毕业论文 聚烯烃粘土纳米复合材料研究进展.doc

毕业论文 聚烯烃粘土纳米复合材料研究进展.doc毕业论文
聚烯烃粘土纳米复合材料研究进展
摘要
在近几年,无机/有机纳米复合材料吸引了许多研究者的兴趣,因为他们常常能表现出令人意向不到的从两种化合物衍生而来的高效的协同性质。这些很有前景的复合材料体系中的一个即是一种混合物,这种混合物是以有机聚合物和无机由层状结构组成的粘土矿物,它属于2:1型层状硅酸盐的一种。现在对聚合物/粘土纳米复合材料的研究成为热点。被驱散的相的尺度和微观结构极大的影响着聚合复合材料的性质,聚合物/粘土纳米复合材料至少有一个极好的尺度,尤其是在1-10nm之间,因为聚合物/粘土纳米复合材料的纳米结构,它有独特的性质,如文献所报道的,聚合物/粘土纳米复合材料改进了机械和热力学性质、抗气体渗透性和阻燃性。本综述介绍了聚烯烃/粘土纳米复合材料相关的基本概念、形成理论、结构特性及其表征方法,简要介绍了制备聚烯烃/粘土纳米复合材料催化剂的选择;对聚烯烃/粘土纳米复合材料的物理力学及化学各项性能做了深刻的探讨;并对近年来聚丙烯、聚乙烯、聚苯乙烯/粘土纳米复合材料的研究进展进行了综述;最后对聚烯烃/粘土纳米复合材料的发展趋势作以简要预测。
关键词:聚烯烃;粘土;纳米复合材料
Abstract
In recent years, organic-anic posites have attracted great interest from researchers since they frequently exhibit unexpected hybrid properties synergistically derived from ponents. One of the most posites systems would be hybrids based anic polymers and anic clay minerals consisting of layered structure, which belong to the general family of 2:1 layered silicates. There is a great interest in polymer-clay posites. The dimension and microstructure of the dispersed phase significantly influence the properties of posites. Polymer-clay posites have at least one ultra-fine dimension typically on the order of 1 to 10 nm. Because of the nanoscale structure, polymer-clay posites possess unique properties. As reported in the literatures, polymer-clay posites have improved mechanical and thermal properties , gas permeability resistance and fire retardancy .This review introduced the Polyalkene-clay osites related and basic concept, the formation theories, the structure characteristic and its token methods, the synopsis introduces to make the choice of have the catalyst of Polyalkene-clay osites;Did the deep study to Polyalkene-clay osites physics mechanics and various functions of bine to in recent years polypropylene, ethylene,styrene-clay osites of research progress carried on the overview;Make to the Polyalkene-clay osites development trend finally to predict with the synopsis.
Key words:alkene; clay; osites
引言
聚烯烃是一类综合性能优良、应用十分广泛的通用树脂。由于其具有众多的优良特性,使得其发展十分迅速,按体积计,