综述了发泡高熔体强度聚丙烯材料的应用。
本发明涉及一种高熔体强度聚丙烯树脂及其制备方法。
The invention relates to a high melt strength polypropylene resin and the preparation method.
高熔体强度聚丙烯具有优异的物理机械性能，其发泡制品拥有广泛的用途。
High melt strength pp (HMSPP) had excellent physical and mechanical properties and its foamed products had wide applications.
高熔体强度聚丙烯(H MSPP)是聚丙烯的一种重要改性产品，具有广泛的用途。
High melt strength polypropylene (HMSPP) is an important product of polypropylene modification with wide application.
同时还介绍了高熔体强度聚丙烯在挤出发泡、热成型、挤出涂布以及吹塑薄膜等领域的应用情况。
The potential USES of high melt strength polypropylene in the field of extrusion foaming, thermoforming, extrusion coating and blown film were also introduced.
高熔体强度和热稳定性允许这些树脂较大的模具开口和高温画式的技术，从而增加处理速度使用。
The high melt strength and heat stability of these resins permit the use of relatively large die openings and high-temperature draw-down techniques, which increase processing rates.
文章综述了制备高熔体强度聚丙烯的制备方法，主要有直接聚合法、辐射接枝交联法、硅烷接枝交联法等。
The producing methods of HMSPP were discussed, including direct polymerization, radiation grafting and cross-linking, silane grafting and cross-linking, and so on.
综述了国内外高熔体强度聚丙烯的研究进展和应用前景，并简述了高熔体强度聚丙烯在挤出涂布和发泡等方面的应用。
The paper reviews the development and prospect for application of high melt strength polypropylene (HMSPP) home and abroad, and briefly introduces the USES for extrusion coating and foaming of HMSPP.
寻找简单易行，成本低廉，行之有效的高熔体强度聚丙烯(HMSPP)的制备方法是制备聚丙烯发泡材料的最关键的技术。
It is the most pivotal technology to research for a simple, low costing and effective method of preparing high-melt-strength PP (HMSPP).
通过反应挤出法对聚丙烯（PP）进行硅烷接枝交联改性获得高熔体强度PP（HMSPP），并对HMSPP的发泡性能及影响因素进行了研究。
The producing methods of HMSPP were discussed, including direct polymerization, radiation grafting and cross-linking, silane grafting and cross-linking, and so on.
但由于PP的高结晶性，熔体强度低，其发泡成型较为困难。
Nevertheless foaming processing of PP is very difficult because of its high crystallinity and poor melt strength.
用双螺杆挤出机和动态硫化技术制备出了综合力学性能好、熔体强度高的聚丙烯复合材料。
Dynamic - vulcanization PP composites were prepared with twin - screw extruder and dynamic - vulcanization technology.
研究结果表明：相同熔体流动速率的CR -PP与氢调法pp比较，CR - PP的冲击强度高，氢调法pp的断裂伸长率高。
The results showed that in the same MFR, CR-PP has higher impact strength and HM-PP has higher elongation.
接枝率高的PP，可提高PP体系的熔体强度和拉伸黏度及其应变硬化。
The PP with high grafting rate can improve the melt strength and the extensional viscosity of a PP system and the strain hardening.
接枝率高的PP，可提高PP体系的熔体强度和拉伸黏度及其应变硬化。
The PP with high grafting rate can improve the melt strength and the extensional viscosity of a PP system and the strain hardening.
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