CN116134096A - 凝胶组合物 - Google Patents
凝胶组合物 Download PDFInfo
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- CN116134096A CN116134096A CN202180055354.4A CN202180055354A CN116134096A CN 116134096 A CN116134096 A CN 116134096A CN 202180055354 A CN202180055354 A CN 202180055354A CN 116134096 A CN116134096 A CN 116134096A
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- styrene
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Abstract
本发明涉及用于填充电缆(例如通信电缆)的凝胶组合物,具体是包含微球的凝胶组合物,还涉及包括所述凝胶的电缆,以及制备此类凝胶的方法。
Description
技术领域
本发明涉及用于填充电缆(例如通信电缆)的凝胶组合物,具体是包含微球的凝胶组合物,以及制备此类凝胶的方法。
背景技术
通信电缆一般包括被保护护套包围的信号传导芯。例如,该芯可以传导光信号或电信号。在许多电缆中,导体与护套之间的空间包含填料,填料的作用是保护和缓冲该芯免受外力,该外力可能通过例如弯曲或卷绕产生,特别是在光纤电缆的情况下。填料的另一个作用是防止水进入,这在芯包括金属(例如铜)的情况下是特别受到关注的。为了满足这些要求,填料必须展现出许多特征。填料必须具有足够的粘度,以便允许芯在例如弯曲、卷绕或铺设过程中发生横向运动。然而,粘度不得太低,以免在电缆的竖直铺设过程中造成填料滴落损失。此外,必须在-40至+80℃的温度范围内维持这种特性的平衡。填料必须被配制成与电缆级聚合物化学相容,电缆级聚合物不仅包括电缆护套而且一般还包括存在于光纤上的涂层。填料还应显示出高度的弹性,以便吸收电缆护套在其工作寿命期间可能经受的冲击力。通过制造此类电缆可能达到相对高的环境温度,导致填料热膨胀,然后导致冷却时形成孔和腔。此类孔和腔有可能成为水通道,该水通道在光纤电缆中可能导致光波导的衰减。因此,电缆填料应理想地显示出低热导率。对于电气应用或传输电信号的芯,如果填料具有低电容率从而使传导芯绝缘,则是有利的。这具有使填料疏水从而保护芯避免遭受进水的额外益处。填料的抗滴落性可以通过降低其比重来改进。最后,为了便于处理,如果填料摸起来是半干的而不是粘性的,则是优选的。
WO2001/74480A1讨论了适合用作电缆填料的组合物,该组合物包括微球在凝胶中的分散体,该凝胶包括油性基质和有机聚合物胶凝剂。油可以是环烷或石蜡加工油、矿物油、合成产品(例如聚丁烷或硅油)。
发明内容
本发明提供了一种适合用作电缆填料的组合物,该组合物包括可压缩中空微球在凝胶中的分散体,该凝胶包括:包括合成油的基础油;和包括苯乙烯嵌段共聚物的有机聚合物胶凝剂;其中该合成油由供料化学品(feed chemical)产生,该供料化学品是天然气或低分子量线性α-烯烃。
本发明进一步提供了一种电缆,例如通信电缆,该电缆包含如上文定义的组合物作为电缆填料。
本发明进一步提供了一种用于制造电缆的方法,该电缆例如是通信电缆,更具体地是光纤电缆,该电缆包含如上文定义的组合物作为填料。
附图说明
图1示出了光纤电缆的横截面视图。
具体实施方式
通信电缆常规地使用聚乙烯作为外绝缘物来制造。然而,聚乙烯不太适合用于光纤电缆,反而聚丙烯由于其改进的特性(例如更高的弯曲半径)而被优选。已经发现,聚丙烯的使用与在用于电缆的填料组合物中常规使用的基础油(例如是环烷或石蜡加工油、矿物油或硅油的油)不相容。当根据下文描述的程序测量时,这些常规基础油一般具有在15%至20%的范围内或以上的增重相容性指标(weight gain compatibility indication)。常规石化衍生油通常具有约20%或以上的增重相容性指标。
传统上,在通信电缆工业中,在凝胶中使用的标准基础油是原油提取的直接级分的油。如本文所用的术语“合成油”被定义为由供料化学品(feed chemical)产生的油,该供料化学品是天然气或低分子量线性α-烯烃。优选地,本发明中使用的“合成油”选自(i)IV类基础油,也称为聚α烯烃(polyalphaolefin,PAO)合成基础油;和(ii)天然气合成油(gas-to-liquid oil);或其混合物。IV类基础油是在化工厂使用乙烯气体合成的纯的化学品。天然气合成油是由任何来源(例如天然气、沼气或其他烃气来源)的合成气转化产生的合成油。相比之下,作为原油提取的直接级分的传统油是通过原油的蒸馏和精炼产生的。更优选地,IV类基础油(聚α烯烃)选自氢化1-己烯均聚物、氢化1-辛烯均聚物,以及其混合物。
作为第一实施方案,实施方案1,本发明提供了一种适合用作电缆填料的组合物,该组合物包括可压缩中空微球在凝胶中的分散体,该凝胶包括:包括合成油或由合成油组成的基础油;和包括苯乙烯嵌段共聚物的有机聚合物胶凝剂;其中合成油由供料化学品产生,供料化学品是天然气或低分子量线性α-烯烃。
作为第二实施方案,实施方案2,本发明提供了如实施例1中定义的组合物,其中合成油选自(i)IV类基础油,也称为聚α烯烃(PAO)合成基础油;和(ii)天然气合成油;或其混合物。
作为第三实施方案,实施方案3,本发明提供了如实施方案1或2中定义的组合物,其中基础油包括全合成油或由全合成油组成。
作为又一个实施方案,实施方案4,本发明提供了如实施方案1或2中定义的组合物,其中基础油包括共混合成油或由共混合成油组成。
作为又一个实施方案,实施方案5,本发明提供了如任何前述实施方案中定义的组合物,其中基础油不包括氢化1-癸烯均聚物。
基础油优选包含最少50%的合成油;更优选最少55%的合成油;更优选最少60%的合成油;更优选最少65%的合成油;更优选最少70%的合成油。
作为又一个实施方案,实施方案6,本发明提供了如任何前述实施方案中定义的组合物,其中该组合物包括50至99wt%的基础油。
作为又一个实施方案,实施方案7,本发明提供了如任何前述实施方案中定义的组合物,其中该组合物包括80至99wt%的基础油。
本发明的组合物包括可压缩中空微球,每个可压缩中空微球包括包封发泡剂的聚合物壳。聚合物壳通常由共聚物形成,该共聚物例如是偏二氯乙烯和丙烯腈的共聚物或丙烯腈和甲基丙烯腈的共聚物。例如,发泡剂可以是异丁烷或异戊烷。另外,微球可以是膨胀的或未膨胀的。未膨胀微球的聚合物壳在加热时软化,因此允许蒸发的发泡剂使微球的体积膨胀。此类中空微球无论是膨胀的还是最初未膨胀的,都显示出高度的弹性并且还具有低比重。在本发明公开的凝胶中使用此类微球是有利的,因为它们降低了凝胶的总比重,从而减少或消除了电缆竖直铺设过程中的滴出。微球的中空性质意味着固体材料相对于体积的比例非常低。因此,将它们添加到本发明的凝胶中导致整体热导率降低,并且降低了在电缆制造过程中达到的高温下凝胶的任何组分分解或产生空隙的可能性。中空微球相对于它们的实心对应物的优异弹性特性例如为光波导在输送、卷绕或铺设过程中赋予改进的保护。另外,由于电缆填充物内存在孔或腔而导致的光波导衰减问题也减少了,因为在电缆制造过程中由于加热而导致的填料本体体积的任何增加都与中空微球体积的相反减少相匹配。由于此类中空微球的可压缩性质,它们的直径一般大于其实心对应物的直径。在光纤电缆应用中,可以使用在光波导直径范围内的直径。对于膨胀的中空微球,直径一般在1至200μm的范围内,更通常地小于100μm,一般小于75μm,例如15至55μm。对于未膨胀的中空微球,膨胀前的平均直径一般在高至50μm的范围内,更通常地小于30μm,例如在10至20μm的范围内。
对于实心和中空对应物,微球的体积比例通常不同。固体微球一般在按凝胶体积计1%至50%(v/v)的体积范围内,更优选在5%至50%v/v范围内使用。在使用中空微球的情况下,它们一般在1%至95%v/v,更优选5%至95%v/v,具体是50%至95%v/v的范围内存在,前述数值是指膨胀后的体积。
作为又一个实施方案,实施方案8,本发明提供了如任何前述实施例中定义的组合物,其中可压缩中空微球是膨胀的。
作为又一个实施方案,实施方案9,本发明提供了如实施方案8中定义的组合物,其中膨胀的可压缩中空微球具有在15至55μm的范围内的平均直径。
作为又一个实施方案,实施方案10,本发明提供了如实施方案8中定义的组合物,其中膨胀的可压缩中空微球具有在20至40μm的范围内的平均直径。
作为又一个实施方案,实施方案11,本发明提供了如实施方案8中定义的组合物,其中膨胀的可压缩中空微球具有在25至35μm的范围内的平均直径。
作为又一个实施方案,实施方案12,本发明提供了如任何前述实施方案中定义的组合物,其中每个微球具有由共聚物形成的壳,该共聚物例如是丙烯腈和甲基丙烯腈的共聚物(CAS号为38742-70-0)。
作为又一个实施方案,实施方案13,本发明提供了如任何前述实施方案中定义的组合物,其中该组合物除了有机聚合物胶凝剂之外基本上不包含触变剂。
术语“触变剂”是指粘度随时间变化、随剪切力下降的材料。
作为又一个实施方案,实施方案14,本发明提供了如任何前述实施方案中定义的组合物,其中有机聚合物胶凝剂包括热塑性弹性体。
有机聚合物胶凝剂包括苯乙烯嵌段共聚物,该苯乙烯嵌段共聚物可以具有二嵌段、三嵌段或多臂分子的构型。
作为又一个实施方案,实施方案15,本发明提供了如任何前述实施方案中定义的组合物,其中有机聚合物胶凝剂包括苯乙烯嵌段共聚物,该苯乙烯嵌段共聚物选自苯乙烯-乙烯/丁烯苯乙烯三嵌段共聚物(SEBS)、苯乙烯-乙烯/丙烯二嵌段共聚物(SEP)、苯乙烯-丁二烯-苯乙烯三嵌段共聚物(SBS)和苯乙烯-异戊二烯-苯乙烯三嵌段共聚物(SIS),或其混合物。
作为又一个实施方案,实施方案16,本发明提供了如任何前述实施方案中定义的组合物,其中有机聚合物胶凝剂包括苯乙烯-乙烯/丙烯二嵌段共聚物(SEP)。
合适的可商购苯乙烯嵌段共聚物包括可在商标KratonTM或SeptonTM下获得的共聚物。
作为又一个实施方案,实施方案17,本发明提供了如任何前述实施方案中定义的组合物,该组合物包括1至10wt%的有机聚合物胶凝剂。
作为又一个实施方案,实施方案18,本发明提供了如任何前述实施方案中定义的组合物,该组合物包括2至9wt%的有机聚合物胶凝剂。
作为又一个实施方案,实施方案19,本发明提供了如任何前述实施方案中定义的组合物,该组合物包括3至8wt%的有机聚合物胶凝剂。
作为又一个实施方案,实施方案20,本发明提供了如任何前述实施方案中定义的组合物,其中该组合物额外地包括抗氧化剂。
作为又一个实施方案,实施方案21,本发明提供了如实施方案20中定义的组合物,其中抗氧化剂选自季戊四醇四(β-月桂基硫代丙酸酯)(CAS号:29598-76-3,NauguardTM412S)、酚类抗氧化剂(Brad-ChemTM 339)、四亚甲基(3,5-二叔丁基-4-羟基氢化肉桂酸酯)甲烷(Brad-ChemTM 391)、硫代二亚乙基双[3-(3,5-二叔丁基-4-羟基苯基)丙酸酯](Brad-ChemTM395)、辛基化苯基-α-萘胺(IrganoxTM L 06,BASF)、辛基化/丁基化二苯胺(IrganoxTML 57,BASF)、包含硫醚基团的高分子量酚类抗氧化剂(IrganoxTM L115)、高分子量酚类抗氧化剂(IrganoxTM L 135)、苯胺、N-苯基-(CAS号:68411-46-1,IrganoxTM L 55),以及胺类和高分子量酚类抗氧化剂的混合物(IrganoxTM L150),以及其组合。
作为又一个实施方案,实施方案22,本发明提供了如实施方案20中定义的组合物,其中抗氧化剂选自季戊四醇四(β-月桂基硫代丙酸酯)(CAS号:29598-76-3,NauguardTM412S)和四亚甲基(3,5-二叔丁基-4-羟基氢化肉桂酸酯)甲烷(Brad-ChemTM 391),或其组合。
作为又一个实施方案,实施方案23,本发明提供了如任何前述实施方案中定义的组合物,其中该组合物包括0.1至1wt%的抗氧化剂。
作为又一个实施方案,实施方案24,本发明提供了如任何前述实施方案中定义的组合物,其中该组合物额外地包括降凝剂。
合适的可商购降凝剂包括ViscoplexTM 1-180(Evonik)和IrgaofloTM 649P(BASF),一种甲基丙烯酸烷基酯共聚物在矿物油中的分散体。
作为又一个实施方案,实施方案25,本发明提供了如任何前述实施方案中定义的组合物,其中该组合物额外地包括润湿剂,例如聚丙二醇(PPG);和/或二氧化硅。
作为又一个实施方案,实施方案26,本发明提供了如任何前述实施方案中定义的组合物作为电缆填料的用途。
作为又一个实施方案,实施方案27,本发明提供了一种电缆,例如光纤电缆,该电缆包含如实施方案1至25中任一项定义的组合物。
作为又一个实施方案,实施方案28,本发明提供了一种电缆,该电缆包括被护套包围的传导芯、如实施方案1至25中任一项定义的组合物,该组合物布置在传导芯与护套之间,其中护套包括聚丙烯。
例如,传导芯可以是电导体或光导体。例如,电导体可以是用于传导电信号(例如电话信号)的导体。
作为又一个实施方案,实施方案29,本发明提供了一种用于制造包括传导芯和护套的电缆的方法,该方法包括以下步骤:将电缆护套挤出到传导芯上,以及在该挤出步骤期间将如实施方案1至25中任一项定义的组合物插置在传导芯与护套之间。
本发明的组合物可以通过包括以下步骤的方法制备:
(a)将合成油加热至在110℃至120℃范围内的温度;
(b)将聚合物胶凝剂添加到油中并且共混形成混合物;
(c)将混合物冷却至低于90℃的温度;
(d)添加并且共混微球;任选地
(e)将混合物维持在真空下以除去夹带的气体。
优选地,所述方法包括以下步骤:
(i)在加热-共混罐中共混至少一种合成油;
(ii)在搅拌的加热-共混罐中将共混油加热至110℃-120℃;
(iii)在将油转移到共混-冷却罐后,在高剪切下将聚合物胶凝剂添加到油中并且共混不超过一小时,使共混物的温度升高至超过120℃-130℃;
(iv)将共混物冷却至90℃并且转移到搅拌主反应器中;
(v)添加并且共混微球,在真空或泵送下将微球引入到反应器中持续至少两分钟;
(vii)将真空再维持至少10分钟,以便在释放成品凝胶之前除去空气气泡。
实施例
图1示出了光学电缆21,该光学电缆21包括封装在包层22中的三个光纤缓冲管23。光纤缓冲管23本身由提供有保护涂层26和保护护套25的光纤24组成。本发明的填料组合物27布置在经涂覆的光纤与保护护套之间。另外,填料组合物27填充了各个缓冲管之间以及缓冲管与电缆包层的内表面之间形成的间隙。
适合用于光纤电缆(例如图1所展示的电缆)的凝胶的具体实例如下:
实例1
制备具有以下组成的凝胶填料:
材料 | 功能 | %(重量) |
<![CDATA[DaelimSynol<sup>TM</sup> Alpha 10]]> | 基础油 | 88.7 |
<![CDATA[Kraton<sup>TM</sup> 1701]]> | 有机聚合物胶凝剂 | 5.8 |
<![CDATA[Irganox<sup>TM</sup> L115]]> | 抗氧化剂 | 0.3 |
<![CDATA[Expancel<sup>TM</sup>微球920DET 40d25]]> | 微球 | 3.2 |
<![CDATA[Cab-o-sil<sup>TM</sup>二氧化硅]]> | 二氧化硅 | 1.0 |
PPG | 润湿剂 | 0.5 |
<![CDATA[Viscoplex<sup>TM</sup> 1-180]]> | 降凝剂 | 0.5 |
DaelimSynolTM Alpha 10(Daelim)是氢化1-辛烯均聚物的全合成油(IV类基础油),其CAS号为70693-43-5;
KratonTM 1701:苯乙烯嵌段共聚物;
IrganoxTM L115:包含硫醚基团的高分子量酚类抗氧化剂;
PPG:聚丙二醇,润湿剂;
ViscoplexTM 1-180:聚合物降凝剂。
通过以下方式制备凝胶填料:称量除聚合物、二氧化硅和微球之外的所有材料,并且将其在120℃下一起加热,其中热板设置为250℃。添加聚合物,并且将混合物以半速混合2小时,同时将温度维持在120℃,然后放置过夜。添加微球,然后手动缓慢添加二氧化硅,并且以高速混合5分钟直至光滑。将混合物脱气。
通过类似方法制备以下实例。
实例2
材料 | 功能 | %(重量) |
<![CDATA[DaelimSynol<sup>TM</sup> Alpha 10]]> | 合成油 | 62.1 |
<![CDATA[Petro Canada<sup>TM</sup> 1810]]> | 常规油 | 26.6 |
<![CDATA[Kraton<sup>Tm</sup> 1701]]> | 有机聚合物胶凝剂 | 5.8 |
<![CDATA[Irganox<sup>Tm</sup> L115]]> | 抗氧化剂 | 0.35 |
<![CDATA[Expancel<sup>Tm</sup>微球920DET 40d25]]> | 微球 | 3.2 |
<![CDATA[Cab-o-sil<sup>TM</sup>二氧化硅]]> | 二氧化硅 | 1.0 |
PPG | 润湿剂 | 0.5 |
<![CDATA[Viscoplex<sup>TM</sup> 1-180]]> | 降凝剂 | 0.5 |
实例3
材料 | 功能 | %(重量) |
<![CDATA[Risella<sup>TM</sup> X430]]> | 合成油 | 88.20 |
<![CDATA[Kraton<sup>TM</sup> 1701]]> | 有机聚合物胶凝剂 | 7.95 |
<![CDATA[Irganox<sup>TM</sup> L115]]> | 抗氧化剂 | 0.35 |
<![CDATA[Viscoplex<sup>TM</sup> 1-180]]> | 降凝剂 | 0.5 |
<![CDATA[Expancel<sup>TM</sup>微球920DET 40d25]]> | 微球 | 3 |
RisellaTM X 430(Shell)是一种合成的天然气合成油,其CAS号为848301-69-9。
实例A
原料/配制品 | 功能 | %(重量) |
PAO 6 | 合成油 | 88.35 |
<![CDATA[Kraton<sup>TM</sup> 1701]]> | 有机聚合物胶凝剂 | 8.00 |
<![CDATA[Brad-Chem<sup>TM</sup> 395/Irganox<sup>TM</sup> L115]]> | 抗氧化剂 | 0.15 |
<![CDATA[Expancel<sup>TM</sup> 092DET 40]]> | 微球 | 3.00 |
<![CDATA[降凝剂(例如Irgaoflo<sup>TM</sup> 649P)]]> | 降凝剂 | 0.50 |
Brad-ChemTM 395:硫代二亚乙基双[3-(3,5-二叔丁基-4-羟基苯基)丙酸酯];
PAO 6:氢化1-癸烯均聚物,其CAS号为68037-01-4,可从Petro-CanadaTM或TulstarTM商购的聚α烯烃油。
发明人惊讶地发现,包括100%合成油(如上文所定义)或者包括合成油和传统油的共混物的基础油具有低的增重相容性指标,优选为15%或更低;更优选为10%或更低。
在持续延长的时间段内在高温下进行相容性测试,其本质上是加速老化测试。与所选时间段和温度等效的储存时间段可以使用以下等式计算:
使用上述等式,可以计算得到:如果假设环境温度为21℃,则在80℃下28天的测试时间段相当于在环境温度下储存17.08年。
根据以下标准测试方法测试本发明的包括基础油的组合物的增重相容性:
1.准备了装有光纤试件(长度大约9cm)的培养皿。
2.将包括基础油的凝胶样品添加到培养皿中,浸没光纤试件。一个培养皿没有添加凝胶作为对照。
3.将对照培养皿和样品培养皿均放置在80℃的烘箱中,放置28天。
4.在测试时间段结束时,将培养皿从烘箱中取出并冷却。
5.取出纤维样品,擦拭并检查有色涂层的稳定性。
当测试与BorealisTM聚丙烯(PP1121-01)测试试件的相容性时,获得以下结果。
表1详述了测试原料油获得的结果。将根据本发明的两种合成油(RisellaTM X430和DaelimSynolTM 40)与传统的石化油共混储备物(Petro CanadaTM Purity 1810PAO 6)进行比较。
表2详述了测试原料油和包括油的凝胶组合物两者获得的结果。测试了根据本发明的凝胶组合物,该组合物包括DaelimSynolTM Alpha 10(实例1和2)。
表3详述了测试凝胶组合物获得的结果。测试了根据本发明的凝胶组合物,该组合物包括RisellaTM X430(实例3)或包括PAO 6(实例A)。
表1
*对照样品是指空白BorealisTM聚丙烯(PP1121-01)测试试样。
RisellaTMX430(Shell)是一种合成的天然气合成油,其CAS号为848301-69-9。
DaelimSynolTM 40(Daelim)是合成的IV类基础油,其为一种乙烯-丙烯共聚物,其CAS号为9010-79-1。
Petro CanadaTM Purity 1810PAO 6(Petro-Canada)是传统石化油与氢化1-癸烯均聚物的50-50共混储备物。
从表1中可以清楚地看出,使用100%合成油RisellaTM X430和DaelimSynolTM 40,在80℃下28天后,显示其增重相容性指标分别降低至12.3%和5.3%,相比之下对于PetroCanadaTM Purity 1810PAO 6(传统石化油与氢化1-癸烯均聚物的50-50共混储备物)为20.6%。
表2
*对照样品是指空白BorealisTM聚丙烯(PP1121-01)测试试样。
PC1810:传统石化油(Petro CanadaTM)。
%平均(A+B)(%Ave.(A+B))是增重相容性指标。如从表2可以看出,在80℃下28天后,发现100%合成油DaelimSynolTM Alpha10具有平均6.6%的增重相容性指标,而由70%Alpha 10和30%非合成PC1810的混合物组成的共混油具有12.0的增重相容性指标。当配制成根据本发明的凝胶组合物时,发现实例1(包括100% Alpha 10(IV类油)的凝胶组合物)的增重相容性指标为6.6,而实例2(包括70% Alpha 10和30% PC1810的凝胶组合物)的增重相容性指标为11.6。当与100%石化油相比时,对于两种组合物均观察到改进的增重相容性。
表3
从表3中可以看出,在80℃下28天后,实例3(包括全合成的天然气合成油的本发明凝胶组合物)显示出具有平均12.5%的增重相容性指标,相比之下对于包括传统石化油与PAO6的50:50共混物的组合物(实例A)为21.1。
Claims (16)
1.一种适合用作电缆填料的组合物,所述组合物包括可压缩中空微球在凝胶中的分散体,所述凝胶包括:包括合成油或由合成油组成的基础油;和包括苯乙烯嵌段共聚物的有机聚合物胶凝剂;其中所述合成油由一定量的供料化学品产生,所述供料化学品是天然气或低分子量线性α-烯烃。
2.根据权利要求1所述的组合物,其中所述合成油选自(i)IV类基础油,也称为聚α烯烃(PAO)合成基础油;和(ii)天然气合成油;或其混合物。
3.根据权利要求1或2所述的组合物,其中所述基础油包括全合成油或由全合成油组成。
4.根据前述权利要求中任一项所述的组合物,其中所述基础油包括共混合成油或由共混合成油组成。
5.根据前述权利要求中任一项所述的组合物,其中所述基础油不包括氢化1-癸烯均聚物。
6.根据前述权利要求中任一项所述的组合物,其中所述组合物包括50至99wt%的基础油。
7.根据前述权利要求中任一项所述的组合物,其中所述可压缩中空微球是膨胀的。
8.根据权利要求7所述的组合物,其中膨胀的可压缩中空微球具有在15至55μm的范围内的平均直径。
9.根据前述权利要求中任一项所述的组合物,其中每个所述微球具有由共聚物形成的壳,所述共聚物例如是丙烯腈和甲基丙烯腈的共聚物(CAS号为38742-70-0)。
10.根据前述权利要求中任一项所述的组合物,其中所述组合物除了所述有机聚合物胶凝剂之外基本上不包含触变剂。
11.根据前述权利要求中任一项所述的组合物,其中所述有机聚合物胶凝剂包括苯乙烯嵌段共聚物,所述苯乙烯嵌段共聚物选自苯乙烯-乙烯/丁烯苯乙烯三嵌段共聚物(SEBS)、苯乙烯-乙烯/丙烯二嵌段共聚物(SEP)、苯乙烯-丁二烯-苯乙烯三嵌段共聚物(SBS)和苯乙烯-异戊二烯-苯乙烯三嵌段共聚物(SIS),或其混合物。
12.根据前述权利要求中任一项所述的组合物,所述组合物包括1至10wt%的有机聚合物胶凝剂。
13.根据前述权利要求中任一项所述的组合物作为电缆填料的用途。
14.一种电缆,例如光纤电缆,所述电缆包含根据权利要求1至12中任一项所述的组合物。
15.一种电缆,所述电缆包括被护套包围的传导芯、根据权利要求1至12中任一项所述的组合物,所述组合物布置在所述传导芯与所述护套之间,其中所述护套包括聚丙烯。
16.一种用于制造包括传导芯和护套的电缆的方法,所述方法包括以下步骤:将所述电缆护套挤出到所述传导芯上,以及在挤出步骤期间将根据权利要求1至12中任一项所述的组合物插置在所述传导芯与护套之间。
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KR20110132763A (ko) * | 2010-06-03 | 2011-12-09 | 주식회사 제씨콤 | 저밀도형 광케이블용 겔 조성물 및 그의 제조방법 |
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