摘要
采用10 MeV/15 kW型电子束加速器分别对聚乙烯(PP)、聚酯(PET)、聚乙烯(PE)3种材料的医用一次性防护服试样进行10~50 kGy吸收剂量的辐照和0、1、3、6、12个月的加速老化试验。对GB 19082—2009中与辐照效应相关的主要性能指标进行测试。试验结果表明,3种医用一次性防护服辐照后的抗渗水性、抗合成血液穿透性、过滤效率受辐照影响较小且均满足标准要求,断裂伸长率和断裂强力因材料的不同而存在较大差异。PP材料医用一次性防护服试样耐辐照性能较差,其断裂强力和断裂伸长率随吸收剂量的增大而减小。PET材料医用一次性防护服试样耐辐照性能优异,断裂强力和断裂伸长率在辐照和加速老化前后变化较小。PE材料医用一次性防护服试样的耐辐照性能介于PP和PET之间。研究结果可为医用防护服辐照工艺参数的设置和材料的选取提供参考。
The 10 MeV/15 kW electron beam accelerator was used to carry out the experiment of 10~50 kGy irradiation does and 0,1,3,6,12 months accelerated aging time on 3 kinds of disposable protective clothing samples composed of polyethylene(PP),polyester(PET)and polyethylene(PE)respectively.The main performance indexes related to irradiation effect in GB 19082—2009 were measured.The results showed that the impermeability,penetration resistance and filtration efficiency of the 3 kinds of disposable medical protective clothing satisfied the standard requirements after irradiation,which were less affected by irradiation.The breaking elongation and breaking strength varied greatly among different samples.The radiation resistance of PP samples was poor,and the breaking strength and breaking elongation decreased with the increasing of the absorbed dose.PET samples had excellent radiation resistance,and the breaking strength and elongation were almost the same before and after irradiation and accelerated aging tests.The radiation resistance of PE samples was between PP samples and PET samples.The results could provide references for the setting of irradiation process parameters and the selection of materials for disposable medical protective clothing.
作者
崔磊
郭丽莉
王贵超
邱龙
陈天宝
祝军
Cui Lei;Guo Lili;Wang Guichao;Qiu Long;Chen Tianbao;Zhu Jun(China Isotope&Radiation Corporation,Beijing 100089,China;China Isotope&Radiation Association,Beijing 100089,China;Suzhou CNNC Huadong Radiation Co.,Ltd.,Suzhou 215200,China)
出处
《产业用纺织品》
2021年第4期38-44,共7页
Technical Textiles
基金
国家国防科技工业局核技术推广应用项目(科工二司[2020]343号)。
关键词
辐照技术
吸收剂量
电子束
医用一次性防护服
radiation technology
absorbed dose
electron beam
disposable medical protective clothing
