CN103068553A - 作为用于线材和缆线的加强件的纤维增强的、热塑性带 - Google Patents
作为用于线材和缆线的加强件的纤维增强的、热塑性带 Download PDFInfo
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- CN103068553A CN103068553A CN2011800390134A CN201180039013A CN103068553A CN 103068553 A CN103068553 A CN 103068553A CN 2011800390134 A CN2011800390134 A CN 2011800390134A CN 201180039013 A CN201180039013 A CN 201180039013A CN 103068553 A CN103068553 A CN 103068553A
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- fiber
- band
- cable
- resin
- reinforcement
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Images
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Abstract
纤维增强带,其包括纵轴、至少30wt%的纤维和至少2wt%的热塑性树脂,条件是在该带中的纤维的至少30%沿带的纵轴呈至少部份地取向。该带作为用于电线和缆线结构的、特别是光纤缆线结构的加强件是有用的。
Description
本发明的背景
1.本发明的领域
本发明涉及线材和缆线。在一个方面,本发明涉及线材或缆线的加强件而在另一个方面,本发明涉及以纤维增强带的形式的加强件。在还有的另一个方面,本发明涉及用于制造呈纤维增强带的形式的加强件的方法,而还有的在另一个方面,本发明涉及包括纤维增强带加强件的线材和缆线。
2.相关现有技术的叙述
光导纤维的缆线是一种设计成为光纤提供足够的防护以使其免受不利水平的纵向和横向应力的复杂结构。另外,在光纤的使用寿命中,该结构也提供了的良性的化学和物理环境。在光导纤维的缆线和电力缆线之间的一个根本区别是,在电力缆线中的金属导体负载了在安装和服役条件的期间所产生的拉伸应力的至少一部分。相比之下,光导纤维的缆线所包含的集成在缆线中的加强件明确地将纤维从拉伸和压缩应力中隔离开。当设计光导纤维的缆线和它的零件(包括加强件)时,在必须考虑的许多标准之中,足够的拉伸和压缩强度(能够承受小半径弯曲、容易的纤维加工和缆线安装以及有竞争力的成本只是一小部分的标准。
对于光导纤维的缆线,许多类型的设计是可利用的,设计的选择取决于应用。无论什么选择,全部都要求一些类型的加强件在安装和实际使用期间都能够负载缆线的拉伸和压缩应力。
如今,在使用中的加强件主要由纤维增强塑料(FRP)(其中如果玻璃纤维是增强材料的话,其亦称玻璃增强塑料(GRP))或者不锈钢制成。传统上,FRP或GRP通过使用一种或多种例如乙烯基酯或环氧的热固性树脂,通过纤维拉挤成型工艺来进行制作,但该工艺的速度是非常限制性的。另外,如今可利用的GRP或FRP/热固性树脂复合材料倾向于具有过大刚性,而且这使得包括这些加强件的光纤缆线的安装变得困难,特别是使得在建筑物附近或沿着繁忙的城市街道(此处缆线的尖锐的弯曲经常是必须的)的该安装变得困难。对于不锈钢和松散的芳族聚酰胺纱,前者是相对昂贵的和重的而后者在制造工艺过程中是难以处理的而且它们在缆线内占了很多空间。
长纤维增强的热塑性塑料(LFT)的技术,通过注塑成型工艺来用于制造汽车行业的前面板,并且呈条状或粒料形式的LFT材料以各种纤维和树脂体系来在市场中广泛使用。也将它们定制生产成特定规格。
发明内容
在一个实施方案中,本发明是以纤维增强的热塑性带形式的加强件。在一个实施方案中,该带包括通过使用LFT材料所制造的纤维束,其已经通过挤出机来处理了,这将至少一部分的纵向的取向赋予到纤维上,这进而赋予该带的模量比热塑性树脂本身的模量大,是它的四倍或更高。该带作为在光纤缆线和其他线材和缆线应用中的加强件是有用的。
在一个实施方案中,本发明是具有纵轴的纤维增强带,该带包括至少30wt%的纤维和至少2wt%的热塑性树脂,条件是在带中的至少30%的纤维至少部份地沿带的纵轴取向。
在一个实施方案中,本发明是制造纤维增强的热塑性带的方法,该方法包括以下步骤:(A)制备长纤维热塑性塑料的粒料或条带,其包括至少30%的纤维和至少2wt%的热塑性树脂;(B)从该粒料或条带形成可挤出的物料;以及(C)将该物料挤出形成具有纵向和横向尺寸的带;条件是至少30%的纤维纵向取向。
在一个实施方案中,本发明是包括纤维增强带的线材或缆线结构,其中该带包括至少30wt%的纤维和至少2wt%的热塑性树脂,条件是至少30%的在带中的纤维至少部份地沿带的纵轴进行取向。在一个实施方案中,本发明是包括纤维增强带的光纤缆线。
本发明支持在LFT材料中的高纤维含量和长纤维长度。在本发明的设计之下,具有各种纤维填充重量的LFT条带(如,4-12毫米(mm)长),通过使用预定温度分布和模头(die)设计的挤出机进行处理,来生产呈薄带(其厚度典型如低于2mm)形式的复合材料纤维束。一旦材料通过控制带卷绕速度而退出该模头,可获得25%或更多的拉制。该拉制帮助纤维在复合材料中沿纵向进行取向。因为高纤维填充和该取向,LFT复合材料带沿纵向的拉伸模量可以超过单独树脂的模量的四倍。该高模量特征能够让复合材料带作为光纤缆线的合格加强件,这可以帮助降低缆线的夹套或其他防护层的厚度。该带也能够替代光纤缆线中的芳族聚酰胺纱,其是昂贵的而且难以加工。
使用LFT纤维束带作为在线材和缆线特别光纤缆线应用中的加强件,相比于常规加强件在线材或缆线中的应用,能够获得一种或多种以下的优点:
A.轻重量,
B.更好的制造效率,因为使用挤出技术,而不是纤维拉挤技术,
C.更加紧凑的缆线,因为相比于松散芳族聚酰胺纱,该带能够更紧地在光纤束附近进行包裹,
D.额外的抗挤压性,
E.可回收性,
F.通过将水阻滞剂引入到配方中导致的水阻性,和
G.可交联性。
本发明的纤维增强带是用于线材和缆线应用中的有效加强件,并且对于目前的在光纤缆线中的FRP/GRP或芳族聚酰胺加强件而言,它们是可行的替代件。
附图说明
图1是用于制造本发明的复合材料带的双螺杆挤出机的温度和压力分布的示意图。
图2是使用60wt%纤维填充量来挤出的本发明的复合材料带的图示。
图3是报告了挤出的和模塑的复合材料以及纯树脂的模量的比较的图表。
图4是报告了挤出的和模塑的样品的峰值应力的比较的图表。
具体实施方式
定义
除非相反地指出,除非上下文暗示或本领域中存在习惯,否则所有份和百分数都基于重量计,并且所有测试方法都是本公开的申请日现存的。针对美国专利实践的目的,任何引用的专利、专利申请或出版物的内容,通过引用来将它们的全部内容引入(或者通过引用来将它的等同的美国版本如此引入),特别是引入关于定义(达到在范围上不得与在本公开中具体地提供的任何定义不一致的程度)和在本领域中的公知常识的公开内容。
在本公开中的数字范围是近似的,因此,除非另有说明,其可以包括在该范围以外的值。数字范围包括从下限值到上限值(包括该下限值和上限值)的、以一个单位增加的所有值,条件是在任意下限值和任意上限值之间存在至少两个单位的间隔。例如,如果组成、物理或其他性能,例如厚度等等是从100到1,000,则明确地列举了所有单个数值例如100,101,102等等以及子范围例如100到144,155到170,197到200等等。对于含有低于1的数值范围或者含有大于1的分数(例如1.1、1.5等)的数值范围,酌情认为一个单位是0.0001,0.001,0.01或0.1。对于含有小于10的单个数(例如1-5)的范围,通常认为一个单位是0.1。这些仅是具体表述内容的示例,且应当认为在本公开内容中清楚地指出了在所列举的最低值与最高值之间所有可能的数值组合。在本公开之内,数字范围尤其用于提供配方的组分的数量,厚度等等。
“长丝”和类似术语是指单根、连续的丝状的细长材料,其长度与直径之比大于10。
“纤维”和类似术语是指细长的条状的缠结长丝,其一般具有圆形横截面而且长度与直径之比大于10。
“缆线”和类似的术语是指至少一根线材或光纤在保护外套或护套内部。通常,缆线是捆束在一起的两根或更多根线材或光纤,其通常在共同的保护外套或护套中。所述外套中的单根线材或纤维可以是裸露的、包覆的或绝缘的。组合缆线可以同时包含电线和光纤。所述缆线等可以设计用于低、中和高电压应用。典型的缆线设计示出在USP5,246,783,6,496,629和6,714,707中。
“带”和类似术语是指不定长度的薄的材料条。典型地,材料条的长度是大于它的宽度或厚度的至少十(10)倍。
“至少一部分的纵向取向”和类似术语是指:将具有纵向和横向的热塑性带中的一定百分比(典型地至少30%)的纤维,在该带内进行取向,以使得纤维的长度方向与带的纵向具有更高的对准,相比于它具有的与带的横向的对准而言。
“纵向”和类似术语是指与材料通过挤出机的前移方向平行的方向。挤出材料的纵向和纵轴具有相同的含义。
“横向”和类似术语是指法线方向或垂直于纵向的方向。
纤维
各种纤维可用于本发明的实践中,包括但不限于,聚烯烃,如聚乙烯和聚丙烯纤维、尼龙纤维、聚酯纤维、玻璃纤维、石墨纤维、石英纤维、金属纤维、陶瓷纤维、硼纤维、铝纤维以及这些或其他的纤维中的两种或两种以上的组合。典型的可利用的纤维是纱或粗纱(roving),其是在卷轴上的单丝的束。纤维的旦数(denier)可以根据纤维的组成和纤维束所处的应用来变化,但典型地它在400和5,000特(TEX)之间,更典型地在600和3,000特之间,以及还更加典型地在700和2,500特之间。
代表性的聚烯烃纤维包括来自Honeywell的900聚乙烯纤维、DOW XLAtm聚烯烃纤维和TOHO TENAXG30-700碳纤维。 代表性的玻璃纤维包括Owens Corning的E-玻璃纤维SE 4121(1200或2400特),和John Manville JM 473AT (2400特)、473A (2400和1200特)、PPG 4599 (2400特)。SE 4121是类型为30的单端连续粗纱(Single-End Continuous Roving)系列的一名高级成员。该产品专门设计用于聚丙烯长纤维热塑性塑料的(LFT)应用中。OC SE 4121具有设计成适合于使用Direct-LFT方法的化学性质。
玻璃纤维: 可以使用Manville JM 473AT (1100, 1200或2400特)或来自其他供应商的相似等级的纤维。Manville JM 473AT是一种LFTplus的直接粗纱纤维,和其通过将规定直径的连续玻璃纤维直接卷绕成圆柱形粗纱包来制造。该粗纱的设计用于增强在LFT方法中的聚丙烯聚合物。选择的材料的性能和纤维特征列于表1中。
表1
Manville JM 473AT E-玻璃纤维的所选择的性能
纤维在纤维束中的量,基于该束的重量计,典型地是至少20,更典型至少60,并且还更加典型是至少80重量%(wt%)。纤维在纤维束中的最大量,基于该束的重量计,典型地不超出98,更加典型地不超出95,并且还更加典型地不超出90wt%。
树脂
各种类型的可商购热塑性树脂能够用于制造用来制造本发明的纤维增强带的纤维增强束,包括但不限于:通常已知的和用于形成纤维增强的聚合物塑料的那些树脂。典型的热塑性树脂包括但不限于丙烯酸树脂、丙烯酸酯树脂、环氧树脂、碳酸酯树脂、聚烯烃树脂以及这些和/或其他树脂的两种或两种以上的组合。
在本发明的实践中有用的聚烯烃树脂是热塑性的,并且其包括聚烯烃均聚物和互聚物。聚烯烃均聚物的例子是乙烯和丙烯的均聚物。聚烯烃互聚物的例子是乙烯/α-烯烃互聚物和丙烯/α-烯烃互聚物。α-烯烃优选是C3-20线性、支化的或者环状α-烯烃(对于丙烯/α-烯烃互聚物,乙烯视为α-烯烃)。C3-20的α-烯烃的例子包括丙烯、1-丁烯、4-甲基-1-戊烯、1-已烯、1-辛烯、1-癸烯、1-十二烯、1-十四烯、1-十六烯和1-十八烯。α-烯烃也可以包含环状结构例如环己烷或环戊烷,结果形成的α-烯烃例如3-环己基-1-丙烯(烯丙基环己烷)和乙烯基环己烷。虽然某些环状的烯烃例如降冰片烯和相关烯烃在该术语的传统意义上不是α-烯烃,但是为了本发明的目的,其属于α-烯烃,并且能够用于代替以上描述的一些或所有α-烯烃。同样,就本发明而言,苯乙烯和它的相关烯烃(例如,α-甲基苯乙烯等等)也是α-烯烃。举例性的聚烯烃共聚物包括乙烯/丙烯,乙烯/丁烯,乙烯/1-己烯,乙烯/1-辛烯,乙烯/苯乙烯等等。举例性的三元共聚物包括乙烯/丙烯/1-辛烯,乙烯/丙烯/丁烯,乙烯/丁烯/1-辛烯和乙烯/丁烯/苯乙烯。所述共聚物可以是无规或嵌段的。
聚烯烃树脂也可以包括一种或多种官能团例如不饱和的酯或酸,并且这些聚烯烃是公知的,并且能够通过常规高压技术来制备。该不饱和的酯可以是丙烯酸烷基酯、甲基丙烯酸烷基酯或乙烯基羧酸酯。烷基基团可以有1到8个碳原子,并且优选具有1到4个碳原子。羧酸酯基团可以有2到8个碳原子,并且优选有2到5个碳原子。归因于酯类共聚单体的共聚物的部分,基于共聚物的重量计,可以是在1至50wt%的范围内。丙烯酸酯和甲基丙烯酸酯的例子是丙烯酸乙酯、丙烯酸甲酯、甲基丙烯酸甲酯、丙烯酸叔丁基酯、丙烯酸正丁酯、甲基丙烯酸正丁酯和丙烯酸2-乙基己基酯。乙烯基羧酸酯的例子是乙酸乙烯酯、丙酸乙烯基酯和丁酸乙烯基酯。不饱和酸的例子包括丙烯酸或马来酸。
也可以通过接枝在聚烯烃中加入官能团,其可以用在本领域中公知的方式来完成。在一个实施方案中,接枝可以通过自由基官能化来进行,其通常包括将烯烃聚合物、自由基引发剂(例如过氧化物或类似物)和包含官能团的化合物进行熔融共混。在熔融共混过程中,自由基引发剂与烯烃聚合物起反应(反应活性熔融共混)来形成聚合物自由基。包含官能团的化合物键接到聚合物自由基的主链上以形成官能化的聚合物。包含官能团的示例性化合物包括但不限于,烷氧基硅烷如,乙烯基三甲氧基硅烷,乙烯基三乙氧基硅烷以及乙烯基羧酸和酸酐如,马来酸酐。
在本发明中有用的聚烯烃的更具体的例子包括:极低密度聚乙烯(VLDPE)(例如由The Dow Chemical Company制造的乙烯/1-己烯的聚乙烯),均匀支化的、线性乙烯/α-烯烃共聚物(例如MitsuiPetrochemicals Company Limited的以及Exxon ChemicalCompany的均匀支化的、基本上线性的乙烯/α-烯烃聚合物(例如可从The Dow Chemical Company获得的和聚乙烯),以及例如在USP7,355,089中描述的那些烯烃嵌段共聚物(例如可从TheDow Chemical Company获得的更加优选的聚烯烃共聚物是均匀支化的线性和基本上线性的乙烯共聚物。基本上线性的乙烯共聚物是特别优选的,并且在USP5,272,236、5,278,272和5,986,028中有更加全面的描述。
在本发明的实践中有用的聚烯烃也包括丙烯、丁烯和其他基于烯烃的共聚物,如包括大多数的获自丙烯的单元和少数的获自另一α-烯烃的单元(包括乙烯)的共聚物。在本发明的实践中有用的示例性的丙烯聚合物包括可从The Dow Chemical Company获得的聚合物,以及可从ExxonMobil Chemical Company获得的聚合物。
任何上述烯烃弹性体的共混物也能够用于本发明中,而且烯烃弹性体能够用一种或多种其他聚合物进行混合或稀释到某种程度上,在优选的方式中,本发明的烯烃弹性体包括至少约50、优选至少约75、并且更优选至少约80wt%的混合物中的热塑性聚合物组分并且保留了它们的柔顺性。在一种较不优选的方式下并根据可能寻找的其他性能,该烯烃弹性体含量可以是低于50%的热塑性聚合物组分。在一个实施方案中,浸渍树脂是404或H734-52RNA性能聚合物(聚丙烯),两者都可从The DowChemical Company获得,或者是可从其他供应商得到的相似等级的聚丙烯树脂。
用于本发明的实践的树脂可以包括一种或多种添加剂来促进它们的加工和/或应用。典型的添加剂包括相容剂/偶联剂,例如DuPont的P353或者Arkema的CA100或者Chemtura的3200;流动促进剂,例如405或805或GA1950;颜料,例如Hubron Black Masterbatch PPB或4045;以及抗氧化剂,例如1010、168和/或PS802(如由Ciba Specialty Chemicals所供应的)。这些和其他添加剂按常规方式和常规量来使用。
在纤维束中的树脂的量(包括任何添加剂和/或填料),基于该束的重量计,典型是至少2,更加典型是至少5,并且还更加典型是至少10重量%(wt%)。树脂在纤维束中的最大量,基于该束的重量计,典型地不超出80,更加典型不超出60,并且还更加典型不超出40wt%。
制造纤维束的方法
纤维束即LFT材料能够由所有方便的方法来制造,包括但不限于,将纤维(包括但不限于玻璃纤维)通过拉挤方法来用如上所述热塑性树脂将纤维进行浸渍。具体的拉挤处理对于本领域技术人员来说是公知的,并且在USP7,507,361中有概括描述。然后将该材料切成粒料或条带。通常这些LFT条带含有长度范围在从3到15mm、更加典型的长度范围在从5到12mm的纤维,其中重量比是从30%到95%,更加典型地是从50%到85%。
制造带的方法
本发明的带使用挤压方法来制造。典型地选择双螺杆挤出机,但是也可以使用单螺杆挤出机。螺杆典型地以10-200,更典型地以15到150,并且还更加典型地以20到100的每分钟转数(rpm)进行旋转。因为纤维已经混合成条带/粒料,所以不需要进行混合。挤出机螺杆以大于2.5:1的压缩比来设定,无需使用混合元件。对于在挤出机中的不同区域,将室温度(chambertemperature)设定在180-220°C,以及模头温度(如180-230°C)在所有区域中典型地是最高的。挤出速度典型地是0.2到5m/分钟,其取决于最终产物的纤维填充量。该带可以在它离开挤出机的时候通过使用缠绕轴(winding spool)或相似的设备来进行收集。卷绕单元能够按照比起挤出机运行的速度来说更快的速度进行操作,如10、15、25%或者更加快速的速度,来将材料轻微地进行拉制,并因此使纤维获得或提高纵向的取向。该带的维度典型地为:宽度以mm计在1到50范围内,更加典型2到25,并且还更加典型为5到12,厚度以mm计在0.1到2,更加典型0.2到1.5,并且还更加典型为0.5到1.2,以及长度不定。
具有带加强件的线材或缆线
为了用作用于线材或缆线特别是用于光纤缆线应用的加强件,该带典型地具有的模量为至少12千克每平方英寸(kg/in2),或5千兆帕(GPa),不过对于这一带的构型而言,6到10Gpa的值是更加典型的。高模量是纤维填充量和在纤维和树脂基体之间的粘合力的函数。而且,典型地至少30,更加典型地至少40,并且还更加典型地至少50的百分数的在带中的纤维填充总量,在纵向上进行取向(纵向地)。这一取向是通过模头的挤出和/或在挤出时的拉制(如来自卷绕单元)的结果。
该带可以以所有合适的方式来合并到线材或缆线结构中,包括但不限于,在该结构之内纵向和/或横向环绕一种或多种线材或纤维。可选择地,可以将该带合并到线材或缆线结构的另一个组件如绝缘护套或保护套中。该带也可以用作该缆线的独立的加强组件。
本发明通过以下实施例来进行更加充分地说明。除非另有说明,所有的份数和百分数都以重量计。
具体实施方案
材料
纤维是Johns Manville JM473AT(2400特)、473A玻璃纤维。纤维的玻璃类型是E,具有的LOI含量(%)为0.70,最大湿气含量为0.15%,线性密度(出产量/特)207/2400,以及长丝直径为16微米。纤维占复合材料的60wt%。
树脂是DOW H734-52RNA,可从The Dow Chemical Company获得的聚丙烯以及具有的性能报告在表2中。
表2
DOW H734-52RNA的所选择的性能
树脂占复合材料的32.4wt%。
抗氧剂是IRGANOX1010(四-(亚甲基-(3,5-二-(叔)-丁基-4-氢化肉桂酸酯))甲烷);IRGAFOS168(三(2,4-二-叔-丁基苯基)亚磷酸酯);和IRGANOXPS802(二-十八烷基-3,3’-硫代二丙酸酯),全部可从Ciba得到。
LFT方法
LFT条带和粒料由德国的FACT通过使用常规拉挤方法来生产,所述方法采用20马力和4个加热区的挤出机。该挤出机配置有3:1压缩比的单螺杆,其具有的长度/直径比率为25。没有使用混合元件。挤出机的温度分布是:区1–185°C,区2–190°C,区3–210°C,和模头温度为220°C。该挤出机运行在65rpm)。
挤出方法
将Brabender PL2000-3型的双螺杆挤出机用于挤出。图1显示了在挤出机中的不同区所使用的温度和压力设定。温度分布是“反向的”,因为最高的温度是在第一个区域中并且最低的温度在最后的区域中。这是为了使得树脂基体能够迅速地熔化而且降低了其所承受的应力的值。粒料/条带通过主料斗来进给,并且将螺杆速度设定在30rpm。使用一英寸宽的带模具来挤出复合材料带,并且该带在挤出加工过程中在它卷绕到卷轴上之前,不是拉伸的。
图2显示了在挤出试验过程中所制造的样品。肉眼观察显露了两个样品纤维能够保持它们在复合材料中的长度,并且它们在纵向上轻微地取向。对于这一应用,在纵向上的轻微的纤维取向是优选的,以在该特殊方向上实现更高的拉伸强度。然而,取决于该带在缆线中如何来施加,有时完全随机取向实际上会是优选的。在如下实施例中,所获得的纤维取向的水平是足够的。
测试和结果
为了比较的目的,也使用Brabender间歇式混合机来将原始的LFT粒料进行再熔化和混合。然后在热压机中在190°C的台板温度下压缩模塑试验片(plaque)(0.03"厚)。然后制备拉伸样品。
拉伸测试方法遵照ASTM D638-03的线材和缆线的试验过程:StandardTest Method for Tensile Properties of Plastics(细节参见2008Annual Book ofASTM Standards,第8部分,卷08.01,ASTM International,WestConshohocken,PA,2008),在挤出样品和模塑样品二者上进行。
图3显示了LFT挤出样品和模塑样品与单独的聚丙烯树脂的模量的比较。Tukey-Kramer分析显示,LFT挤出和模塑的模量,与单独的聚丙烯的模量比较,统计意义上是更高的(平均值超过四倍高)。在模量上的提高暗示了:通过将长的玻璃纤维添加在复合材料中实现了显著的增强作用。图4显示了每一个表明了纤维取向的复合材料样品的峰值应力的比较。Tukey-Kramer分析显示,挤出样品相比于模塑样品在统计上显示出更高的峰值应力,这暗示了在挤出样品上具有更好的纤维取向。
结论
与单独的聚丙烯树脂比较,测试结果显示,挤出的LFT带的模量的显著改善。LFT复合材料也显示出高的峰值应力。高模量和高应力的组合与失效的特征(failure feature)相比表明LFT复合材料带作为在光纤的缆线应用中的加强件是有用的。
表2报告了复合材料带的载荷承载能力,其与如今在5mm光纤缆线中所使用的常规的1.5mm直径FRP进行比较。假设缆线在1%应变处进行牵拉(这典型地是应变没有使光纤开裂的上限);表2显示,环绕在5mm直径的缆线周围的0.55mm厚的复合材料带基本上具有与1.5mm直径FRP相同量的载荷承载能力(甚至模量是更低的)。该载荷承载能力使得缆线能够承受在安装过程中所经历的加工应力。
表3
常规FRP和本发明的复合材料带的载荷承载能力的比较
虽然本发明已经通过优选的实施方案的在先的描述来用某些细节进行了说明,但是该细节是用于例证的主要目的。本领域技术人员能够做出许多变形和改动,而不偏离如以下权利要求所说明的本发明的精神和范围。
Claims (10)
1.具有纵轴的纤维增强带,该带包括:至少30wt%的纤维和至少2wt%的热塑性树脂,条件是至少30%的在该带中的纤维至少部份地沿带的纵轴取向。
2.权利要求1的所述的带,其中所述纤维是旦数为400至5,000特的玻璃纤维。
3.权利要求2的所述的带,其中所述树脂是聚烯烃树脂。
4.权利要求3的所述的带,其中所述树脂是聚丙烯树脂。
5.权利要求4的所述的带,其中所述纤维具有4到15mm的长度。
6.制备权利要求1的所述的带的方法,该方法包括下列步骤:(A)制备包括至少30%的纤维和至少2wt%的热塑性树脂的长纤维热塑性粒料或条带,(B)从所述粒料或条带形成可挤出的物料和(C)挤出该物料从而形成具有纵向和横向取向的带,条件是至少30%的所述纤维在纵向上取向。
7.权利要求6的方法,其中该挤出用装备有运行在180-230°C的温度的模头的挤出机来进行。
8.权利要求7的方法,其中将所挤出的带进行拉制。
9.线材或缆线结构,其包括作为加强件的权利要求1的所述的带。
10.光纤缆线的形式的权利要求9的线材或缆线。
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- 2011-05-24 WO PCT/US2011/037643 patent/WO2011156128A2/en active Application Filing
- 2011-05-24 JP JP2013514197A patent/JP2013528135A/ja not_active Withdrawn
- 2011-05-24 MX MX2012014295A patent/MX2012014295A/es not_active Application Discontinuation
- 2011-05-24 BR BR112012030273A patent/BR112012030273A2/pt not_active IP Right Cessation
- 2011-05-24 US US13/698,880 patent/US20130072626A1/en not_active Abandoned
- 2011-05-24 EP EP11726988.6A patent/EP2601035A2/en not_active Withdrawn
- 2011-05-24 CN CN2011800390134A patent/CN103068553A/zh active Pending
- 2011-05-24 KR KR1020127032101A patent/KR20130119323A/ko not_active Application Discontinuation
- 2011-05-31 TW TW100119037A patent/TW201144049A/zh unknown
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US7402268B2 (en) * | 2000-04-25 | 2008-07-22 | Ocv Intellectual Capital, Llc | Method for making a composite extruded profile formed with thermoplastic organic material reinforced with reinforcing fibres |
CN1688428A (zh) * | 2002-10-15 | 2005-10-26 | 陶氏环球技术公司 | 含有纤维增强的热塑性聚合物组合物的制品 |
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CN108430748A (zh) * | 2016-02-05 | 2018-08-21 | 雷诺立特戈尔股份公司 | 复合材料片材及用于制造它的方法 |
CN108822391A (zh) * | 2018-07-06 | 2018-11-16 | 浙江胜钢新材料有限公司 | 一种管道缠绕用热塑性连续纤维增强绳及其加工方法 |
Also Published As
Publication number | Publication date |
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CA2799616A1 (en) | 2011-12-15 |
TW201144049A (en) | 2011-12-16 |
JP2013528135A (ja) | 2013-07-08 |
KR20130119323A (ko) | 2013-10-31 |
WO2011156128A2 (en) | 2011-12-15 |
BR112012030273A2 (pt) | 2016-08-09 |
MX2012014295A (es) | 2013-02-12 |
WO2011156128A3 (en) | 2012-02-02 |
EP2601035A2 (en) | 2013-06-12 |
US20130072626A1 (en) | 2013-03-21 |
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