交聯(lián)聚乙烯電纜ppt課件-資料下載頁(yè)
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【正文】 of crosslinking but does not affect the gel content of fully crosslinked graft copolymer Influence of the Process Conditions on PE Crosslinking ? Process conditions also have a strong impact on moisture crosslinking and final performance. Two key parameters are water temperature and wall thickness of the extruded profile. Water temperature Wall Thickness Wall Thickness壁厚 ? The Crosslinking reaction is fast but diffusion of moisture into the material is a limiting factor. For this reason, the wall thickness of the extruder parts have a strong influence on the time needed to crosslink it. High Speed Line No Special Equipment Required ? By adopting a SIOPLAS process, converters have the ability to use mercially available pregrafted polyethylene (Silanized PE) that can be premixed with a catalyst masterbatch and colormasterbatch. Increased Maximum Operating Tempeatures ? PEX continuous service temperature is around 100120176。 C. gel influences thermomechanical performances of PEX. Increased Chemical and Environmental Crack Resistance Better Tensile and Impact Performance
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