聚烯烃弹性体（poe）.docVIP

聚烯烃弹性体（poe） This article is contributed by chencrusader DOC documents may experience poor browsing on the WAP side. It is recommended that you first select TXT, or download the source file to the local view. Elastomer (Polyolefin) (POE) is a thermoplastic elastomer with a narrow molecular weight distribution and uniform short branched distribution with metallocene catalyst as a catalyst for DOW chemical company in the United states. The main properties of this kind of elastomer are outstanding, and the performance indexes in many aspects are more than those of ordinary elastomers. The molecular structure of POE and three ethylene propylene diene rubber (EPDM), so the POE will also have the excellent performance of aging, ozone resistance, chemical resistance, through crosslinking for POE material, heat temperature is increased, the permanent deformation decreases, tensile strength, tear strength and main mechanical properties are improved to a great extent. Multi purpose POE elastomers can exceed PVC, EVA, SBR, EMA, and EPDM, and POE may replace the traditional EPDM in the future. Because of its excellent properties, POE has been widely used in automobile industry, wire and cable sheath, plastic toughening agent and so on. Because POE has higher strength and elongation, but also has good anti-aging properties, the direct use of POE can be processed into products, the strict requirements of the product grade, some permanent deformation heat, can greatly improve the production efficiency, the material can be reused. The study of crosslinked ordinary polyethylene has been going on for decades, but few reports have been made on crosslinked metallocene elastomers. The structure characteristics of the structure and properties of 1 POE 1.1 POE POE has excellent performance, can realize high speed extrusion, with the following characteristics: (1) ethylene octene soft chain chain coil structure and crystallization as physical crosslinking points, which has excellent toughne