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Latest Research Development of Polypropylene/Inorganic Nanocomposites

OU Baoli1,2,LI Duxin1(1 State Key Laboratory of Powder Metallurgy,Central South University,Changsha 410083;2 College of Chemistry and Chemical Engineering,Hunan University of Science and Technology,Xiangtan 411201)  
Small amount of nanoparticles can reinforce and toughen polypropylene(PP) and have much effect on the machanical properties,crystallization behavior,anti-aging and antibacterial properties of PP matrix.High performances and multifunctional PP/inorganic nanocomposites can be prepared by modification of PP with nanoparticles,which is a new generation composite and has attached great interests.The newest developments,preparations,machanical properties,morphology,crystallization and anti-aging properties of PP/inorganic nanocomposites are summarized and discussed in this paper.Research results indicate that low loading of inorganic nanoparticles may lead to tremendous increase of comprehensive properties,but the surface-modification and preparation methods reported in many articles do not resolve the aggregation of nanoparticles.The dispersion of nanoparticles in PP matrix needs to be improved especially in the implementation of industry.
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