纺织高校基础科学学报2024，Vol.37Issue(5)：48-54,7.DOI:10.13338/j.issn.1006-8341.2024.05.007
柔性防刺复合材料用抗冻水凝胶的制备与性能
Preparation and properties of anti-freezing hydrogel for flexible puncture-resistance composites
摘要
Abstract
To address the issue of diminished protective performance in existing personal protective equipment under low-temperature environments,flexible puncture-resistant materials were devel-oped to meet the diverse needs of individual soldiers operating in high-altitude,cold regions and for outdoor sports activities.In this paper,the effects of process parameters on the tensile prop-erties of hydrogels were investigated using polyvinyl alcohol(PVA)/sodium alginate(SA)/glyc-erol(Gly)hydrogels soaked in different ratios of Al2(SO4)3 and Na3Cit aqueous solutions after different freezing and thawing cycles,and the micro-mechanisms of the property changes were in-vestigated by scanning electron microscopy morphology observation,infrared spectroscopy and dynamic rheological property testing.Finally,the anti-freezing performance of the hydrogel was verified,and the results showed that:for the hydrogel after a freezing and thawing cycle,its me-chanical properties were optimal after immersed in a salt solution with a binary salt mass ratio of 2∶2 for 12 h.The tensile strength,modulus of elasticity,and fracture toughness reached 3.61 MPa,0.96 MPa,and 6.67 MJ/m3,and the anti-freezing effect was achieved in environments as low as-15 ℃.The high-strength and high-toughness antifreeze hydrogel flexible matrix can be applied to all kinds of personal protective equipment in low-temperature environments.关键词
水凝胶/柔性基体/防刺复合材料/拉伸性能/抗冻性能Key words
hydrogel/flexible matrix/puncture resistance composites/tensile properties/anti-freezing properties分类
轻工纺织引用本文复制引用
李雪儿,张晓彤,杨忠凯,王珊,刘雨桐,王秋实..柔性防刺复合材料用抗冻水凝胶的制备与性能[J].纺织高校基础科学学报,2024,37(5):48-54,7.基金项目
陕西省自然科学基金(2024JC-YBQN-0423) （2024JC-YBQN-0423）
大学生创新创业训练计划项目(S202310700008) （S202310700008）
