Glass fiber reinforced and β‐nucleating agents regulated polypropylene: A complementary approach and a case study
Glass fiber reinforced and β‐nucleating agents regulated polypropylene: A complementary approach and a case study
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DOI：
10.1002/app.45768
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发表时间：
2018-02
影响因子：
3
通讯作者：
Linfang Cui;Penglei Wang;Yagang Zhang;Xinyuan Zhou;Lu Xu;Lan Zhang;Zhang Le-tao;Li Liu;Xin Guo
中科院分区：
文献类型：
--
作者：
Linfang Cui;Penglei Wang;Yagang Zhang;Xinyuan Zhou;Lu Xu;Lan Zhang;Zhang Le-tao;Li Liu;Xin Guo
设计并开发了玻璃纤维增强β-成核PP复合材料的两步法制备工艺。互补法采用N，N ' -二环己基-2,6-萘-二甲酰胺（TMB-5）在马来酸酐接枝聚丙烯（PP-g-MA）存在下，通过挤出共混的方法将GFs增强和β-成核剂调节相结合。采用力学性能测试、广角x射线衍射、差示扫描量热法和扫描电镜研究了TMB-5和GFs对PP力学性能和结晶行为的影响。GFs和β-成核剂TMB-5对PP的力学性能和结晶行为有明显的互补作用。结果表明，在PP基体中加入20 wt %的GFs和0.1 wt %的TMB-5，可以显著提高PP基体的力学性能；与纯PP相比，拉伸强度提高了64.8%，弯曲模量提高了107.1%，缺口冲击强度提高了167.7%。TMB-5与GFs的结合不仅促进了界面粘附，而且显著提高了整体综合力学性能。互补工艺为开发具有平衡韧性和刚度的PP提供了另一种方法。©2017 Wiley期刊公司j:。变异较大。自然科学学报，2018,35(5):45768。
A two-step process for preparing glass fibers (GFs) reinforced β-nucleated PP composites was designed and developed. The complementary approach combined GFs reinforcement and β-nucleating agents regulation using N,N′-dicyclohexyl-2,6-napthalene-dicarboxamide (TMB-5) in the presence of maleic anhydride grafted polypropylene (PP-g-MA) through extrusion blending. The influence of TMB-5 and GFs on the mechanical properties and crystallization behavior of PP was studied by mechanical test, wide-angle X-ray diffraction, differential scanning calorimetry, and scanning electron microscopy. A distinct complementary effect of GFs and β-nucleating agent TMB-5 on mechanical properties and crystallization behavior of PP was observed. Results showed that addition of 20 wt % GFs and 0.1 wt % TMB-5 into PP matrix with the two-step process could lead to significant increase to its mechanical properties: specifically 64.8% improvement in tensile strength, 107.1% enhancement in flexural modulus, and 167.7% increasement in notched impact strength compared to that of neat PP. Furthermore, with the combination of TMB-5 and GFs, not only led to promoted interfacial adhesion, but also significantly improved overall comprehensive mechanical properties. The complementary process provided an alternative approach for the development of PP with balanced toughnesss and stiffness. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 45768.