Extrusion of self-reinforced thermoplastic composites illustrated by high density polyethylene
Extrusion of self-reinforced thermoplastic composites illustrated by high density polyethylene
复制标题
以高密度聚乙烯为例的自增强热塑性复合材料的挤出
DOI：
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发表时间：
1978
期刊：
影响因子：
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通讯作者：
R. Porter
中科院分区：
文献类型：
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作者：
A. E. Zachariades;R. Ball;R. Porter
描述了一种由芯部和护套组成的高密度聚乙烯自增强透明复合材料的固态共挤出方法。高密度聚乙烯在熔点以下被共挤。共柱复合材料具有高抗拉模量和强度，芯层和护套组分具有高取向，并且具有相当大的抗芯/护套分离性。这种抗拔出性是由于复合材料共挤压过程中产生的压缩和径向应力，而不是由于外延结晶的结合。
A method is described for solid state coextrusion of self-reinforced and transparent composites for high density polyethylene composed of core and sheath components. The high density polyethylenes are coextruded below their melting points. The cocylindrical composites have a high tensile modulus and strength, a high orientation for both core and sheath components and possess considerable resistance to core/sheath separation. This resistance to pull-out is due to compressive and radial stresses developed during the composite coextrusion and not to bonding by epitaxial crystallization.