Development of impact propylene copolymer with high melt flowability;

Homogeneous design of experimentation was applied to gaseous copolymerization of ethylene-propylene over spherical Ziegler-Natta catalyst to prepare ethylene-propylene impact copolymer.

Flame-retardant ABS toughened by the impact modifier and CPE for specially-used engineering plastics was prepared from ABS757 matrix and BA-59P/Sb 2O 3 with the addition of the high-efficiently synergistic flame retardant system,and its retardant property was examined.

The molecular composition and molecular structure of MBS,CPE and ACR,which were used as the impact modifier of PVC,were analyzed,and their impact modification mechanism were studied as well as their influences on the low temperature impact strength,weather resistence,Vicat softening point and toughness of PVC products.

Study on improving impact resistance of acrylic clear powder coatings;

Large diameter synthetic fiber reinforced concrete was made for measuring the properties of fresh concrete mixture and the impact resistance of the hardened samples.

By effective bonding ,toughness and impact resistance of steel fiber are greatly improved and materials composed with organic & inorganic substances and metallic & non metallic materials possess high impact resistance & abras.