CN101223030A - 层压毡制品 - Google Patents
层压毡制品 Download PDFInfo
- Publication number
- CN101223030A CN101223030A CNA2006800258411A CN200680025841A CN101223030A CN 101223030 A CN101223030 A CN 101223030A CN A2006800258411 A CNA2006800258411 A CN A2006800258411A CN 200680025841 A CN200680025841 A CN 200680025841A CN 101223030 A CN101223030 A CN 101223030A
- Authority
- CN
- China
- Prior art keywords
- laminated material
- goods
- face
- high strength
- felt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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Images
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Landscapes
- Engineering & Computer Science (AREA)
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Abstract
本发明涉及层压毡片及其组合体,所述层压毡片及其组合体由于本身冲击吸收、防弹性、防穿透性而有用并可用于防碎层、结构复合材料及其他应用。
Description
发明背景
1.发明领域
本发明涉及层压毡片及其组合体,所述层压毡片及其组合体由于本身冲击吸收、防弹性、防穿透性而有用并可用于防碎层、结构复合材料及其他应用。
2.相关技术描述
用于个人防护的护身甲结构是久远但不陈旧的技术。金属装甲,在1500B.C对埃及人而言已是众所周知,一直使用直到大概17世纪末。最近,由于新型强力纤维如芳族聚酰胺、高分子量聚乙烯和聚苯并唑(polybenzazoles)的发现,护身甲又变得实用。
已知各种纤维增强结构用于抗冲击、防弹和防穿透制品如头盔、防护板和背心。这些制品显示不同程度的抗刺入器具如刀和钉或射弹如子弹、炮弹、榴散弹、玻璃碎片等的冲击穿透性。
包含由高分子量聚乙烯、芳族聚酰胺和聚苯并唑等材料制备的高强度纤维的防弹和/或防穿透制品是已知。参见如美国专利6,534,426、6,475,936和题为“Lightweight Composite Hard Armor Non ApparelSystems with T-963 3300 dtex DuPont Kevlar 29 Fibre(采用T-963 3300dtex DuPont Kevlar 29纤维的轻质复合材料重型装甲非服装系统)”的E.I.duPont De Nemours International S.A.的1984公开。所述纤维可为机织或非织造的。非织造纤维可为针织的、单轴排列或交叉铺网或起毡的。根据其结构和所用材料的特征,这种制品为柔韧的或刚硬的。
USP 4,181,768描述了通过挤压层压6,6尼龙膜和聚对苯二甲酰对苯二胺织物交替层制备的刚性装甲。所述织物可为非织造的,如针刺毡。USP 5,343,796描述了包括第一柔软纤维层和第二柔软耐割纤维层的装甲系统。第二层包含未涂布针刺毡。美国专利申请公开2002/0106956描述了织物制品,所述织物制品包括至少两种纤维种类:一种韧度为至少10g/d,而另一种韧度小于10g/d。所述织物具有抵抗刺、蛇咬、锐利枝等刺破的层并可在所述防穿刺层后具有微孔膜层。所述防穿刺层可为针刺毡。
美国专利申请公开2003/0022583描述了防弹织物,所述织物包括混合并结合在一起以形成单层复合材料的至少两类纤维材料。所述纤维材料通过针刺和挤压而结合。H.L.Thomas在the 14th InternationalConference on Composite Materials,July 14-18,2003,San Diego,CA的展示材料中讨论了“Needle-punched Non-woven Fabric forFragmentation Protection(用于破裂防护的针刺非织造织物)”。
尽管已确认几种机理,纤维增强复合材料的穿透性能完整分析仍超过现有能力。小尖头射弹可通过横向取代纤维而未使之断裂来穿透装甲。这种情况下,抗穿透性取决于纤维可被推到旁边的容易程度,从而取决于纤维网络的特征。重要因素为组织的牢度或交叉铺网单向复合材料中的交叉周期、纱和纤维旦数、纤维与纤维的摩擦、基体特征、层间粘合强度及其他。尖碎片可通过剪切纤维而穿透。
早期结构有几个缺陷。交叉铺网单向纤维复合材料通常比由同类纤维制备的机织物防弹性能更好且重量更轻,然而,它们通常制备更昂贵。上述各结构带来了朝向其目标的进步。然而,没有一种描述了本发明层压材料和组合体的具体结构,且没有一种满足本发明满足的所有要求。
发明概述
本发明包括层压毡片及其组合体,所述层压毡片及其组合体由于本身冲击吸收、防弹性、防穿透性而有用并可用于防碎层、结构复合材料及其他应用。惊人地是,发现本发明结构当受到射弹冲击时背面变形出人意料地减小且提供改善的抗穿刺器具穿透的性能。
一个实施方案中,本发明为独立层压材料,所述层压材料包括:包括两侧面并基本由一种或多种按照ASTM D2256-02测定的韧度等于或大于约17克/旦(g/d)的高强度纤维组成的压缩毡片;粘合到所述毡片一个侧面或两个侧面的塑料膜;和任选位于所述侧面和塑料膜之间的粘合材料。
另一实施方案是包含两个或多个本发明层压材料的制品,所述层压材料以面对面关系叠置在一起,其中所述层压材料仅在边缘部分连接。
另一实施方案是包含两个或多个本发明层压材料的制品,所述层压材料在毡侧面和塑料膜之间具有粘合材料,其中所述层压材料以面对面关系粘合在一起。
另一实施方案是包含一个或多个上述本发明层压材料与一个或多个选自以下的纤维层的制品:高强度纤维的机织片;单轴排列和交叉铺网高强度纤维在基体中的片,单轴排列和交叉铺网高强度纤维层压在塑料膜中的片,所述高强度纤维的韧度为至少约17g/d;其中所述纤维层和所述层压材料以面对面关系叠置在一起。
另一实施方案是包含一个或多个上述本发明层压材料与选自以下的刚性板的制品:机织高强度纤维在基体中的片(粘合在一起);单轴排列和交叉铺网高强度纤维在基体中的片(粘合在一起);单轴排列和交叉铺网高强度纤维层压在塑料膜中并粘合在一起的片;其中所述刚性板和本发明层压材料以面对面关系叠置在一起。
另一实施方案是包含一个或多个上述本发明层压材料与选自以下的刚性板的制品:陶瓷、玻璃、金属填充复合材料、陶瓷填充复合材料、玻璃填充复合材料和金属陶瓷;其中所述刚性板和本发明层压材料以面对面关系叠置在一起。
附图简述
图1-4是本发明层压材料的示意图。
图5是本发明制品的示意图。
发明详述
用于防弹和/或防穿透结构的高强度纤维通过复杂方法制备,本身昂贵且还可用于其他应用如绳、商业鱼网、轮胎帘子线和各种增强塑料产品,军用和民用。当军用需求高时,生产能力不能满足所有需求。因为生产能力不能快速提高,所以需要更有效地利用有限量的高强度纤维供应。迄今最低限度开发的资源是短纤维包,它们是所有纤维生产过程因为断裂或其他问题而无意产生的。短纤维包对于机织或预浸渍操作是不需要的。然而,这些包中的纤维可有利地用于毡结构。
本发明包括新层压毡片及其组合体。一个实施方案中,本发明为独立层压材料,所述层压材料包括:包括两侧面并基本由一种或多种按照ASTM D2256-02测定的韧度等于或大于约17克/旦(g/d)的高强度纤维组成的压缩毡片;粘合到所述毡片一个侧面或两个侧面的塑料膜;和任选位于所述毡片和塑料膜侧面之间的粘合剂。
惊人地,发现本发明层压材料及组合体当受到射弹冲击时背面变形出人意料地减小且提供改善的抗穿刺器具穿透的性能。本发明层压材料当浸入时吸收的水还比毡材料吸收的水少。
就本发明目标而言,纤维为拉长体,其长度尺寸比宽度和厚度横向尺寸大许多。从而,术语纤维包括具有规整或不规整横截面的长丝、带、条等。纱为包括许多纤维或长丝的股线。
优选组成本发明层压材料毡的高强度纤维按照ASTM D2256-02测定的韧度为至少25g/d,更优选至少30g/d,最优选至少35g/d。
优选组成本发明层压材料毡的高强度纤维选自:聚烯烃、聚芳酰胺(polyaramid)、聚苯并唑、聚乙烯醇和聚{2,6-二咪唑并[4,5-b4’,5’-e]亚吡啶基-1,4(2,5-二羟基)亚苯基}(PIPD)。更优选所述高强度纤维选自聚乙烯、聚对苯二甲酰对苯二胺、聚苯并唑(PBO)和聚{2,6-二咪唑并[4,5-b4’,5’-e]亚吡啶基-1,4(2,5-二羟基)亚苯基}(PIPD)。
本文中所用术语聚乙烯是指主要线形聚乙烯材料,所述材料可包含少量链支化或每100个主链碳原子不超过5个改性单元的共聚单体,还可包含与其混合、不超过约50%重量的一种或多种聚合物添加剂如烯烃-1-聚合物,尤其是低密度聚乙烯、聚丙烯或聚丁烯,包含单烯烃作为主单体的共聚物、氧化聚烯烃、接枝聚烯烃共聚物和聚甲醛,或低分子量添加剂如氧化剂、润滑剂、防紫外线剂、着色剂等。
高强度聚乙烯纤维可在溶液中成长,如USP 4,137,394或4,356,138中所述,或自溶液纺丝形成凝胶结构,如German Off.No.3,004,699和GB No.2,051,667,尤其USP 4,413,110中所述且以商标SPECTRA售自Honeywell International Inc。USP 4,413,110不与本文不一致的公开内容通过引用结合于本文中。聚乙烯纤维可如UPS5,702,657中所述通过辊压和拉伸法制备并以商标TENSYLON售自ITS Industries Inc。
芳族聚酰胺纤维的情况下,采用芳族聚酰胺制备的合适纤维已在美国专利3,671,542和5,010,168中描述,所述专利通过引用结合于本文中。芳族聚酰胺纤维商业化产自E.I.Dupont Co.(商标为KEVLAR和NOMEX)、Teijin Twaron BV(商标为TWARON、TECHNORA和TEIJINCONEX)、JSC Chim Volokno(商品名为ARMOS)、KamenskVolokno JSC(商品名为RUSAR和SVM)。具有适当高模量和韧度值的聚对苯二甲酰对苯二胺和对苯二甲酰对苯二胺芳族聚酰胺共聚物纤维尤其可用于本发明。用于本发明的一种对苯二甲酰对苯二胺芳族聚酰胺共聚物实例是(对亚苯基3,4′-氧二亚苯基对苯二甲酰胺)共聚物。同样可用于本发明实施的是聚间苯二甲酰间苯二胺纤维。用于本发明实施的合适聚苯并唑纤维已在通过引用结合于本文中的美国专利5,286,833、5,296,185、5,356,584、5,534,205和6,040,050中描述。优选所述聚苯并唑纤维为产自Toyobo Co的ZYLON聚对亚苯基-2,6-苯并双唑纤维。
合适的PIPD纤维已在美国专利5,674,969、5,939,553、5,945,537和6,040,478中公开,所述专利通过引用结合于本文中。优选的纤维是得自Magellan Systems International,LLC的M5。
就本发明目的而言,毡为无规取向纤维的非织造网络,优选其至少一种包含不连续纤维,优选短纤维,优选长度为约0.25英寸(0.64cm)-约10英寸(25cm)。有几种方法铺放这种无规纤维网络,例如通过梳理或流体铺放(空气或液体),以及本领域中常用的熔喷和纺丝铺放。可通过以下方法将网络结合以进行处理,即粘合纤维网络:机械的,如针刺、缝编、水刺、空气交络、纺粘、射流喷网;化学的,如采用粘合剂;和热学的,用纤维点粘合或较低熔点的共混纤维。优选的结合方法为单独针刺或再接着其他方法之一。最优选的毡为针刺毡。
针刺是松散纤维网在称为针刺机的机器上通过机械缠结转变成粘结非织造织物的方法。针刺机产自例如the firms of Oskar DiloMaschinenfabrik KG,Eberbach/N,Germany;Ferher AG,Linz,Austria和Asselin,Elbeuf,France。针刺过程中,尖针将纤维穿入网并收回,使纤维缠结。通过改变每分钟行程、网的行进速率和网的重量,可获得宽范围毡密度。
本发明层压材料的毡组分优选产自面密度为约1-50oz/yd2(0.034-1.67Kg/m2),更优选约2-20oz/yd2(0.068-0.68Kg/m2),最优选约4-10oz/yd2(0.136-0.34Kg/m2)的网。优选针刺密度为约100-2000/平方英寸网(15.5-310冲孔/cm2),更优选约200-1000冲孔/英寸2(31-155冲孔/cm2)。
所述毡在其一个或两个侧面上与一块或两块塑料膜配合,在足够将所述塑料膜粘合到所述毡表面并挤压所述毡的热和压力下。任选,在将所述毡和塑料膜配合之前将粘合剂施加到毡或塑料膜表面。所述粘合剂可作为溶液、熔体或固态膜施加。
所述塑料膜选自聚烯烃、聚酰胺、聚碳酸酯、离聚物、聚酰亚胺、聚氯乙烯、聚酯和聚氨酯膜。优选所述塑料膜为聚乙烯、聚酰胺、聚碳酸酯、离聚物或聚酯。优选所述塑料膜厚度为约0.008mm-约1mm,更优选约0.008mm-约0.5mm。
当粘合剂存在于本发明层压材料中时,其占层压材料的约1-约10%重量。优选,所述粘合剂为按照ASTM D638-03测定的拉伸模量小于约41.3MPa的弹性材料。
各种具有合适低模量的弹性材料和制剂可用作粘合剂。例如,可采用任意以下材料:聚丁二烯、聚异戊二烯、天然橡胶、乙烯-丙烯共聚物、乙烯-丙烯-二烯烃三元共聚物、聚硫化物聚合物、聚氨酯弹性体、氯磺化聚乙烯、聚氯丁二烯、采用邻苯二甲酸二辛酯或本领域众所周知的其他增塑剂增塑的聚氯乙烯、丁二烯-丙烯腈弹性体、异丁烯-异戊二烯共聚物、聚丙烯酸酯、聚酯、聚醚、含氟弹性体、有机硅弹性体、热塑性弹性体、乙烯共聚物。优选,所述粘合剂为乙烯基芳族单体的三嵌段共聚物和共轭二烯烃弹性体,如产自Kraton Polymers Inc的那些。
优选,层压压力为约100-5000psi(0.690MPa-34.5MPa)。当不存在粘合剂时根据塑料膜的软化点和/或高强度纤维的熔点选择层压温度。当所述毡包含高强度聚乙烯纤维时,层压温度优选为100℃-130℃。当所述毡仅含在高于塑料膜熔点熔化的纤维时,那么层压温度优选为100℃至塑料膜的软化点。
粘合剂的软化点应为比塑料膜的软化点或高强度纤维的熔点低的温度。当粘合剂存在时,层压温度为大约粘合剂的软化点至大约塑料膜的软化点或最低熔点的高强度纤维的熔点以下约20℃中较低的一个。
层压操作将塑料膜粘合到毡并挤压所述毡,使之更密实和紧密。优选,本发明层压材料的密度为约0.05g/cm3-1.5g/cm3,更优选约0.1-1.5g/cm3。优选,本发明层压材料的面密度为约0.1Kg/m2-约2Kg/m2。
图1说明了本发明层压材料100,其由高强度纤维的压缩毡10和在所述毡10的一个侧面上的塑料膜20组成。如图2中所示,本发明层压材料200可具有位于毡10和塑料膜20之间的任选粘合剂30。
图3说明了本发明层压材料300,其由高强度纤维的压缩毡10和在所述层压材料300两个侧面上的塑料膜20组成。如图4中所示,本发明层压材料400可具有位于毡10和塑料膜20侧面之间的任选粘合剂30。
优选,本发明层压材料按照ASTM D747-93测定的表观弯曲模量低。低的表观弯曲模量等价于高柔韧性。高柔韧性确保层压材料容易适形于人身体。优选,本发明层压材料按照ASTM 747-93测定的表观弯曲模量小于约10psi(137KPa),更优选小于约5psi(69KPa),最优选小于约2psi(13.7KPa)。
另一个实施方案中,本发明是包括以面对面关系叠置在一起的两个或多个本发明层压材料的制品,其中所述层压材料仅在边缘部分连接,优选通过缝合。“仅在边缘部分”是指边缘约1.5英寸(3.8cm)内的区域。优选,所述层压材料相互不连接。本发明组合体可包含于袋或封袋中。
优选,所述制品是防弹的,抵抗MIL-P-46593A描述的17格令(1.1克)碎片模拟射弹,V50速度为至少约1800ft/秒(549m/秒),比能吸收(SEA)为至少约50J-m2/Kg,按照MIL-STD 662E测定的V50速度的背面变形小于约55mm。
V50速度为射弹穿透制品的可能性为50%的速度。比能吸收(SEA)为V50速度的射弹的动能除以制品面密度,SEA单位为焦-m2/Kg。
优选,所述制品抗尖物体穿透,抵抗撞击能为36焦的“工程钉”威胁,按照NIJ Standard 01150.00 Sept.2000测定的穿透深度(单位毫米),满足以下不等式:
穿透深度,mm<45/制品面密度,lb/ft2
(穿透深度,mm<220/制品面密度,Kg/m2)。
本发明另一实施方案为包含两个或多个本发明层压材料的制品,所述层压材料在上述毡表面和塑料膜之间具有粘合材料,其中所述层压材料以面对面关系粘合在一起。
另一实施方案为包含一个或多个上述本发明层压材料与一个或多个选自以下的纤维层的制品:高强度纤维的机织片;单轴排列和交叉铺网高强度纤维在基体中的片;单轴排列和交叉铺网高强度纤维层压在塑料膜中的片,所述高强度纤维的韧度为至少约17g/d;其中所述纤维层和本发明层压材料以面对面关系叠置在一起。
另一实施方案为包含一个或多个上述本发明层压材料与选自以下的刚性板的制品:机织高强度纤维在基体中的片(粘合在一起);单轴排列和交叉铺网高强度纤维在基体中的片(粘合在一起)和单轴排列和交叉铺网高强度纤维层压在塑料膜中且粘合在一起的片;其中所述刚性板和本发明层压材料以面对面关系叠置在一起。
另一实施方案为包含一个或多个上述本发明层压材料与选自以下的刚性板的制品:陶瓷、玻璃、金属填充复合材料、陶瓷填充复合材料、玻璃填充复合材料和金属陶瓷;其中所述刚性板和本发明层压材料以面对面关系叠置在一起。
提供以下实施例来提供对本发明更完整的理解。列出来说明本发明原则的具体技术、条件、材料、比例和报道数据仅为示例性的且不应理解为对本发明范围进行限定。
实施例
对比实施例1
将按照ASTM D2256-02测定的韧度为30g/d、作为SPECTRA900纱得自Honeywell International inc.的1200旦,120根丝的高强度聚乙烯纱切成1.5英寸(3,81cm)长度。Tex Tech Industries,Portland,ME采用这些纤维制备无规取向、松散连接的高强度纤维的非织造网。以针刺密度为600冲孔/in2(93冲孔/cm2)将所述网针刺制得面密度为8oz/yd2(0.27Kg/m2)、厚度为0.155英寸(0.394cm)的毡片。所述毡片按照ASTM D747-93测定的表观弯曲模量为1.50psi(10.3KPa)。
将13片尺寸为16in×16in(41cm×41cm)的未连接的这种毡以面对面关系叠置在一起。在由2.02in(5.12cm)厚的这种毡片叠层组成的制品的边缘部分夹住其边缘并按照MIL-STD-662E采用MIL-P-46593A描述的17格令(1.1克)碎片模拟射弹(FSP)对其进行弹道测试。弹道测试的结果显示于下表I中。
对比实施例2
将与对比实施例1中所述相同的高强度聚乙烯纤维毡片放入压机中并在116℃、200psi(1.38MPa)压缩1小时。结束时,将压缩的毡从压机中取出并冷却到室温。该0.022英寸(0.056cm)厚压缩毡片按照ASTM D747-93测定的表观弯曲模量为0.53psi(3.6KPa)。
将13片与对比实施例1中所述那些相同的高强度聚乙烯纤维毡片以面对面叠置在一起。将所得叠层片放入压机中并在116℃、200psi(1.38MPa)压缩1小时。结束时,将压缩叠层从压机中取出并冷却到室温。在由16in×16in×0.325in(41cm×41cm×0.826cm)的这种压缩毡片叠层组成的制品的边缘部分夹住其边缘并以与对比实施例1中所述相同的方式对其进行弹道测试。弹道测试的结果显示于下表I中。
实施例1
将与对比实施例1中所述相同的高强度聚乙烯纤维毡片放在0.00035in(0.0089mm)厚线形低密度聚乙烯膜上。将毡片和塑料膜集合体放入压机中并在116℃、200psi(1.38MPa)压缩1小时。结束时,将毡的一个侧面上有塑料膜的本发明层压材料从压机中取出并冷却到室温。该0.022英寸(0.056cm)厚本发明层压材料按照ASTMD747-93测定的表观弯曲模量为0.61psi(4.2KPa)。
实施例2
如实施例1制备13个层压材料并将其以面对面叠置在一起。在尺寸为16in×16in×0.52in(41cm×41cm×1.32cm)未连接层压材料叠层组成的本发明制品的边缘部分夹住其边缘并以与对比实施例1中所述相同的方式对其进行弹道测试。射弹进入制品的薄膜侧。所述制品的某些性能和弹道测试的结果显示于下表I中。
实施例3
将与对比实施例1中所述相同的高强度聚乙烯纤维毡片放在两块0.00035in(0.0089mm)厚线形低密度聚乙烯膜之间。将毡片夹在塑料膜之间的集合体放入压机中并在116℃、200psi(1.38MPa)压缩1小时。结束时,将两表面上有塑料膜的本发明层压材料从压机中取出并冷却到室温。该0.025英寸(0.0635cm)厚本发明层压材料按照ASTMD747-93测定的表观弯曲模量为1.65psi(11.4KPa)。
实施例4
如实施例3制备13个层压材料并将其以面对面叠置在一起。在尺寸为16in×16in×0.455in(41cm×31cm×1.16cm)未连接层压材料叠层组成的本发明制品的边缘部分夹住其边缘并以与对比实施例1中所述相同的方式对其进行弹道测试。所述制品的某些性能和弹道测试的结果显示于下表I中。
实施例5
用苯乙烯-异戊二烯-苯乙烯嵌段共聚物(KRATOND 1107)弹性粘合剂的环己烷溶液将与对比实施例1中所述相同的高强度聚乙烯纤维毡片两表面涂布,然后干燥。所述粘合剂按照ASTM D638-03测定的弹性模量为200psi(1.38MPa)。将所得涂布毡片放在两块0.00035in(0.0089mm)厚线形低密度聚乙烯膜之间。将涂布毡片夹在塑料膜之间的集合体放入压机中并在116℃、200psi(1.38MPa)压缩1小时。结束时,将两表面上有塑料膜且毡和塑料膜之间有粘合剂的本发明层压材料从压机中取出并冷却到室温。
实施例6
如实施例5制备13个层压材料并将其以面对面叠置在一起。在尺寸为16in×16in×0.975in(41cm×41cm×2.48cm)未连接层压材料叠层组成的本发明制品的边缘部分夹住其边缘并以与对比实施例1中所述相同的方式对其进行弹道测试。所述制品的某些性能和弹道测试的结果显示于下表I中。
可以看出:对比实施例的毡和本发明制品的V50和SEA彼此没有明显不同。然而,惊人地,与对比实施例的未压缩或压缩毡相比,在毡表面有塑料膜的本发明制品背面变形小很多。
个体装甲必须能阻止射弹并还必须保护穿着者不受“钝伤”。如果射弹导致装甲过量背面变形,可能产生重伤或甚至死亡。可以看出:由本发明层压材料制备的本发明制品都能有效地阻止射弹和减小钝伤的可能性。
不束缚于为什么本发明起作用的具体理论,认为塑料膜表面有利地改变射弹与毡内纤维相互作用的机理。
对比实施例3
将按照ASTM D2256-02测定的韧度为38g/d、作为SPECTRA1000纱得自Honeywell International inc.的210旦、60根丝的高强度聚乙烯纱切成3.0英寸(7.62cm)长度。将按照ASTM D2256-02测定的韧度为25g/d、产自Teijin Twaron的1000旦、1.5旦/丝的高强度芳族聚酰胺纱切成3.0英寸(7.62cm)长度。Tex Tech Industries,Portland,ME将聚乙烯和芳族聚酰胺短纤维以50/50重量百分比/重量百分比比例混合并采用这些纤维制备无规取向、松散连接的高强度纤维的非织造网。以针刺密度为600冲孔/in2(93冲孔/cm2)将所述网针刺制得面密度为7oz/yd2(0.24Kg/m2)、厚度为0.12英寸(0.305cm)的毡片。
将15片尺寸为16in×16in(41cm×41cm)的未连接的这种毡片以面对面关系叠置在一起。将由这种2.02in.(5.14cm)厚毡片叠层组成的制品的边缘部分夹住其边缘并按照MIL-STD-662E采用MIL-P-46593A描述的17格令(1.1克)碎片模拟射弹(FSP)对其进行弹道测试。弹道测试的结果显示于下表II中。
表1
本发明制品的性能和弹道性能
纤维:聚乙烯(SPECTRA900)
纤维强度:30g/d
短纤维长度:1.5in(3.8cm)
单毡片的面密度:0.0556lb/ft2(0.27Kg/m2)
层压材料或毡片数目:13
薄膜:LLDPE,0.00035in(0.0089mm)
射弹:17gr.FSP
制品的重量百分比 | 制品性能 | |||||||
实施例 | 薄膜 | 粘合剂 | 厚度,cm | 面密度,Kg/m2 | 密度,g/cm3 | V50速度,m/sec | SEA,J-m2/Kg | 背面变形,mm |
对比1 | - | - | 5.12 | 3.49 | 0.068 | 600 | 57 | 98 |
对比2 | - | - | 0.826 | 3.49 | 0.432 | 591 | 54 | 89 |
2 | 1 | - | 1.32 | 3.53 | 2.67 | 567 | 50 | 53 |
4 | 2 | - | 1.16 | 3.57 | 0.309 | 587 | 53 | 43 |
6 | 2 | 2 | 2.48 | 3.62 | 0.146 | 577 | 51 | 38 |
实施例7
将与对比实施例3中所述相同的高强度聚乙烯/芳族聚酰胺毡片放在两块0.00035in(0.0089mm)厚线形低密度聚乙烯膜之间。将毡片夹在塑料膜之间的集合体放入压机中并在116℃、200psi(1.38MPa)压缩1小时。结束时,将两表面上有塑料膜的本发明层压材料从压机中取出并冷却到室温。
实施例8
如实施例7制备15个层压材料并将其以面对面叠置在一起。在尺寸为16in×16in×0.90in(41cm×41cm×2.29cm)、由未连接层压材料叠层组成的本发明制品的边缘部分夹住其边缘并以与对比实施例1中所述相同的方式对其进行弹道测试。所述制品的某些性能和弹道测试的结果显示于下表II中。
实施例9
用苯乙烯-异戊二烯-苯乙烯嵌段共聚物(KRATOND 1107)弹性粘合剂的环己烷溶液将与对比实施例3中所述相同的高强度聚乙烯/芳族聚酰胺纤维毡片两表面涂布,然后干燥。所述粘合剂按照ASTMD638-03测定的弹性模量为200psi(1.38MPa)。将所得涂布毡片放在两块0.00035in(0.0089mm)厚线形低密度聚乙烯膜之间。将涂布毡片夹在塑料膜之间的集合体放入压机中并在116℃、200psi(1.38MPa)压缩1小时。结束时,将两表面上有塑料膜且毡和塑料膜之间有粘合剂的本发明层压材料从压机中取出并冷却到室温。
实施例10
如实施例9制备15个层压材料并将其以面对面叠置在一起。在尺寸为16in×16in×1.21in(41cm×41cm×3.07cm)、由未连接层压材料叠层组成的本发明制品的边缘部分夹住其边缘并以与对比实施例1中所述相同的方式对其进行弹道测试。所述制品的某些性能和弹道测试的结果显示于下表II中。
本发明组合体背面变形减小。
对比实施例4
得自Honeywell International Inc.的GOLD FLEX材料为由四层在基体中的单轴排列和交叉铺网高强度芳族聚酰胺纤维组成、在两外表面结合有塑料膜的纤维复合材料软装甲材料。将17片GOLDFLEX材料以面对面叠置在一起以制得尺寸为16in×16in×0.216in(41cm×41cm×0.549cm)、面密度为4.11kg/m2的制品。在GOLD
FLEX材料叠层边缘部分夹住其边缘并按照对比实施例1中所述对其进行弹道测试。结果如下:
V50:511m/sec
SEA:35J-m2/Kg
实施例11
如实施例3中所述制备6个本发明聚乙烯纤维层压材料并将其以面对面叠置在一起。将8片GOLD FLEX在基体中的单轴排列和交叉铺网高强度芳族聚酰胺纤维片以面对面叠置在一起。如图5中所示将本发明层压材料叠层50和GOLD FLEX纤维复合材料片叠层60背对背结合在一起以形成本发明制品500。所述制品尺寸为16in×16in×0.216in(41cm×41cm×0.549cm)、面密度为3.66kg/m2。在所述制品边缘部分夹住其边缘并按照对比实施例1中所述对其进行弹道测试。射弹70进入所述制品的本发明层压材料侧。
结果如下:
V50:582m/sec
SEA:51J-m2/Kg
表II
本发明制品的性能和弹道性能
纤维:50%重量聚乙烯(SPECTRA1000):50%重量芳族聚酰胺(TWARONHT)
纤维强度:38g/d:25g/d
短纤维长度:3.0in(7.6cm)
单毡片的面密度:0.0486lb/ft2(0.24Kg/m2)
层压材料或毡片数目:15
薄膜:LLDPE,0.00035in(0.0089mm)
射弹:17gr.FSP
制品的重量百分比 | 制品性能 | |||||||
实施例 | 薄膜 | 粘合剂 | 厚度,cm | 面密度,Kg/m2 | 密度,g/cm3 | V50速度,m/sec | SEA,J-m2/Kg | 背面变形,mm |
对比3 | - | - | 5.14 | 3.61 | 0.070 | 573 | 50 | 64 |
8 | 2 | - | 2.29 | 3.68 | 0.159 | 565 | 40 | 34 |
10 | 2 | 2 | 3.07 | 4.25 | 0.138 | 569 | 42 | 29 |
实施例12
按照实施例7中所述制备7个本发明聚乙烯/芳族聚酰胺纤维层压材料并将其面对面叠置在一起。将8片GOLD FLEX单轴排列和交叉铺网高强度芳族聚酰胺纤维在基体中的片以面对面叠置在一起。如图5中所示将本发明层压材料叠层和GOLD FLEX片叠层背对背结合在一起以形成尺寸为16in×16in×0.391in(41cm×41cm×0.993cm)、面密度为4.10kg/m2的本发明制品。在所述制品边缘部分夹住其边缘并按照对比实施例1中所述对其进行弹道测试。射弹70进入所述制品的本发明层压材料侧。
结果如下:
V50:520m/sec
SEA:36J-m2/Kg
对比实施例5
将26块与对比实施例1中所述相同的高强度聚乙烯纤维毡片面对面叠置在一起,在边缘部分夹住其边缘并按照MJ Standard 01150.00,Sept.2000采用P1刀和“工程钉”对其进行防刺性测试。结果显示于表III中。
对比实施例6
将30片GOLD FLEX单轴排列和交叉铺网高强度芳族聚酰胺纤维在基体中的片以面对面叠置在一起,在边缘部分夹住其边缘并按照NIJ Standard 01150.00,Sept.2000采用P1刀和“工程钉”对其进行防刺性测试。结果显示于表III中。
实施例13
用苯乙烯-异戊二烯-苯乙烯嵌段共聚物(KRATOND 1107)弹性粘合剂的环己烷溶液将与对比实施例1中所述相同的高强度聚乙烯纤维毡片两表面涂布,然后干燥。将所得毡放在两块0.010in(0.254mm)厚聚碳酸酯塑料膜之间。将毡片夹在塑料膜之间的集合体放入压机中并在116℃、200psi(1.38MPa)压缩1小时。结束时,将两表面上有塑料膜的本发明层压材料从压机中取出并冷却到室温。如图5中所示将所得层压材料和30片GOLD FLEX材料叠层背对背放置以形成本发明制品。
按照NIJ Standard 01150.00,Sept.2000采用P1刀对该制品进行防刺性测试。按照NIJ Standard 01150.00,Sept.2000采用“工程钉”对第二个相同制品进行测试。本发明层压材料面对该威胁。结果显示于表III中。
实施例14
以与实施例13中所述相同的方式制备两个本发明层压材料并以面对面叠置在一起。如图3中所示将所得层压材料叠层与30片GOLDFLEX材料叠层背对背叠置在一起以形成本发明制品。按照NIJStandard 01150.00,Sept.2000采用P1刀对该制品进行防刺性测试。按照NIJ Standard 01150.00,Sept.2000采用“工程钉”对第二个相同制品进行测试。本发明层压材料面对该威胁。结果显示于表III中。
实施例15
以与实施例13中所述相同的方式制备四个本发明层压材料并以面对面叠置在一起。如图3中所示将所得层压材料叠层与30片GOLDFLEX材料叠层背对背叠置在一起以形成本发明制品。按照NIJStandard 01150.00,Sept.2000采用P1刀对该制品进行防刺性测试。按照NIJ Standard 01150.00,Sept.2000采用“工程钉”对第二个相同制品进行测试。本发明层压材料面对该威胁。结果显示于表III中。
本发明这些制品满足NIJ Standard 01150.00,Sept.2000防护水平I防刺性要求。
实施例16
用苯乙烯-异戊二烯-苯乙烯嵌段共聚物(KRATOND 1107)弹性粘合剂的环己烷溶液将与对比实施例1中所述相同的高强度聚乙烯纤维毡片两表面涂布,然后干燥。将所得毡放在两块0.005in(0.127mm)厚聚酯塑料膜之间。将毡片夹在塑料膜之间的集合体放入压机中并在116℃、200psi(1.38MPa)压缩1小时。结束时,将两表面上有塑料膜的本发明层压材料从压机中取出并冷却到室温。以相同的方式制备另外两个本发明层压材料并将所述三个层压材料面对面叠置在一起。
如图5中所示将层压材料叠层和30片GOLD FLEX材料背对背叠置以形成本发明制品。
按照NIJ Standard 01150.00,Sept.2000采用P1刀对该制品进行防刺性测试。本发明层压材料面对该威胁。采用P1刀的结果显示于表III中。
实施例17
以与实施例16中所述相同的方式制备四个本发明层压材料并以面对面叠置在一起。如图5中所示将层压材料叠层与30片GOLDFLEX材料叠层背对背叠置在一起以形成本发明制品。按照NIJStandard 01150.00,Sept.2000采用“工程钉”对该制品进行防刺性测试。本发明层压材料面对该威胁。结果显示于表III中。
可以看出:本发明制品比毡材料更抗刺入器具穿透。抵抗“工程钉”的穿透深度满足以下不等式:
穿透深度,mm<220/制品面密度,Kg/m2
实施例18
如实施例5中所述制备13个本发明层压材料。将层压材料面对面叠置在一起。将叠层放入压机中并在116℃下施加2000psi(13.8MPa)压力1小时以将所述层压材料粘合在一起。将本发明制品从压机中取出并冷却到室温。
认为该制品的防弹性和/或防刺性类似于实施例6中所见。
实施例19
通过将8片GOLD FLEX材料叠置在一起并在压机中在120℃施加1000psi(6.9MPa)压力1小时将它们粘合在一起来制备刚性板。如实施例3中所述制备6个本发明层压材料并与刚性板叠置在一起以制得本发明制品。认为该制品的防弹性(本发明层压材料面对威胁)会与实施例11的防弹性类似。
实施例20
通过将8片GOLD FLEX材料叠置在一起并在压机中在120℃施加1000psi(6.9MPa)压力1小时将它们粘合在一起来制备刚性板。如实施例5中所述制备6个本发明层压材料,然后在120℃施加1000psi(6.9MPa)压力1小时将它们粘合以及与刚性板粘合在一起来制备本发明制品。认为该制品的防弹性(本发明层压材料面对威胁)会与实施例11的防弹性类似。
表III
按照NIJ-STD-0115.00的防刺性
穿入物能量:36±0.5焦
层数 | |||||||
实施例 | GOLDFLEX材料 | SPECTRA纤维基毡 | 本发明层压材料 | 目标厚度cm | 目标面密度Kg/m2 | 目标密度g/cm3 | 穿透mm |
P1刀 | |||||||
对比5 | - | 26 | - | 9.30 | 6.94 | 0.075 | >70 |
对比6 | 30 | - | - | 0.67 | 6.99 | 1.038 | 40 |
13 | 30 | - | 1(PC) | 0.76 | 7.97 | 1.045 | 34 |
14 | 30 | - | 2(PC) | 0.86 | 8.99 | 1.041 | 30 |
15 | 30 | - | 4(PC) | 0.97 | 11.04 | 1.021 | 15 |
16 | 30 | - | 3(PET) | 0.72 | 9.04 | 1.249 | 27 |
钉 | |||||||
对比5 | 26 | - | 9.30 | 6.94 | 0.075 | >70 | |
对比6 | 30 | - | - | 0.67 | 6.99 | 1.038 | 43 |
14 | 30 | 2 | 2(PC) | 0.86 | 8.99 | 1.041 | 32 |
15 | 30 | 4 | 4(PC) | 1.08 | 11.04 | 1.021 | 19 |
17 | 30 | 4 | 4(PET) | 0.97 | 10.36 | 1.068 | 23 |
(PC):在本发明层压材料上的聚碳酸酯塑料膜
(PET):在本发明层压材料上的聚酯塑料膜
实施例21
如实施例3中所述制备13个本发明层压材料并将其面对面叠置在一起。将0.25英寸(0.635cm)厚氧化铝陶瓷板与层压材料叠置在一起制得本发明制品。认为该制品的防弹性(所述陶瓷板面对威胁)会优于实施例4的防弹性。
实施例22
如实施例3中所述制备13个本发明层压材料并将其面对面叠置在一起。将苯乙烯-异戊二烯-苯乙烯嵌段共聚物(KRATOND 1107)弹性粘合剂的环己烷溶液施加到0.25英寸(0.635cm)厚氧化铝陶瓷板并干燥。将陶瓷板施加到层压材料叠层(粘合剂面朝下)并在压机中在120℃施加1000psi(6.89MPa)压力1小时将层压材料和陶瓷板粘合在一起制得本发明制品。
认为该制品的防弹性(所述陶瓷板面对威胁)会优于实施例4的防弹性。
已如此相当充分详细地对本发明进行描述,应理解不必严格遵守这种细节,而且本领域中技术人员可想起其他变化和改进,这些都属于附录权利要求书定义的本发明范围。
Claims (24)
1.一种独立层压材料,所述层压材料包括:
(a)具有两个侧面并基本由一种或多种按照ASTM D2256-02测定的韧度等于或大于约17克/旦的高强度纤维组成的压缩毡片;
(b)粘合到所述毡片一个侧面的塑料膜;和
(c)任选位于所述毡片表面和所述塑料膜之间的粘合剂。
2.权利要求1的层压材料,所述层压材料的面密度为约0.1Kg/m2-约2Kg/m2。
3.权利要求1的层压材料,所述层压材料的密度为约0.05g/cm3-约1.5g/cm3。
4.权利要求1的层压材料,其中所述高强度纤维选自聚烯烃、聚芳酰胺、聚苯并唑、聚乙烯醇和聚{2,6-二咪唑并[4,5-b4’,5’-e]亚吡啶基-1,4(2,5-二羟基)亚苯基}(PIPD)纤维。
5.权利要求4的层压材料,其中所述高强度纤维选自聚乙烯、聚对苯二甲酰对苯二胺、聚苯并唑(PBO)和聚{2,6-二咪唑并[4,5-b4’,5’-e]亚吡啶基-1,4(2,5-二羟基)亚苯基}(PIPD)纤维。
6.权利要求1的层压材料,其中至少一种所述高强度纤维由长度为约1英寸-约10英寸(2.5-25cm)的不连续长丝组成。
7.权利要求1的层压材料,其中所述塑料膜选自聚烯烃、聚酰胺、聚碳酸酯、离聚物、聚酰亚胺、聚氯乙烯、聚酯和聚氨酯膜。
8.权利要求1的层压材料,其中所述塑料膜厚度为约0.008毫米-约1毫米。
9.权利要求1的层压材料,所述层压材料按照ASTM 747-93测定的表观弯曲模量小于约10psi(69KPa)。
10.权利要求1的层压材料,所述层压材料按照ASTM 747-93测定的表观弯曲模量小于约5psi(34.5KPa)。
11.权利要求1的层压材料,所述层压材料按照ASTM 747-93测定的表观弯曲模量小于约2psi(13.8KPa)。
12.权利要求1的层压材料,其中所述粘合剂为按照ASTMD638-03测定的弹性模量小于约41.3MPa的弹性材料。
13.权利要求1的层压材料,其中所述粘合剂占所述层压材料的约1-约10%重量。
14.一种制品,所述制品包含以面对面关系叠置在一起的两个或多个权利要求1的层压材料,其中所述层压材料仅在边缘部分连接。
15.权利要求12的制品,其中所述层压材料未连接。
16.一种制品,所述制品包含以面对面关系粘合在一起的两个或多个权利要求11的层压材料。
17.权利要求12的制品,所述制品抵抗MIL-P-46593A描述的17格令(1.1克)碎片模拟射弹,V50速度为至少约1800ft/秒(549m/秒),比能吸收(SEA)为至少约50J-m2/Kg,并且V50速度下按照MIL-STD662E测定的背面变形小于约55mm。
18.权利要求12的制品,所述制品满足NIJ Standard 01150.00的防护水平1防刺性要求。
19.权利要求12的制品,其中抵抗撞击能为36焦的“工程钉”威胁,按照NIJ Standard 01150.00 Sept.2000测定的穿透深度,单位为毫米,满足以下不等式:
穿透深度,mm<220/制品面密度,Kg/m2。
20.一种制品,所述制品包括:
(a)一个或多个权利要求1的层压材料;
(b)一个或多个纤维层,所述纤维层选自高强度纤维的机织片、单轴排列和交叉铺网高强度纤维在基体中的片、单轴排列和交叉铺网高强度纤维层压在塑料膜的片,所述高强度纤维的韧度为至少约17g/d;
其中所述纤维层和权利要求1的所述层压材料以面对面关系叠置在一起。
21.一种制品,所述制品包括:
(a)一个或多个权利要求1的层压材料;
(b)刚性板,所述刚性板选自以下:
(i)粘合在一起的机织高强度纤维在基体中的片;
(ii)粘合在一起的单轴排列和交叉铺网高强度纤维在基体中的片;
(iii)粘合在一起的单轴排列和交叉铺网高强度纤维层压在塑料膜的片;
且其中所述刚性板和权利要求1的所述层压材料以面对面关系叠置在一起。
22.权利要求21的制品,其中权利要求1的所述层压材料粘合在一起并粘合到所述刚性板。
23.一种制品,所述制品包括:
(a)一个或多个权利要求1的层压材料;
(b)刚性板,所述刚性板选自陶瓷、玻璃、金属填充复合材料、陶瓷填充复合材料、玻璃填充复合材料和金属陶瓷;
其中所述刚性板和权利要求1的所述层压材料以面对面关系叠置在一起。
24.权利要求23的制品,其中所述权利要求1的层压材料粘合在一起并粘合到所述刚性板。
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US11/130,361 | 2005-05-16 | ||
US11/130,361 US20100015406A1 (en) | 2005-05-16 | 2005-05-16 | Laminated felt articles |
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US (1) | US20100015406A1 (zh) |
EP (1) | EP1883532A2 (zh) |
JP (1) | JP2008540198A (zh) |
KR (1) | KR20080022109A (zh) |
CN (1) | CN101223030A (zh) |
AR (1) | AR058423A1 (zh) |
BR (1) | BRPI0609222A2 (zh) |
CA (1) | CA2609070A1 (zh) |
IL (1) | IL187395A0 (zh) |
MX (1) | MX2007014291A (zh) |
RU (1) | RU2007146414A (zh) |
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-
2006
- 2006-05-12 MX MX2007014291A patent/MX2007014291A/es unknown
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- 2006-05-12 CA CA 2609070 patent/CA2609070A1/en not_active Abandoned
- 2006-05-12 RU RU2007146414/04A patent/RU2007146414A/ru not_active Application Discontinuation
- 2006-05-12 CN CNA2006800258411A patent/CN101223030A/zh active Pending
- 2006-05-12 WO PCT/US2006/018814 patent/WO2006124825A2/en active Application Filing
- 2006-05-12 JP JP2008512419A patent/JP2008540198A/ja not_active Withdrawn
- 2006-05-12 EP EP20060770399 patent/EP1883532A2/en not_active Withdrawn
- 2006-05-12 KR KR1020077029393A patent/KR20080022109A/ko not_active Application Discontinuation
- 2006-05-15 TW TW095117188A patent/TW200706371A/zh unknown
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CN105531561A (zh) * | 2013-08-12 | 2016-04-27 | F·利奇泰里奥股份公司 | 具有包括多个刚性元件的多层结构的弹道防护件 |
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EP1883532A2 (en) | 2008-02-06 |
BRPI0609222A2 (pt) | 2010-03-02 |
WO2006124825A3 (en) | 2007-01-04 |
RU2007146414A (ru) | 2009-06-27 |
CA2609070A1 (en) | 2006-11-23 |
KR20080022109A (ko) | 2008-03-10 |
WO2006124825A2 (en) | 2006-11-23 |
TW200706371A (en) | 2007-02-16 |
IL187395A0 (en) | 2008-02-09 |
AR058423A1 (es) | 2008-02-06 |
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