Wei GONG, Ke-jia LIU, Chun ZHANG, Jian-hua ZHU, Li HE. Effect of Inorganic Powder on Mechanical Behavior in Microcellular Foam PP[J]. Polymer Bulletin, 2011,24(12):109-114.
Modified inorganic powder materials ( one-dimensional Mg SO
4
whisker
two-dimensional Mica and three-dimensional SiO
2
) was added into polypropylene with 5 % content. The microcellular foam PP composite was made under the condition of twice-open mold. According to the principle of interfacial adhesion
Liquid-solid interface PP composite system was calculated adhesion work by measurements of the contact angle. Taking heterogeneous nucleation theory and reinforcement effect
mechanical behavior of microcellular foam PP composite was analyzed by inorganic powder material
The results showed that PP/Mica composite system showed the maximum impact strength
which is improved by 79.17 %.It is not only to reduce cost and but also to effects enhance. So Micapowder is the best two dimension filler on enhancement in foamed PP composites.