孙金陆,甄卫军

• 1:石油天然气精细化工教育部(自治区)重点实验室
• 2:新疆大学化学与化工学院

摘要(Abstract)：

采用微波水解法制备ZnO柱撑皂石,通过十六烷基三甲基溴化铵(CTAB)有机改性制备ZnO柱撑有机皂石,并以其为助剂通过熔融插层法制备了聚乳酸(PLA)/ZnO柱撑有机皂石纳米复合材料.X射线衍射(XRD)及红外光谱分析(FT-IR)表明皂石层状结构被剥离形成了纳米级皂石层片且有机改性效果良好.采用Avrami法对PLA/ZnO柱撑有机皂石纳米复合材料的非等温结晶动力学进行了分析,结果表明:ZnO柱撑有机皂石缩短了PLA的半结晶周期(t1/2),提高了PLA的结晶速率,PLA晶体以二维或三维的方式增长.

关键词(KeyWords)： 聚乳酸;ZnO柱撑有机皂石;纳米复合材料;非等温结晶

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(51163013)

作者(Author): 孙金陆,甄卫军

参考文献(References)：

• [1]魏俊超,王丽娜,周魏华,等.一种成核剂对聚乳酸结晶行为的影响[J].应用化工,2011,40(10):1709-1713.
• [2]Mehta R,Kumar V,Bhunia H,et al.Synthesis of poly(lactic acid):a review[J].Journal of Macromolecular Science,Part C:Polymer Review,2005,45(4):325-349.
• [3]Zhao Y M,Wang Z Y,Wang J,et al.Direct synthesis of poly(D,L-lactic acid)by melt polycondensation and its application in drug delivery[J].Journal of Applied Polymer Science,2004,91(4):2143-2150.
• [4]Hur S G,Kim T W,Hwang S-J,et al.Heterostructured nanohybrid of Znic oxide-montmorillonite clay[J].J.Phys.Chem.B,2006,110(4):1599-1604.
• [5]Kawamoto N,Sakai A,Horikoshi T,et al.Nucleating agent for poly(L-lactic acid)—an optimization of chemical structure of hydrazide compound for advanced nucleation ability[J].Journal of Applied Polymer Science,2007,103(1):198-203.
• [6]Urayamaa H,Kanamori T,Fukushima K,et al.Controlled crystal nucleation in the melt-crystallization of poly(Llactide)/poly(D-lactide)stereocomplex[J].Polymer,2003,44(19):5635-5641.
• [7]吴亮,吴德峰,吴兰峰,等.聚乳酸/粘土纳米复合材料的冷结晶及熔融行为[J].高分子材料科学与工程,2007,23(5):124-127.
• [8]Zhen W,Lu C,Li C,et al.Structure and properties of thermoplastic saponite/poly(vinyl alcohol)nanocomposites[J].Applied Clay Science,2012,57,64-70.
• [9]Ogata K,Maejima K,Fujita S,et al.Growth mode control of ZnO toward nanorod structures or high-quality layered structures by metal-organic vapor phase epitaxy[J].Journal of Crystal Growth,2003,248,25-30.
• [10]Kitano M,Hamabe T,Maeda S.Growth of large tetrapod-like ZnO crystals:I.Experimental considerations on kinetics of growth[J].Journal of Crystal Growth,1990,102,965-973.
• [11]Fons P,Iwata K,Yamada A,et al.Uniaxial locked epitaxy of ZnO on the a face of sapphire[J].Applied Physics Letters,2000,77,1081-1083.
• [12]Li J,Zhen W.Preparation,properities and structure characterization of poly lactic acid/zinc oxide pillared saponite nanocomposites[J].Acta Polymerica Sinica,2013(4):534-541.
• [13]Majdana M,Maryuka O,Pikusa S,et al.Equilibrium,FTIR,scanning electro microscopy and small wide angle X-ray scattering studies of chromates adsorption on modified bentonite[J].Journal of Molecular Structure,2005,(740):203-211.
• [14]祁新萍.有机蒙脱土功能材料制备、表征及性能研究[D],乌鲁木齐:新疆大学,2006.
• [15]田怡.增塑聚乳酸结晶动力学和流动性能的研究[D],杭州:浙江工业大学,2006.
• [16]Cebe P,Hong S D.Crystallization behaviour of poly(ether-eyher-ketone)[J].Polymer,1986,27,1183-1192.
• [17]Hay J N,Sabir M.Crystallization kinetics of high polymers-Polyethylene oxide-PartⅡ[J].Polymer,1969,10,203-211.
• [18]Avrami M.Kinetics of phase change-Ⅱ:Transformation-time relations for random distribution of nuclei[J].J Chem Phys.1940,8,212-224.
• [19]Jeziorny A.Parameters characterizing the kinetics of the non-isothermal crystallization of poly(ethylene terephthalate)determined by DSC[J].Polymer,1978,19,1142-1144.
• [20]Gopakumar T G,Lee J A,Kontopoulou M,et al.Influence of clay exfoliation on the physical properties of montmorillonite/polyethylene composites[J].Polymer,2002,43(20):5483-5491.
• [21]胡德富.聚乳酸结晶、熔融行为以及无序-有序相转变[D].郑州:郑州大学,2009.