Effects of interfacial adhesion on properties of polypropylene/Wollastonite composites | Zendy

Chen Minjie | Zendy; Wan Chaoying | Zendy; Shou Wenjuan | Zendy; Zhang Yinxi | Zendy; Zhang Yong | Zendy; Zhang Jianmin | Zendy

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Effects of interfacial adhesion on properties of polypropylene/Wollastonite composites

Author(s) -

Chen Minjie,

Wan Chaoying,

Shou Wenjuan,

Zhang Yinxi,

Zhang Yong,

Zhang Jianmin

Publication year - 2007

Publication title -

journal of applied polymer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.575

H-Index - 166

eISSN - 1097-4628

pISSN - 0021-8995

DOI - 10.1002/app.23535

Subject(s) - materials science , composite material , differential scanning calorimetry , dynamic mechanical analysis , polypropylene , crystallinity , wollastonite , maleic anhydride , adhesion , ultimate tensile strength , crystallization , scanning electron microscope , polymer , chemical engineering , copolymer , chemistry , raw material , organic chemistry , engineering , thermodynamics , physics

Wollastonite reinforced polypropylene (PP/CaSiO 3 ) composites were prepared by melt extrusion. A silane coupling agent and a maleic anhydride grafted PP (PP‐ g ‐MA) were used to increase the interfacial adhesion between the filler and the matrix. The increased adhesion observed by scanning electron microscopy (SEM) resulted in improved mechanical properties. A model was applied to describe the relationship between the interfacial adhesion and tensile properties of PP/CaSiO 3 composites. There is stronger interfacial adhesion between silane‐treated CaSiO 3 and polymer matrix containing PP‐ g ‐MA as a modifier. Results of dynamic mechanical thermal analysis (DMTA) showed that stronger interfacial adhesion led to higher storage modulus. The influence of CaSiO 3 particles on the crystallization of PP was studied by using differential scanning calorimetry (DSC). The introduction of CaSiO 3 particles does not affect the crystallization temperature and crystallinity of PP matrix significantly. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci, 2008

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