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为探究氧化铋/聚氨酯/钨丝(Bi_2O3/TPU/W)包覆纱织物的制备工艺及其X射线防护性能，将聚氨酯(TPU)和氧化铋(Bi_2O3)配制成纺丝溶液，以钨丝(W)作为芯层，通过皮芯复合静电纺丝技术制备Bi_2O3/TPU/W包覆纱，并进一步织成平纹织物。研究了Bi_2O3的添加量对纳米纤维膜表面形貌、化学组分、力学性能、透气性能和X射线防护性能的影响。结果表明：当Bi_2O3添加量为75%时，Bi_2O3/TPU纤维膜中颗粒分布均匀、形貌良好。当Bi_2O3/TPU/W包覆纱直径为0.7 mm时，纱线结构稳定，强力好。所制备Bi_2O3/TPU/W包覆纱织物的厚度为1.4 mm时，透气率达1 220 mm/s，透湿率为7 040 g/(m2·24 h)，对入射能量为83 keV的X射线防护铅当量达0.27 mmPb。
Abstract：To investigate the preparation process and X-ray shielding performance of bismuth oxide/polyurethane/tungsten wire(Bi_2O3/TPU/W) sheathed yarn fabrics, using a spinning solution of polyurethane(TPU) and bismuth oxide(Bi_2O3) with tungsten wire(W) as the core layer, Bi_2O3/TPU/W sheathed yarn was fabricated via core-sheath composite electrospinning technology and subsequently woven into a plain-woven fabric. The effects of Bi2 O3 addition on the surface morphology, chemical composition, mechanical properties, air permeability, and X-ray shielding performance of the nanofiber membrane were investigated. The results indicated that: 1) when the Bi2 O3 addition was 75%,the Bi_2O3/TPU fiber membrane exhibited uniform particle distribution and well-defined morphology; 2) when the diameter of the Bi_2O3/TPU/W sheathed yarn was 0.7 mm, the yarn structure was stable with satisfactory tensile strength.The prepared Bi_2O3/TPU/W sheathed yarn fabric, with a thickness of 1.4 mm, achieved an air permeability of 1 220 mm/s,a moisture vapor transmission rate of 7 040 g/(m2·24 h), and an X-ray shielding lead equivalent of 0.27 mmPb at an incident energy of 83 keV.
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基本信息:
DOI：10.12194/j.ntu.20251024001
中图分类号:TS106
引用信息:
[1]周瑞,张飞燕,陈华杰,等.Bi_2O_3/TPU/W包覆纱织物的制备及其X射线防护性能研究[J].南通大学学报(自然科学版),2026,25(01):32-39.DOI:10.12194/j.ntu.20251024001.
基金信息:
江苏省高等学校基础科学重大项目（21KJA490001）; 四川省科技成果转移转化示范项目（2023ZHCG0045）
2026-03-20
2026-03-20