Effect of different peroxide initiators on the reaction extrusion of polypropylene-graft-cardanol and its compatibilization on PP/PC
Effect of different peroxide initiators on the reaction extrusion of polypropylene-graft-cardanol and its compatibilization on PP/PC
复制标题
不同过氧化物引发剂对聚丙烯接枝腰果酚反应挤出及其对PP/PC相容性的影响
DOI：
10.1007/s10965-014-0411-x
复制
发表时间：
2014-03
影响因子：
2.8
通讯作者：
Mao, Xinggong
中科院分区：
文献类型：
--
作者：
Yin, Fengqin;Chen, Qinhui;Lin, Jinhuo;Deng, Yi;Mao, Xinggong
以过氧化二异丙苯（DCP）、过氧化苯甲酰（BPO）和过氧化二叔丁基（dTBP）为引发剂，采用反应挤出法制备了腰果酚接枝聚丙烯（CAPP）。研究了引发剂种类对接枝率、熔体流动指数（MFI）、等温结晶性能和毛细管流变性能的影响。在DCP存在下，可获得接枝率提高、MFI值稳定的CAPP。腰果酚接枝到聚丙烯（PP）上为结晶过程中晶核的形成和球晶的生长提供了“杂质”。另一方面，由于腰果酚接枝到PP上使分子间的距离变宽，CAPP的剪切应力和粘度都比PP低。特别是，以DCP为引发剂的CAPP的剪切应力和粘度低于以BPO或dTBP为引发剂的CAPP，这归因于DCP的最佳引发。采用力学性能测试和扫描电镜（SEM）研究了以过氧化二异丙苯（DCP）为引发剂的CAPP对PP/PC的增容作用。结果表明，CAPP增强了PP/PC的界面结合力，提高了PP/PC的力学性能。
Polypropylene-graft-cardanol (CAPP) was prepared by reactive extrusion in the presence of three kinds of initiators: dicumyl peroxide (DCP), benzoyl peroxide (BPO) and di-tert-butyl peroxide (dTBP). The effects of initiator type on grafting degree, melt flow index (MFI), isothermal crystallization and capillary rheological properties were investigated. CAPP with an improved level of grafting and stabilized value of MFI was obtained in the presence of DCP. The cardanol grafted onto polyproplylene (PP) afforded an “impurity” for the formation of a crystallization nucleus and spherulite growth during the crystallization process. On the other hand, the shear stress and viscosity of CAPPs were lower than PP because the cardanol grafted onto PP broadened the distance between the molecules. In particular, the shear stress and viscosity of CAPP using DCP as the initiator was lower than that of CAPP by using BPO or dTBP attributed to the optimum initiation of DCP. The effect of CAPP using DCP as the initiator on the compatibilization of PP and bisphenol-A polycarbonate (PC) was investigated with a mechanical properties test and scanning electron microscopy (SEM). It could be found that the CAPP enhanced the interfacial adhesion between PP/PC and improved the mechanical properties.
登录
查看更多内容
影响因子：
4.6
作者：
Li, Shuzhao;Xiao, Miaomiao;Zheng, Anna
通讯作者：
Zheng, Anna
影响因子：
4.2
作者：
Renshi Zhang;Xue‐Kun Li;G. Cao;Yun-hai Shi;Honglai Liu;W. Yuan;G. W. Roberts
通讯作者：
Renshi Zhang;Xue‐Kun Li;G. Cao;Yun-hai Shi;Honglai Liu;W. Yuan;G. W. Roberts
影响因子：
4.6
作者：
Li, Jia-Lin;Xie, Xu-Ming
通讯作者：
Xie, Xu-Ming
影响因子：
5.5
作者：
Auhl, D;Stange, J;Lunkwitz, K
通讯作者：
Lunkwitz, K
影响因子：
6
作者：
Szkudlarek, E.;Piorkowska, E.;Gadzinowska, K.
通讯作者：
Gadzinowska, K.