Based on the preparation process of original catalyst for propylene polymerization, a new catalyst for the propylene polymerization was prepared by adding some modifier.
在原聚丙烯合成催化剂的基础上，通过在制备过程中加入调节剂，制备了一种新型催化剂。
The full biomass-based composite material of the invention is prepared by natural plant fiber (material A), carboxylation polyether interface modifier (material B) and polylactic acid.
本发明采用预处理后的天然植物纤维（A料）与羧化聚醚界面改性剂（B料）以及聚乳酸制备复合材料。
Silicon oil based magnetic fluid was prepared using TE and silicon surfactant EY as modifier.
以TE和硅油表面活性剂ey为改性剂制备了硅油基磁性流体。
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