物,并利用热台偏光显微镜(POM)和差示扫描量热仪(DSC)对共混物的结晶行为及结晶形貌进行表征与分析。实验结果表明:在PLLA10k中加入PCL2k和PCL10k,PCL的质量分数为10%~20%时对PLLA10k的结晶能力有促进作用; PCL2k/PLLA25k共混物中,随着PCL2k质量分数的增大,促进作用逐渐减小; 加入PCL15k后对PLLA25k的结晶能力没有促进作用。POM结果表明,加入PCL后共混物的结晶速率降低,PCL不利于PLLA球晶生长速率的提高,并且PCL10k与PLLA10k共混时会发生宏观的相分离现象。
Abstract:
The paper studies the crystallization behavior of PCL/PLLA blends with different molecular weights.The PCL/PLLA blends with different mass ratios were prepared with dichloromethane as the solvent.Their crystallization behavior and crystal morphology were characterized by using a hot stage polarizing microscope(POM)and a differential scanning calorimeter(DSC).The experimental results show that adding PCL2k and PCL10k to PLLA10k can improve the crystallization ability of PLLA10k when the mass fraction of PCL is 10%~20%.In PCL2k/PLLA25k blends,the accelerating effect decreases gradually with the increase of PCL2k mass fraction.The addition of PCL15k can not promote the crystallization ability of PLLA25k.The POM result shows that the crystallization rate of the blends decreases after adding PCL,indicating that PCL is not conducive to the increase of PLLA’s spherulite growth rate.In addition,macro phase separation occurred when PCL10k was blended with PLLA10k.

参考文献/References:

[1] 杨斌.绿色塑料聚乳酸[M].北京:化学工业出版社,2007. YANG Bin.Green Plastic Polylactic Acid[M].Beijing:Chemical Industry Press,2007.(in Chinese)
[2] 曹燕琳,尹静波,颜世峰.生物可降解聚乳酸的改性及其应用研究进展[J].高分子通报,2006,84(10):90. CAO Yanlin,YIN Jingbo,YAN Shifeng.Biodegradable Polylactide Modification and Its Application Research Progress[J].Polymer Bulletin,2006,84(10):90.(in Chinese)
[3] 吴选军,袁继祖,余永富,等.聚乳酸/聚乙二醇共混材料的性能研究[J].武汉工程大学学报,2009,31(5):60. WU Xuanjun,YUAN Jizu,YU Yongfu,et al.Study on Properties of PLLA/PEG Blends[J].Journal of Wuhan University of Technology,2009,31(5):60.(in Chinese)
[4] JING Z,SHI X,ZHANG G.Rheology and Crystallization Behavior of Asymmetric PLLA/PDLA BlendsBased on Linear PLLA and PDLA with Different Structures[J].Polymers for Advanced Technologies,2016,27(8):1108.
[5] TSUJI H.Poly(lactide)Stereocomplexes:Formation,Structure,Properties,Degradation,and Applications[J].Macromolecular Bioscience,2007,7(12):1299.
[6] WEI X F,BAO R Y,CAO Z Q,et al.Stereocomplex Crystallite Network in Asymmetric PLLA/PDLA Blends:Formation,Structure,and Confining Effect on the Crystallization Rate of Homocrystallites[J].Macromolecules,2012,47(4):1439.
[7] 肖薇,陈卫星,罗春燕,等.低分子量PDLA/PLLA共混物结晶行为研究[J].西安工业大学学报,2017,37(12):899. XIAO Wei,CHEN Weixing,LUO Chunyan,et al.Crystallization Behavior of PDLA/PLLA Blends with Low Molecular Weight.[J].Journal of Xi’an University of Technology,2017,37(12):899.(in Chinese)
[8] LIU Z B,HU D,HUANG L,et al.Simultaneous Improvement in Toughness,Strength and Biocompatibility of Poly(lactic acid)with Polyhedral Oligomeric Silsesquioxane[J].Chemical Engineering Journal,2018,346(3):649.
[9] LUO C,YANG M,XIAO W,et al.Relationship between the Crystallization Behavior of Poly(ethylene glycol)and Stereocomplex Crystallization of Poly(L-lactic acid)/Poly(D-lactic acid)[J].Polymer International,2018,67(3):313.
[10] 宋鑫月,朱光明,王宗瑶,等.聚己内酯的制备及改性研究进展[J].中国胶粘剂,2016,25(4):52. SONG Xinyue,ZHU Guangming,WANG Zongyao,et al.Reasearch Progress of Preparation and Modification of PCL[J].Chinese adhesive,2016,25(4):52.(in Chinese)
[11] GUSTAFSSON G,NISHIDA M,ITO Y,et al.Mechanical Characterization and Modelling of the Temperature-dependent Impact Behaviour of a Biocompatible Poly(L-lactide)/Poly(ε-caprolactone)Polymer Blend[J].Journal of the Mechanical Behavior of Biomedical Materials,2015,51(6):279.
[12] LI Y Y,DIAO T,SONG P,et al.Star-Shaped PCL/PLLA Blended Fiber Membrane Via Electrospinning[J].Journal of Biomaterials Science Polymer Edition,2015,26(7):420.
[13] KOUYA T,TADA S I,MINBU H,et al.Microporous Membranes of PLLA/PCL Blends for Periosteal Tissue Scaffold[J].Materials Letters,2013,95(3):103.
[14] LIU Y Y.Preparation and Oil-Water Separation Performance of Polylactide/Polycaprolactone(PLLA/PCL)Composite Spherulitic Porous Material[J].China Sciencepaper,2015,10(8):2191.
[15] VILAY V,MARIATTI M,AHMAD Z,et al.Improvement of Microstructures and Properties of Biodegradable PLLA and PCL Blends Compatibilized with a Triblock Copolymer[J].Materials Science & Engineering A,2010,527(26):6930.
[16] KIM C,CHO K Y,CHOI E,et al.Effect of P(ILA-co-εCL)on the Compatibility and Crystallization Behavior of PCL/PLLA Blends[J].Journal of Applied Polymer Science,2015,77(1):226.

备注/Memo

备注/Memo:
收稿日期:2018-05-30基金资助:国家自然科学基金青年基金项目(21506167; 51603164); 陕西省教育厅科研计划项目资助(18JK0390; 15JK1354); 西安工业大学校长基金项目(XAGDXJJ18007)。第一作者简介:杨敏蕊(1994-),女,西安工业大学硕士研究生。通信作者简介:罗春燕(1981-),女,西安工业大学副教授,主要研究方向为聚合物结晶行为,E-mail:luochunyan@xatu.edu.cn。引文格式:杨敏蕊,肖薇,罗春燕,等.不同分子量PCL/PLLA共混物的结晶行为研究[J].西安工业大学学报,2019,39(3):241-247.YANG Minrui,XIAO Wei,LUO Chunyan,et al.Crystallization Behavior of PCL/PLLA Blends with Different Molecular Weight[J].Journal of Xi’an Technological University,2019,39(3):241-247.
更新日期/Last Update: 2019-06-20