汽车保险杠用增韧聚丙烯（PP）复合材料的研究
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摘要
本论文通过橡胶(POE)和聚丙烯(PP)共混和添加成核剂改变聚丙烯的结晶形态两种方式来对聚丙烯进行增韧,研究了改性后复合材料的性能,并取得了一定的效果。
在研究橡胶增韧PP的过程中,采用了DOW化学公司近几年推出的用茂金属催化剂通过乙烯和辛烯原位聚合技术生产的一种饱和乙烯-辛烯共聚物(POE)增韧改性PP。对PP/POE体系脆韧转变进行了定量研究,并对PP/POE体系的分散相粒径,结晶性能和力学性能进行了研究,并用扫描电子显微镜(SEM)、偏光显微镜(POM)、广角X射线衍射仪(WAXD)和差示扫描量热仪(DSC)对其进行了详细的表征。结果表明,POE加入随含量的增加,PP的冲击强度和断裂伸长率不断升高,拉伸屈服强度不断降低,且随着拉伸速率的增加,PP/POE共混体系的拉伸屈服强度逐渐升高,而断裂伸长率则逐渐降低;基体韧性低的PP(K7926)/POE体系出现脆韧转变所需弹性体POE含量和临界基体层厚度比基体韧性高的PP(4220)/POE体系高。结晶分析表明,加入POE破坏了PP分子链的规整性,阻碍PP的结晶,导致其结晶度不断降低;POE与PP具有较好的相容性;POE加入没有改变PP的晶面间距和晶型。
在研究成核剂改变聚丙烯进行增韧的过程中,分别用α晶型成核剂(TMA-3、TM-1、HPN-68L)和β晶型成核剂(TMB-5)对抗冲共聚PP的结晶和力学性能进行研究,并用偏光显微镜(POM)、广角X射线衍射仪(WAXD)和差示扫描量热仪(DSC)对其进行了详细的表征。结果表明,TMA-3和TMB-5使抗冲共聚PP的起始结晶温度(Ton)分别提高15.3℃和12.7℃,结晶峰温度(Tp)分别提高17℃和13.7℃;都能使结晶速率加快;使球晶细化,结晶更加均匀化,规整化;结晶度增加。TMA-3和TMB-5都能使共聚PP拉伸强度有所提高,TMB-5因诱发共聚PP产生大量β晶,使其缺口冲击强度和断裂伸长率提高了56%和15%,比α成核剂(分别为6%和5%)提高显著。
通过POE和成核剂复配来对PP进行增韧,并对其力学性能进行表征,结果表明,其冲击强度和拉伸强度都有一定程度的提高,综合性能良好,达到了汽车保险杠对PP复合材料的要求。
In the thesis, the polypropylene (PP) resin was modified for toughness by two methods, Including the adding of POE, blending with nucleators to modify the crystallization of PP. The properties of PP composite were studied and the result is good.
Saturation ethylene-octylene copolymer (POE) produced by DOW chemistry company via ethylene and octylene original position polymerization catalysised by metallocene was adopted, when studying modified PP. The brittle-ductile transition of PP/POE was studied quantitatively, and discontinuous phase particle size, crystallization and mechanical properties of PP/POE were studied as well as and they were investigated by scanning electronic microscope (SEM), polarized optical microscopy (POM), wide angle X-ray diffraction (WAXD) and differential scanning calorimetry (DSC). The results shows that the impact strength and rupture elongation ratio of PP/POE can be increased gradually and tensile yield intension reduced gradually as the adding content of POE, while tensile yield intension can be increased gradually and rupture elongation ratio reduced gradually as the increasing of rate of estension. The content of POE adding into PP(K7926)/POE that matrix ductility is lower while PP/POE blends appearing brittle-ductile transition and the critical matrix ligament thickness (Tc) are higher than PP(K7926)/POE that matrix ductility is higher. The crystallization analysis shows that the crystallization degree of PP was reducted sequencely by adding POE to damage PP molecular chain regulation and hind PP crystallization. The crystallization shape and interplanar distance of PP was not changed by adding POE and there is very good consistency between PP and POE.
The influence ofαform(TMA-3, TM-1, HPN-68L) andβform(TMB-5) nucleators on crystallization and mechanical properties of impact co-polypropylene was studied and they were investigated by polarized optical microscopy (POM), differential scanning calorimetry (DSC) and wide angle X-ray diffraction (WAXD). The results shows that TMA-3 and TMB-5 nucleators all improve beginning crystallization temperature to 15.3℃and 12.7℃and crystallization peak temperature to 17℃and 13.7℃, accelerate crystallization velocity of PP, increase crystallization degree of PP, reduce, minish and regulate crystallization form. TMA-3 and TMB-5 all increases tensile intension to some extent. TMB-5 because of it's inducting co-PP to generate moreβcrystal form has more evidently increased impact strength and rupture elongation ratio of PP about 56% and 15% thanαform nucleator(6% and 5%).
The PP resin was modified for toughness by multiplicity formulation of POE and nucleators, and the mechanical properties of PP/POE/ nucleators were tested. The results shows that Impact strength and tensile intension can be increased to some extent and combination property is good. The PP composite reach the require of auto bumper.
在研究橡胶增韧PP的过程中,采用了DOW化学公司近几年推出的用茂金属催化剂通过乙烯和辛烯原位聚合技术生产的一种饱和乙烯-辛烯共聚物(POE)增韧改性PP。对PP/POE体系脆韧转变进行了定量研究,并对PP/POE体系的分散相粒径,结晶性能和力学性能进行了研究,并用扫描电子显微镜(SEM)、偏光显微镜(POM)、广角X射线衍射仪(WAXD)和差示扫描量热仪(DSC)对其进行了详细的表征。结果表明,POE加入随含量的增加,PP的冲击强度和断裂伸长率不断升高,拉伸屈服强度不断降低,且随着拉伸速率的增加,PP/POE共混体系的拉伸屈服强度逐渐升高,而断裂伸长率则逐渐降低;基体韧性低的PP(K7926)/POE体系出现脆韧转变所需弹性体POE含量和临界基体层厚度比基体韧性高的PP(4220)/POE体系高。结晶分析表明,加入POE破坏了PP分子链的规整性,阻碍PP的结晶,导致其结晶度不断降低;POE与PP具有较好的相容性;POE加入没有改变PP的晶面间距和晶型。
在研究成核剂改变聚丙烯进行增韧的过程中,分别用α晶型成核剂(TMA-3、TM-1、HPN-68L)和β晶型成核剂(TMB-5)对抗冲共聚PP的结晶和力学性能进行研究,并用偏光显微镜(POM)、广角X射线衍射仪(WAXD)和差示扫描量热仪(DSC)对其进行了详细的表征。结果表明,TMA-3和TMB-5使抗冲共聚PP的起始结晶温度(Ton)分别提高15.3℃和12.7℃,结晶峰温度(Tp)分别提高17℃和13.7℃;都能使结晶速率加快;使球晶细化,结晶更加均匀化,规整化;结晶度增加。TMA-3和TMB-5都能使共聚PP拉伸强度有所提高,TMB-5因诱发共聚PP产生大量β晶,使其缺口冲击强度和断裂伸长率提高了56%和15%,比α成核剂(分别为6%和5%)提高显著。
通过POE和成核剂复配来对PP进行增韧,并对其力学性能进行表征,结果表明,其冲击强度和拉伸强度都有一定程度的提高,综合性能良好,达到了汽车保险杠对PP复合材料的要求。
In the thesis, the polypropylene (PP) resin was modified for toughness by two methods, Including the adding of POE, blending with nucleators to modify the crystallization of PP. The properties of PP composite were studied and the result is good.
Saturation ethylene-octylene copolymer (POE) produced by DOW chemistry company via ethylene and octylene original position polymerization catalysised by metallocene was adopted, when studying modified PP. The brittle-ductile transition of PP/POE was studied quantitatively, and discontinuous phase particle size, crystallization and mechanical properties of PP/POE were studied as well as and they were investigated by scanning electronic microscope (SEM), polarized optical microscopy (POM), wide angle X-ray diffraction (WAXD) and differential scanning calorimetry (DSC). The results shows that the impact strength and rupture elongation ratio of PP/POE can be increased gradually and tensile yield intension reduced gradually as the adding content of POE, while tensile yield intension can be increased gradually and rupture elongation ratio reduced gradually as the increasing of rate of estension. The content of POE adding into PP(K7926)/POE that matrix ductility is lower while PP/POE blends appearing brittle-ductile transition and the critical matrix ligament thickness (Tc) are higher than PP(K7926)/POE that matrix ductility is higher. The crystallization analysis shows that the crystallization degree of PP was reducted sequencely by adding POE to damage PP molecular chain regulation and hind PP crystallization. The crystallization shape and interplanar distance of PP was not changed by adding POE and there is very good consistency between PP and POE.
The influence ofαform(TMA-3, TM-1, HPN-68L) andβform(TMB-5) nucleators on crystallization and mechanical properties of impact co-polypropylene was studied and they were investigated by polarized optical microscopy (POM), differential scanning calorimetry (DSC) and wide angle X-ray diffraction (WAXD). The results shows that TMA-3 and TMB-5 nucleators all improve beginning crystallization temperature to 15.3℃and 12.7℃and crystallization peak temperature to 17℃and 13.7℃, accelerate crystallization velocity of PP, increase crystallization degree of PP, reduce, minish and regulate crystallization form. TMA-3 and TMB-5 all increases tensile intension to some extent. TMB-5 because of it's inducting co-PP to generate moreβcrystal form has more evidently increased impact strength and rupture elongation ratio of PP about 56% and 15% thanαform nucleator(6% and 5%).
The PP resin was modified for toughness by multiplicity formulation of POE and nucleators, and the mechanical properties of PP/POE/ nucleators were tested. The results shows that Impact strength and tensile intension can be increased to some extent and combination property is good. The PP composite reach the require of auto bumper.
引文
[1]李光耀.塑料在汽车工业上的应用及发展前景.塑料,2004,33(6):84-88
[2]刘莉,张微微,吉长峰.聚丙烯保险杠用的开发进展.化工纵横,2003,17(6):21-24
[3]李馥梅.聚丙烯汽车保险杠专用料发展概况.现代塑料加工应用,2000,12(1):51-54
[4]贾秀峰,郑梅梅,崔红跃等.聚丙烯汽车保险杠专用料的研制.塑料加工应用,1996,8(2):52
[5]Anon.The development of modified polyproplene at automobile bumpers.Plastic Technology.1990,36(8):43
[6]李青山,王正平,徐甲强编著.材料加工助剂原理.哈尔滨:哈尔滨工程大学出版社.2001
[7]孙元勇.聚丙烯汽车保险杠专用料.合成树脂及塑料,1992,9(4):33
[8]钱德基.聚烯烃在汽车制造业中的应用.合成树脂及塑料,1994,11(1):50
[9]李馥梅,唐小平,姚亮红,郑现国.聚丙烯汽车保险杠喷涂改性技术.现代塑料加工应用,2002,14(2):33-35
[10]Anon.Pretreatment of plastic products in coating.J P 59179534,1983
[11]Maki Masami,Sekiguchi Katsumi,Iguma Takeski etal.Coatablepolypropylene compositions for automobile bumpers.J P 63122752,1986
[12]Kawai Yoichi,Abe Masaru,Mkai Masami etal.Propylene copoly-mer compositions for coatable bumpers.JP 61215643,1986
[13]Sano Keiichiro,Inagaki Kunihiro.Manufacture of abrasion-andweather-resistant plastic automobile bumpers.JP 05279504,1993
[14]Ota Satoshi,Sasaki Koji,Yoshids Tom.Modified polypropylenecompositions for moldings with good affinity to coatings and paint.J P 03258845,1991
[15]Nakashima takeshi.Propylene polymer compositions for impact-resistant moldings showing excellent coatability.J P 10101891,1998
[16]王永耀.聚乙烯、聚丙烯废塑料回收利用进展[J].石油化工,2003,32(8):718-723.
[17]约翰.沙伊斯著.聚合物回收-科学、技术与应用[M].纪奎江等译.北京:化学工业出版社,2004,3.
[18]王跃.聚丙烯汽车保险杠的应用与开发进展[J].塑料,2001,30(3):11-17.
[19]李玉敏.PP改性及加工技术进展.塑料加工,1996,24(1):25
[20]肖勤莎,罗毅.我国增韧聚丙烯的开发现状及应用.现代塑料加工应用,1998,10(5):44
[21]段予忠,徐凌秀主编.常用塑料原料与加工助剂.北京:科学技术文献出版社,1991·50
[22]王珂,史贞,王建民.PP增韧技术的研究进展.合成树脂及塑料,1996,13(3):58
[23]董晓武,谢云洁,阮伟.聚丙烯共聚物新品种的开发及需求.中国塑料,2000,14(5):1
[24]晋日亚,贺增第.聚丙烯的改性.现代塑料加工应用,2001,13(1):62
[25]关肇基,姜斌.改性聚丙烯应用开发概况.合成树脂及塑料,1990,(1):12
[26]邹盛欧.聚丙烯的改性与加工.现代塑料加工应用,1999,11(5):60
[27]窦强,李春成,任巨光.聚丙烯固相接枝改性进展.中国塑料,1995,9(5):7
[28]孙春燕,陈伟,刘伟,景振华.间规聚丙烯的研究开发进展,Ⅰ.间规选择性茂金属催化剂.石化技术与应用,2001,19(1):3 338
[29]谢美然,伍青.用茂金属催化体系合成聚丙烯弹性体研究的进展.高分子通报,1999,(1):44
[30]吕坤.聚合物增韧机理研究进展.现代塑料加工应用,2000,12(4):50
[31]窦强,任巨光,赵石林等.β-晶型成核剂在聚丙烯增韧体系中的应用.中国塑料,2000,14(1):38
[32]童筱芳,张增民,相志红等.聚丙烯/高密度聚乙烯共混体系的结晶形态.塑料,1989,(2):11
[33]于建,李笃信,贾德民.PP/PA共混改性研究进展.工程塑料应用,1998,26(10):27
[34]黄健,张云灿,左文京等.PP/EPDM/高岭土三元共混体系的脆韧转变.工程塑料应用,2000,28(10):6
[35]冯威,张立群,杨金才等.硫酸钙晶须/PP/EPDM复合材料力学性能研究.工程塑料应用,1997,25(4):31
[36]王旭,黄锐.PP/纳米级CaCO3复合材料性能研究.中国塑料,1999,13(10):22
[37]任显诚,白兰英,王贵恒等.纳米级CaCO3粒子增韧增强聚丙烯的研究.中国塑料,2000,14(1):22
[38]史观一.β晶型聚丙烯研究.自然科学年鉴,1987,(2):48
[39]何顺伦.β晶型聚丙烯--一种新型聚丙烯热水管专用料.塑料,2000,29(1):43
[40]Jain A K,Nagpal A K,Singhal R,etal.Effect of dynamiccrosslinking on impact strength and other mechanical proper-ties of polypropylene/ethylene-propylene-diene rubber blends[J].J.Appl.Polym,Sci.,2000(78):2089-2103.
[41]Ceral AY.Pale I R.Ralbberreelinol,1983,56:1045
[42]Ceorge S J,Seph R.Thonlas S.Polymer,1995,36(23):05
[43]George S,Neelakallta-N R.Varughese K T,etal.J P.Lyn-Sci,Polym,Phys,1997,35:2309
[44]Seredal.PesL N,,Tines R C R,etal.Polym Potlaies,2001,40(3):265
[45]Geoes,PrasannakumL.Koshy P,etal.Materials,1996,26:51
[46]Gerges,Varugl-ese K T.Thenas R.eral.Polymer.1994,41:5485
[47]PhanT M,Denicola A J,Schadler L S.[J].J Appl Polym Sci.1998,68:1461.
[48]李艳霞,孙文强,刘保成等.聚丙烯汽车仪表盘专用料的研制[J].工程塑料应用,2001,29(4):7-9.
[49]张金柱.新型热塑性弹性体POE的性能及其在PP增韧改性中的应用[J].塑料科技,1999,(2):5-7.
[50]Sped w M,Patrick G R.[J].Polym Eng Sci.1975,15:668.
[51]毛立新,高翔,李淼等.茂金属聚烯烃弹性体增韧聚丙烯的研究[J].北京化工大学学报(自然科学版),2003,30(1):24-28.
[52]赵枫,杨琪,杨云波.PP/POE/PE共混改性的研究[J].石化技术与应用,2002,20(4):239-240;254.
[53]李明.PP/HDPE/POE共混物的流变行为与力学性能[J].上海氯碱化工,2005,(2):14-18.
[54]崔丽梅,邱桂学,潘同玺等.聚丙烯汽车保险杠专用料的研制[J].工程塑料应用,2004,(4):10.
[55]郭红革,谢雁,葛涛等.橡胶改性PP共混体系的研究[J].塑料工业,2001,29(1):13-15.
[56]Kukaleva N,Jollands M,Cser F,etal[J].Journal of Applied Polymer Science,2000,76(7):1011-1018.
[57]Wu S.Polymer,1985,26:1855.
[58]Wu S.J.Appl.Polym.Sci.1988,35:549.
[59]陆馨,杨海.山梨醇类聚丙烯成核剂的开发与应用研究进展[J].塑料助剂,2004,(1):14-18.
[60]黄赋云.成核剂在PP中的应用[J].塑料科技,2000,(4):40-43.
[61]郑宁来.我国透明聚丙烯发展[J].塑料加工应用,2001,23(4):42-47.
[62]王克智.聚烯烃成核剂形成产品群[J].工程塑料,2001,29(1):12.
[63]崔红跃.成核剂在聚丙烯中的应用[J].塑料加工应用,2001,23(2):44-46.
[64]张跃飞,辛忠.聚丙烯透明成核剂的开发与进展[J]中国塑料,2002,16(10):11-15.
[65]史继红.飞达公司PP成核剂项目开工,中国化工报[J],2002-01-14.
[66]Tjong S C,Shen J S.Structural properties and impact fracture behavior of injection molded blends of liquid crystalline copolyester and modified poly(phenylene oxide).Polym Eng Sci,1996,36(1):100.
[67]Zhang S G,Qiu S Z.Crystal structure of an Okazaki fragment at 2-A resolution.Makromol Chem.1992,193:583.
[68]汪克风,麦堪成,曾汉民.成核PP注塑样品的非等温结晶行为与熔融特性.高分子材料科学与工程,2001,17(2):125
[2]刘莉,张微微,吉长峰.聚丙烯保险杠用的开发进展.化工纵横,2003,17(6):21-24
[3]李馥梅.聚丙烯汽车保险杠专用料发展概况.现代塑料加工应用,2000,12(1):51-54
[4]贾秀峰,郑梅梅,崔红跃等.聚丙烯汽车保险杠专用料的研制.塑料加工应用,1996,8(2):52
[5]Anon.The development of modified polyproplene at automobile bumpers.Plastic Technology.1990,36(8):43
[6]李青山,王正平,徐甲强编著.材料加工助剂原理.哈尔滨:哈尔滨工程大学出版社.2001
[7]孙元勇.聚丙烯汽车保险杠专用料.合成树脂及塑料,1992,9(4):33
[8]钱德基.聚烯烃在汽车制造业中的应用.合成树脂及塑料,1994,11(1):50
[9]李馥梅,唐小平,姚亮红,郑现国.聚丙烯汽车保险杠喷涂改性技术.现代塑料加工应用,2002,14(2):33-35
[10]Anon.Pretreatment of plastic products in coating.J P 59179534,1983
[11]Maki Masami,Sekiguchi Katsumi,Iguma Takeski etal.Coatablepolypropylene compositions for automobile bumpers.J P 63122752,1986
[12]Kawai Yoichi,Abe Masaru,Mkai Masami etal.Propylene copoly-mer compositions for coatable bumpers.JP 61215643,1986
[13]Sano Keiichiro,Inagaki Kunihiro.Manufacture of abrasion-andweather-resistant plastic automobile bumpers.JP 05279504,1993
[14]Ota Satoshi,Sasaki Koji,Yoshids Tom.Modified polypropylenecompositions for moldings with good affinity to coatings and paint.J P 03258845,1991
[15]Nakashima takeshi.Propylene polymer compositions for impact-resistant moldings showing excellent coatability.J P 10101891,1998
[16]王永耀.聚乙烯、聚丙烯废塑料回收利用进展[J].石油化工,2003,32(8):718-723.
[17]约翰.沙伊斯著.聚合物回收-科学、技术与应用[M].纪奎江等译.北京:化学工业出版社,2004,3.
[18]王跃.聚丙烯汽车保险杠的应用与开发进展[J].塑料,2001,30(3):11-17.
[19]李玉敏.PP改性及加工技术进展.塑料加工,1996,24(1):25
[20]肖勤莎,罗毅.我国增韧聚丙烯的开发现状及应用.现代塑料加工应用,1998,10(5):44
[21]段予忠,徐凌秀主编.常用塑料原料与加工助剂.北京:科学技术文献出版社,1991·50
[22]王珂,史贞,王建民.PP增韧技术的研究进展.合成树脂及塑料,1996,13(3):58
[23]董晓武,谢云洁,阮伟.聚丙烯共聚物新品种的开发及需求.中国塑料,2000,14(5):1
[24]晋日亚,贺增第.聚丙烯的改性.现代塑料加工应用,2001,13(1):62
[25]关肇基,姜斌.改性聚丙烯应用开发概况.合成树脂及塑料,1990,(1):12
[26]邹盛欧.聚丙烯的改性与加工.现代塑料加工应用,1999,11(5):60
[27]窦强,李春成,任巨光.聚丙烯固相接枝改性进展.中国塑料,1995,9(5):7
[28]孙春燕,陈伟,刘伟,景振华.间规聚丙烯的研究开发进展,Ⅰ.间规选择性茂金属催化剂.石化技术与应用,2001,19(1):3 338
[29]谢美然,伍青.用茂金属催化体系合成聚丙烯弹性体研究的进展.高分子通报,1999,(1):44
[30]吕坤.聚合物增韧机理研究进展.现代塑料加工应用,2000,12(4):50
[31]窦强,任巨光,赵石林等.β-晶型成核剂在聚丙烯增韧体系中的应用.中国塑料,2000,14(1):38
[32]童筱芳,张增民,相志红等.聚丙烯/高密度聚乙烯共混体系的结晶形态.塑料,1989,(2):11
[33]于建,李笃信,贾德民.PP/PA共混改性研究进展.工程塑料应用,1998,26(10):27
[34]黄健,张云灿,左文京等.PP/EPDM/高岭土三元共混体系的脆韧转变.工程塑料应用,2000,28(10):6
[35]冯威,张立群,杨金才等.硫酸钙晶须/PP/EPDM复合材料力学性能研究.工程塑料应用,1997,25(4):31
[36]王旭,黄锐.PP/纳米级CaCO3复合材料性能研究.中国塑料,1999,13(10):22
[37]任显诚,白兰英,王贵恒等.纳米级CaCO3粒子增韧增强聚丙烯的研究.中国塑料,2000,14(1):22
[38]史观一.β晶型聚丙烯研究.自然科学年鉴,1987,(2):48
[39]何顺伦.β晶型聚丙烯--一种新型聚丙烯热水管专用料.塑料,2000,29(1):43
[40]Jain A K,Nagpal A K,Singhal R,etal.Effect of dynamiccrosslinking on impact strength and other mechanical proper-ties of polypropylene/ethylene-propylene-diene rubber blends[J].J.Appl.Polym,Sci.,2000(78):2089-2103.
[41]Ceral AY.Pale I R.Ralbberreelinol,1983,56:1045
[42]Ceorge S J,Seph R.Thonlas S.Polymer,1995,36(23):05
[43]George S,Neelakallta-N R.Varughese K T,etal.J P.Lyn-Sci,Polym,Phys,1997,35:2309
[44]Seredal.PesL N,,Tines R C R,etal.Polym Potlaies,2001,40(3):265
[45]Geoes,PrasannakumL.Koshy P,etal.Materials,1996,26:51
[46]Gerges,Varugl-ese K T.Thenas R.eral.Polymer.1994,41:5485
[47]PhanT M,Denicola A J,Schadler L S.[J].J Appl Polym Sci.1998,68:1461.
[48]李艳霞,孙文强,刘保成等.聚丙烯汽车仪表盘专用料的研制[J].工程塑料应用,2001,29(4):7-9.
[49]张金柱.新型热塑性弹性体POE的性能及其在PP增韧改性中的应用[J].塑料科技,1999,(2):5-7.
[50]Sped w M,Patrick G R.[J].Polym Eng Sci.1975,15:668.
[51]毛立新,高翔,李淼等.茂金属聚烯烃弹性体增韧聚丙烯的研究[J].北京化工大学学报(自然科学版),2003,30(1):24-28.
[52]赵枫,杨琪,杨云波.PP/POE/PE共混改性的研究[J].石化技术与应用,2002,20(4):239-240;254.
[53]李明.PP/HDPE/POE共混物的流变行为与力学性能[J].上海氯碱化工,2005,(2):14-18.
[54]崔丽梅,邱桂学,潘同玺等.聚丙烯汽车保险杠专用料的研制[J].工程塑料应用,2004,(4):10.
[55]郭红革,谢雁,葛涛等.橡胶改性PP共混体系的研究[J].塑料工业,2001,29(1):13-15.
[56]Kukaleva N,Jollands M,Cser F,etal[J].Journal of Applied Polymer Science,2000,76(7):1011-1018.
[57]Wu S.Polymer,1985,26:1855.
[58]Wu S.J.Appl.Polym.Sci.1988,35:549.
[59]陆馨,杨海.山梨醇类聚丙烯成核剂的开发与应用研究进展[J].塑料助剂,2004,(1):14-18.
[60]黄赋云.成核剂在PP中的应用[J].塑料科技,2000,(4):40-43.
[61]郑宁来.我国透明聚丙烯发展[J].塑料加工应用,2001,23(4):42-47.
[62]王克智.聚烯烃成核剂形成产品群[J].工程塑料,2001,29(1):12.
[63]崔红跃.成核剂在聚丙烯中的应用[J].塑料加工应用,2001,23(2):44-46.
[64]张跃飞,辛忠.聚丙烯透明成核剂的开发与进展[J]中国塑料,2002,16(10):11-15.
[65]史继红.飞达公司PP成核剂项目开工,中国化工报[J],2002-01-14.
[66]Tjong S C,Shen J S.Structural properties and impact fracture behavior of injection molded blends of liquid crystalline copolyester and modified poly(phenylene oxide).Polym Eng Sci,1996,36(1):100.
[67]Zhang S G,Qiu S Z.Crystal structure of an Okazaki fragment at 2-A resolution.Makromol Chem.1992,193:583.
[68]汪克风,麦堪成,曾汉民.成核PP注塑样品的非等温结晶行为与熔融特性.高分子材料科学与工程,2001,17(2):125