CN106188967A - 一种环保型耐磨抗曲挠pvc线缆护套料 - Google Patents
一种环保型耐磨抗曲挠pvc线缆护套料 Download PDFInfo
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Abstract
本发明提供一种环保型耐磨抗曲挠PVC线缆护套料,所述线缆护套料的主要组成和含量为,PVC 树脂为70~100份;CPE为1~10份;重质碳酸钙为30~50份;活性钙为20~30份;纳米粘土为8~12份;氢氧化铝为10~20份;环保增塑剂为40~50份;钙锌稳定剂为5‑6份;硬脂酸为0.1‑0.3份;PE蜡为0.5‑1.5份。本发明提供一种环保型耐磨抗曲挠PVC线缆护套料,其通过添加CPE,使线缆具有增韧、抗冲击性能,同时配合使用纳米粘土,一方面是提高阻燃性能,另一方面是挤出电缆表面具有强度高,耐摩擦等功能,不使用对人体有害的邻苯二甲酸二辛脂以及对皮肤有刺激性的三氧化二锑,更符合环保性能要求。
Description
技术领域
本发明涉及电线电缆绝缘胶料领域,特别涉及一种环保型耐磨抗曲挠PVC线缆护套料。
背景技术
随着全球市场化的不断发展,对电缆的环保性能要求越来越高,尤其是欧盟市场,需要符合欧盟ROHS,REACH 及PAHS 等环保要求才可以进入,并且对电缆的抗磨,抗曲挠的性能也往往有较高要求,因此需要开发一种环保型耐磨抗曲挠PVC线缆护套料。
发明内容
针对以上问题,本发明提供一种环保型耐磨抗曲挠PVC线缆护套料,其通过添加CPE,同时配合使用纳米粘土,选用环保增塑剂以及钙锌稳定剂使得线缆达到相应的要求。
本发明提供一种环保型耐磨抗曲挠PVC线缆护套料,所述线缆护套料的主要组成和含量为:(以下各组分含量以重量份数计)
PVC 树脂为70~100份;
CPE为1~10份;
重质碳酸钙为30~50份;
活性钙为20~30份;
纳米粘土为8~12份;
氢氧化铝为10~20份;
环保增塑剂为40~50份;
钙锌稳定剂为5-6份;
硬脂酸为0.1-0.3份;
PE蜡为0.5-1.5份。
作为本发明进一步改进,本发明所述PVC树脂优先选择平均分子量为1300的PVC树脂,采用在PVC中添加CPE,可使得材料具有增韧、抗冲击性能。
作为本发明进一步改进,所述重质碳酸钙为2500目,平均粒径在1.42~1.62µm,粒径90%分布在1~5µm,碳酸钙含量为98%的重质碳酸钙,重质碳酸钙主要用于提高机械强度,改善工艺性能,为了达到本发明护套料性能因此需使用以上性能的重质碳酸钙。
作为本发明进一步改进,所述纳米粘土为聚结体片层平均直径为300-500nm,聚结体片层平均厚度为30-50nm,比表面积为30-40m2/g,325目筛余量≤0.02%的粘土,纳米粘土具有补强性能好,填充量大,易加工的特点,同时可以提供一定的阻燃效果,利用纳米粘土基材料的成碳性能,限制自由基的迁移,可一定幅度提高线缆氧指数。
作为本发明进一步改进,所述环保增塑剂为对苯二甲酸二辛酯,一般电缆用邻苯二甲酸二辛脂,不符合欧盟要求,因此选择使用更为环保的对苯二甲酸二辛酯增塑剂。
本发明提供一种环保型耐磨抗曲挠PVC线缆护套料,其通过添加CPE,使得材料具有增韧、抗冲击性能,同时配合使用纳米粘土,一方面是提高阻燃性能,另一方面是挤出电线表面具有强度高,耐摩擦等功能。此外为了满足欧盟的环保要求,本发明使用氢氧化铝替代三氧化二锑,主要是因为三氧化二锑容易引起皮肤过敏。
采用本发明所述的环保型耐磨抗曲挠PVC线缆经测试,基本性能满足以下性能:
1.耐磨测试:电线挂重3.3N来回经过80#砂纸5000次摩擦,不露出绝缘(试验时记录露绝缘的耐磨次数);
2.摩擦力测试:电线相互之间摩擦力小于10N;
3.相关机械性能
硬度SHORE A (ASTM D2240) | 86-90A |
抗张强度(GB/T5023) | ≥10.0MPa |
伸长率(GB/T5023) | ≥150% |
强度变化率(GB/T5023) | ±20% |
伸长率变化率(GB/T5023) | ±20% |
注:热老化条件:80℃×168h
通过以上测试数据可知,使用本发明配方制作成的电缆性能满足标准要求。
具体实施方式
以下结合实施例1、2对发明做详细的说明:
以下结合实施例对本发明作进一步具体描述,具体成分如下表:
项目 | 实施1 | 实施2 |
PVC | 100 | 90 |
CPE | 6 | 5 |
重钙 | 39 | 41 |
活性钙 | 26 | 28 |
纳米黏土 | 11 | 12 |
氢氧化铝 | 14 | 16 |
对苯二甲酸二辛脂 | 44 | 47 |
钙锌稳定剂 | 5.7 | 6.0 |
硬脂酸 | 0.2 | 0.3 |
PE蜡 | 1.0 | 1.2 |
制备方法:
根据配方表中的重量份数将材料加入到混合机中高速混合后在双螺杆挤出机内挤出造粒。其中,混合机容量为500升,双螺杆挤出机的直径为150mm,造粒温度为140-180℃,挤出速度为40转/分钟。
采用本发明所述电缆料得到的电源线性能如下表所示(挤线机为直径为90mm的单螺杆电线挤出机,挤出温度为160-180℃,速度为80米/分钟)。
项目 | 标准要求 | 实施1 | 实施2 |
硬度SHORE A | 86-90 | 89 | 86 |
抗张强度(MPa) | ≥10.0MPa | 18.4 | 16.5 |
伸长率(%) | ≥150% | 280 | 260 |
烘箱老化强度变化率(%) | ±20% | 12 | 10 |
烘箱老化伸长变化率(%) | ±20% | -7 | -15 |
耐磨测试(次) | 5000次不露绝缘 | 6000 | 5800 |
摩擦力测试(N) | ≤10 | 7 | 8 |
注:热老化条件:80℃×168h,摩擦力通过摩擦机测试结果。
从上表可以看出,采用本发明的线缆护套料制作的电线的抗张强度和伸长率能满足标准要求,烘箱老化变化率都在±20%,且耐磨次数都能满足5000次以上,摩擦力在10N以内。
上述制作方法及配方只是说明本发明的技术思路和特点,其目的是让熟悉该技术的人士了解本发明的内容并进行实施,所有根据本发明精神所作的等效变化,都应涵盖在本发明的保护范围之内。
Claims (6)
1.一种环保型耐磨抗曲挠PVC线缆护套料,其特征在于,所述护套料的主要组成和含量为,以下各组分含量以重量份数计;
PVC 树脂为70~100份;
CPE为1~10份;
重质碳酸钙为30~50份;
活性钙为20~30份;
纳米粘土为8~12份;
氢氧化铝为10~20份;
环保增塑剂为40~50份;
钙锌稳定剂为5-6份;
硬脂酸为0.1-0.3份;
PE蜡为0.5-1.5份。
2.根据权利要求1所述的一种环保型耐磨抗曲挠PVC线缆护套料,其特征在于:所述PVC树脂优先选择平均分子量为1300的PVC。
3.根据权利要求1所述的一种环保型耐磨抗曲挠PVC线缆护套料,其特征在于:CPE优先选择门尼粘度为ML(1+4)125℃为95~115,氯含量为35~37%的胶料。
4.根据权利要求1所述的一种环保型耐磨抗曲挠PVC线缆护套料,其特征在于:所述重质碳酸钙为2500目,平均粒径在1.42~1.62µm,粒径90%分布在1~5µm,碳酸钙含量为98%的重质碳酸钙。
5.根据权利要求1所述的一种环保型耐磨抗曲挠PVC线缆护套料,其特征在于:所述纳米粘土为聚结体片层平均直径为300-500nm,聚结体片层平均厚度为30-50nm,比表面积30-40m2/g,325目筛余量≤0.02%的粘土。
6.根据权利要求1所述的一种环保型耐磨抗曲挠PVC线缆护套料,其特征在于:所述环保增塑剂为对苯二甲酸二辛酯。
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Cited By (3)
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CN107556654A (zh) * | 2017-09-13 | 2018-01-09 | 安徽美腾特种电缆材料有限公司 | 一种90°pvc阻燃护套料及其制备方法 |
CN107586420A (zh) * | 2017-09-28 | 2018-01-16 | 广东顺德江顺磁材有限公司 | 一种表面高光亮、高黑色pvc硬质型材颗粒料及其制造方法 |
CN113004641A (zh) * | 2021-04-30 | 2021-06-22 | 浙江堂正格塑胶科技有限公司 | 耐寒仿硅胶pvc改性颗粒料 |
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CN102391591A (zh) * | 2011-07-28 | 2012-03-28 | 联塑市政管道(河北)有限公司 | 一种聚氯乙烯电力护套管及其加工方法 |
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CN102391591A (zh) * | 2011-07-28 | 2012-03-28 | 联塑市政管道(河北)有限公司 | 一种聚氯乙烯电力护套管及其加工方法 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107556654A (zh) * | 2017-09-13 | 2018-01-09 | 安徽美腾特种电缆材料有限公司 | 一种90°pvc阻燃护套料及其制备方法 |
CN107586420A (zh) * | 2017-09-28 | 2018-01-16 | 广东顺德江顺磁材有限公司 | 一种表面高光亮、高黑色pvc硬质型材颗粒料及其制造方法 |
CN113004641A (zh) * | 2021-04-30 | 2021-06-22 | 浙江堂正格塑胶科技有限公司 | 耐寒仿硅胶pvc改性颗粒料 |
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Application publication date: 20161207 |
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RJ01 | Rejection of invention patent application after publication |