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1)  melt strength
熔体强度
1.
Development of high melt strength polypropylene;
熔体强度聚丙烯的研制
2.
Increasing melt strength of polypropylene via reactive extrusion;
通过反应挤出提高聚丙烯的熔体强度
3.
Study on preparation of polypropylene with high melt strength;
熔体强度PP的制备研究
2)  high melt strength
高熔体强度
1.
The article was recounted capability and appliance of long chain branched high melt strength polypropylene in details, and it was also summarized the performance and so on of long chain branched high melt strength polypropylene.
文章对长链支化高熔体强度聚丙烯的研究及应用作了比较详尽的叙述,并对其性能方法进行了综述。
2.
The research and application of high melt strength polypropylene at home and abroad were reviewed.
综述了国内外高熔体强度聚丙烯(HMSPP)的研究进展和应用前景,重点介绍了为获得长链支化的高熔体强度聚丙烯一般采用的方法,如树脂掺混、射线辐射、化学交联和聚合过程中引发接枝等,并简述了国外高熔体强度聚丙烯在熔融热成型、挤出涂布和发泡等方面的应用。
3.
Modified PP product were analyzed by using kinds of methods in order to obtain PP modified rules, to develop high melt strength, ultra toughness, and high liquidity polypropylene and specific PP-R, and to improve process and mechanics properties.
利用本实验室独特设计制造的反应式挤出机,系统地研究了各种聚丙烯在反应挤出过程中的化学反应规律,并利用多种表征手段对挤出产物进行了深入分析,总结出对生产实践具有指导价值的反应规律,研发出高熔体强度聚丙烯、高流动性聚丙烯专用料和高流动性PP-R专用料,显著提高了聚丙烯的加工成型性能和力学性能,扩大了聚丙烯的应用范围。
3)  melting intensity
熔化强度
1.
To make the structure of cupolas meet the requirements of their optimum operation, the optimum design of melting zone diameter is shown by analysis of the internal relationship between the diameter and the melting intensity,and their variation.
通过分析熔化带直径与熔化强度之间的内在联系和变化规律 ,确定了冲天炉熔化带直径优化设计的途径及规
4)  weldline strength
熔接强度
1.
Experimental results indicate that(1) the predicted rules accord well with the actual ones;(2) the welding strength improves with the delay time of opening the valve gate;and(3) if the downstream valve gate does not open until the melt from the upstream valve gate passes it,the weldline strength is almost equal to that of the part in the location without weld line.
采用Sanchez-Lacombe晶格理论来预测顺序浇注成型条件下制品的熔接强度,综合考虑了熔接处温度和压力分布对粘结度的影响,并结合数值模拟技术预测了熔接线出现在不同位置时顺序浇注成型制品熔接强度的变化规律。
5)  high-melt-strength polypropylene
高熔体强度聚丙烯
6)  high melt strength PP
高熔体强度聚丙烯
1.
The kinetics of nonisothermal crystallization of high melt strength PP and conventional PP was studied by means of differential scanning calorimetry(DSC).
运用DSC手段研究了高熔体强度聚丙烯的非等温结晶行为 ,并与普通聚丙烯进行了对比。
2.
The key to improving the foaming properties of PP is the preparation of high melt strength PP (HMSPP).
综述了聚丙烯(PP)发泡材料的应用及其发展的优越性,分析了目前PP发泡材料制备过程中存在的问题,指出了改善PP发泡性能的关键是制备高熔体强度聚丙烯(HMSPP),介绍了国内外HMSPP的制备及其发泡的研究进展,指出硅烷接枝交联改性技术具有成本适中,产品质量好并容易控制的特点,是目前的HMSPP制备技术中最有希望的技术。
补充资料:熔体强度
分子式:
CAS号:

性质:塑料在熔融状态下的强度,有一种测定方法是将流出一定口径后的熔体用一定牵引力将其拉成丝,测定不被拉断时的最大牵引力来进行计算。它和熔体温度、挤出压力、牵拉速度等有关,了解熔体强度的大小对选择塑料成型加工条件有指导作用,特别对拉丝、成膜工艺更有直接意义。

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