低密度聚乙烯/改性锂皂石纳米复合材料的制备及其性能
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摘要
采用水热法制备出锂皂石,通过阳离子交换法对其改性制备出改性锂皂石(LAP-CTAB)。以LAP-CTAB为填料,通过熔融插层法制备了LDPE/LAP-CTAB纳米复合材料,并对其进行表征与测试。结果表明:当LAPCTAB的添加量为1%时,LDPE/LAP-CTAB纳米复合材料的力学性能达到最优,其拉伸强度、断裂伸长率和冲击强度分别提高了9.4%、54.4%和38.4%。此外,LAP-CTAB的加入提高了LDPE基纳米复合材料的热稳定性、流变性、紫外吸收性和阻燃性能。
Laponite was prepared by hydrothermal method and modified by cation exchange method,which was applied to prepare modified laponite(LAP-CTAB).The LDPE/LAP-CTAB nanocomposites were prepared by melt intercalation with LAP-CTAB as filler.Moreover,LDPE/LAP-CTAB nanocomposites were characterized and tested.The results show that when the content of LAP CTAB is 1%,the mechanical properties of LDPE/LAP-CTAB nanocomposites are the best,and the tensile strength,elongation at break and impact strength of LDPE/LAP-CTAB nanocomposites increase by 9.4%,54.4% and 38.4% respectively.In addition,the addition of LAP-CTAB improves the thermal stability,rheological properties,ultraviolet absorption and flame retardancy of LDPEbased nanocomposites.
Laponite was prepared by hydrothermal method and modified by cation exchange method,which was applied to prepare modified laponite(LAP-CTAB).The LDPE/LAP-CTAB nanocomposites were prepared by melt intercalation with LAP-CTAB as filler.Moreover,LDPE/LAP-CTAB nanocomposites were characterized and tested.The results show that when the content of LAP CTAB is 1%,the mechanical properties of LDPE/LAP-CTAB nanocomposites are the best,and the tensile strength,elongation at break and impact strength of LDPE/LAP-CTAB nanocomposites increase by 9.4%,54.4% and 38.4% respectively.In addition,the addition of LAP-CTAB improves the thermal stability,rheological properties,ultraviolet absorption and flame retardancy of LDPEbased nanocomposites.
引文
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[20]熊丽君,钱鑫昌,张兵,等.高抗弯聚丙烯/有机化锂皂石复合材料的制备与性能[J].高分子材料科学与工程,2014,30(6):152-155.
[21]许恩惠,郭前程,陈磊,等.锂皂石分散状态对尼龙6纳米复合材料流变行为的影响[J].高分子材料科学与工程,2015,31(9):69-75.
[22]李斌,孙才英,张秀成.用CONE/TG研究含淀粉膨胀阻燃聚丙烯体系的阻燃和烟释放[J].高分子材料科学与工程,2000,16(5):146-149.
[2]向裕松.浅谈PE管在铁路给水管道运用的优缺点[J].成铁科技,2014(3):17-18.
[3]Pieper H,Bosbach D,Panak P J,et al.Eu(III)coprecipitation with the trioctahedral clay mineral,hectorite[J].Clays&Clay Minerals,2006,54(1):45-53.
[4]Nicolai T,Cocard S.Structure of gels and aggregates of disk-like colloids[J].European Physical Journal E,2001,5(2):221-227.
[5]Porter T L,Pace D,Whitehorse R,et al.Formation of poly(methylmethacrylate)layers on the surface and intergallery regions of Cu2+,Fe3+,and VO2+-exchanged hectorite thin films[J].Materials Chemistry&Physics,2002,76(1):92-98.
[6]Singhal R G,Capracotta M D,Martin J D,et al.Transport properties of hectorite based nanocomposite single ion conductors[J].Journal of Power Sources,2004,128(2):247-255.
[7]Porter T L,Eastman M P,Bain E,et al.Analysis of peptides synthesized in the presence of SAz-1 montmorillonite and Cu(2+)exchanged hectorite[J].Biophysical Chemistry,2001,91(2):115-124.
[8]赵伟安,侯万国,孙德军,等.聚苯乙烯/有机合成锂皂石纳米复合材料的制备与表征[J].应用化学,2003,20(6):606-608.
[9]Timmaraju M V,Gnanamoorthy R,Kannan K.Effect of environment on flexural fatigue behavior of polyamide 66/hectorite nanocomposites[J].International Journal of Fatigue,2011,33(4):541-548.
[10]Shirazi S M,Janghorban K.Investigation of physical and chemical properties of polypropylene hybrid nanocomposites[J].Materials&Design,2012,34:474-478.
[11]周春晖,杜泽学,李小年,等.水热体系合成锂皂石结构的演化和影响规律研究[J].无机化学学报,2005,21(9):1 327-1 332.
[12]钱鑫昌.聚丙烯/锂皂石复合材料的制备[D].武汉:武汉工程大学,2014.
[13]孙红娟,刘颖,彭同江,等.锂皂石的水热合成与表征[J].人工晶体学报,2008,37(4):844-848.
[14]范能全,范永仙,童东绅,等.表面活性剂介质中有机化锂皂石的水热合成及结构特征[J].高校化学工程学报,2010,24(5):852-857.
[15]Baskaralingam P,Pulikesi M.Modified hectorites and adsorption studies of a reactive dye[J].Applied Clay Science,2007,37(1):207-214.
[16]许恩惠,郑强,王彩红,等.尼龙6/有机锂皂石纳米复合材料的制备及性能研究[J].高分子学报,2015(5):515-523.
[17]Chen G,Qi Z,Shen D.Shear-induced ordered structure in polystyrene/clay nanocomposite[J].Journal of Materials Research,2000,15(2):351-356.
[18]M Zouheir Jandali,Georg Widmann.热塑性聚合物[M].上海:东华大学出版社,2008.
[19]刘继纯,付梦月,李晴媛,等.蒙脱土/聚苯乙烯复合材料的热分解成炭行为[J].复合材料学报,2012,29(6):9-18.
[20]熊丽君,钱鑫昌,张兵,等.高抗弯聚丙烯/有机化锂皂石复合材料的制备与性能[J].高分子材料科学与工程,2014,30(6):152-155.
[21]许恩惠,郭前程,陈磊,等.锂皂石分散状态对尼龙6纳米复合材料流变行为的影响[J].高分子材料科学与工程,2015,31(9):69-75.
[22]李斌,孙才英,张秀成.用CONE/TG研究含淀粉膨胀阻燃聚丙烯体系的阻燃和烟释放[J].高分子材料科学与工程,2000,16(5):146-149.