辐照交联LDPE/HDPE发泡材料的制备与性能

Preparation and Properties of Irradiated Cross-Linked LDPE/HDPE Foam Materials

钟进福 ¹徐杰 ¹李广富 ¹黄聪 ¹付栋梁¹

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作者信息

1. 浙江润阳新材料科技股份有限公司,浙江湖州,313105
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摘要

采用熔融共混法和辐照交联技术制备了低密度聚乙烯(LDPE)/高密度聚乙烯(HDPE)发泡材料,研究了 HDPE 用量对 LDPE/HDPE发泡材料加工流动性、热性能、流变性能、发泡行为、力学性能和导热性能的影响.结果表明:HDPE 的加入显著提高了 LDPE/HDPE发泡材料的熔体流动速率和结晶度.与纯 LDPE 发泡材料相比,当 HDPE 的质量分数为 30%时,LDPE/HDPE发泡材料的拉伸强度提高了 32.3%,压缩强度提高了 67.5%,邵氏硬度提高了 14.3%,回弹性下降了16.0%,综合性能最佳.

Abstract

Low density polyethylene(LDPE)/high density polyethylene(HDPE)foam materials were prepared using melt blending and irradiation crosslinking techniques.Effects of HDPE content on processing liquidity,thermal properties,rheological properties,foaming behavior,mechanical properties and thermal conductivity of LDPE/HDPE foam materials were studied.The results show that the addition of HDPE significantly improves the melt flow rate and crystallinity of LDPE/HDPE foam materials.Compared with pure LDPE foam material,when the mass fraction of HDPE is 30%,the tensile strength of LDPE/HDPE foam material increases by 32.3%,compressive strength increases by 67.5%,Shore hardness increases by 14.3%and resilience decreases by 16.0%,indicating the best overall performance.

关键词

低密度聚乙烯/高密度聚乙烯/力学性能/导热性能/发泡行为

Key words

low density polyethylene/high density polyethylene/mechanical property/thermal conductivity/foam behavior

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出版年

2024

现代塑料加工应用

中国石化扬子石油化工有限公司中国石化集团资产经营管理有限公司扬子石化分公司

现代塑料加工应用

CSTPCD北大核心

影响因子：0.343

ISSN：1004-3055

参考文献量3

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