考察了苯乙烯-二元乙丙橡胶嵌段共聚物(SEP)和三元乙丙橡胶(EPDM)对聚丙烯(PP)的增韧作用。
The effect on the toughening of polypropylene (PP) by styrene-ethyl ene propylene diblock copolymer (SEP) as well as EPDM was studied.
对于非均质岩心，聚合物对驱油效率的贡献大于表面活性剂的贡献，此外还对三元段塞注入的大小和浓度进行了优化。
To heterogeneous core, the contribution of polymer to the displacement efficiency is higher than that of surfactant. The size of the ASP slug and the concentration of chemicals were also optimized.
热施工密封胶的主体材料主要是异丁烯类聚合物、三元乙丙橡胶和热塑性的苯乙烯嵌段共聚物。
Heat of the main construction material sealant mainly isobutene polymer, EPDM rubber and thermoplastic styrene block copolymer.
对于非均质性严重的油藏，先调剖再注三元复合体系段塞，这是提高化学驱油效果的重要途径。
For highly heterogeneous reservoirs, chemical flooding after profile control is an important way for improving oil displacement effectiveness.
结果表明，本文提出的优化设计方法是风洞三元收缩段气动设计较好的有效的气动设计手段。
The optimum aerodynamic design plan has been given as well as the numerical computed results, analyzing process, and typical calculated examp…
结果表明，本文提出的优化设计方法是风洞三元收缩段气动设计较好的有效的气动设计手段。
The optimum aerodynamic design plan has been given as well as the numerical computed results, analyzing process, and typical calculated examp…
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