电子束辐射氧化熔融态超高分子量聚乙烯膜

赵浩宇; 韩磊; 王静; 鲁曼丽; 张文礼; 王谋华

doi:10.11889/j.1000-3436.2025-0053

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电子束辐射氧化熔融态超高分子量聚乙烯膜

辐射化学 | 更新时间：2026-02-06

- 电子束辐射氧化熔融态超高分子量聚乙烯膜
- Electron beam irradiation-induced oxidation of molten ultra-high molecular weight polyethylene films
- 辐射研究与辐射工艺学报 2026年44卷第1期页码：10202
- 作者机构：
  
  1.中国科学院上海应用物理研究所上海 201800
  2.中国科学院大学北京 100049
- 作者简介：
  
  赵浩宇，男，2001年12月出生，2023年6月本科毕业于中国石油大学（北京），现为中国科学院上海应用物理研究所在读硕士研究生，高分子化学与物理专业
  王谋华，研究员，E-mail: wangmouhua@sinap.ac.cn
- 基金信息：
  
  国家自然科学项目(12375357)
- DOI：10.11889/j.1000-3436.2025-0053
  中图分类号： TL13
- 收稿：2025-06-25，
  
  修回：2025-09-09，
  
  录用：2025-09-09，
  
  纸质出版：2026-02-20
- 稿件说明：
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赵浩宇, 韩磊, 王静, 等. 电子束辐射氧化熔融态超高分子量聚乙烯膜[J]. 辐射研究与辐射工艺学报, 2026, 44(1): 010202.

ZHAO Haoyu, HAN Lei, WANG Jing, et al. Electron beam irradiation-induced oxidation of molten ultra-high molecular weight polyethylene films[J]. Journal of Radiation Research and Radiation Processing, 2026, 44(1): 010202.
赵浩宇, 韩磊, 王静, 等. 电子束辐射氧化熔融态超高分子量聚乙烯膜[J]. 辐射研究与辐射工艺学报, 2026, 44(1): 010202. DOI： 10.11889/j.1000-3436.2025-0053. CSTR： 32195.14.j.JRRRP.1000-3436.2025-0053.

ZHAO Haoyu, HAN Lei, WANG Jing, et al. Electron beam irradiation-induced oxidation of molten ultra-high molecular weight polyethylene films[J]. Journal of Radiation Research and Radiation Processing, 2026, 44(1): 010202. DOI： 10.11889/j.1000-3436.2025-0053. CSTR： 32195.14.j.JRRRP.1000-3436.2025-0053.

摘要

本研究采用电子束辐照技术，在空气与氧气气氛中对熔融态（150 ℃）和常温（25 ℃）条件下的超高分子量聚乙烯（UHMWPE）膜进行辐射氧化处理，通过傅里叶变换红外光谱、差示扫描量热仪、凝胶含量及小冲孔测试分析其结构与力学性能变化。实验结果表明：常温辐照时UHMWPE以交联为主，氧化程度低；熔融态氧气中辐照则引发显著氧化裂解，当吸收剂量为500 kGy时，凝胶含量为0，力学性能显著下降，小冲孔测试呈现出脆性断裂的特征；熔融态空气中辐照则呈现交联与氧化协同作用。研究证实，电子束辐照熔融态UHMWPE膜在氧气气氛下可高效促进氧化裂解，为聚乙烯化学回收提供新思路。

Abstract

This study employed electron beam irradiation technology to perform radiation-induced oxidative treatment on ultra-high molecular weight polyethylene (UHMWPE) films under air and oxygen atmospheres

in molten (150 ℃) and room temperature (25 ℃) states. The structural and mechanical properties were analyzed through Fourier transform infrared spectroscopy (FTIR)

differential scanning calorimetry (DSC)

gel content measurement

and small punch tests. The experimental results indicate that irradiation at room temperature primarily induces cross-linking in UHMWPE

with a low degree of oxidation. In contrast

irradiation in the molten state under an oxygen atmosphere triggered significant oxidative degradation. At an absorbed dose of 500 kGy

the gel content was reduced to zero

accompanied by a notable decline in mechanical properties

and the small punch tests exhibited characteristics of brittle fracture. Irradiation in the molten state under an air atmosphere also demonstrated a synergistic effect between cross-linking and oxidation. The study confirms that electron beam irradiation of molten UHMWPE films in an oxygen atmosphere can efficiently promote oxidative degradation

offering a new strategy for the chemical recycling of polyethylene.

关键词

Keywords

references

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