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polypropylene blends with poly (styrene-b-(ethylene-co-butylene)-b-styrene) under irradiation: A comparative investigation
关键字：Electron beam irradiation, Poly (styrene-b-(ethylene-co-butylene)-b-styrene) (SEBS), Polypropylene (PP), Crystallinity, Molecular weight
The aim of this paper is to investigate the stabilization of polypropylene in the poly (styrene-b-(ethyleneco-butylene)-b-styrene) (SEBS)/polypropylene (PP) blends under irradiation with respect to PP. The PP films, SEBS/PP films were subjected to electron beam irradiation and characterized by wide angle X-raydiffraction (WAXD), differential scanning calorimetry (DSC), gel permeation chromato...
http://www.polymer.cn/research/sy_info17618 |
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The Electrical Conductive Network Architecture of PP/PA6/CB Composites through Morphology Development during Layer-multiplying Extrusion
关键字： Multi-Iayer extrusion, Conductive polymer composites, Morphology, in situ Fibrillation
The conductive polymer composites are a kind of the most important functional polymer materials. In the composites, carbon black is a wide used conductive filler. The formation of conductive network of CB plays ...
http://www.polymer.cn/research/sy_info15172 |
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增容PP/回收PET共混物的动态流变行为
关键字：增容,回收,PET,混物,动态,流变,
本工作用双螺杆挤出机制备了未增容与增容的PP/回收PET（r-PET）共混物，所用相容剂为聚丙烯接枝马来酸酐（PP-g-MA）和聚丙烯接枝甲基丙烯酸缩水甘油酯（PP-g-GMA），高级旋转流变仪研究了共混物在260℃时的动态流变行为。研究结果表明，增容与未增容共混物的动态储能模量（G’）都随着扫描频率（ω）先减小后增大，即在低频处出现“第二平台”，认为这与r-PET粒子的形变驰豫和体系内部形成网络结构有关，此外，PP-g-MA对PP/r-PET共...
http://www.polymer.cn/research/ct_info427 |
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增容PP/回收PET共混物的动态流变行为
关键字：增容,回收,PET,混物,动态,流变,
本工作用双螺杆挤出机制备了未增容与增容的PP/回收PET（r-PET）共混物，所用相容剂为聚丙烯接枝马来酸酐（PP-g-MA）和聚丙烯接枝甲基丙烯酸缩水甘油酯（PP-g-GMA），高级旋转流变仪研究了共混物在260℃时的动态流变行为。
http://www.polymer.cn/research/ct_info19 |
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不同成核作用硅灰石混杂填充PP复合材料性能研究
β-PP复合材料的力学性能优于a-PP复合材料，尤其冲击强度[1-2]，其结晶性能和力学性能已有大量研究[3]，但具有不同成核机理无机填料混杂填充PP复合材料的研究鲜见报道。本文采用具有β-成核作用的硅灰石(WIoo)和具有α-成核作用的硅灰石(W)混杂制备填充PP复合材料，研究了不同成核机理硅灰石之间的竞争作用和混杂填充PP复合材料的结晶和力学性能。
http://www.polymer.cn/research/dis_info18852 |
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纳米管对|3一成核PP的结晶行为与熔融特性的影响
已有大量研究表明碳纳米管( CNT)填充聚丙烯(PP)主要形成α-晶[1]，己知β-晶PP比α-晶具有高的韧性，但CNT填充β-PP复合材料研究报道不多 。本文选用TMBs、庚二酸钙(CaPA)及纳米碳酸钙负载庚二酸钙NA200作为β一成核剂，制备了多壁碳纳米管(MWCNT)填充β一成核PP复合材料，研究了不同β一成核剂在填充PP复合材料中的β一成核能力和晶型变化规律，考察了MWCNT用量、不同p一成核剂及用量对p一成核能力和p一晶含量的影响，探讨了...
http://www.polymer.cn/research/dis_info18750 |
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The Electrical Conductive Network Architecture of PP/PA6/CB Composites through Morphology Development during Layer-multiplying Extrusion
关键字： Multi-Iayer extrusion, Conductive polymer composites, Morphology, in situ Fibrillation
The conductive polymer composites are a kind of the most important functional polymer materials. In the composites, carbon black is a wide used conductive filler. The formation of conductive network of CB plays ...
http://www.polymer.cn/research/dis_info17238 |
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PP/POE/GF三元复合材料的制备及性能研究
关键字：聚丙烯，玻璃纤维，增强，增韧
本工作采用玻璃纤维（GF）及POE对PP进行增强增韧的改性。通过添加一定含量的马来酸酐接枝POE（POE-g-MA）以改善玻璃纤维/基体树脂界面的相容性，并讨论了其含量对复合材料力学性能的影响。
http://www.polymer.cn/research/dis_info15938 |
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Artificial nacres: ultra-strong PP/MMT nanocomposites with micro-sheet morphologies
关键字：PP/MMT nanocomposites; mechanical performance; micro-sheet morphologies; pressure-induced-flow processing
A series of nacre-like polypropylene/montmorillonite (PP/MMT) nanocomposites with excellent mechanical performances prepared by pressure-induced-flow processing (PIF-processing) were studied. Results showed that after PIF-processing the materials exhibited markedly ...
http://www.polymer.cn/research/dis_info14039 |
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膨胀阻燃SEBS / PP弹性体的制备与性能研究
关键字：APP, CFA, SEBS, 聚丙烯, 膨胀阻燃
以聚磷酸铵（APP）三嗪系成炭发泡剂（CFA）和SiO2作为SEBS / PP共混材料的膨胀阻燃剂（IFR）采用。采用氧指数、垂直燃烧研究了APP与CFA的不同配比、IFR不同添加量对阻燃材料阻燃性能的影响，并对其力学性能进行测试。当IFR总添加童为28%, APP / CFA质量比为4 / 1时阻燃SEBS/PP共混材料显示出较好的阻燃效果，其氧指数为32.4%，垂直燃烧达到UL-94V0级（1.6mm）。采用热失重法证实了配比合理的膨...
http://www.polymer.cn/research/dis_info13788 |
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