CN117285813B - 一种新能源汽车充电桩用电线电缆材料 - Google Patents
一种新能源汽车充电桩用电线电缆材料 Download PDFInfo
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Abstract
发明提供一种新能源汽车充电桩用电线电缆材料,包括以下质量份的组分:复合材料45‑100质量份、热塑性弹性体15‑30质量份、阻燃剂20‑50质量份、无机填料10‑50质量份、增塑剂30‑50质量份、润滑剂5‑20质量份、相容剂10‑25质量份;所述复合材料为质量比为(5‑15):1的热塑性聚氨酯弹性体和改性环氧树脂。本申请提供的新能源汽车充电桩用电线电缆材料不仅具有较低的硬度和热变形率、较好的耐热冲击性和阻燃性能、较高的90℃绝缘电阻,而且具有高的断裂伸长率和抗张强度,即使进行老化处理,断裂伸长率和抗张强度下降仍不明显。
Description
技术领域
本发明属于电缆线材料领域,具体涉及一种新能源汽车充电桩用电线电缆材料。
背景技术
新能源汽车是指采用非常规的车用燃料作为动力来源(或使用常规的车用燃料、采用新型车载动力装置),综合车辆的动力控制和驱动方面的先进技术,形成的技术原理先进、具有新技术、新结构的汽车。新能源汽车包括纯电动汽车、增程式电动汽车、混合动力汽车、燃料电池电动汽车、氢发动机汽车等。新能源汽车与传统汽车相比,具有运行平稳、无噪声、无污染、低碳排放、高安全等特性,而具有广阔的市场应用前景。
其中,纯电动汽车、增程式电动汽车等充电汽车,在节能减排、减少人类对传统石油能源依赖方面具有传统汽车不可比拟的优势,而成为新一代的交通工具,充电汽车的兴起对充电桩的发展起到很大的推动作用,而充电桩电缆作为充电桩的重要组成部分,电动汽车充电桩电缆的需求量也随之倍增。
针对现有技术的充电桩电缆负载电流较大,导体通过高电流产生的热量容易引起电缆材料发热和老化,且充电桩电缆长期暴露于外界环境,易受汽车碾压、日光照射、空气氧化、酸碱化合物等环境因素的影响,使用寿命低,以及绝缘性能差、易燃烧,将会出现严重的安全隐患的问题,由于热塑性弹性体(TPE)具有加工性能好、手感细腻、硬度范围宽、阻燃性能好等特点,现有技术采用热塑性弹性体作为电线电缆的材料,但是热塑性弹性体由于耐高温性能不佳、力学性能不好等缺点,限制了其在充电桩线缆的应用。
针对现有技术存在的问题,如何提供一种新能源汽车充电桩用电线电缆材料,使制得的电线电缆材料不仅具有好的耐老化性和绝缘性能,且阻燃性能和力学性能好,是本发明亟待解决的问题。
发明内容
本发明的目的在于提供一种新能源汽车充电桩用电线电缆材料,以解决上述背景技术中提出的问题。
为实现上述目的,本发明提供如下技术方案:本发明提供一种新能源汽车充电桩用电线电缆材料,包括以下质量份的组分:复合材料45-100质量份、热塑性弹性体15-30质量份、阻燃剂20-50质量份、无机填料10-50质量份、增塑剂30-50质量份、润滑剂5-20质量份、相容剂10-25质量份;
所述复合材料为质量比为(5-15):1的热塑性聚氨酯弹性体和改性环氧树脂。
作为进一步的改进,所述改性环氧树脂的制备方法,包括以下步骤:
(1.1)将活性稀释剂、环氧树脂和笼型聚倍半硅氧烷加入反应釜中,在温度为100-140℃的条件下充分搅拌至混合均匀;
(1.2)将步骤(1.1)的体系升温至150-200℃后,加入低分子量聚苯醚,进行高速搅拌后,加入4,4-二氨基二苯砜,继续搅拌至反应完全,后处理,制得改性环氧树脂。
作为进一步的改进,所述步骤(1.1)中环氧树脂和笼型聚倍半硅氧烷的质量比为1:(0.3-0.4)。
作为进一步的改进,所述步骤(1.2)中环氧树脂和低分子量聚苯醚的质量比为1:(0.1-0.5)。
作为进一步的改进,所述阻燃剂为三聚氰胺氰尿酸盐和次磷酸盐的组合物。
作为进一步的改进,所述次磷酸盐和三聚氰胺氰尿酸盐的质量比为1:
(0.2-0.6)。
作为进一步的改进,所述增塑剂为环氧植物油、环氧脂肪酸甲酯中的至少一种。
作为进一步的改进,所述润滑剂为硬脂酸、硬脂酸钙、聚乙烯蜡、硬脂酸甘油酯中的至少一种。
作为进一步的改进,所述相容剂为马来酸酐接枝SEBS、马来酸酐接枝PE中的至少一种。
作为进一步的改进,所述无机填料为氢氧化镁、氢氧化铝、碳酸钙中的至少一种。
与现有技术相比,本发明的有益效果是:本申请提供的新能源汽车充电桩用电线电缆材料不仅具有较低的硬度和热变形率、较好的耐热冲击性和阻燃性能、较高的90℃绝缘电阻,而且具有高的断裂伸长率和抗张强度,即使进行老化处理,断裂伸长率和抗张强度下降仍不明显。
具体实施方式
以下将结合具体实施方案来说明本发明。需要说明的是,下面的实施例为本发明的示例,仅用来说明本发明,而不用来限制本发明。在不偏离本发明主旨或范围的情况下,可进行本发明构思内的其他组合和各种改良。
以下实施例中,除低分子量聚苯醚、改性环氧树脂外,其余所使用的化合物单体及相关试剂均可从市场购得,其中,TPU材料购自惠州市胜鉴塑胶科技有限公司,牌号为TPU-03;热塑性弹性体购自金华市搏佳塑胶科技有限公司,牌号为HBBT123;三聚氰胺氰尿酸盐购自广州市双力橡胶原料贸易有限公司;环氧大豆油购自山东创利新材料有限公司,货号为XYH-9875;聚乙烯蜡购自河北旭步新型材料有限公司,货号为jyxl-001;马来酸酐接枝SEBS购自深圳易普诺化工有限公司,牌号为FG-1901GT;马来酸酐接枝PE购自广东川亨新材料科技有限公司,型号为CH905D;聚苯醚购自上海星巷塑化有限公司,牌号为646;活性稀释剂692购自湖北绿色家园材料技术股份有限公司,货号为LS-692;环氧树脂购自广州盈润化工有限公司,型号为NPEL128,环氧当量为185g/eq;笼型聚倍半硅氧烷购自西安齐岳生物科技有限公司。
低分子量聚苯醚的制备方法,包括以下步骤:
向反应釜中加入甲苯,并升温至97℃,然后将向反应釜中加入聚苯醚,搅拌1h后,加入二酚基丙烷,继续搅拌0.5h后,加入过氧化二苯甲酰,继续搅拌3h后,冷却至室温,并使用无水甲醇洗涤5次,即得低分子量聚苯醚。
改性环氧树脂的制备方法,包括以下步骤:
(1.1)将10质量份活性稀释剂692、90质量份环氧树脂和25质量份笼型聚倍半硅氧烷加入反应釜中,在温度为125℃的条件下充分搅拌至混合均匀,搅拌速度为50r/min,搅拌时间为20min;
(1.2)将步骤(1.1)的体系升温至170℃后,加入32质量份低分子量聚苯醚,进行高速搅拌后,加入37质量份4,4-二氨基二苯砜,继续搅拌至反应完全,真空脱泡,制得改性环氧树脂,其中,高速搅拌的速度为400r/min,搅拌时间为0.5h。。
实施例1-5及对比例1-3的新能源汽车充电桩用电线电缆材料,其制备步骤如下:
(1)向高速混合机中加入复合材料、热塑性弹性体、无机填料、相容剂在60℃下以400r/min的转速搅拌30min,再加入增塑剂、润滑剂、阻燃剂在80℃下以600r/min混合的条件下得到混合物料;
(2)将步骤(1)中得到的混合物料放入到双螺杆挤出机中进行熔融捏合并挤出,挤出温度为240℃,螺杆转速为600r/min;再对挤出机模头挤出的熔融输出物进行水冷却,制成粒料后包装即完成。
实施例1-5、对比例1-3中其需要的组分及各组分含量如表1-2所示:
表1
表2
对实施例1-5、对比例1制得的新能源汽车充电桩用电线电缆材料进行硬度、热老化性能、抗张强度、断裂伸长率、热变形、阻燃、耐热冲击性90℃绝缘电阻试验,试验测试结果如表3-4所示。
测试方法如下:
硬度测试:按照ASTM D2240硬度计硬度的标准试验方法;
热老化性能测试:依照GB/T 2951.12-2008规定进行老化处理,老化温度为100±2℃,老化时间为168h,并依照GB/T 2951.12-2008规定进行抗伸张强度、断裂伸长率试验;
抗张强度、断裂伸长率试验:依照GB/T 1040.3-2006的规定进行,厚度为(1.0±0.1)mm,试验速度为(25±5)mm/min。
热变形试验:依照GB/T 8815规定进行,试验温度为90℃,试验时间为4h;
阻燃性能:依照GB/T 18380.12-2008规定,在(60±2)℃放置4h后进行垂直燃烧试验;
耐热冲击性测试:依照GB/T 2951.31-2008规定测试;
90℃绝缘电阻:依照GB/T12706-2008规定进行测试。
表3
表4
由实施例1、对比例1对比可知,使用本申请改性环氧树脂制得的新能源汽车充电桩用电线电缆材料,不仅具有高的断裂伸长率和抗张强度,且老化后的断裂伸长率和抗张强度下降不明显,且耐热冲击性好,无裂纹,热变形率也有所降低,几乎不发生变形,且具有较高的90℃绝缘电阻,且硬度小于85A,新能源汽车充电桩用电线电缆材料柔软性好;
由实施例1、对比例2-3对比可知,热塑性聚氨酯弹性体和改性环氧树脂的质量比在合适的范围内时,不仅可以提高老化后的断裂伸长率和抗张强度,且热变形率也相应降低;
由实施例1、实施例4-5对比可知,次磷酸盐和三聚氰胺氰尿酸盐的质量比在合适的范围内时,具有好的垂直燃烧等级,阻燃性能好;
由实施例1-3对比可知,使用本申请提供的组分和含量制得的新能源汽车充电桩用电线电缆材料不仅具有较低的硬度和热变形率、较好的耐热冲击性和阻燃性能,而且具有高的断裂伸长率和抗张强度,即使进行老化处理,断裂伸长率和抗张强度下降仍不明显,且具有较高的90℃绝缘电阻;
综上,本申请提供的新能源汽车充电桩用电线电缆材料不仅具有较低的硬度和热变形率、较好的耐热冲击性和阻燃性能、较高的90℃绝缘电阻,而且具有高的断裂伸长率和抗张强度,即使进行老化处理,断裂伸长率和抗张强度下降仍不明显。
以上实施方式只为说明本发明的技术构思及特点,其目的在于让熟悉此项技术的人了解本发明内容并加以实施,并不能以此限制本发明的保护范围,凡根据本发明精神实质所做的等效变化或修饰,都应涵盖在本发明的保护范围内。
Claims (5)
1.一种新能源汽车充电桩用电线电缆材料,其特征在于:包括以下质量份的组分:复合材料45-100质量份、热塑性弹性体15-30质量份、阻燃剂20-50质量份、无机填料10-50质量份、增塑剂30-50质量份、润滑剂5-20质量份、相容剂10-25质量份;
所述复合材料为质量比为(5-15):1的热塑性聚氨酯弹性体和改性环氧树脂;
所述改性环氧树脂的制备方法,包括以下步骤:
(1.1)将活性稀释剂、环氧树脂和笼型聚倍半硅氧烷加入反应釜中,在温度为100-140℃的条件下充分搅拌至混合均匀;
(1.2)将步骤(1.1)的体系升温至150-200℃后,加入低分子量聚苯醚,进行高速搅拌后,加入4,4-二氨基二苯砜,继续搅拌至反应完全,后处理,制得改性环氧树脂;
所述步骤(1.1)中环氧树脂和笼型聚倍半硅氧烷的质量比为1:(0.3-0.4);
所述步骤(1.2)中环氧树脂和低分子量聚苯醚的质量比为1:(0.1-0.5);
所述阻燃剂为三聚氰胺氰尿酸盐和次磷酸盐的组合物;
所述次磷酸盐和三聚氰胺氰尿酸盐的质量比为1:(0.2-0.6)。
2.根据权利要求1所述的一种新能源汽车充电桩用电线电缆材料,其特征在于:所述增塑剂为环氧植物油、环氧脂肪酸甲酯中的至少一种。
3.根据权利要求1所述的一种新能源汽车充电桩用电线电缆材料,其特征在于:所述润滑剂为硬脂酸、硬脂酸钙、聚乙烯蜡、硬脂酸甘油酯中的至少一种。
4.根据权利要求1所述的一种新能源汽车充电桩用电线电缆材料,其特征在于:所述相容剂为马来酸酐接枝SEBS、马来酸酐接枝PE中的至少一种。
5.根据权利要求1所述的一种新能源汽车充电桩用电线电缆材料,其特征在于:所述无机填料为氢氧化镁、氢氧化铝、碳酸钙中的至少一种。
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