Effect of different peroxide initiators on the reaction extrusion of polypropylene-graft-cardanol and its compatibilization on PP/PC

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• 作者：Fengqin Yin (1)
  Qinhui Chen (1) (2)
  Jinhuo Lin (1) (2)
  Yi Deng (1)
  Xinggong Mao (1)
  
• 关键词：Polypropylene ; Cardanol ; Reactive extrusion ; Peroxide initiators ; Compatibilization
• 刊名：Journal of Polymer Research
• 出版年：2014
• 出版时间：April 2014
• 年：2014
• 卷：21
• 期：4
• 全文大小：1,045 KB
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• 作者单位：Fengqin Yin (1)
  Qinhui Chen (1) (2)
  Jinhuo Lin (1) (2)
  Yi Deng (1)
  Xinggong Mao (1)
  
  1. College of Material Science and Engineering, Fujian Normal University, Fuzhou, People’s Republic of China
  2. Fujian Key Laboratory of Polymer Materials, Fuzhou, People’s Republic of China
  
• ISSN：1572-8935

文摘

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.