CN105860500A - 一种汽车上用电线电缆用料及其制备方法 - Google Patents

一种汽车上用电线电缆用料及其制备方法 Download PDF

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CN105860500A
CN105860500A CN201610407614.0A CN201610407614A CN105860500A CN 105860500 A CN105860500 A CN 105860500A CN 201610407614 A CN201610407614 A CN 201610407614A CN 105860500 A CN105860500 A CN 105860500A
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thermoplastic elastomer
electric wire
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朱李红
徐华芳
王江海
杨玉双
蒋艳
金德胜
黄显武
王焰芳
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ANHUI TIANYUAN CABLE Co Ltd
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Abstract

本发明公开了一种汽车上用电线电缆用料及其制备方法,由以下重量份的原料组成:TEP热塑弹性体80—120份、有机累托石6—8份、钛酸四异丙酯1‑3份、沉淀白炭黑10—15份、耐寒增塑剂10—15份、云母15—20份、滑石粉20—30份、阻燃剂4—6份、润滑剂3—5份、抗氧剂0.2—0.6份、细度小于300硅烷偶联剂3—5份、炭黑4—6份。本发明克服了现有技术的不足,达到耐油、耐热、柔软、回弹力好、耐溶剂、耐寒及低烟等综合性能。

Description

一种汽车上用电线电缆用料及其制备方法
技术领域
本发明涉及电缆外包覆材料技术领域,具体属于一种汽车上用电线电缆用料及其制备方法及其制备方法。
背景技术
电线电缆作为国民经济第二大产业,已被广泛应用于各类电能和信号的传输。与其它材料相比,无卤阻燃热塑性弹性体由于具有比重轻、易于加工成型、良好的综合力学性能以及电绝缘性能优良等特点,是各类电线电缆绝缘和护套的首选材料。
热塑性聚氨酯(TEP热塑弹性体)是指由二异氰酸酯、多元醇和扩链剂聚合而成的一类弹性体材料,其具有高强度、高弹性、耐磨、耐油、耐低温等特点。TEP热塑弹性体按照分子结构可分为聚酯和聚醚型两大类,由于电缆的使用环境较复杂,要求的使用寿命在10年以上,而聚酯型TEP热塑弹性体的高温耐水解性能较差,且其低温柔韧性能也不及聚醚型TEP热塑弹性体,故在电线电缆领域使用的TEP热塑弹性体多为聚醚型。
一直以来,TEP热塑弹性体阻燃性能的研究是弹性电缆料领域最为关注的一个课题。国外的路博润、亨斯曼和巴斯夫等TEP热塑弹性体合成厂家都有各自牌号的满足UL电线阻燃要求的低烟无卤TEP热 塑弹性体电缆料,国内许多电缆料生产厂家也都纷纷推出了相应的环保阻燃TEP热塑弹性体及无卤阻燃TEP热塑弹性体电缆料。总的来说,国产阻燃TEP热塑弹性体弹性电缆料的综合性能还远不及进口的产品,但是由于技术上的垄断,进口阻燃TEP热塑弹性体弹性电缆料的价格一直居高不下,这在一定程度上限制了其在国内市场的应用,因此,开发性价比较高的阻燃TEP热塑弹性体弹性料是目前国内电缆料制造商的当务之急。另外,随着新能源政策的推出,风力发电、电动汽车等行业都炙手可热,与之相配套的电线电缆的开发工作也逐步展开,阻燃TEP热塑弹性体弹性电缆料的市场将进一步打开。
普通PVC绝缘料还存在着耐酸碱,耐热油,耐有机溶剂性能较差等缺点,在所述特定环境中容易出现破损和开裂。热塑性聚氨脂(TEP热塑弹性体)是一种新型的各项性能优异的有机高分子合成材料,具有优异的物理性能,例如耐磨性,回弹力都好过普通PVC,耐老化性好过橡胶,可以说是替代PVC的最理想的材料。
发明内容
针对上述问题,本发明的目的是提供了一种汽车上用电线电缆用料及其制备方法,克服了现有技术的不足,达到耐油、耐热、柔软、回弹力好、耐溶剂、耐寒及低烟等综合性能。
本发明采用的技术方案如下:
一种汽车上用电线电缆用料,由以下重量份的原料组成:TEP热塑弹性体80—120份、有机累托石6—8份、钛酸四异丙酯1-3份、 沉淀白炭黑10—15份、耐寒增塑剂10—15份、云母15—20份、滑石粉20—30份、阻燃剂4—6份、润滑剂3—5份、抗氧剂0.2—0.6份、细度小于300硅烷偶联剂3—5份、炭黑4—6份。
所述的原料TEP热塑弹性体100份、有机累托石7份、钛酸四异丙酯2份、沉淀白炭黑12份、耐寒增塑剂12份、云母18份、滑石粉25份、阻燃剂5份、润滑剂4份、抗氧剂0.5份、细度小于300硅烷偶联剂4份、炭黑5份。
所述的耐寒增塑剂选用TM8-10、癸二酸二辛酯或己二酸二辛酯中的一种。
一种汽车上用电线电缆用料的制备方法,1)将有机累托石与钛酸四异丙酯加入高速混合机中,在95-105℃,以500-600rpm的速度搅拌混合20-25min,然后将经钛酸四异丙酯偶联剂处理过有机累托石投入螺杆双挤出机中,再加入TEP热塑弹性体,挤出机熔融段温度控制在120-130℃,在400-600r/min的转速下熔融共混10-20min,然后挤出造粒,即得TEP热塑弹性体/有机累托石纳米复合材料;
2)将滑石粉与上述制得的TEP热塑弹性体/有机累托石纳米复合材料加入到混炼机上混炼10-20min,温度为100-110℃,得到混炼胶;
3)将上述制得的混炼胶与云母、炭黑,投入密炼机中,混炼2-3min后加入沉淀白炭黑、抗氧剂继续混炼4-5min,最后加入耐寒增塑剂、阻燃剂、润滑剂、细度小于300硅烷偶联剂混炼1-2min,密炼机转速150-200r/min,温度控制在90-105℃;
4)将密炼后得到的混和料经双锥剪切输送入螺杆挤出机挤出加 工,挤出后在平板硫化机上进行硫化,在160℃下热压8-10min,常温冷压4-6min,硫化压力6-10MPa,出线速度为12-15m/min。
与已有技术相比,本发明的有益效果如下:
本发明中使用的云母、氢氧化铝阻燃剂,具有环保无毒、阻燃效率高等优点,其极限氧指数也能得到提高;滑石粉、细度小于300目的硅胶改善了一般阻燃剂不耐水易析出、耐温低的缺点,通过对累托石有机改性后与TEP热塑弹性体熔融共混后制得TEP热塑弹性体/有机累托石纳米复合材料,可以明显提高改善绝缘料的刚性和抗变形能力,同时也可以提高绝缘料的耐热空气老化性能以及耐油性能。本发明生产出来的绝缘料不仅具有优良的机械物理性能、绝缘性能,而且同时还具有良好的耐高低温性、耐油、耐溶剂、耐磨性、耐臭氧、耐老化等优点,经久耐用,环保无污染,完全能够满足现代电线电缆的要求。
具体实施方式
一种汽车上用电线电缆用料,由以下重量份的原料组成:TEP热塑弹性体100份、有机累托石7份、钛酸四异丙酯2份、沉淀白炭黑12份、耐寒增塑剂12份、云母18份、滑石粉25份、阻燃剂5份、润滑剂4份、抗氧剂0.5份、细度小于300硅烷偶联剂4份、炭黑5份;所述的耐寒增塑剂选用TM8-10、癸二酸二辛酯或己二酸二辛酯中的一种。
一种汽车上用电线电缆用料的制备方法,1)将有机累托石与 钛酸四异丙酯加入高速混合机中,在95-105℃,以500-600rpm的速度搅拌混合20-25min,然后将经钛酸四异丙酯偶联剂处理过有机累托石投入螺杆双挤出机中,再加入TEP热塑弹性体,挤出机熔融段温度控制在120-130℃,在400-600r/min的转速下熔融共混10-20min,然后挤出造粒,即得TEP热塑弹性体/有机累托石纳米复合材料;
2)将滑石粉与上述制得的TEP热塑弹性体/有机累托石纳米复合材料加入到混炼机上混炼10-20min,温度为100-110℃,得到混炼胶;
3)将上述制得的混炼胶与云母、炭黑,投入密炼机中,混炼2-3min后加入沉淀白炭黑、抗氧剂继续混炼4-5min,最后加入耐寒增塑剂、阻燃剂、润滑剂、细度小于300硅烷偶联剂混炼1-2min,密炼机转速150-200r/min,温度控制在90-105℃;
4)将密炼后得到的混和料经双锥剪切输送入螺杆挤出机挤出加工,挤出后在平板硫化机上进行硫化,在160℃下热压8-10min,常温冷压4-6min,硫化压力6-10MPa,出线速度为12-15m/min。
本发明生产出来的绝缘料的主要性能指标如下:
1、25℃时绝缘电阻不小于150MΩ/km。
2、成品电缆经受交流50HZ3.5KV/5min电压试验不击穿。
3、物理机械性能如下:
1 抗张强度N/mm2≥15.2
2 断裂伸长率%≥360
3 140℃×168h老化后抗张强度最大变化率%±26
4 140℃×168h老化后断裂伸长率最大变化率%±26
5 85℃×336h吸水试验mg/cm2≤1
6 130℃×1h收缩试验%≤3.5
7 阻燃性能:符合GB/T19666中A,B,C级
8 低烟性能:最小透光率≥60%
9 无卤性能要求:pH加权值≥4.4
以上显示和描述了本发明的基本原理、主要特征和本发明的优点。本行业的技术人员应该了解,本发明不受上述实施例的限制,上述实施例和说明书中描述的只是说明本发明的原理,在不脱离本发明精神和范围的前提下,本发明还会有各种变化和改进,这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。

Claims (4)

1.一种汽车上用电线电缆用料,其特征在于它由以下重量份的原料组成:TEP热塑弹性体80—120份、有机累托石6—8份、钛酸四异丙酯1-3份、沉淀白炭黑10—15份、耐寒增塑剂10—15份、云母15—20份、滑石粉20—30份、阻燃剂4—6份、润滑剂3—5份、抗氧剂0.2—0.6份、细度小于300硅烷偶联剂3—5份、炭黑4—6份。
2.根据权利要求1所述的一种汽车上用电线电缆用料,其特征在于:所述的原料TEP热塑弹性体100份、有机累托石7份、钛酸四异丙酯2份、沉淀白炭黑12份、耐寒增塑剂12份、云母18份、滑石粉25份、阻燃剂5份、润滑剂4份、抗氧剂0.5份、细度小于300硅烷偶联剂4份、炭黑5份。
3.根据权利要求1所述的一种汽车上用电线电缆用料,其特征在于:所述的耐寒增塑剂选用TM8-10、癸二酸二辛酯或己二酸二辛酯中的一种。
4.根据权利要求1所述的一种汽车上用电线电缆用料的制备方法,其特征在于:
1)将有机累托石与钛酸四异丙酯加入高速混合机中,在95-105℃,以500-600rpm的速度搅拌混合20-25min,然后将经钛酸四异丙酯偶联剂处理过有机累托石投入螺杆双挤出机中,再加入TEP热塑弹性体,挤出机熔融段温度控制在120-130℃,在400-600r/min的转速下熔融共混10-20min,然后挤出造粒,即得TEP热塑弹性体/有机累托石纳米复合材料;
2)将滑石粉与上述制得的TEP热塑弹性体/有机累托石纳米复合材料加入到混炼机上混炼10-20min,温度为100-110℃,得到混炼胶;
3)将上述制得的混炼胶与云母、炭黑,投入密炼机中,混炼2-3min后加入沉淀白炭黑、抗氧剂继续混炼4-5min,最后加入耐寒增塑剂、阻燃剂、润滑剂、细度小于300硅烷偶联剂混炼1-2min,密炼机转速150-200r/min,温度控制在90-105℃;
4)将密炼后得到的混和料经双锥剪切输送入螺杆挤出机挤出加工,挤出后在平板硫化机上进行硫化,在160℃下热压8-10min,常温冷压4-6min,硫化压力6-10MPa,出线速度为12-15m/min。
CN201610407614.0A 2016-06-12 2016-06-12 一种汽车上用电线电缆用料及其制备方法 Pending CN105860500A (zh)

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CN103205034A (zh) * 2013-03-16 2013-07-17 安徽华津电缆集团有限公司 电线电缆用丁腈-pvc复合物弹性体绝缘料及其制备方法

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CN103122138A (zh) * 2013-01-22 2013-05-29 安徽华津电缆集团有限公司 电力电缆用tpu/sebs热塑性弹性体绝缘料及其制备方法
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