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Effect of Chemical Blowing Agent on the PVC Cellular Coating Extrusion

机译：化学发泡剂对PVC细胞涂层挤出的影响

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摘要

Depending on the type and application, the coatings of power, electric, telecommunication cables as well as other types of conduits are made of various kinds of polymer plastics. However, most often, because of good mechanical properties and many other advantages, they are first of all made from polyvinyl chlorine (PVC). This paper contains characteristics of the developed cellular extrusion of cable coatings, as well as specification of the blowing agent (BA) used and selected research results of the obtained cellular extrusion product. In technological tests the coating extrusion technological line was used. The material was modified with a new blowing agent of exothermic distribution of process characteristics, which was introduced into the material in quantities from 0.2 to 0.6% wt. The amount of blowing agent used has a direct impact on the density and structure of the received result for the extrusion of modified polymers. The cellular structure of the cellular coatings was presented. The results of the study are thin-walled properties of single- and double-layer cellular outer coatings, forming an outer surface on a steel wire. The research on the structure of manufactured materials, density and the degree of porosity, water and oil absorptivity, mechanical strength is presented.
机译：根据类型和应用，电源，电信电缆以及其他类型的导管的涂层由各种聚合物塑料制成。然而，大多数情况下，由于机械性能和许多其他优点，它们首先由聚乙烯氯（PVC）制成。本文载有电缆涂层的发达蜂窝挤出的特性，以及所用的发泡剂（BA）的规格，以及所获得的细胞挤出产品的研究结果。在技​​术试验中，使用涂料挤出技术线。用新的吹塑剂的处理特性的新发泡剂改性材料，其将量为0.2至0.6％wt。所用的发泡剂的量直接影响所接收结果的挤出的改性聚合物的收到结果的密度和结构。提出了细胞涂层的细胞结构。该研究的结果是单层和双层蜂窝外涂层的薄壁性质，在钢丝上形成外表面。提出了制造材料，密度和孔隙度，水和吸油率，机械强度的结构研究。

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