CN106065143A - 一种pvdf汽车用电缆护套及其制备方法 - Google Patents

一种pvdf汽车用电缆护套及其制备方法 Download PDF

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CN106065143A
CN106065143A CN201610521880.6A CN201610521880A CN106065143A CN 106065143 A CN106065143 A CN 106065143A CN 201610521880 A CN201610521880 A CN 201610521880A CN 106065143 A CN106065143 A CN 106065143A
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曹惠忠
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Abstract

本发明提供了一种PVDF汽车用电缆护套及其制备方法，包括以下重量份的组分：PVDF 80‑120份；邻苯二甲酸二丁酯（DBP）8‑12份；复合稳定剂3‑6份；改性高岭土10‑20份；复合阻燃剂5‑10份；炭黑20‑30份；抗氧化剂2‑4份；UV吸收剂1‑3份。本发明制得的PVDF汽车用电缆护套具有很强的耐磨性和抗冲击性，良好的耐化学腐蚀性、耐热性、耐水解性，同时加工性能和电绝缘性能好的高韧性高折耐黄变性的汽车用电缆护套。

Description

一种PVDF汽车用电缆护套及其制备方法
技术领域
本发明属于电缆护套技术领域，具体涉及一种PVDF汽车用电缆护套及其制备方法。
背景技术
随着经济的飞速发展，电力电缆行业的成熟和快速发展，对电缆保护提出的更高要求，电缆护套是保护电线和电缆最常用的一种电绝缘材料。因为具有绝缘性能良好、化学稳定性高、不生锈、不老化、可适应苛刻环境而被广泛得以应用。近几年汽车电气火灾事故的频繁发生，电线电缆的阻燃问题引起世界各国的重视。普通的电缆在燃烧时会释放出大量的烟雾和有毒的、腐蚀性的气体严重损害人体健康和破坏环境。目前市场上的汽车电缆护套还普遍存在着耐磨性、抗冲击性差和护套易变黄等问题，导致其使用寿命短和质量性能差，无法满足市场需求。
PVDF，是指聚偏氟乙烯或者偏氟乙烯与其他少量含氟乙烯基单体的共聚物，它兼具氟树脂和通用树脂的特性，因其化学结构中以氟-碳化合键结合，这种具有短键性质的结构与氢离子形成最稳定最牢固的结合，具有特异的物理化学性能，不但有很强的耐磨性和抗冲击性能，良好的耐化学腐蚀性、耐高温性、耐氧化性、耐候性、耐老化性、耐射线辐射性能，还具有压电性、介电性、热电性等特殊性能。但是其主要缺点在于导体易黄变。因此，急需开发一种新的汽车电缆护套，以提高汽车电线电缆的耐磨性、抗冲击性和耐热性能。
发明内容
本发明的目的在于，提供一种具有很强的耐磨性和抗冲击性，良好的耐化学腐蚀性、耐热性、耐水解性，同时加工性能和电绝缘性能好的高韧性高折耐黄变性PVDF汽车用电缆护套及其制备方法。
为解决上述技术问题，实现上述目的，本发明的技术方案如下：
一种PVDF汽车用电缆护套，包括以下重量份的组分：PVDF 80-120份；邻苯二甲酸二丁酯(DBP)8-12份；复合稳定剂3-6份；改性高岭土10-20份；复合阻燃剂5-10份；炭黑20-30份；抗氧化剂2-4份；UV吸收剂1-3份。
优选的，所述的复合稳定剂为钙锌复合稳定剂。
优选的，所述的改性高岭土为1500目，改性高岭土中二氧化硅含量为10％。
优选的，所述的复合阻燃剂为Mg(OH)2和MgCO3的复合消烟阻燃剂。
优选的，所述的抗氧化剂为抗氧化剂BTH、抗氧化剂1010、抗氧化剂168中的一种或多种。
优选的，所述的UV吸收剂为UV531。
一种PVDF汽车用电缆护套，其制备方法包括以下步骤：
(1)按重量份计，将PVDF 80-120份；邻苯二甲酸二丁酯(DBP)8-12份放入密炼机中混炼得到预混料，密炼温度为94-100℃，密炼时间为12-18min；
(2)向密炼机中加入复合稳定剂3-6份；改性高岭土10-20份；复合阻燃剂5-10份；炭黑20-30份；抗氧化剂2-4份；UV吸收剂1-3份，在温度为102-110℃下密炼6-10min，得到混炼物料；
(3)将步骤(2)得到的混炼胶置于开炼机中薄通7次，再由延压机延压成型，即得到所需的PVDF汽车用电缆护套。
本发明的有益效果如下：通过PVDF与邻苯二甲酸二丁酯(DBP)共混改性，提高耐热性，制得的护套具有很强的耐磨性和抗冲击性，良好的耐化学腐蚀性；同时改性高岭土的疏水性好，不仅可以提高电缆护套的机械性能，还可以改善或提高电缆护套的电绝缘性能，尤其是在潮湿环境下的电绝缘性能。
具体实施方式
下面通过具体实施例对本发明做进一步的说明，但实施例并不限制本发明的保护范围。
实施例1
一种PVDF汽车用电缆护套，包括以下重量份的组分：PVDF 80份；邻苯二甲酸二丁酯(DBP)8份；钙锌复合稳定剂3份；改性高岭土10份；Mg(OH)2和MgCO3的复合消烟阻燃剂5份；炭黑20份；抗氧化剂BTH 2份；UV531吸收剂1份。
制备方法包括以下步骤：
(1)按重量份计，将PVDF 80份；邻苯二甲酸二丁酯(DBP)8份放入密炼机中混炼得到预混料，密炼温度为94℃，密炼时间为12min；
(2)向密炼机中加入钙锌复合稳定剂3份；改性高岭土10份；Mg(OH)2和MgCO3的复合消烟阻燃剂5份；炭黑20份；抗氧化剂BTH 2份；UV531吸收剂1份，在温度为102℃下密炼6min，得到混炼物料；
(3)将步骤(2)得到的混炼胶置于开炼机中薄通7次，再由延压机延压成型，即得到所需的PVDF汽车用电缆护套。
实施例2
一种PVDF汽车用电缆护套，包括以下重量份的组分：PVDF 120份；邻苯二甲酸二丁酯(DBP)12份；钙锌复合稳定剂6份；改性高岭土20份；Mg(OH)2和MgCO3的复合消烟阻燃剂10份；炭黑30份；抗氧化剂1010 4份；UV531吸收剂3份。
制备方法包括以下步骤：
(1)按重量份计，将PVDF 120份；邻苯二甲酸二丁酯(DBP)12份放入密炼机中混炼得到预混料，密炼温度为100℃，密炼时间为18min；
(2)向密炼机中加入钙锌复合稳定剂6份；改性高岭土20份；Mg(OH)2和MgCO3的复合消烟阻燃剂10份；炭黑30份；抗氧化剂1010 4份；UV531吸收剂3份，在温度为110℃下密炼10min，得到混炼物料；
(3)将步骤(2)得到的混炼胶置于开炼机中薄通7次，再由延压机延压成型，即得到所需的PVDF汽车用电缆护套。
实施例3
一种PVDF汽车用电缆护套，包括以下重量份的组分：PVDF 100份；邻苯二甲酸二丁酯(DBP)10份；钙锌复合稳定剂5份；改性高岭土15份；Mg(OH)2和MgCO3的复合消烟阻燃剂8份；炭黑25份；抗氧化剂1010、抗氧化剂168中复合抗氧化剂3份；UV531吸收剂2份。
制备方法包括以下步骤：
(1)按重量份计，将PVDF 100份；邻苯二甲酸二丁酯(DBP)10份放入密炼机中混炼得到预混料，密炼温度为98℃，密炼时间为15min；
(2)向密炼机中加入钙锌复合稳定剂5份；改性高岭土15份；Mg(OH)2和MgCO3的复合消烟阻燃剂8份；炭黑25份；抗氧化剂1010、抗氧化剂168中复合抗氧化剂3份；UV531吸收剂2份，在温度为105℃下密炼8min，得到混炼物料；
(3)将步骤(2)得到的混炼胶置于开炼机中薄通7次，再由延压机延压成型，即得到所需的PVDF汽车用电缆护套。
实施例4
一种PVDF汽车用电缆护套，包括以下重量份的组分：PVDF 120份；邻苯二甲酸二丁酯(DBP)12份；钙锌复合稳定剂3份；改性高岭土10份；Mg(OH)2和MgCO3的复合消烟阻燃剂5份；炭黑20份；抗氧化剂BTH、抗氧化剂1010复合抗氧化剂2份；UV531吸收剂1份。
制备方法包括以下步骤：
(1)按重量份计，将PVDF 120份；邻苯二甲酸二丁酯(DBP)12份放入密炼机中混炼得到预混料，密炼温度为98℃，密炼时间为15min；
(2)向密炼机中加入钙锌复合稳定剂3份；改性高岭土10份；Mg(OH)2和MgCO3的复合消烟阻燃剂5份；炭黑20份；抗氧化剂BTH、抗氧化剂1010复合抗氧化剂2份；UV531吸收剂1份，在温度为105℃下密炼8min，得到混炼物料；
(3)将步骤(2)得到的混炼胶置于开炼机中薄通7次，再由延压机延压成型，即得到所需的PVDF汽车用电缆护套。
实施例5
一种PVDF汽车用电缆护套，包括以下重量份的组分：PVDF 80份；邻苯二甲酸二丁酯(DBP)8份；钙锌复合稳定剂6份；改性高岭土20份；Mg(OH)2和MgCO3的复合消烟阻燃剂10份；炭黑30份；抗氧化剂1010、抗氧化剂168复合抗氧化剂4份；UV531吸收剂3份。
制备方法包括以下步骤：
(1)按重量份计，将PVDF 80份；邻苯二甲酸二丁酯(DBP)8份放入密炼机中混炼得到预混料，密炼温度为98℃，密炼时间为15min；
(2)向密炼机中加入钙锌复合稳定剂6份；改性高岭土20份；Mg(OH)2和MgCO3的复合消烟阻燃剂10份；炭黑30份；抗氧化剂1010、抗氧化剂168复合抗氧化剂4份；UV531吸收剂3份，在温度为105℃下密炼8min，得到混炼物料；
(3)将步骤(2)得到的混炼胶置于开炼机中薄通7次，再由延压机延压成型，即得到所需的PVDF汽车用电缆护套。
上述实施例制得的PVDF汽车用电缆护套的性能测试结果如下表：
需要说明的是，以上实施例仅用以说明本发明的技术方案而非限制。尽管参照较佳实施例对本发明进行了详细说明，本领域的普通技术人员应当理解，可以对发明的技术方案进行修改或者等同替换，而不脱离本发明技术方案的范围，其均应涵盖在本发明的权利要求范围中。

Claims (7)

1. 一种PVDF汽车用电缆护套，其特征在于，包括以下重量份的组分：PVDF 80-120份；邻苯二甲酸二丁酯（DBP）8-12份；复合稳定剂3-6份；改性高岭土10-20份；复合阻燃剂5-10份；炭黑20-30份；抗氧化剂2-4份；UV吸收剂1-3份。
2.如权利要求1所述的一种PVDF汽车用电缆护套，其特征在于，所述的复合稳定剂为钙锌复合稳定剂。
3.如权利要求1所述的一种PVDF汽车用电缆护套，其特征在于，所述的改性高岭土为1500目，改性高岭土中二氧化硅含量为10%。
4.如权利要求1所述的一种PVDF汽车用电缆护套，其特征在于，所述的复合阻燃剂为Mg(OH)2和MgCO3的复合消烟阻燃剂。
5.如权利要求1所述的一种PVDF汽车用电缆护套，其特征在于，所述的抗氧化剂为抗氧化剂BTH、抗氧化剂1010、抗氧化剂168中的一种或多种。
6.如权利要求1所述的一种PVDF汽车用电缆护套，其特征在于，所述的UV吸收剂为UV531。
7.一种如权利要求1所述的PVDF汽车用电缆护套的制备方法，其特征在于，包括以下步骤：
（1）按重量份计，将PVDF 80-120份；邻苯二甲酸二丁酯（DBP）8-12份放入密炼机中混炼得到预混料，密炼温度为94-100℃，密炼时间为12-18min；
（2）向密炼机中加入复合稳定剂3-6份；改性高岭土10-20份；复合阻燃剂5-10份；炭黑20-30份；抗氧化剂2-4份；UV吸收剂1-3份，在温度为102-110℃下密炼6-10min，得到混炼物料；
（3）将步骤（2）得到的混炼胶置于开炼机中薄通7次，再由延压机延压成型，即得到所需的PVDF汽车用电缆护套。
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6054538A (en) * 1994-10-24 2000-04-25 Solvay, S.A. Compositions based on vinylidene fluoride copolymers including polyvinyl chloride and their use in cable manufacture
JP2006104395A (ja) * 2004-10-08 2006-04-20 Sumitomo Electric Fine Polymer Inc 樹脂組成物、並びにそれを用いる絶縁電線、電線ケーブル、チューブ及び熱収縮チューブ
CN105440460A (zh) * 2015-12-30 2016-03-30 合肥星辰电线电缆股份有限公司 一种橡胶电缆护套的制备工艺

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6054538A (en) * 1994-10-24 2000-04-25 Solvay, S.A. Compositions based on vinylidene fluoride copolymers including polyvinyl chloride and their use in cable manufacture
JP2006104395A (ja) * 2004-10-08 2006-04-20 Sumitomo Electric Fine Polymer Inc 樹脂組成物、並びにそれを用いる絶縁電線、電線ケーブル、チューブ及び熱収縮チューブ
CN105440460A (zh) * 2015-12-30 2016-03-30 合肥星辰电线电缆股份有限公司 一种橡胶电缆护套的制备工艺

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