Design and New Strategy of Tungsten Particle Injection into Polyethylene Composites

DIWU Xiao-fei; CHEN Wen-ge; JIAO Dong-mao; ZHOU Lan-yan; ZHOU Wei; HE Xu-yang

doi:10.14028/j.cnki.1003-3726.2026.25.372

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Design and New Strategy of Tungsten Particle Injection into Polyethylene Composites

更新时间：2026-03-21

- Design and New Strategy of Tungsten Particle Injection into Polyethylene Composites
- Polymer Bulletin Vol. 39, Issue 4, Pages: 643-652(2026)
- 作者机构：
  
  西安理工大学材料科学与工程学院　西安 710048
  陕西三原鑫满意塑胶科技有限公司　咸阳 713800
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2026.25.372
  CLC：
- Received：23 December 2025，
  
  Accepted：09 February 2026，
  
  Online First：11 March 2026，
  
  Published：20 April 2026
- 稿件说明：
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第五晓飞, 陈文革, 焦栋茂, 周兰燕, 周伟, 何旭阳. 钨粒子注入聚乙烯复合材料的设计及新策略. 高分子通报,2026, 39(4), 643–652.

Diwu, X. F.; Chen, W. G.; Jiao, D. M.; Zhou, L. Y.; Zhou, W.; He, X. Y. Design and new strategy of tungsten particle injection into polyethylene composites. Polym. Bull. (in Chinese), 2026, 39(4), 643–652.
第五晓飞, 陈文革, 焦栋茂, 周兰燕, 周伟, 何旭阳. 钨粒子注入聚乙烯复合材料的设计及新策略. 高分子通报,2026, 39(4), 643–652. DOI： 10.14028/j.cnki.1003-3726.2026.25.372.

Diwu, X. F.; Chen, W. G.; Jiao, D. M.; Zhou, L. Y.; Zhou, W.; He, X. Y. Design and new strategy of tungsten particle injection into polyethylene composites. Polym. Bull. (in Chinese), 2026, 39(4), 643–652. DOI： 10.14028/j.cnki.1003-3726.2026.25.372.

摘要

针对传统聚乙烯复合材料在长距离氢气运输过程中致密性差，氢气易渗透、改性流程复杂的问题，采用挤压热熔法制备出纯聚乙烯(PE)试样，将钨颗粒以极大的冲击力注入PE试样制备出高致密度的PE/W复合材料，研究了钨粉注入改性对PE复合材料微观形貌和组织性能的影响。结果表明：所制备的PE/W复合材料，结晶温度为129.39 ℃，结晶焓为139.8 J/g，硬度为65 HD，硬度相比于纯PE提升了18.2%，冲击韧性为0.385 kJ/m

，断裂模式由剪切型韧性断裂转变成撕裂状的韧脆混合断裂，弹性模量提升了52.7%，致密度为94.50%相较于纯PE提升了1.43%，体积电阻为5.61×10

Ω，氢气渗透率为1.7×10

−14

mol·m/(m

·s·Pa)。

Abstract

Conventional polyethylene (PE) composites often suffer from insufficient compactness

high hydrogen permeability

and complex modification procedures in long‑distance hydrogen transportation. To address these issues

pure PE samples were first prepared by extrusion‑based hot melting. Tungsten particles were then injected into the PE matrix with high‑velocity impact to fabricate a highly compact PE/W composite. The effects of tungsten powder injection on the microstructure

morphology

and properties of the PE composite were systematically investigated. The results show that the as‑prepared PE/W composite exhibits a crystallization temperature of 129.39 ℃ and a crystallization enthalpy of 139.8 J/g. Its hardness reaches 65 HD

representing an 18.2% increase compared with pure PE. The impact toughness is 0.385 kJ/m

and the fracture mode changes from shear‑dominated ductile fracture to a mixed ductile‑brittle tearing pattern. The elastic modulus is enhanced by 52.7%

and the compactness reaches 94.50%

which is 1.43% higher than that of pure PE. Moreover

the volume resistivity is measured as 5.61×10

and the hydrogen permeability is as low as 1.7×10

−14

 mol·m/(m

·s·P

a). These findings demonstrate that the PE/W composite possesses significantly improved compactness and barrier properties against hydrogen permeation

offering a promising solution for hydrogen transport applications.

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references

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