CN116814017B - 一种新能源汽车用高压线电缆料及其制备方法 - Google Patents
一种新能源汽车用高压线电缆料及其制备方法 Download PDFInfo
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Abstract
本申请涉及电缆料的技术领域,具体公开了一种新能源汽车用高压线电缆料及其制备方法。新能源汽车用高压线电缆料包括以下重量份数的原料:PVC:80‑120份;EVA:10‑20份;TPU:15‑25份;阻燃剂70‑90份;稳定剂6‑10份;增塑剂40‑55份;抗氧剂3‑8份;光引发剂15‑20份;交联剂3‑8份;碘氧化铋复合石墨烯15‑25份;本申请的电缆料可用于新能源汽车用高压线缆的生产,其具有耐高温性能和拉伸性好的优点。
Description
技术领域
本申请涉及电缆料领域,更具体地说,它涉及一种新能源汽车用高压线电缆料及其制备方法。
背景技术
近些年来,新能源汽车的发展已经成为全球趋势,我国新能源汽车产业也已经进入了快速发展的阶段。由于新能源汽车内所使用的线缆需要连接高压电池、逆变器、电机等部件,因此,新能源汽车摒弃了传统燃油车所使用的低压线缆,选择了可以承受较大载流量、耐热性能好、柔软性能强的高压线缆。
目前,新能源汽车用高压线缆多采用无卤阻燃热塑性弹性体TPE作为绝缘层和护套层材料。无卤阻燃热塑性弹性体TPE具有弹性好、耐低温、加工方便的优点,但存在耐热老化性能差等缺点。中国专利CN 106380869A公开了一种125度辐照交联新能源汽车高压线用弹性体电缆料及其制备方法,并通过电子加速器对电缆料进行辐照交联,改善了TPE材料耐热性差的问题,使制得高压线缆具有良好的耐油性能、耐老化性能、耐辐射性能、耐磨性能、抗撕裂性能及柔软度,但是其耐温等级也仍然仅能达到125℃,无法满足更高的耐热等级需求。
发明内容
为了增强高压线缆的耐高温性,本申请提供一种新能源汽车用高压线电缆料及其制备方法。
本申请提供的一种新能源汽车用高压线电缆料及其制备方法采用如下的技术方案:第一方面,本申请提供一种新能源汽车用高压线电缆料,采用如下的技术方案:
一种新能源汽车用高压线电缆料,包括以下重量份数的原料:
通过采用上述技术方案,电缆料中的PVC是影响电缆料的耐高温性能的主要因素之一,PVC存在容易在高温下发生降解老化并且在高温下的易发生变形的缺点;TPU具有耐磨性、耐腐蚀性和良好的力学性能,EVA具有柔韧性好、加工性能优异的优点,通过将PVC、EVA和TPU进行交联共混,能够有效提高电缆料的耐高温性能,其他助剂的加入进一步保证电缆料的阻燃和耐久性;
石墨烯本身具有韧性好和强度高的优点,加入石墨烯一方面能够提高电缆料的能够有效增强电缆料的耐温性和拉伸强度,另一方面,由于石墨烯存在容易团聚不易均匀分散的问题,碘氧化铋复合石墨烯后,有助于减少石墨烯的团聚,使其能够均匀分散提高电缆料的耐高温性能和拉伸性能。
优选的,包括以下重量份数的原料:
通过采用上述技术方案,进一步优化了电缆料的配比,有助于提升电缆料的交联效果,提高其耐高温性能,减少电缆料在高温下出现老化或变形的情况。
优选的,所述碘氧化铋复合石墨烯的制备方法包括以下步骤:
将碘氧化铋分散在无水乙醇中,然后加入硅烷偶联剂,碘氧化铋与硅烷偶联剂的用量比为1:1,搅拌,然后加入石墨烯,碘氧化铋与石墨烯的用量为1:(0.2-0.5)持续搅拌4-6小时,经过离心、水洗、干燥后得到碘氧化铋复合石墨烯。
通过采用上述技术方案,碘氧化铋对石墨烯改性后加入到电缆料的交联体系中,一方面保证了石墨烯均匀分散的效果,另一方面,石墨烯的单层二维蜂窝状晶格结构和碘氧化铋的四方晶体结构协同配合,有利于交联体系形成结构均匀排布的交联产物,进而提高其耐拉伸性能和耐高温性。
优选的,所述碘氧化铋复合石墨烯的粒径为50-90nm。
通过采用上述技术方案,碘氧化铋复合石墨烯的粒径在此范围内取值时,能够保证其在电缆料交联过程中发挥出更好的效果,保证电缆料的耐拉伸性能和耐高温性能。
优选的,所述光引发剂为1-羟基-环己基苯酮。
通过采用上述技术方案,1-羟基-环己基苯酮作为裂解型光引发剂,通过吸收特定波长的紫外光线并形成游离基,这些游离基再夺取聚氯乙烯分子链中的氢原子,促使聚氯乙烯分子链之间相互连接,最终由线型结构转变为三维网状结构的交联产物,改善了PVC的耐高温性能不佳的问题。
优选的,所述阻燃剂为氢氧化镁。
通过采用上述技术方案,氢氧化镁的加入能够进一步提高电缆料的阻燃性能,氢氧化镁与碘氧化铋复合石墨烯协同作用,进一步保证其阻燃和耐高温性,减少电缆料高温变形的情况。
优选的,所述稳定剂为二月桂酸二丁锡,所述增塑剂为对苯二甲酸二辛酯,所述抗氧剂为抗氧剂1010,所述交联剂为三烯丙基异氰脲酸酯。
通过采用上述技术方案,加入二月桂酸二丁锡、对苯二甲酸二辛酯、抗氧剂1010和三烯丙基异氰脲酸酯等助剂保证电缆料的耐温性和耐拉伸性。
第二方面,本申请提供一种新能源汽车用高压线电缆料的制备方法,采用如下的技术方案:
一种新能源汽车用高压线电缆料的制备方法,包括以下步骤:
S1、制备:将TPU、EVA、PVC按照配比混合,在温度为120-150℃的环境下恒温混炼均匀,然后加入碘氧化铋复合石墨烯、交联剂、光引发剂、抗氧剂、增塑剂、稳定剂和阻燃剂继续混炼,同时引入紫外线光源进行辐照10-15分钟,得到混合物;
S2、造粒:将上述制得的混合物进行挤出造粒,得到电缆料。
通过采用上述技术方案,上述原料先在熔融温度下熔融混炼,并且在紫外光的照射下进行辐射交联,交联后仍处于熔融状态的物料,再转移至挤出设备上进行挤出;在这过程中,一方面,光引发剂在紫外光的照射下分解形成自由基发生辐射交联,另一方面,碘氧化铋在紫外光源的激发下,其价带中的电子跃迁到导带,并在价带上留下相对稳定的空穴,碘氧化铋发生电子跃迁的过程中,加速了光引发剂的移动和分解,减少辐照交联过程中,光引发剂容易出现受热挥发,造成光引发体系的交联效率低的情况,进而有利于获得交联聚合度好、耐高温性能和耐拉伸性能稳定的电缆料。
综上所述,本申请具有以下有益效果:
1、由于本申请采用碘氧化铋复合石墨烯,石墨烯本身具有韧性好和强度高的优点,加入石墨烯一方面能够提高电缆料的能够有效增强电缆料的耐温性和拉伸强度,另一方面,由于石墨烯存在容易团聚不易均匀分散的问题,碘氧化铋复合石墨烯后,有助于减少石墨烯的团聚,使其能够均匀分散提高电缆料的耐高温性能和拉伸性能。
2、本申请中优选采用1-羟基-环己基苯酮作光引发剂,1-羟基-环己基苯酮作为裂解型光引发剂,通过吸收特定波长的紫外光线并形成游离基,这些游离基再夺取聚氯乙烯分子链中的氢原子,促使聚氯乙烯分子链之间相互连接,最终由线型结构转变为三维网状结构的交联产物,改善了PVC的耐高温性能不佳的问题,碘氧化铋复合石墨烯对1-羟基-环己基苯酮的游离基生成过程起到加快的作用,从而减少光引发剂在引发交联的过程中发生蒸发,造成交联效率低的情况。
3、本申请的方法,通过制备:将TPU、EVA、PVC按照配比混合,在温度为120-150℃的环境下恒温混炼均匀,然后加入碘氧化铋复合石墨烯、交联剂、光引发剂、抗氧剂、增塑剂、稳定剂和阻燃剂继续混炼,同时引入紫外线光源进行辐照10-15分钟,得到混合物;造粒:将上述制得的混合物进行挤出造粒,得到电缆料,因此获得了交联聚合度好、耐高温性能和耐拉伸性能稳定的电缆料。
具体实施方式
原料来源:
本申请实施例和对比例所有的原料均可通过市售获得,以下原料来源说明仅为了公开清楚,不应对保护范围起到限制作用。
抗氧剂1010:中文名为四(3,5-二叔丁基-4-羟基)苯丙酸季戊四醇酯,CAS号为6683-19-8;
1-羟基-环己基苯酮:CAS号为947-19-3;
硅烷偶联剂KH570:中文名为3-(三甲氧基甲硅基)甲基丙烯酸丙酯,CAS号为2530-85-0;
TPU:聚氨酯,CAS号:26680-22-8;
EVA:乙烯-醋酸乙烯共聚物,CAS号:24937-78-8;
PVC:聚氯乙烯,CAS号:9002-86-2。
实施例
实施例1.1-1.5
一种新能源汽车用高压线电缆料,包括以下重量的原料:
其中,阻燃剂为氢氧化镁,稳定剂为二月桂酸二丁锡,增塑剂为对苯二甲酸二辛酯,抗氧剂为抗氧剂1010,交联剂为三烯丙基异氰脲酸酯,光引发剂为1-羟基-环己基苯酮,加入的碘氧化铋复合石墨烯粒径为75nm;
碘氧化铋复合石墨烯的制备方法包括以下步骤:将1kg的碘氧化铋分散在100mL的无水乙醇中,然后加入硅烷偶联剂KH570,碘氧化铋与硅烷偶联剂的用量比为1:1,搅拌8h,然后加入0.3kg的石墨烯,持续搅拌5小时,通过离心、水洗、干燥后,干燥温度为80℃,得到碘氧化铋复合石墨烯。
一种新能源汽车用高压线电缆料的制备方法,包括以下步骤:
S1、制备:将TPU、EVA、PVC按照上述配比放入混炼机中混合,在温度为140℃的环境下恒温混炼均匀,然后加入碘氧化铋复合石墨烯、交联剂、光引发剂、抗氧剂、增塑剂、稳定剂和阻燃剂继续混炼,同时引入紫外线高压汞灯作为紫外线光源进行辐照15分钟,得到混合物;
S2、造粒:将上述制得的混合物放入双螺杆挤出机中进行挤出造粒,挤出机的七个温度段分别为150℃、170℃、180℃、190℃、200℃、195℃,得到电缆料。
实施例1.1-1.5的高压线电缆料的原料用量如表1。
表1实施例1.1-1.5的高压线电缆料的原料用量(单位:kg)
实施例2.1-2.4
一种新能源汽车用高压线电缆料,与实施例1.3的不同之处在于,加入的碘氧化铋复合石墨烯的粒径不同。
实施例2.1的碘氧化铋复合石墨烯的粒径为50nm;
实施例2.2的碘氧化铋复合石墨烯的粒径为90nm;
实施例2.3的碘氧化铋复合石墨烯的粒径为30nm;
实施例2.4的碘氧化铋复合石墨烯的粒径为120nm。
实施例3
一种新能源汽车用高压线电缆料,与实施例1.3的不同之处在于,以等量的二苯甲酮替换1羟基-环己基苯酮。
实施例4
一种新能源汽车用高压线电缆料的制备方法,与实施例1.3的不同之处在于,将S1中的所有原料同时加入到混炼机中进行混炼。
对比例
对比例1
一种新能源汽车用高压线电缆料,与实施例1.3的不同之处在于,碘氧化铋复合石墨烯的用量为0kg。
对比例2
一种新能源汽车用高压线电缆料,与实施例1.3的不同之处在于,在制备碘氧化铋复合石墨烯的过程中,以等量的二氧化钛替换碘氧化铋。
对比例3
一种新能源汽车用高压线电缆料,与实施例1.3的不同之处在于,在制备碘氧化铋复合石墨烯的过程中,以等量的氧化石墨烯替换石墨烯。
对比例4
一种新能源汽车用高压线电缆料的制备方法,与实施例1.3的不同之处在于,未引入紫外线光源进行辐照工作。
性能检测试验
将上述新能源汽车用高压线电缆料进行性能检测试验。
测试包括:
1.拉伸性能测试:根据GB/T1040-2008中规定的方法对电缆料进行拉伸性能测试。
2.热空气老化试验
根据GB/T2951-2008中规定的方法测试电缆料的热空气老化性能。
测试结果如表2.
表2新能源汽车用高压线电缆料的测试结果
结合实施例1.1-1.5和对比例1-3并结合表2可以看出,石墨烯本身具有韧性好和强度高的优点,加入石墨烯一方面能够提高电缆料的能够有效增强电缆料的耐温性和拉伸强度,另一方面,由于石墨烯存在容易团聚不易均匀分散的问题,碘氧化铋复合石墨烯后,有助于减少石墨烯的团聚,使其能够均匀分散提高电缆料的耐高温性能和拉伸性能;
碘氧化铋对石墨烯改性后加入到电缆料的交联体系中,一方面保证了石墨烯均匀分散的效果,另一方面,石墨烯的单层二维蜂窝状晶格结构和碘氧化铋的四方晶体结构协同配合,有利于交联体系形成结构均匀排布的交联产物,进而提高其耐拉伸性能和耐高温性。
结合实施例1.3、实施例2.1-2.4并结合表2可以看出,实施例1.3和实施例2.1-2.2较优于实施例2.3-2.4,说明碘氧化铋复合石墨烯的粒径在50-90nm范围内取值时,能够保证其在电缆料交联过程中发挥出更好的效果,保证电缆料的耐拉伸性能和耐高温性能。
结合实施例1.3和实施例3并结合表2可以看出,1-羟基-环己基苯酮作为裂解型光引发剂,通过吸收特定波长的紫外光线并形成游离基,这些游离基再夺取聚氯乙烯分子链中的氢原子,促使聚氯乙烯分子链之间相互连接,最终由线型结构转变为三维网状结构的交联产物,改善了PVC的耐高温性能不佳的问题。
结合实施例1.3和实施例4并结合表2可以看出,实施例1.3均优于实施例4,说明先加入TPU、EVA、PVC进行混炼,再加入其他原料,更有利于碘氧化铋复合石墨烯在体系中均匀分散,提高其拉伸性能和耐高温性能。
结合实施例1.3和对比例4并结合表2可以看出,实施例1.3优于对比例4,说明在紫外光的照射下进行辐射交联,一方面,光引发剂在紫外光的照射下分解形成自由基发生辐射交联,另一方面,碘氧化铋在紫外光源的激发下,其价带中的电子跃迁到导带,并在价带上留下相对稳定的空穴,碘氧化铋发生电子跃迁的过程中,加速了光引发剂的移动和分解,减少辐照交联过程中,光引发剂容易出现受热挥发,造成光引发体系的交联效率低的情况,进而有利于获得交联聚合度好、耐高温性能和耐拉伸性能稳定的电缆料。
本具体实施例仅仅是对本申请的解释,其并不是对本申请的限制,本领域技术人员在阅读完本说明书后可以根据需要对本实施例做出没有创造性贡献的修改,但只要在本申请的权利要求范围内都受到专利法的保护。
Claims (7)
1.一种新能源汽车用高压线电缆料,其特征在于,包括以下重量份数的原料:
PVC 80-120份;
EVA 10-20份;
TPU 15-25份;
阻燃剂 70-90份;
稳定剂 6-10份;
增塑剂 40-55份;
抗氧剂 3-8份;
光引发剂 15-20份;所述光引发剂为1-羟基-环己基苯酮;
交联剂 3-8份;
碘氧化铋复合石墨烯 15-25份;
新能源汽车用高压线电缆料的制备方法,包括以下步骤:
S1、制备:将TPU、EVA、PVC按照配比混合,在温度为120-150℃的环境下恒温混炼均匀,然后加入碘氧化铋复合石墨烯、交联剂、光引发剂、抗氧剂、增塑剂、稳定剂和阻燃剂继续混炼,同时引入紫外线光源进行辐照10-15分钟,得到混合物;
S2、造粒:将上述制得的混合物进行挤出造粒,得到电缆料。
2.根据权利要求1所述的一种新能源汽车用高压线电缆料,其特征在于:包括以下重量份数的原料:
PVC 90-110份;
EVA 13-18份;
TPU 17-23份;
阻燃剂 75-85份;
稳定剂 7.5-9份;
增塑剂 45-50份;
抗氧剂 5-7份;
光引发剂 17-19份;
交联剂 5-7份;
碘氧化铋复合石墨烯 18-23份。
3.根据权利要求1所述的一种新能源汽车用高压线电缆料,其特征在于:所述碘氧化铋复合石墨烯的制备方法包括以下步骤:
将所述碘氧化铋分散在无水乙醇中,然后加入硅烷偶联剂,碘氧化铋与硅烷偶联剂的用量比为1:1,搅拌,然后加入石墨烯,碘氧化铋与石墨烯的重量比为1:(0.2-0.5)持续搅拌4-6小时,经过离心、水洗、干燥后得到碘氧化铋复合石墨烯。
4.根据权利要求1所述的一种新能源汽车用高压线电缆料,其特征在于:所述碘氧化铋复合石墨烯的粒径为50-90nm。
5.根据权利要求1所述的一种新能源汽车用高压线电缆料,其特征在于:所述阻燃剂为氢氧化镁。
6.根据权利要求1所述的一种新能源汽车用高压线电缆料,其特征在于:所述稳定剂为二月桂酸二丁锡,所述增塑剂为对苯二甲酸二辛酯,所述抗氧剂为抗氧剂1010,所述交联剂为三烯丙基异氰脲酸酯。
7.一种权利要求2-6任意一项所述的新能源汽车用高压线电缆料的制备方法,其特征在于,包括以下步骤:
S1、制备:将TPU、EVA、PVC按照配比混合,在温度为120-150℃的环境下恒温混炼均匀,然后加入碘氧化铋复合石墨烯、交联剂、光引发剂、抗氧剂、增塑剂、稳定剂和阻燃剂继续混炼,同时引入紫外线光源进行辐照10-15分钟,得到混合物;
S2、造粒:将上述制得的混合物进行挤出造粒,得到电缆料。
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JP2022044096A (ja) * | 2020-09-07 | 2022-03-17 | 日立金属株式会社 | ケーブルおよび絶縁電線 |
CN115490975A (zh) * | 2022-09-27 | 2022-12-20 | 泰州日顺电器发展有限公司 | 一种耐-40℃125℃高低温改性聚氯乙烯汽车电缆料及其制备方法 |
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US6255374B1 (en) * | 1997-11-11 | 2001-07-03 | Servicios Condumes S.A. De C.V. | Heavy metal free polyvinyl chloride compound formulation for insulating thin wall automotive primary cable |
JP2010157413A (ja) * | 2008-12-26 | 2010-07-15 | Hitachi Cable Ltd | ノンハロゲン難燃電線・ケーブル |
JP2022044096A (ja) * | 2020-09-07 | 2022-03-17 | 日立金属株式会社 | ケーブルおよび絶縁電線 |
CN115490975A (zh) * | 2022-09-27 | 2022-12-20 | 泰州日顺电器发展有限公司 | 一种耐-40℃125℃高低温改性聚氯乙烯汽车电缆料及其制备方法 |
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