关于聚乙烯/超高分子量聚烯混合物的机械,热和风病学特性
Vishal Gavande1, Mingi Jeong1, Won-Ki Lee1
1Division of Polymer Engineering, Pukyong National University, Busan 48513, Republic of Korea.
Polymers
|November 14, 2023
概括
这项研究探讨了将超高分子量聚烯 (UHMWPP) 与聚乙烯 (PE) 和无化物移植聚乙烯 (mPE) 混合. 在50重%的UHMWPP中发现了最佳的机械性能,尽管延伸度下降了.
科学领域:
- 聚合物科学 聚合物科学
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
背景情况:
- 超高分子量聚烯 (UHMWPP) 提供卓越的机械性能和性.
- 将UHMWPP与传统聚合物如聚乙烯 (PE) 和无化接种聚乙烯 (mPE) 混合,可以提高材料性能.
- 了解这些聚合物混合物的特性相关性对于材料设计至关重要.
研究的目的:
- 研究UHMWPP/PE和UHMWPP/mPE混合物的机械,热和质性质.
- 为了确定全面的机械性质的最佳UHMWPP含量.
- 检查混合物中的机械和气质特性之间的关系.
主要方法:
- 化混合UHMWPP与PE和mPE在不同比例使用机.
- 机械性能 (抗拉强度,延长) 的表征.
- 评估热和热学性质,包括储存模量和融化指数.
主要成果:
- 在大约50%的UHMWPP中,可以获得最佳的全面机械性能.
- PE/UHMWPP混合物显示,随着UHMWPP含量下降,拉伸强度显著下降.
- mPE/UHMWPP混合物在不同的UHMWPP含量中显示出拉伸强度的最小变化.
- 随着PE/UHMWPP混合物的HMWPP含量,储存模块显著增加.
- 当UHMWPP含量超过10 wt%时,融化指数大幅下降.
结论:
- 将UHMWPP与PE和mPE混合提供了一条改善材料性能的途径.
- 选择聚乙烯矩阵 (PE与mPE) 显著影响机械响应UHMWPP添加.
- 加入UHMWPP会影响混合物加工能力,如在较高负载下降的融指数所示.
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