聚丙烯高性能化材料结构和性能的研究
详细信息    本馆镜像全文|  推荐本文 |  |   获取CNKI官网全文
摘要
聚丙烯体中加入少量 PA6、PET、环氧树脂及反应增容剂,通过反
    应共混提高了材料的力学性能。
     用扫描电镜和图象处理软件分析 PP/PA6、PP/PET 共混物的形貌,在
    扭矩流变仪中研究环氧树脂在 PP 熔体中的固化行为,测量了 PP/EPOXY
    共混物与水的动态接触角和 PP/EPOXY 共混物的熔体流动性,用偏光显微
    镜观察合金等温结晶形态并测量力学性能,最后对三体系力学性能进行对
    比。
     PP/PA6 是典型的不相容体系,加入两种反应增容剂后相容性改善且
    EPDM-g-GMA 增容效果较好;PP 球晶尺寸随 PA6 含量增加而减小,PA6
    相分布在 PP 球晶之间,加入 PP-g-MAH 或 EPDM-g-GMA 后相容性改善;
    PP/PA6 中加入 EPDM-g-GMA 后起到反应增容和橡胶增韧的协同效应;
    PP/PA6 中加入 PP-g-MAH 后杨氏模量提高,同时屈服强度高于未增容体
    系。
     PP/PET 也是典型的不相容体系,加入两种反应增容剂后相容性提高
    且 EPDM-g-GMA 的效果较好; PP 球晶随 PET 的混入而明显减小,PET
    相 分 散 在 球 晶 之 间 , 加 入 EPDM-g-GMA 后 二 者 相 容 性 改 善 ,
    PP/PET/EPDM-g-GMA 中加入成核剂后对 PET 结晶有细化作用;PP/PET
    体系中加入 EPDM-g-GMA 起到反应增容和橡胶增韧的协同效应,进一步
    加入的成核剂有利于增韧;PP/PET 体系中加入 PP-g-MAH 后模量提高;
    PP/PET 中加入 PP-g-MAH 后屈服强度缓慢下降。
     当共混时间达到 10~15 分钟时,环氧树脂可能凝胶化使扭矩曲线升高,
    之后进入固化阶段; PP 中加入环氧树脂后,交联阻碍结晶,使 PP 球晶
    尺寸变小、变模糊;PP 中加入环氧树脂后亲水性提高,熔体流动性下降;
    随 E-51 含量的增加,未增容体系的模量提高,屈服强度下降,韧性下降,
    加入 PP-g-MAH 后,模量进一步提高,屈服强度缓慢上升,韧性改善。
     力 学 性 能 对 比 表 明 : PP/PA6/EPDM-g-GMA 体 系 的 韧 性 最 好 ,
    PP/PET/PP-g- MAH 体系刚性最大,PP/E-51/203#/PP-g-MAH 体系的屈服强
    度最高。
The mechanical properties of polypropylene were improved by
    reactive blending with a few nylon6, polyethylene terephthalate, epoxy
    and compatibilizer.
     The morphology of PP/PA6 blends and PP/PET blends were
    analysized by ESEM and image processing software. The crosslink action
    of epoxy in PP melt was studied in torque rheometer. The melt flow index
    and dynamic contact angle of PP/EPOXY blends in water were measured.
    The isothermal crystalline state of PP/PA6 blends, PP/ PET blends and
    PP/EPOXY blends were observed by polarizing microscope and their
    mechanical properties were also tested. At last, the mechanical properties
    of the three systems were contrasted.
     PP/PA6 is a typical immiscible system. The compatibility was
    improved by adding two kinds of compatibilizer, and EPDM-g-GMA was
    more efficient. The dimension of PP spherulites minished with PA6
    content increasing. PA6 phase distributed among PP spherulites, and the
    compatibility was improved by adding PP-g-MAH or EPDM-g-GMA. The
    reactive compatibilization and rubber tougheness had cooperative
    effectiveness on PP/PA6 blends, after adding EPDM-g-GMA. The Yang’s
    modulus of PP/PA6 blends was improved after adding PP-g-MAH, at the
    same time, the yield stress was higher than that of immiscible system.
     PP/PET is also a typical immiscible system. The compatibility was
    improved by adding two kinds of compatibilizer, and EPDM-g-GMA was
    more efficient. The dimension of PP spherulites minished after PP had
    blended with PET . PET phase distributed among PP spherulites, and the
    compatibility was improved by adding EPDM-g-GMA. PET crystal phase
    became finer after adding nucleating agent in PP/PET/EPDM-g-GMA
    blends. The reactive compatibilization and rubber tougheness had
    cooperative effectiveness on PP/PET blends, furthermore, nucleating
    agent takes advantage in improving toughness. The Yang’s modulus of
    PP/PET blends was improved after adding PP-g-MAH, at the same time,
    the yield stress decrease slowly.
    
    
    Epoxy was likely to begin gelationization, which lift torque curve in
    10~15minute, and then Epoxy come into solidify period. After PP blends
    with epoxy, the crystallization was baffled by crosslinking and the
    dimension of PP spherulites become small and illegible, at the same time,
    the hydrophilicity increase and the fluidity descend. The Yang’s modulus
    of uncompatibile system increase while the yield stress and toughness
    decrease. After adding PP-g-MAH, the Yang’s modulus of blend increase
    more, and the yield stress increase slowly and toughness improve.
     The results of mechanical properties contrasting show that
    PP/PA6/EPDM-g-GMA system was toughest, PP/PET/PP-g-MAH system
    was rigidest and PP/E-51/ 203#/PP-g-MAH system is best at yield stress.
引文
参考文献
    1. 吴培熙,张留成,聚合物共混物,北京:中国轻工业出版社,1996
    2. 张玉清,葛从辛, 聚丙烯合金的新发展,合成树脂及塑料,2000,
     17(3): 49~52
    3. 钟明强,刘俊华,胡华峰,等,聚丙烯共混改性研究进展,中国塑料,
     1999,13(9): 9~19
    4. 张增民, 聚丙烯的高性能技术及应用开发方向,塑料,1993,22(2):
     42~43
    5. 李忠明,扬明波,聚烯烃工程化研究现状(续),四川化工,1996,
     4: 35~38
    6. 徐光景,聚丙烯共混改性影响因素初探,塑料,1998,27(6): 27~32
    7. 童筱芳,张增民, 聚丙烯/高密度聚乙烯共混体系的结晶形态,塑料,
     1989,18(2): 11~18
    8. 钱冀清,李光杰, 聚丙烯接枝共聚物增大聚丙烯共混体系相容性研
     究,中国塑料,1989,3(1): 9~14
    9. 晋日呀,王培霞,聚丙烯改性研究进展,中国塑料,2001,15(2): 20~
     23
    10.封朴,聚合物合金,上海:同济大学出版社,1997
    11.魏京华, 聚丙烯共混增韧研究进展,合成树脂及塑料,2002,19(2): 47~51
    12.张增民,吕荣侠.PP/HDPE/弹性体三元共混体系力学性能,形态及结
     构,塑料工业,1989,1: 31~38
    13.段予忠,塑料改性,北京:科技文献出版社,1987
    14.赵劲松,王俊,聚丙烯复合材料的性能与形态,塑料,1990,11(3):
     3~9
    15.吴培熙,张留成,聚合物共混改性原理及工艺,北京:中国轻工业出
     版社,1984
    16.Wei G X, Sue H J, Chu J, et al. Toughening and strengthening of
     polypropylene using the rigid-rigid polymer toughening concept Part
     Ⅰ.Morphology and mechanical property investigations , Polymer, 2000,
     41(8): 2947~2960
     94
    
    
    参考文献
    17.Wei G X, Sue H J. Toughening and strengthening of polypropylene using
     the rigid-rigid polymer toughening concept Part Ⅱ , Toughening
     mechanisms investigations, Journal of Materials Science, 2000, 35(3):
     555~566
    18.Kwan H Y, Lee H W , Park O K, et al. Properties of poly(ethylene
     terephthalate) and maleic anthydride-grafted polypropylene blends by
     reactive processing, Journal of Applied Polymer Science, 1998, 70(2):
     389~395
    19.Pang Y X, Jia D M, Hu H J, et al. Effects of a compatibilizing agent on
     the morphology, interface and mechanical behavior of polyproylene/
     poly(ethylene terephthalate) blends, Polymer, 2000, 41(1): 357~365
    20.Song M, Pang Y. Correlation among morphology, interface and mech-
     anical properties experimental study, Journal of macromolecules science
     physics, 2001, vol B 40(6): 1153-1167
    21.Champange M F,Huneault M A, Roux C, et al. Reactive compatibili-
     zation of polypropylene/polyethylene terephthalate blends, Polymer
     Engineering and Science, 1999, 39(6): 976~984
    22.Heino M, Kirjava J, Hietaoja P, et al. Compatibilization of polyethylene
     terephthalate/polypropylene blends with styrene-ethylene/butylene-
     styrene (SEBS) block copolymers, Journal of Applied Polymer Science,
     1997, 65(2): 241~249
    23.Tseng F P, Lin J J, Tseng C R, et al. Poly(oxypropylene)-amide grafted
     polypropylene as novel compatibilizer for PP and PA6 blends, Polymer,
     2001, 42(2): 713~725
    24.Jannerfekdt G , Boogh L, Manson J A E. The morphology of
     hyperbranced polymer compatibilized polypropylene/polyamide6 blends,
     Polymer Engineering and Science 2001, 41(2): 293~300
    25.Janerfekdt G, Boogh L, Manson J A E. Tailored interfacial properties for
     immiscible polymers by hyperbranced polymers Polymer, 2000, 41
     (21): 7627~7634
    26.Gonzalez-Montiel A, Keskkula H, Paul D R. Impact-modified nylon6/
     polypropylene blends: Morphology-property relationships, Polymer,
     1995, 36 (23): 4587~6305
    27.Wilkinson A N, Laugel L, Clemens M L, et al. Phase structure in
     polypropylene/ PA6/SEBS blends, Polymer, 1999, 40(17): 4971~4975
     95
    
    
    参考文献
    28.Gupta A K ,Tain A K .Study on binary and ternary blends of
     polypropylene with ABS and LDPE, ⅡImpact and tensile properties,
     Journal of Applied Polymer Science, 1990, 39(3): 515~530
    29.Pate A C, Brahmb H, Sarawade R B, et al. Mophological and mechanical
     properties of PP/ABS blends compalibilized with PP-g-acrylic,Journal
     of Applied Polymer Science, 2001, 81(7): 1731~1741
    30.周明义,ABS/改性 PP 共混物形态与冲击性能,工程塑料应用, 2000,
     28(10): 29~32
    31.Souza A M C,Demarquette N R. Influence of coalescence and interfacial
     on the mophology of PP/HDPE compatibilized blends, Polymer, 2002,
     43(7): 3959~3967
    32.Schürman B L, Nieberqall U, Swverin N, et al. Polyethylene(PEHD)
     /poly propylene(iPP) blends: mechanical properties, structure and
     morphology, Polymer, 1998, 39(22): 5283~5291
    33.汪晓东,励杭泉,分子量对 PP/UHMWPE 合金力学性能,形态和流变
     性能的影响,高分子材料科学与工程,1996,12(3):54~60
    34.杨军,李炳海, UHMWPE 改性 PP 的结晶行为和亚微观形态研究,
     塑料,1998,27(4):32~36
    35.KeJun Wang, zhou chixing. The effects of melt vibration blending on the
     subsequent crystallization and melting behavior of polypropylene/ultra
     high molecular weight polyethylene , Polymer Engineering and Science,
     2001, 41(12): 2249~2258
    36.杨军,李炳海, PP/UHMWPE 原为成纤复合材料的混炼及成形工艺
     研究,中国塑料, 1999, 13(11): 34~38
    37.Zhang M L, Liu Y G, Zhang X H, et al. The effect of elastomeric
     nano[hyphen] particles on the mechanical properties and crystallization
     behaviour of poly propylene, Polymer, 2002, 43(19): 5133~5142
    38.Da Silva Ana lucia N, Rocha Marisa C G, Fdrnada C, et al. Evaluation of
     rheological and mechanical behavior of blends based on polypropylene
     and metallocene elastomers, Polymer Testing, 2002, 21(6): 647~652
    39.Mcnally T, MCSHANE P, MALLY G M, et al. Rheology , phase
     morphology, me- chanical, impact and thermal properties of
     polypropylene/metallocene catalysed ethylene 1-octene copolymer
     blends, Polymer, 2002, 43(13): 3785~3793
     96
    
    
    参考文献
    40.Zhang H J, Wang J W, Li J, et al. Toughened polypropylene with
     balanced rigidity III Compositions and mechanical properties, Journal of
     Applied Polymer Science, 2001, 79(8): 1345~1350
    41.Lustiger A, Marzinsky C N ,Mueller R R. Spherulite boundary
     strengthening concept for toughening polypropylene, Journal of Polymer
     Science Part B: Polymer physics, 1998 , 36(11): 2047~2056
    42.吕彦梅,唐华杰,侯馨,刚性增韧材料 塑料科技,1999,1: 33~37
    43.杨军忠,周春怀,王延伟,PP/PS/SEBS 三元共混物的研究,中国塑料,
     2000, 14(11): 32~37
    44.周春怀,杨军忠,王延伟,高刚性、高韧性、高流动性聚丙烯的研制,
     工程塑料应用,2001,29(3): 8~11
    45.闫瑞萍,梁善杰,PP/HDPE/EPDM 三元共混材料微观结构及增韧机理
     分析, 工程塑料应用,1994,22(3): 31~34.
    46.Srinivasa K R , Gupta A K. Mechanical properties and morphology of
     PP/SEBS/PC blends, Journal of Applied Polymer Science, 1996, 53(1):
     1~9
    47.刘平安,李笃信,贾德民等,聚丙烯/尼龙 6 共混物的 X 射线衍射研
     究,高分子材料科学与工程,2000,16(6): 83~85
    48.凌绳,王秀芬,吴友平,聚合物材料,北京:中国轻工业出版社,2000
    49.刘长生,王琪, 尼龙 6/聚丙烯共混改性研究,湖北化工,2001,3: 1~
     3
    50.谢续明,陈年欢,李松, 尼龙 6/多单体接枝聚丙烯共混物的形态结
     构及力学性能的研究,高分子学报, 1999,5: 527~533
    51.张丁浩,聚丙烯/尼龙 1010 体系共混过程中的在线分析及其结构与性能研究:
     [硕士学位论文],天津;天津大学,2001
    52.杨石海,聚乙烯/尼龙 1010 体系共混过程中的在线分析及相结构研究:
     [硕士学位论文],天津;天津大学,2003
    53.Rudol phD. Deanin, Aldo M. Crugnola Toughness and Brittleness, 1976, chap: 23
    54.崔丽莉,多相聚合物形成过程中的相结构与性能研究:[硕士学位论
     文],天津;天津大学,2001
    55.李锦春,愈强,林明德等, 热致性液晶共聚酯/聚丙烯共混物,工程
     塑料应用,1997,25(5): 1~4
    56.张宏放,陈玉, 热致性液晶乙纤维素和聚丙烯共混物的结构与性
     能,应用化学,1993,10(6): 35~38
     97
    
    
    参考文献
    57.塑料用聚合物(修订版),天津:天津轻工业学院化工系,1993
    58.环氧树脂与环氧化合物, 天津:天津人民出版社, 1974
    59.高分子物理实验,天津:天津大学材料科学与工程学院高分子材料教
     研室, 1996
    60.吴 S.,高聚物的界面与粘合,北京:纺织工业出版社,1987
    61.施来顺,曹晓新.等离子体改性聚合物表面动力学的动态接触角分析,
     山东工业大学学报,2000,30(2): 120~126
    62.潘加宇,董建华,邓卓,等.苯乙烯/甲丙烯酸和苯乙烯/甲丙烯酸
     (β-羟丙酯)嵌段共聚物的表面动态行为,高分子学报,1999,3: 297~
     299

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址:北京市海淀区学院路29号 邮编:100083

电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700