A hot-melt adhesive for corrosion protection of pipeline was prepared by grafted polymerization of maleic anhydride and fused EVA resin with tackifying resin,filler and other auxiliary agents in the presence of organic peroxide.

Did parallel experiments in which EVA resin with α-pinene resin and β-pinene resin was respectively blended.

The compatibility of PC/LDPE blends can be increased by maleated ethylene_propylene _diene mischpolymer (M_EPDM).

On the basis of the characteristic of the three dimention fabric,the paper investigates resin systems of the RTM processes,which mould the three dimention composite.

A resin system is composed of resins,curing agents and accelerants.

Results suggest that under the individual influence of the chemical mechanism of viscous increase,the viscosity of the resin system slowly increases with the increase of isothermal conversion,and then increases quickly when the conversion reaches a certain extent.