涂层防刺织物的制备及其防刺机制
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摘要
为减轻防刺服质量,提高防刺服的柔软性与灵活性,使用硬质粒子涂层的方式制作防刺织物。选用碳化硅(SiC)硬质粒子制备SiC悬浮液。当SiC悬浮液中粉末粒子、水、乙二醇的质量比为(1.5~2.5)∶1∶1时,SiC粒子分散最稳定,悬浮液的2 h相对沉降高度达0.96。在稳定悬浮液中加入黏合剂,在超高分子量聚乙烯平纹织物上涂层,对制备得到的涂层织物进行准静态刺割实验。探讨涂层液配比、基布密度、织物涂层数对织物防刺性能的影响。结果发现,涂层织物防刺性能随分散液与黏合剂质量比的增大而逐渐降低,确定了基布最佳经纬密度均为100根/(10 cm),涂层层数为3。分析了涂层对织物柔软性的影响,并结合织物表面形态、刺口形貌和刺破力学曲线发现,涂层织物刺破强力比原样织物大,并且有一定缓冲效应,起到更好的防刺作用。
In order to reduce the weight of stab-resistant fabric and improve its softness and flexibility,the hard particle coating was used to prepare the stab-resistant fabrics. SiC suspensions were prepared by using SiC hard particles. It is found that the SiC suspension is the most stable when the weight ratio of SiC powder particles,water and ethylene glycol is( 1. 5-2. 5) ∶ 1 ∶ 1,and its relative sedimentation height of 2 h suspension reaches 0. 96. The SiC suspensions were used to coat the ultrahigh molecular weight polyethylene( UHMWPE) plain cloth. Quasi-static stabbing experiments were carried out on the coated fabrics. The influence of coating liquid ratio,original fabric density and the number of coating layers on fabric stab-resistance were carried out. It is found that the stab-resistance of the coated fabric decreases gradually with the increase of the mass ratio of the disperant to the binder. The optimal weft and warp densities of the base cloth are both 100/( 10 cm),and the coating number is 3. The influence of coating on fabric softness was analyzed. At the same time,according to the fabric surface morphology,puncture appearance and puncture mechanical curve,it is found that the puncture strength of the coated fabric is higher than that of the original fabric,and it has a buffer effect,resulting in better stab-resistant property.
In order to reduce the weight of stab-resistant fabric and improve its softness and flexibility,the hard particle coating was used to prepare the stab-resistant fabrics. SiC suspensions were prepared by using SiC hard particles. It is found that the SiC suspension is the most stable when the weight ratio of SiC powder particles,water and ethylene glycol is( 1. 5-2. 5) ∶ 1 ∶ 1,and its relative sedimentation height of 2 h suspension reaches 0. 96. The SiC suspensions were used to coat the ultrahigh molecular weight polyethylene( UHMWPE) plain cloth. Quasi-static stabbing experiments were carried out on the coated fabrics. The influence of coating liquid ratio,original fabric density and the number of coating layers on fabric stab-resistance were carried out. It is found that the stab-resistance of the coated fabric decreases gradually with the increase of the mass ratio of the disperant to the binder. The optimal weft and warp densities of the base cloth are both 100/( 10 cm),and the coating number is 3. The influence of coating on fabric softness was analyzed. At the same time,according to the fabric surface morphology,puncture appearance and puncture mechanical curve,it is found that the puncture strength of the coated fabric is higher than that of the original fabric,and it has a buffer effect,resulting in better stab-resistant property.
引文
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[18]NAIK N K,SHRIRAO P.Composite structure under ballistic impact[J].Composite Structures,2004,66(1-4):579-590.
[19]TAN V B C,TAY T E,TEO W K.Strengthening fabric armour with silica colloidal suspensions[J].International Journal of Solids and Structures,2005,42:1561-1576.
[20]TERMONIA Yves.Puncture resistance of fibrous structures[J].International Journal of Impact Engineering,2006,32:1512-1520.
[2]MAYO Jr J B,WETZEL E D,HOSUR M V,et al.Stab and puncture characterization of thermoplastic impregnated aramid fabrics[J].International Journal of Impact Engineering,2009,36(9):1095-1105.
[3]KIM H,NAM I.Stab-resisting behavior of polymeric resin reinforced p-aramid fabrics[J].Journal of Applied Polymer Science,2012,123(5):2733-2742.
[4]赵玉梅.柔性复合防刺服的研究[D].上海:东华大学,2005:1-4.ZHAO Yumei.Study of complex stab-resistant body armor[D].Shanghai:Donghua University,2005:1-4.
[5]孙志杰,张佐光,沈建明,等.UD 75防弹板工艺参数与弹道性能的初步研究[J].复合材料学报,2001,18(5):43-49.SUN Zhijie,ZHANG Zuoguang,SHEN Jianming,et al.Preliminary study on process parameters and ballistic performance of UD 75 bullet proof plate[J].Journal of Composites,2001,18(5):43-49.
[6]黄玉松,陈跃如,邵军,等.超高分子量聚乙烯纤维复合材料的研究进展[J].工程塑料应用,2005,33(8):39-73.HUANG Yusong,CHEN Yueru,SHAO Jun,et al.Research progress of ultra high molecular weight polyethylene fiber composites[J].Application of Engineering Plastics,2005,33(8):39-73.
[7]顾肇文.柔性复合防刺服机理研究[J].纺织学报,2003(8):80-84.GU Zhaowen.Sudy on the mechanism of flexible composite stab-resistant clothing[J].Journal of Textile Science,2003(8):80-84.
[8]唐剑兰,邱日祥,杨勇胜,等.防弹防刺服研究进展[J].警用装备,2010(7):62-64.TANG Jianlan,QIU Rixiang,YANG Yongsheng,et al.Research progress of bullet-proof and stab-resistant clothing[J].Police Equipment,2010(7):62-64.
[9]LEE Young S,WETZEL E D,WAGNER N J.The ballistic impact characteristics of Kevlar woven fabrics impregnated with a colloidal shear thickening fluid[J].Journal of Materials Science,2003,38(13):2825-2833.
[10]GONG Xinglong,XU Yulei,ZHU Wei,et al.Study of the knife stab and puncture-resistant performance for shear thickening fluid enhanced fabric[J].Journal of Composite Materials,2014,48(3):341-357.
[11]FENG Xinya,SHU Kuili,WANG Yan,et al.Effects of different silica particles on quasi-static stab-resistant properties of fabrics impregnated with shear thickening fluids[J].Materials and Design,2014(34):453-431.
[12]晏义伍,曹海琳,赵金华.纳米混杂Kevlar/Surlyn复合材料的制备与防刺性能研究[J].防护装备技术研究,2012(3):5-9.YAN Yiwu,CAO Hailin,ZHAO Jinhua.Preparation of nano hybrid Kevlar/Surlyn composites and study on the stab-resistance[J].The Research of Protective Equipment Technology,2012(3):5-9.
[13]黎国光,兰宦国.一种非金属防刺材料的制备方法:105313951A[P].2013-02-10.LI Guoguang,LAN Huanguo.A preparation method of nonmetal anti-resistant materials:105313951A[P].2013-02-10.
[14]易中周,黄勇,谢志鹏,等.碳化硅浓悬浮体的分散特性和流变性研究[J].酸碱盐学报,2002,30(4):517-520.YI Zhongzhou,HUANG Yong,XIE Zhipeng,et al.Study on the dispersion and rheological properties of silicon carbide concentrated suspensions[J].Journal of the Chinese Ceramic Society,2002,30(4):517-520.
[15]顾冰芳,龚烈航,徐国跃.Kevlar纤维层叠织物防弹机理和性能研究[J].南京理工大学学报,2007(18):338-341.GU Bingfang,GONG Liehang,XU Guoyue.Study on bullet proof mechanism and performance of Kevlar fiber laminated fabric[J].Journal of Nanjing University of Science and Technology,2007(18):338-341.
[16]FLAMBARD X,POLO J.Stab resistance of multi-layers knitted structures:comparison between para-aramid and PBO fibers[J].J Adv Mater,2004,36:30-35.
[17]郭静荷,姜亚明.防刺个体装甲材料的发展与现状[J].产业用纺织品,2004(6):5-8.GUO Jinghe,JIANG Yaming.Development and present situation of stab-resistant individual armor material[J].Technical Textiles,2004(6):5-8.
[18]NAIK N K,SHRIRAO P.Composite structure under ballistic impact[J].Composite Structures,2004,66(1-4):579-590.
[19]TAN V B C,TAY T E,TEO W K.Strengthening fabric armour with silica colloidal suspensions[J].International Journal of Solids and Structures,2005,42:1561-1576.
[20]TERMONIA Yves.Puncture resistance of fibrous structures[J].International Journal of Impact Engineering,2006,32:1512-1520.