摘要
为得到性能优异的防刺材料,制备了聚氨酯/芳纶平纹织物复合材料,讨论不同涂层工艺、聚氨酯类型和叠加结构对防刺性能的影响.结果表明:和湿法涂层、干法直涂工艺相比,使用转移涂层工艺的复合织物防刺性能较优;而高模量聚碳酸酯型聚氨酯复合芳纶平纹织物能明显提高其防刺性能,在动态穿刺试验中穿透层数仅为31层,采用双侧涂覆工艺能进一步增强防刺效果,穿刺层数减少至27层;在面密度相同的情况下,芳纶基布在外侧各5层、中间为20层复合织物的叠加结构更能起到防护作用,可使得位于下层的5层芳纶基布不被洞穿.
In order to prepare the material with good stab resistance, the polyurethane/ aramid composite fabric was pre-pared. The effects of coating processes, polyurethane types and superposition structure on the stab resistance of composite fabric were discussed. The results show that compared with the processes of wet coating and directly dry coating, the composite fabric using transfer coating process has better stab resistance. Coating with high modulus polycarbonate type polyurethane the stab resistance of composite fabric has been significantly improved, and the penetrated layer number in dynamic penetration test is only 31, and the stab resistance of composite fab-ric is further enhanced by bilaterally coating process, and the penetrated layer number reduces to 27. Under the same surface density, the superposition structure of 5 layers aramid fabrics up and down and 20 layers composite fabrics in the center has better protection effect, and the lower 5 layers aramid fabrics have not been scored.
出处
《天津工业大学学报》
北大核心
2017年第4期27-31,共5页
Journal of Tiangong University
基金
天津市自然科学基金资助项目(13JCYBJC17200)
关键词
聚氨酯
芳纶织物
防刺性能
涂覆工艺
叠加结构
polyurethane
aramid fabric
stab resistance
coating process
superposition structure
