The isotactic polypropylene prepared under the supercritical conditions was compared with that obtained by a conventional slurry polymerization with respect to the isothermal crystallization kinetics by Perkin Elmer differential scanning calorimetry(DSC) and Nikon E600 optical polarimeter(OP) with on-line hot stage,respectively.

The Cp 2ZrCl 2/MAO catalyst was evaluated with ethylene slurry polymerization by pilot test.

Behavior of propylene slurry polymerization was investigated at 15 ℃ , 0.

Experimental investigation and finite element simulation about RC T-beams strengthened with wire cable mesh and polymer mortar;

The research on adhesion of polymer mortar and concrete has important theoretical and practical meanings for the repairing and strengthening concrete structures.

On the bassis of test researches,a method of calculating for the bending ultimate strength of RC beams strengthened with high-strength steel wire mash and polymer mortar is put forward.

In view of high grinding efficiency of stirring mill and the character of industrial waste residue containing some water,the author tried to process industrial waste residue by means of wet milling with stirring mill and manufacture one kind of mineral admixture slurry.

A kind of mineral admixture slurry is manufactured by the method of wet milling with stirring mill.

Survey on the Formation, Development of Polymer Mud Technology;

Evaluation of ultra-low permeability reservoirs by electricparameter variation of damaging polymer mud in the petrophysical experiment;