Effects of interfacial adhesion on properties of polypropylene/Wollastonite composites

Minjie Chen, Chaoying Wan, Wenjuan Shou, Yinxi Zhang, Yong Zhang, Jianmin Zhang

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)

Abstract

Wollastonite reinforced polypropylene (PP/CaSiO3) 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/CaSiO3 composites. There is stronger interfacial adhesion between silane-treated CaSiO3 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 CaSiO3 particles on the crystallization of PP was studied by using differential scanning calorimetry (DSC). The introduction of CaSiO3 particles does not affect the crystallization temperature and crystallinity of PP matrix significantly.
Original languageEnglish
Pages (from-to)1718-1723
JournalJournal of Applied Polymer Science
Volume107
Issue number3
DOIs
Publication statusPublished - 2007

Fingerprint

Dive into the research topics of 'Effects of interfacial adhesion on properties of polypropylene/Wollastonite composites'. Together they form a unique fingerprint.

Cite this