Methods This composite with single particle-like Hydroxyapatite embedded in the Poly (DL-lactic acid) (PDLLA) matrix was prepared by applying the uniform compoundingtechnique.
方法利用均匀复合技术，制备出羟基磷灰石在聚乳酸基体中呈单颗粒的复合材料；
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The compoundingtechnique of PQ was described and its influences to cement thickening time and application in high density cement system were evaluated, as well as its temperature sensitivity.
The technique process of compounding unit of catalytic agent of HDPE plant, control procedures and requirements are introduced. Relevant control strategy is studied and made.