CN112204080A - 阻燃连续纤维增强热塑性塑料带材 - Google Patents

阻燃连续纤维增强热塑性塑料带材 Download PDF

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CN112204080A
CN112204080A CN201980036037.0A CN201980036037A CN112204080A CN 112204080 A CN112204080 A CN 112204080A CN 201980036037 A CN201980036037 A CN 201980036037A CN 112204080 A CN112204080 A CN 112204080A
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tape
cfrtp
layer
polyphosphonate
polymer compound
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CN112204080B (zh
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M·厄科维奇
R·W·阿瓦基扬
周俭
周崇福
D·弗拉戈
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Avin Co ltd
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Abstract

公开了一种连续纤维增强的热塑性塑料(CFRTP)带材,其由包埋在改性聚对苯二甲酸乙二醇酯(PETG)中的连续单向玻璃纤维制成,所述带材包含多膦酸酯均聚物非卤代阻燃剂(NHFR)。通过采用平衡火焰传播和烟雾探测的配方,根据ASTM E84进行测试时,带材达到A级值。

Description

阻燃连续纤维增强热塑性塑料带材
优先权要求
本申请要求于2018年5月31日提交的美国临时专利申请序列号62/678,550(代理机构案卷号12018010);于2018年8月21日提交的美国临时专利申请序列号62/720,781(代理机构案卷号12018024);和于2018年10月5日提交的美国临时专利申请序列号62/741,902(代理机构案卷号12018026)的优先权,所有美国临时专利申请通过引用纳入本文。
发明领域
本发明涉及一层或多层构型的一层或多层连续纤维增强热塑性塑料(CFRTP)带材,其中,带材是阻燃的。
发明背景
人们从塑料制品中获益。从20世纪中叶其发明至今,热塑性聚合物已成为许多消费品的组成。这些产品相对轻质、坚固且耐腐蚀。
单层或多层构型的连续纤维增强热塑性(“CFRTP”)带材和片材因其轻质、出色的强度、抗冲性能和可回收性而用于汽车、卡车、火车、轮船、航空航天、体育用品以及建筑和构造应用。
通常使用多层构型的CFRTP带材(例如,0°-90°x-层或0°-90°-0°三层),因为其在带材的X和Y方向上都具有比CFRTP单层带材更平衡的机械性能。
基于热塑性聚酯(例如聚对苯二甲酸乙二酯二醇(PETG)共聚物)的CFRTP多层带材已经由Polystrand公司商品化(现在是普利万公司(PolyOne Corporation)的业务)。由无定形PETG聚合物以及连续单向放置的玻璃纤维制成的单层复合带材或多层构型的复合带材具有出色的刚性和韧性、良好的耐化学性以及与其他基材(包括木材、钢、玻璃和其他极性塑料表面)的良好热粘合能力,这允许PETG的CFRT带材能容易地粘附到其他基材上,以用于各种结构加固应用。
发明概述
本领域需要的是为PETG CFRTP带材提供阻燃性,而又不对CRFTP带材的物理性能产生不利影响,从而为该带材提供商业成功。而且,本领域目前优选以非卤素阻燃剂(NHFR)的形式提供阻燃性,以使卤素如氯化或溴化化学品在高温或燃烧条件下的释放最小化。由于担心毒性、持久性和生物累积性,卤代阻燃剂变得不受欢迎或受到严格管制。
本发明的一个方面是一种含非卤代阻燃剂(NHFR)的连续纤维增强的热塑性塑料(CFRTP)带材,其包括(1)聚合物配混物和(2)包埋在所述聚合物配混物内的多根连续单向增强玻璃纤维;其中,所述聚合物配混物包含(a)二醇改性的聚对苯二甲酸乙二醇酯(PETG)共聚物;(b)多膦酸酯均聚物;(c)任选的烟雾抑制剂;(d)任选的添加剂,其中,当根据ASTME84进行测试时,CFRTP带材具有A级值。
本发明的实施方式使用附图进行说明。
附图简要说明
图1是至少两层的多层CFRTP带材的剖视图。
图2是至少三层的多层CFRTP带材的剖视图。
具体实施方式
聚合物
用于本发明的CFRTP带材由购自伊士曼化学公司(Eastman Chemical)的二醇改性的聚对苯二甲酸乙二酯(PETG)开始,其在EastarTM品牌下以多个等级销售。当前优选的是EastarTM 5011共聚酯,因为其是无定形的,具有约1.28的比重,具有良好的机械性能和非常低的雾度和高透射率。玻璃化转变温度为约78℃。
玻璃纤维
玻璃纤维的非限制示例为e玻璃和s玻璃。单一玻璃纤维直径范围可以为约10μm(也称为微米)至约25μm,优选为约14μm至约18μm。玻璃纤维可以以粗纱(roving)的形式引入PETG热塑性塑料中。根据所需增强材料的量,玻璃纤维增强材料可包括连续纤维或连续纤维和不连续纤维两者。取决于聚合物工程师的选择,玻璃纤维的直径和CFRTP带材各层的连续性可以相同或不同。
在本发明的层压材料中,玻璃纤维包含约50重量%至约65重量%、优选约55重量%至约62重量%的带材层,并且剩余的百分比为PETG热塑性树脂、NHFR以及少量(如存在)任选的功能添加剂。取决于聚合物工程师的选择,各带材层中的玻璃纤维的重量百分比可以是相同或不同的。
连续增强玻璃纤维可以占每层片材的约30体积%至约75体积%、优选约35体积%至约55体积%,并且剩余体积百分比为用作基质的热塑性聚合物,包括少量(如果有)任选的功能添加剂。取决于聚合物工程师的选择,各层片材中的连续增强纤维的体积百分比可以是相同或不同的。
非卤代阻燃剂
当将热塑性聚合物制成存在于占用结构中或用于存放有价值的有形个人财产的塑料制品时,阻燃性特别重要。阻燃性的目的是减慢或者可能是消除塑料制品的任何燃烧或熔化。燃烧的延迟可以允许从所占结构中更彻底地撤离或取出有价值的财产。
NHFR化学品目前受欢迎,特别是基于磷的化学品。在本发明中基于磷的NHFR化学品中,优选使用多膦酸酯,因为磷含量是在聚合物内,在使用期间大分子不太可能在聚合物树脂中迁移。此外,多膦酸酯均聚物以粒料形式出售,比粉末形式更优选,以允许阻燃剂易于进料至熔融混合挤出机,特别是单螺杆挤出机中。
已知多膦酸酯由FRX聚合物公司(FRX Polymers)以商品名
Figure BDA0002803130330000033
出售。已知
Figure BDA0002803130330000031
多膦酸酯均聚物具有以下重复单元结构,并且,低聚多膦酸酯和均聚多膦酸酯之间基于重均分子量(Mw)的差异大于10,500g/mol。
Figure BDA0002803130330000032
本发明出乎意料地确定,如使用ASTM E84-18(2018年)测试条件(也称为斯坦纳隧道测试(Steiner Tunnel test))所测量的,某些等级的由FRX聚合物公司所提供的多膦酸酯可以为PETG基CFRTP带材提供或预期提供优异阻燃性能。最高的测试结果等级为A级,其中,火焰蔓延指数(FSI)≤25,烟雾产生指数(SDI)≤450。
重均分子量可以由聚合物的熔体体积流动速率(MVR)推断。通常,MVR越高,重均分子量越低。尽管FRX聚合物公司未公布其不同等级的重均分子量,但已对具有以下MVR值的FRX聚合物公司的现在市售低聚物和均聚物等级的Mw、Mn和Mw/Mn进行了测试。
Figure BDA0002803130330000041
*此处记录的MVR数据基于这些NofiaTMHM等级的数据表。虽然MVR(如果在相同条件下测量)和Mw通常存在相反的趋势,但在这种情况下,MVR的测量值受温度差异的影响,因为这些等级之间的熔体流动差异很大。
**NofiaTMHM系列的分子量数据是通过GPC方法,以四氢呋喃为溶剂、单分散聚苯乙烯为校准标准物测量的。当前,对于OL5000低聚物和HM7000均聚物的市售产品,Mw和Mn存在明显差距。本领域技术人员能够通过使用GPC方法测量Mw和Mn来确定足够的分子量和多分散性。因此,所要求保护的发明以多膦酸酯均聚物的性能达到ASTM E84测试中的A级值为条件。
FRX聚合物公司将多膦酸酯均聚物(即,HM级)与共聚物级和反应性低聚物级区别开来。由于如实施例中所记录的出乎意料的结果,本发明采用用HM命名的多膦酸酯等级。可用于所要求保护的发明中的多膦酸酯均聚物的重均分子量可以是大于10,500g/mol、期望大于15,000g/mol、并且优选大于20,000g/mol的任何量。
任选的添加剂
本发明带材的层的热塑性基质可包含常规塑料添加剂,其量足以使配混物获得所期望的加工性质或性能。添加剂的量不应造成添加剂的浪费或对配混物的加工性质或性能有害。热塑性配混(特别是CFRTP)领域的技术人员无需过多的实验,仅须参考一些文献,例如来自塑料设计库(Plastics Design Library)(elsevier.com)的《塑料添加剂数据库(Plastics Additives Database)(2004)》,就可选择许多不同类型的添加剂加入本发明的配混物中。
任选的添加剂的非限制性例子包括:粘合促进剂;杀生物剂(抗菌剂、杀真菌剂和防霉剂)、抗雾化剂;抗静电剂;粘结剂、起泡剂和发泡剂;分散剂;填料和增量剂;防火剂、阻燃剂和烟雾抑制剂;抗冲改性剂;引发剂;润滑剂;云母;颜料、着色剂和染料;增塑剂;加工助剂;脱模剂;硅烷、钛酸盐/酯和锆酸盐/酯;滑爽剂和防黏剂;稳定剂;硬脂酸酯/盐;紫外线吸收剂;粘度调节剂;蜡;以及它们的组合。
就燃烧过程中产生烟的问题而言,常规烟雾抑制剂可包括在带材的配方中。
表2显示了可用于NHFR CFRTP带材的成分的可接受的、所需的和优选的范围,全部都分别表示为基于整个带材或整个聚合物的重量百分数(重量%)。该带材或聚合物可分别包含这些成分、基本上由这些成分组成或者由这些成分组成。任何所述范围端点之间的数值也被设想为一个范围的端点,从而所有可能的组合均在表2所设想的可能范围中,以分别作为本发明所用的候选带材和聚合物。
Figure BDA0002803130330000051
如果根据ASTM E84进行测试时,CFRTP带具有A级等级,则相对于聚合物配混物的总重量,多膦酸酯NHFR的优选范围可以在8%至15%之间。对于玻璃纤维含量约为58%的PETG CFRTP,希望在聚合物配混物中具有最低的多膦酸酯NHFR加载量,但其量足以达到ASTM E84的A级等级(尤其是火焰蔓延指数≤25)。由于制造的波动性和ASTM E84测试的固有测试波动性,如果足够的量是5%或6%或7%或8%或9%或10%或11%或12%或13%或14%,并且还要达到A级值,那么具有足够量的多膦酸酯均聚物的聚合物配混物是本发明的一部分。
此外,如在以下实施例中记录的数据中可见,已发现聚合物配混物中较低的多膦酸酯浓度对应于较低的烟雾指数,这是ASTM E84测试规程的关键部分。因此,出乎意料的是,使用适量的多膦酸酯均聚物作为适当“足够量”的所选NHFR时,存在火焰蔓延和烟雾释放之间的平衡。
加工
带材的各层都可以通过拉挤成型工艺制成,其中,股线连续拉动通过聚合物浴允许形成带材、片材或股线的其他挤出形状,以增加以该挤出形状熔合在这些股线上的聚合物。许多公司制造拉挤成型增强聚合物复合材料,包括普立万公司,通过其高级复合材料集团(Advanced Composites Group)(特别是销售热塑性纤维增强复合材料的PolystrandTM业务部)。拉挤成型方法、材料和技术的实例提供于美国专利号5,084,222;美国专利号5,556,496;美国专利号6,955,735;美国专利号8,663,414;和美国专利号9,393,741;美国专利申请公开US20170037208;和PCT专利公开WO2017180784。由带材卷制造复合材料的示例发现于美国专利号9,333,732(Pilpel等人)中。将带材接合至基材的示例发现于美国专利号US2015165731(Pilpel等人)中。所有这些专利文献的公开内容都通过引用纳入本文。
参见图1,多层带材100具有第一层120,所述第一层120包含沿X1方向(也称为多层的0°方向)以基本平行阵列取向的多根连续单向增强纤维130,以提供连续纤维增强体。
带材100还具有第二层140,所述第二层140包含沿X2方向(从文件纸面出来,仅看见端部)以基本平行阵列取向的多根连续单向增强纤维150,从而也提供连续纤维增强体。
带100至少具有相邻关系的第一层120和第二层140,其中,X1和X2方向相差至少45°,并且图1中显示为90°。
多层带材可以有超过两层。在一个实施方式中,带材可包含第三层,其中,第三层也具有取向为X3的连续纤维增强体,X3与X1、X2或两者相同或不同。更具体地说,如图2所示,带材100可具有与第二层140相邻的任选的第三层160,第三层160包含多个连续单向增强纤维170,所述连续单向增强纤维170也沿X3方向以基本平行阵列取向。在图2中,X3方向与X1方向相同,并且X2方向与X1方向和X3方向垂直。
在多层中,任意第三层160可以与第一层120或第二层140或两者相邻。
其它实施方式可以是4层或更多层,并且附加层与层120或140或160相同,或者是X4方向的新层。该类型的多层带材的构思可以在本领域普通技术人员所考虑范围内以各种数量和层的组合拓展,而无需过多的实验。
其他实施方式将X1和X2方向设置为相差45°至90°之间的任意角度,而不必穷举46至90度之间的每个角度。在可用的应用中,多层带材中保留的曲率或应变方向应大致沿X1方向对齐,偏差不大于10°。
在本发明中具体考虑了层的增强方向的这些各种实施方式的任意可能组合,而不必重复每一可能组合。
如上所述,对于如图1所示的带材100的X层,两层增强聚合物以纤维增强物的各种相对取向结合在一起,以形成单个多层带材构型。
纤维120在热塑性基质中的单向取向或对齐(即,X1方向)可定义为多层带材的参考方向或0°方向。取决于其它层的各层相对于参考方向的旋转角度,多层的其它层中连续增强纤维的取向相对于参考方向来识别。
在用于特定的建筑或建筑组件中时,多个层相对于其各自取向的层压是决定增强热塑性复合层压材料的强度、柔性和其它物理性能的重要因素。
层数的非限制性示例可以为2至20层,并且取向可以是0°和90°以及它们之间的任意角度的任意组合。因此,本发明不限于复合材料中任意特定数量的层,也不限于复合材料中层取向的任意特定组合。
通过解释术语,一种流行的多层带材是具有0°/90°/90°/0°构型的4层带材,其中,第一层120和第三层160(在该情况下为最外层)具有沿0°方向的连续增强纤维,并且两个第二层140(中间层)具有沿90°方向的连续增强纤维。在本发明的多层带材的现场应用中,带材可以处于(弯曲、拉伸或压缩类型的)恒定施加的曲率或应变下,该曲率或应变大致沿着多层中第一层(0°)的方向,其中,施加应变的角度偏差在+/-10°以内。
单个层120可以包括多个连续玻璃纤维增强纤维股线,各股线沿预定的一致方向延伸。以0°对齐的股线优选是连续的,因为其沿着带材100的长度不间断延伸,并且优选单向延伸。
层120和140和160各自的厚度(Z方向)可以由增强复合结构领域的普通技术人员确定。在形成带材100时,层120和140以及任选的层160的厚度的任意可能的厚度组合都是可能的。
例如,带材100可以使用0°/90°/0°取向的三层来制造,其中,唯一内层的厚度不同于两个外层的厚度,反之亦然,或者具有三个不同厚度。
尽管本文将带材描述为由具有不同增强方向和不同热塑性材料的两层或更多层增强热塑性塑料层形成,但是在本发明的范围内,层数可以从至少两层变化为多达20层,以产生所需强度和柔性。
在理解本公开的情况下,本领域普通技术人员无需过度实验就可以确定各层的取向可以变化,所述取向以偏离第一层方向(0°)的角度表示。在一个实施方式中,其他层各自的取向可以是45°至90°或-45°至-90°的任何角度。
一般说来,就四层而言,取向可以是0°/45°或更大/45°或更大/0°,其中,第一层(0°层)是最外层。
更一般地来,就三层或更多层而言,取向可以是0°/(45°或更大乘以n)(0°乘以m)/0°,其中,n为1至8,并且m为0至7,第一层是最外层。而且,更一般地来,就三层或更多层而言,取向可以是45°或更大/(0°乘以n)(45°或更大乘以m)/45°或更大,其中,n为1至8,并且m为0至7,一层或多层第一层是不是最外层。
在掌握这些可能性后,为了聚合物工程性能,制造纤维增强复合材料领域的普通技术人员可以在带材中构造任意可能的层组合,而无需进行过多实验。
本发明的实用性
多层构型的CFRTP带材现在可以更好地用于许多同时需要良好机械性能、良好抗ESC性、良好耐热性和出色阻燃性的应用。然而,CFRTP带材仍然是成本节约的。如上所述,由于其在ASTM E84测试的最高等级处的轻质、出色强度、抗冲击性、可回收性和阻燃性,最终应用可以是汽车、卡车、火车、航空航天以及建筑和构造应用。
CFRTP带材可在不使用其它层压层的情况下使用,也可受益于与其它材料(例如,聚合物膜或有机涂料、木材、金属和陶瓷)层的层压或涂覆,所有这些取决于预期用于带材结构的最终用途。
目前优选是总厚度为5密耳至200密耳(0.127mm至5.0mm)、优选8密耳至50密耳(0.203mm至1.27mm)的NHFR PETG CFRTP。为了获得这样的总厚度,可以使用单层或多层,并且具有如上所述和下文列举的层的多个取向。本发明的实施例和比较例中使用的样品的厚度为32密耳至40密耳(0.81mm至1.01mm)。
当将上述带材粘贴到基于PET、PETG、聚碳酸酯、聚苯乙烯、三聚氰胺或聚氨酯材料的泡沫基材或蜂窝结构基材上时,上述的任意带材可以用于制备NHFR层压板。无需过多实验即可制造层压增强复合材料的本领域技术人员可以确定要制造哪种类型的复合材料,尤其是CFRTP带材与泡沫或蜂窝结构基材之间不需要粘合剂的那些层压复合材料。在没有粘合剂的情况下,在任意带材与木基基材的层压板中也可以实现相同的优选粘贴,如在含非卤代阻燃剂(NHFR)的层压板(其包含本公开的带材和木基基材(木料(lumber wood)或工程木材))中所公开的,其中,带材和木基基材之间不需要粘合剂,如美国专利申请公开US2015165731(Pilpel等人)所教导的。
实施例
表3显示了测试的配方。表4显示了带材的测试结果。实施例的单向CFRTP带材是使用单螺杆挤出机制备的,该单螺杆挤出机具有2.5英寸(6.3cm)直径、L/D比为24:1的螺杆和4个在约580℉(305℃)下运行的加热桶区,从而使聚合物配混物成分熔化并混合,然后将其进料至纤维浸渍设备,在该设备中将由连续单向玻璃纤维形成的网状物拉过聚合物配混物熔体并用聚合物配混物的熔体进行润湿,然后进行冷却以形成带材。根据相对于0°或沿X1方向的参考单向CFRTP带材层中的玻璃纤维构型的取向角度,各单向CFRTP带材层中的玻璃纤维构型的取向角度,通过对多个单向CFRTP带材进行切割和层压来进一步制成多层带材,如图1所示。
使用以下ASTM测试:
挠曲测试:在0°/0°/0°/0°/0°/0°构型的六层带材上的ASTM D790。
落锤冲击测试(Dynatup Impact Test):在0°/90°/90°/0°构型的四层带材上的ASTM D3763。
NBS烟室测试(燃烧模式):在0°/90°/90°/0°构型的四层带材上的ASTM E662。
锥形量热法:在0°/90°/90°/0°构型的四层带材上的ASTM E1354。(MAHRE(最大平均放热率,kW/m2);峰值放热率(kW/m2);平均SEA(m2/kg);总烟雾释放量(m2/m2))。
极限氧指数(LOI):在0°/90°/90°/0°构型的四层带材上的ASTM D2863。
FAA垂直燃烧-60秒:在0°/90°/90°/0°构型的四层带材上的FAR 25.853。
斯坦纳隧道测试:在0°/90°/90°/0°构型的四层带材上的ASTM E84。ASTM E84测试不时进行修订。测试中使用的ASTM测试E84版本是ASTM E84-18。
Figure BDA0002803130330000111
Figure BDA0002803130330000121
Figure BDA0002803130330000131
Figure BDA0002803130330000141
Figure BDA0002803130330000151
Figure BDA0002803130330000161
比较例A得到B级ASTM E84,这是不可接受的。比较例B得到A级ASTM E84,但是使用了卤代阻燃剂。比较例C、D和F是不可接受的,因为将FRX低聚多膦酸酯与PETG 5011树脂一起使用不能在基于单螺杆挤出机的设备上成功拉挤成型。
比较例G和H是不可接受的,因为结晶PET树脂等级(
Figure BDA0002803130330000171
EN067)和多膦酸酯均聚物树脂(
Figure BDA0002803130330000172
HM 7000和1100)的干掺混物不能在相同设备上成功拉挤成型。尽管不限于特定理论,但据信使用具有相似熔融加工温度范围(如果单独使用)的热塑性基础树脂粒料(在该情况下为PETG)和阻燃树脂粒料(在该情况下为多膦酸酯均聚物)的掺混物对于在基于单螺杆挤出机的设备上成功拉挤成型非常重要。如果另外使用结晶PET载体树脂将阻燃添加剂(例如,多膦酸酯均聚物)配混成母料树脂,然后将母料粒料和结晶PET基础树脂(例如
Figure BDA0002803130330000173
EN067)进料至单螺杆挤出机中,拉挤成型工艺也应正常进行。
由于在ASTM E84的A4部分中金属支撑件的使用仅限于杆(段落A4.4),比较例E在测试期间下垂。然而,仅具有杆支撑件的实施例4(几乎)通过了ASTM E84A级评定。实施例4的结果使得对于本发明目的而言,加载量为5重量%的多膦酸酯均聚物为“足够的量”。此外,实施例11的结果显示出对于本发明目的而言,加载量为8重量%的多膦酸酯均聚物为所需的“足够的量”。
尽管不受限于特定理论,但据信膦酸酯低聚物的重均分子量不足以允许以15和30重量%的低聚物使那些配方的带材成功拉挤成型。这是出乎意料的,因为低聚物有意是反应性的。
如上所述,成功的测试使用了足够量的多膦酸酯均聚物等级。实施例1使用14重量%的多膦酸酯均聚物级实现A级ASTM E84等级,表明基于锥形量热测试结果,使用26重量%或30重量%的配方也可能实现A级评级。换句话说,考虑到ASTM E84测试协议中的FSI和SDI测试结果以及实施例1中的锥形量热法和斯坦纳隧道测试之间的相关性,可以预期实施例2和3的斯坦纳隧道测试也将产生ASTM A84的A级。
实施例6-11的结果清楚地表明,在8重量%至15重量%的整个重量百分比范围内,均获得了ASTM E84的A级评级。在实施例11的情况下,该测试是对比例E测试的重复,不同之处在于,按ASTM E84第A4部分的要求,使用的金属支撑件包括杆和镀锌钢网状物。
当将加载的重量百分比与总烟雾释放量进行比较时,有一个明显的趋势是:总烟雾释放量(锥形量热测试结果之一)会随着相同多膦酸酯均聚物(HM7000)加载量增加而增加:比较例A(0%-330)、实施例4(5%-501),比较例E(8%-536)、实施例1(14%-599)、实施例2(26%-666)和实施例3(30%-702)。实施例2和实施例3之间的配方差异是在实施例3中存在烟雾抑制剂,结果上的偏差对所使用的特定烟雾抑制剂而言是常见的。因此,烟雾抑制剂是任选的,取决于聚合物配混技术人员在不进行过多实验的情况下进行的结果。
因此,出乎意料的结果是,减少多膦酸酯均聚物的量会减少烟雾释放量,但过多地限制烟雾释放量会导致ASTM E84测试结果不是A级,即使使用同时包括杆和网状物的金属支撑件进行测试也是如此。无论所用的金属支撑件是什么,ASTM E84的A级评级对于本发明保护范围内的配方而言都是必须的。
此外,考虑比较例C、D和F,使用低分子量(重均Mw<10,500)的多膦酸酯低聚物树脂和PETG树脂的干掺混物不能在基于单螺杆挤出机的设备上成功地拉挤成型。
因此,基于这些实验结果,本领域普通技术人员无需进行过多实验即可调整对具有足够重均分子量的多膦酸酯均聚物等级的选择,该等级的量应是足够的量(例如约5重量%),从而在阻燃(ASTM E84A级评级)量与释放和检测到的烟雾量(总烟雾释放量)之间提供平衡。
本发明不限于上述实施方式和实施例。见所附权利要求。

Claims (18)

1.一种含非卤代阻燃剂(NHFR)的连续纤维增强的热塑性塑料(CFRTP)带材,其包含:
(1)聚合物配混物;和
(2)包埋在聚合物配合物中的多根连续单向增强玻璃纤维;
其中,聚合物配混物包含:
(a)二醇改性的聚对苯二甲酸乙二醇酯(PETG)共聚物;
(b)多膦酸酯均聚物;
(c)任选的烟雾抑制剂;和
(d)任选的添加剂,
其中,当根据ASTM E84测试时,CFRTP带材具有A级值。
2.如权利要求1所述的CFRTP带材,其中,多膦酸酯均聚物的重均分子量(Mw)为约10,500g/mol至约100,000g/mol。
3.如权利要求1或权利要求2所述的CFRTP带材,其中,多膦酸酯均聚物的重均分子量(Mw)为约15,000g/mol至约100,000g/mol。
4.如权利要求3所述的CFRTP带材,其中,多膦酸酯均聚物的Mw/Mn比率范围为约2至约6。
5.如权利要求1-3中任一项所述的CFRTP带材,其中,聚合物配混物中多膦酸酯均聚物的重量百分比范围为约5至约30。
6.如权利要求1-3中任一项所述的CFRTP带材,其中,聚合物配混物中多膦酸酯均聚物的重量百分比范围为约5至约20。
7.如权利要求1-3中任一项所述的CFRTP带材,其中,聚合物配混物中多膦酸酯均聚物的重量百分比范围为约8至约15。
8.如权利要求1-7中任一项所述的CFRTP带材,所述CFRTP带材进一步包含烟雾抑制剂,其占聚合物配混物的重量百分比为约1至7。
9.如权利要求1-8中任一项所述的CFRTP带材,其中,任选的添加剂选自下组:粘合促进剂;抗雾化剂;抗氧化剂;抗静电剂;杀生物剂;粘结剂、起泡剂或发泡剂;粘土;分散剂;纤维;填料和增量剂;抗冲改性剂;引发剂;润滑剂;云母;颜料、着色剂和染料;增塑剂;加工助剂;脱模剂;硅烷、钛酸盐/酯和锆酸盐/酯;硅酸盐;滑爽剂和防黏剂;稳定剂;硬脂酸酯/盐;紫外线吸收剂;粘度调节剂;蜡;以及它们的组合。
10.如权利要求1-9中任一项所述的CFRTP带材,其中,玻璃纤维的单根直径范围为约10μm至约25μm。
11.如权利要求1-9中任一项所述的CFRTP带材,其中,连续玻璃纤维包埋在PETG中,其中玻璃纤维的单根直径范围为约10μm至约25μm。
12.如权利要求10所述的CFRTP带材,其中,CFRTP带材中的玻璃纤维占带材的约55重量%至约62重量%。
13.如权利要求1-12中任一项所述的CFRTP带材,其中,CFRTP带材的厚度为约0.127mm至约5.0mm。
14.如权利要求13所述的CFRTP带材,其中,CFRTP带材的厚度为约0.203mm至约1.27mm。
15.如权利要求1-14中任一项所述的CFRTP带材,其中,CFRTP带材是具有以0°方向取向的至少一层和以90°方向取向的至少一层的多层带材。
16.如权利要求15所述的带材,其中,多层带材包括两层、三层、四层、五层、六层或七层。
17.一种含非卤代阻燃剂(NHFR)的层压板,其包括如权利要求1-16所述的带材和基于PETG、PET、聚碳酸酯、聚苯乙烯、三聚氰胺或聚氨酯的泡沫或蜂窝结构基材中的任何一种或多种。
18.一种含非卤代阻燃剂(NHFR)的层压板,其包括如权利要求1-16所述的带材和基于木材的基材。
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