CN110103556B - 一种柔性防弹防刺材料及其制备方法 - Google Patents
一种柔性防弹防刺材料及其制备方法 Download PDFInfo
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Abstract
本发明公开了一种柔性防弹防刺材料及其制备方法,本发明柔性防弹防刺材料,包括基本层和钝化层,基本层包括纤维织物,纤维织物的一侧渗入有热熔后部分渗入纤维织物的热塑性弹性材料,纤维织物中没有渗入热塑性弹性材料的部分分散有剪切增稠液体,钝化层是将陶瓷粒子和热固性树脂混合液涂抹在纤维织物含有热塑性弹性材料的一侧上并固化制得,基本层和钝化层外真空包覆有保护膜。本发明制备方法用于制备前述柔性防弹防刺材料。本发明极大改善防弹防刺材料的柔软度,提供轻量化、舒适化防弹防刺效果。
Description
技术领域
本发明涉及一种防弹防刺服。
背景技术
维护社会公共安全,提高社会突发事件现场应急处置能力,是构建和谐社会的前提和重要保障。目前,世界反恐形势日益严峻,国内外各种形式的社会暴力犯罪事件不断发生,士兵、警察及各类安保人群的生命安全面临着日益严重的威胁,防弹防刺装备被大量使用。然而,由于材料的防弹机理和防刺机理差别较大,防弹材料的防刺性能并不理想,而常规防刺材料几乎不具备防弹功能。在实际应用中,作战人员可能同时面临枪弹、匕首等多种威胁,因此对兼具防弹、防刺功能的防护材料提出了迫切需求。立足实战中人体防护装备面临的瓶颈问题,以高防护力、舒适化和轻量化为主要特点的防弹防刺材料成为研究热点。
CN 107653573 A公开了一种基于芳纶无纬布结构的防弹防刺材料,由芳纶纤维和水性聚氨酯、水性酚醛、水性环氧、水溶性氨基树脂中的一种或多种胶粘剂混合,经展丝、上胶、热风干燥后再经过特殊的热压工艺和冷压工艺压制制得,可任意角度弯曲,穿着舒适。
CN 106084595 A公开了一种柔软的热塑性防弹防刺材料及其制备方法,由纤维织物增强的热塑性复合材料片材叠加而成,该片材两侧面的热塑性树脂含量不同,其中一侧面的热塑性树脂含量为15%~40%,另一侧面的热塑性树脂含量一侧为0~30%,这种结构树脂含量不对称,且树脂含量低,因而能兼顾防刺和防弹功能。
ZL201310159388.5提供了一种新型柔性防弹防刺三维机织物,包括至少两层经纱层和至少两层纬纱层,经纱层中的经纱相互平行伸直排列,纬纱层中的纬纱相互平行伸直排列,经纱和纬纱相互垂直并由捆绑纱束缚在一起,形成整体的三维织物结构。作为现有的硬质防弹材料的替代品,达到防弹和防刺效果。
ZL200910250240.6提供了一种防刺防弹材料,由防刺层和防弹层组成,防刺层为两个由高强高模纤维单取向预浸带正交复合的单元组成,相邻单元之间旋转45°相互复合;防弹层为两个由纤维单取向预浸带正交复合的单元组成,相邻单元之间旋转90°相互复合。
尽管以上防弹防刺材料满足了基本的防护需求,但依然面临防护性能和灵活性难以兼顾的矛盾,造成个体防护装备重量大、穿着舒适性欠佳。如何在有效防护、机动灵活及轻量化之间找到平衡点,制备柔软、轻便、舒适的柔性防弹防刺材料,实现装备综合防护效能的提升,是提升士兵、警察及各种特殊安保人群防弹、防刺等综合保障能力的当务之急。
发明内容
本发明要解决的技术问题是:提供一种柔性防弹防刺材料,以及提供一种柔性防弹防刺材料的制备方法。
为了解决上述技术问题,本发明柔性防弹防刺材料,包括基本层和钝化层,基本层包括纤维织物,纤维织物的一侧渗入有热熔后部分渗入纤维织物的热塑性弹性材料,纤维织物中没有渗入热塑性弹性材料的部分分散有剪切增稠液体,钝化层是将陶瓷粒子和热固性树脂混合液涂抹在纤维织物含有热塑性弹性材料的一侧上并固化制得,基本层和钝化层外真空包覆有保护膜。
优选的,所述的纤维织物层采用芳纶纤维织物、PBO纤维织物或超高分子量聚乙烯纤维织物。
优选的,所述的热塑性弹性材料采用EVA熔膜或PU熔膜。
优选的,所述的热固性树脂为酚醛树脂、乙烯基酯树脂或环氧树脂,陶瓷粒子为碳化硅粒子、碳化硼粒子或氧化铝粒子,陶瓷粒子的粒径为10-200μm,陶瓷粒子和热固性树脂的质量比是1:1~1:3。
优选的,所述的保护膜采用PE膜或PVC膜。
本发明柔性防弹防刺材料的制备方法,包括如下步骤:(1)将克重10-20 g/m2的膜状热塑性弹性材料铺放在克重150-300 g/m2的纤维织物上表面,加热至热塑性弹性材料熔化,再加压使热塑性弹性材料渗入纤维织物的上侧中,得到材料一;(2)配置陶瓷粒子和热固性树脂混合液,将混合液涂刷在材料一的纤维织物含有热塑性弹性材料的一侧,控制涂刷量为100-180g/m2,压平且固化后脱模,制出钝化层,得到材料二;(3)将固含量66-72%的剪切增稠液体用有机溶剂按照体积比1:1~1:3的比例稀释均匀制成剪切增稠稀释液体,然后将材料二置于剪切增稠稀释液体中超声浸渍5-15min,取出后去除多余剪切增稠稀释液体,陈化后再鼓风干燥,使有机溶剂挥发,得到材料三;(4)以保护膜对材料三真空封装,得到柔性防弹防刺材料片材。
优选的,所述的步骤(4)中陈化时间为20-30小时,鼓风干燥温度为60-80℃。
优选的,所述的步骤(4)中超声浸渍条件是:采用45-100KHz超声,超声功率600-800W,超声时间5~15min。
本发明的有益效果是:极大改善防弹防刺材料的柔软度,提供轻量化、舒适化防弹防刺效果。利用陶瓷粒子的高硬度和高耐磨性,钝化刀尖、弹丸;利用剪切增稠液体防护材料在不同冲击条件下粘度不同的特性,平衡状态或低速剪切时,液体可流动,各防护层保持柔软,在高速冲击时,液体粘度迅速增加,赋予各防护层极强的防护功能。本发明提供的防弹防刺材料能提供优异的防弹防刺功能,满足GA68-2008警用防刺服规定的防刺性能和GA141-2010警用防弹衣规定的2级和3级防弹性能,并且不对人体跪、跳、蹲、跑、俯仰、转体等战术动作造成限制,穿着舒适性得到极大改善。
附图说明
图1是本发明柔性防弹防刺材料结构示意图;
图中:1、钝化层,2、热塑性弹性材料,3、纤维织物,4、剪切增稠液体,5、保护膜。
具体实施方式
下面结合附图对本发明的具体实施方式做详细的说明。但不限于以下实施例,还可以有其他变形。本领域的技术人员从本发明公开内容直接导出或间接引申的所有变形,均应认为是本发明的保护范围。
实施例1
如图1所示的一种柔性防弹防刺材料,采用以下步骤制备:(1)将克重20g/m2的EVA熔膜铺放在克重200g/m2的芳纶纤维织物上表面,加热至160℃,热压成型,使EVA材料渗入纤维织物的上侧中,得到材料一。(2)机械搅拌法配置碳化硅粒子和酚醛树脂混合液,碳化硅粒子和酚醛树脂质量比为1:1,碳化硅粒子的平均粒径为50μm,将混合液涂刷在材料一的纤维织物3含有热塑性弹性材料2的一侧,控制涂刷量为100g/m2,150℃高温压平,待树脂固化后脱模,制出钝化层1,得到材料二;(3)将固含量66%的剪切增稠液体用无水乙醇按照体积比1:2的比例稀释均匀制成剪切增稠稀释液体,然后将材料二置于剪切增稠稀释液体中超声浸渍5min,超声浸渍条件是:采用45KHz超声,超声功率700W,超声时间10min。取出后去除多余剪切增稠稀释液体,陈化26小时,再62℃鼓风干燥,使乙醇挥发,纤维织物3中没有渗入热塑性弹性材料2的部分分散有剪切增稠液体4,得到材料三;(4)以PE膜对材料三真空封装,形成保护膜5,得到柔性防弹防刺材料片材。经测试,该片材面密度为360g/m2。
性能测试:取25层柔性防弹防刺片材层叠,其中含有耐磨陶瓷粒子层的一侧为冲击面,含有剪切增稠液体的一侧为贴身面,该防弹防刺材料,面密度9kg/m2,防刺性能满足GA68-2008标准,能够阻止标准刀具24J动能的穿刺,防护性能满足GA141-2010标准2级,能够有效防护54式手枪发射的51式7.62mm手枪弹。
实施例2
如图1所示的一种柔性防弹防刺材料,采用以下步骤制备:(1)将克重10 g/m2的TPU熔膜铺放在克重150g/m2的PBO纤维织物上表面,加热至180℃,热压成型,使TPU材料渗入纤维织物3的上侧中,得到材料一。(2)机械搅拌法配置碳化硼粒子和乙烯基酯树脂混合液,碳化硼粒子和乙烯基酯树脂的质量比为1:2,碳化硼粒子的平均粒径为100μm,将混合液涂刷在材料一的纤维织物含有热塑性弹性材料的一侧,控制涂刷量为120g/m2,室温下压制,待树脂固化后脱模,制出钝化层1,得到材料二;(3)将固含量70%的剪切增稠液体用甲醇按照体积比1:3的比例稀释均匀制成剪切增稠稀释液体,然后将材料二置于剪切增稠稀释液体中超声浸渍15min,超声浸渍条件是:采用80KHz超声,超声功率600W,超声时间15min。取出后去除多余剪切增稠稀释液体,陈化20小时,再60℃鼓风干燥,使甲醇挥发,纤维织物3中没有渗入热塑性弹性材料2的部分分散有剪切增稠液体4,得到材料三;(4)以PE膜对材料三真空封装,形成保护膜5,得到柔性防弹防刺材料片材。经测试,该片材面密度为300g/m2。
性能测试:取20层柔性防弹防刺片材层叠,其中含有耐磨陶瓷粒子层的一侧为冲击面,含有剪切增稠液体的一侧为贴身面,该防弹防刺材料,面密度6kg/m2,防刺性能满足GA68-2008标准,能够阻止标准刀具24J动能的穿刺,防护性能满足GA141-2010标准2级,能够有效防护54式手枪发射的51式7.62mm手枪弹。
实施例3
如图1所示的一种柔性防弹防刺材料,采用以下步骤制备:(1)将克重15g/m2的EVA熔膜铺放在克重300g/m2的芳纶纤维织物上表面,加热至160℃,热压成型,使EVA材料渗入纤维织物3的上侧中,得到材料一。(2)机械搅拌法配置碳化硅粒子和环氧树脂混合液,碳化硅粒子和环氧树脂的质量比为1:3,碳化硅粒子的平均粒径为10μm,将混合液涂刷在材料一的纤维织物含有热塑性弹性材料的一侧,控制涂刷量为150g/m2,150℃高温压制,待树脂固化后脱模,制出钝化层1,得到材料二;(3)将固含量68%的剪切增稠液体用丙酮按照体积比1:1的比例稀释均匀制成剪切增稠稀释液体,然后将材料二置于剪切增稠稀释液体中超声浸渍10min,超声浸渍条件是:采用100KHz超声,超声功率800W,超声时间5min。取出后去除多余剪切增稠稀释液体,陈化24小时,再70℃鼓风干燥,使丙酮挥发,纤维织物3中没有渗入热塑性弹性材料2的部分分散有剪切增稠液体4,得到材料三;(4)以PVC膜对材料三真空封装,形成保护膜5,得到柔性防弹防刺材料片材。经测试,该片材面密度为500g/m2。
性能测试:取24层柔性防弹防刺片材层叠,其中含有耐磨陶瓷粒子层的一侧为冲击面,含有剪切增稠液体的一侧为贴身面,该防弹防刺材料,面密度12kg/m2,防刺性能满足GA68-2008标准,能够阻止标准刀具24J动能的穿刺,防护性能满足GA141-2010标准3级,能够有效防护79式轻型冲锋枪发射的51式7.62mm手枪弹。
实施例4
如图1所示的一种柔性防弹防刺材料,采用以下步骤制备:(1)将克重15g/m2的TPU熔膜铺放在克重180g/m2的超高分子量聚乙烯纤维织物上表面,加热至160℃,热压成型,使TPU材料渗入纤维织物3的上侧中,得到材料一。(2)机械搅拌法配置氧化铝粒子和酚醛树脂混合液,氧化铝粒子和酚醛树脂的质量比为1:1,氧化铝粒子的平均粒径为200μm,将混合液涂刷在材料一的纤维织物含有热塑性弹性材料的一侧,控制涂刷量为180g/m2,150℃高温压制,待树脂固化后脱模,制出钝化层1,得到材料二;(3)将固含量72%的剪切增稠液体用无水乙醇按照体积比1:2的比例稀释均匀制成剪切增稠稀释液体,然后将材料二置于剪切增稠稀释液体中超声浸渍8min,超声浸渍条件是:采用45/80/100KHz三频率组合超声,45KHZ30秒,80KHZ 30秒,100KHZ 30秒,超声功率700W,依次循环超声8min。取出后去除多余剪切增稠稀释液体,陈化30小时,再80℃鼓风干燥,使乙醇挥发,纤维织物3中没有渗入热塑性弹性材料2的部分分散有剪切增稠液体4,得到材料三;(4)以PVC膜对材料三真空封装,形成保护膜5,得到柔性防弹防刺材料片材。经测试,该片材面密度为400g/m2。
性能测试:取28层柔性防弹防刺片材层叠,其中含有耐磨陶瓷粒子层的一侧为冲击面,含有剪切增稠液体的一侧为贴身面,该防弹防刺材料,面密度11.2kg/m2,防刺性能满足GA68-2008标准,能够阻止标准刀具24J动能的穿刺,防护性能满足GA141-2010标准3级,能够有效防护79式轻型冲锋枪发射的51式7.62mm手枪弹。
本发明中剪切增稠液体是亚微米二氧化硅粒子和聚乙二醇的混合物,固含量是二氧化硅粒子的含量。现有的剪切增稠液体均适用,并不仅限于前述成份。
陶瓷粒子和热固性树脂混合液中采用的几种热固性树脂常温为液态。
本发明中EVA熔膜为乙烯-醋酸乙烯共聚物熔膜;PBO纤维织物为聚对苯撑苯并二噁唑纤维织物;TPU熔膜为热塑性聚氨酯弹性体橡胶熔膜;PVC膜为聚氯乙烯膜;PE膜为聚乙烯膜。
Claims (8)
1.一种柔性防弹防刺材料,其特征在于:包括基本层和钝化层,基本层包括纤维织物,纤维织物的一侧渗入有热熔后部分渗入纤维织物的热塑性弹性材料,纤维织物中没有渗入热塑性弹性材料的部分分散有剪切增稠液体,钝化层是将陶瓷粒子和热固性树脂混合液涂抹在纤维织物含有热塑性弹性材料的一侧上并固化制得,基本层和钝化层外真空包覆有保护膜,柔性防弹防刺材料的制备方法包括如下步骤:(1)将克重10-20g/m2的膜状热塑性弹性材料铺放在克重150-300 g/m2的纤维织物上表面,加热至热塑性弹性材料熔化,再加压使热塑性弹性材料渗入纤维织物的上侧中,得到材料一;(2)配置陶瓷粒子和热固性树脂混合液,将混合液涂刷在材料一的纤维织物含有热塑性弹性材料的一侧,控制涂刷量为100-180g/m2,压平且固化后脱模,制出钝化层,得到材料二;(3)将固含量66-72%的剪切增稠液体用有机溶剂按照体积比1:1~1:3的比例稀释均匀制成剪切增稠稀释液体,然后将材料二置于剪切增稠稀释液体中超声浸渍5-15min,取出后去除多余剪切增稠稀释液体,陈化后再鼓风干燥,使有机溶剂挥发,得到材料三;(4)以保护膜对材料三真空封装,得到柔性防弹防刺材料片材。
2.根据权利要求1所述的柔性防弹防刺材料,其特征在于:所述的纤维织物层采用芳纶纤维织物、PBO纤维织物或超高分子量聚乙烯纤维织物。
3.根据权利要求1所述的柔性防弹防刺材料,其特征在于:所述的热塑性弹性材料采用EVA熔膜或PU熔膜。
4.根据权利要求1所述的柔性防弹防刺材料,其特征在于:所述的热固性树脂为酚醛树脂、乙烯基酯树脂或环氧树脂,陶瓷粒子为碳化硅粒子、碳化硼粒子或氧化铝粒子,陶瓷粒子的粒径为10-200μm,陶瓷粒子和热固性树脂的质量比是1:1~1:3。
5.根据权利要求1-4中任何一项所述的柔性防弹防刺材料,其特征在于:所述的保护膜采用PE膜或PVC膜。
6.一种如权利要求1-4中任何一项所述的柔性防弹防刺材料的制备方法,其特征在于:包括如下步骤:(1)将克重10-20g/m2的膜状热塑性弹性材料铺放在克重150-300 g/m2的纤维织物上表面,加热至热塑性弹性材料熔化,再加压使热塑性弹性材料渗入纤维织物的上侧中,得到材料一;(2)配置陶瓷粒子和热固性树脂混合液,将混合液涂刷在材料一的纤维织物含有热塑性弹性材料的一侧,控制涂刷量为100-180g/m2,压平且固化后脱模,制出钝化层,得到材料二;(3)将固含量66-72%的剪切增稠液体用有机溶剂按照体积比1:1~1:3的比例稀释均匀制成剪切增稠稀释液体,然后将材料二置于剪切增稠稀释液体中超声浸渍5-15min,取出后去除多余剪切增稠稀释液体,陈化后再鼓风干燥,使有机溶剂挥发,得到材料三;(4)以保护膜对材料三真空封装,得到柔性防弹防刺材料片材。
7.根据权利要求6所述的柔性防弹防刺材料的制备方法,其特征在于:所述的步骤(3)中陈化时间为20-30小时,鼓风干燥温度为60-80℃。
8.根据权利要求6所述的柔性防弹防刺材料的制备方法,其特征在于:所述的步骤(3)中超声浸渍条件是:采用45-100KHz超声,超声功率600-800W,超声时间5~15min。
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