首先，用向上熔融纺丝和拉伸致孔法制得聚乙烯中空纤维膜。
At first, we produced the polyethylene microporous hollow fiber membrane by ascending melting filature and made micropore by drawing.
研究了聚乙烯蜡（PEW）与马来酸酐（MAH）熔融接枝反应，在PEW分子链上引入了极性基团。
The frit grafted reaction on PEW and MAH was studied, in which polarity groups were introduced.
将各组分按所述量混合后熔融共混而制得本发明聚乙烯组合物。
All components are mixed according to the parts by weight and then melted to obtain the polyethylene composition.
研究了不同螺杆构型的混合性能以及低密度聚乙烯熔融接枝马来酸酐的过程，探讨了不同螺杆构型的混合性能与接枝反应接枝率的关系。
The mixing performance of different screw configurations of a co-rotating twin screw extruder and the grafting reactive extrusion of PE-LDg-MAH were investigated.
通过DSC研究了氯化聚乙烯的熔融行为，观察到氯化聚乙烯存在结晶和共结晶；
The melting behavior was also studied by DSC. Crystalline and cocrystalline was found.
借助于装有玻璃视窗的可视化啮合同向双螺杆挤出机，对高密度聚乙烯(HDPE)颗粒在螺纹元件组合中的熔融过程进行了研究。
Extrusion of HDPE pellets in flight elements combination is studied by visualized co rotating twin screw extruder. Results show that pellets have little deformation in flight elements combination.
方法：以聚乙烯吡咯烷酮（PVP）、聚乙二醇-6000（PEG-6000）为载体，溶剂法和溶剂熔融法制备固体分散体，并进行体外溶出度研究。
Method: carvedilol solid dispersions were prepared by solvent-melting and coevaporation methods with PEG-6000 and PVP as carriers, the study on the dissolution was conducted in vitro.
方法：以聚乙烯吡咯烷酮（PVP）、聚乙二醇-6000（PEG-6000）为载体，溶剂法和溶剂熔融法制备固体分散体，并进行体外溶出度研究。
Method: carvedilol solid dispersions were prepared by solvent-melting and coevaporation methods with PEG-6000 and PVP as carriers, the study on the dissolution was conducted in vitro.
应用推荐