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FUSED FILAMENT FABRICATION MANUFACTURING METHOD AND POLYMER BLEND USED THEREIN

机译:其中使用的熔丝丝制造制造方法和聚合物共混物

摘要

A method of fused filament fabrication (FFF) additive manufacturing comprises employing a thermoplastic blend comprised of high density polyethylene and a second thermoplastic polymer, wherein the second polymer is a low density polyethylene (LDPE), functionalized polyolefin or combination thereof and the amount of high density polyethylene to the amount of second thermoplastic polymer by weight is a ratio from 1.5/1 to 20/1. LDPE means a polyethylene that have been radically polymerized at high pressure. The method allows for the additive manufacturing article that retains the desirable mechanical properties of HDPE without experiencing the problems inherent in FFF printing of HDPE or use of solid fillers. In a particular embodiment, the additive manufactured article has a continuous phase and the second thermoplastic polymer is present as a discontinuous phase within the additive article manufactured article and the filament used to make the article.
机译:熔融丝制造(FFF)添加剂制造的方法包括采用由高密度聚乙烯和第二热塑性聚合物组成的热塑性共混物,其中第二聚合物是低密度聚乙烯(LDPE),官能化聚烯烃或其组合和高的量密度聚乙烯重量的第二热塑性聚合物的量为1.5 / 1至20/1的比例。 LDPE是指在高压下基于自由聚合的聚乙烯。该方法允许添加剂制造制品,其保留HDPE的理想机械性能,而不经历FFF印刷HDPE或使用固体填料所固有的问题。在一个具体实施方案中,添加制造的制品具有连续相,第二热塑性聚合物作为不连续的相在添加物品制品和用于制造制品的长丝中存在。

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