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首页> 外文期刊>RSC Advances >Enhanced strength and foamability of high-density polyethylene prepared by pressure-induced flow and low-temperature crosslinking
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Enhanced strength and foamability of high-density polyethylene prepared by pressure-induced flow and low-temperature crosslinking

机译：通过压力诱导的流动和低温交联制备高密度聚乙烯的增强强度和可发泡性

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摘要

We report a high-performance high-density polyethylene (HDPE) with significantly enhanced mechanical strength by means of pressure-induced flow (PIF) and low-temperature crosslinking treatment. The tensile and flexural strengths increased from 23.5 and 36.2 MPa, up to 74.8 and 78.6 MPa, respectively. This was achieved by the elongated and flattened ‘brick-and-mud’ like crystal structure of HDPE occurred during PIF, and an adequate crosslinking network that was formed in the amorphous region beneath the melting point. Furthermore, high strength foams of this material could also be produced under supercritical CO _(2) batch foaming in solid-state.
机译：通过压力诱导的流动（PIF）和低温交联处理，我们报告了一种高性能的高密度聚乙烯（HDPE），具有显着提高的机械强度和低温交联处理。拉伸和弯曲强度分别从23.5和36.2MPa增加，高达74.8和78.6MPa。这是通过在PIF期间发生HDPE的细长和扁平的“砖和泥浆”的晶体结构来实现，以及在熔点下方的非晶区域中形成的足够交联网络。此外，该材料的高强度泡沫也可以在固态中的超临界CO_（2）批次发泡之下。

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