云母填充HDPE共混物的性能研究

张云轩, 李英才, 季晨晓, 齐勇, 刘欣

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塑料科技 ›› 2024, Vol. 52 ›› Issue (10) : 7-11. DOI: 10.15925/j.cnki.issn1005-3360.2024.10.002
理论与研究

云母填充HDPE共混物的性能研究

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Study on Properties of Mica-Filled HDPE Blends

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摘要

通过熔融共混的方法制备不同粒径、不同径厚比的高密度聚乙烯(HDPE)/云母共混物。通过扫描电子显微镜(SEM)、万能试验机、差示扫描量热仪(DSC)等设备对共混物的微观形貌、力学性能、热性能等材料性能特征进行表征分析。结果表明:400目和2 500目的云母在HDPE基体中都可以均匀分散;当400目云母添加量为10份时,共混物的拉伸强度达到最大,最大值为65.5 MPa;当400目云母添加量为20份时,弯曲模量高达807.0 MPa。冲击强度随云母添加量增加而降低。共混物的熔融温度、结晶起始温度和热变形温度随云母添加量增加而略有提高。当添加400目云母15份时,熔体流动速率降低至2.1 g/10 min。

Abstract

High-density polyethylene (HDPE)/mica blends with varying particle sizes and diameter-to-thickness ratios were prepared using the melt blending method. The microstructure, mechanical, and thermal properties of the blends were characterized and analyzed using a scanning electron microscopy (SEM), a universal testing machine, and a differential scanning calorimetry (DSC). The results showed that both 400-mesh and 2 500-mesh mica particles could be uniformly dispersed within the HDPE matrix. The tensile strength of the blends reached a maximum value of 65.5 MPa when the 400-mesh mica additive amount was 10 phr, and the flexural modulus of the blends was as high as 807.0 MPa when the 400-mesh mica additive amount was 20 phr. The impact strength decreased with the increase of mica additive amount. The melting temperature, crystallization initiation temperature, and heat deflection temperature slightly increased with the increase of mica content. The melting flow rate of the 400-mesh mica blend decreased to 2.1 g/10 min when the 400-mesh mica additive amount was 15 phr.

关键词

高密度聚乙烯 / 云母 / 物理性能

Key words

HDPE / Mica / Physical property

中图分类号

TQ325.12 / TB332

引用本文

导出引用
张云轩 , 李英才 , 季晨晓 , . 云母填充HDPE共混物的性能研究. 塑料科技. 2024, 52(10): 7-11 https://doi.org/10.15925/j.cnki.issn1005-3360.2024.10.002
ZHANG Yun-xuan, LI Ying-cai, JI Chen-xiao, et al. Study on Properties of Mica-Filled HDPE Blends[J]. Plastics Science and Technology. 2024, 52(10): 7-11 https://doi.org/10.15925/j.cnki.issn1005-3360.2024.10.002

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基金

山东省科技型中小企业创新能力提升工程项目(2022TSGC2452)

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