CN104761853A - 一种抗氧防老效果好的改性聚氯乙烯电缆料及其制备方法 - Google Patents

一种抗氧防老效果好的改性聚氯乙烯电缆料及其制备方法 Download PDF

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CN104761853A
CN104761853A CN201510142559.2A CN201510142559A CN104761853A CN 104761853 A CN104761853 A CN 104761853A CN 201510142559 A CN201510142559 A CN 201510142559A CN 104761853 A CN104761853 A CN 104761853A
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李斌
陈向东
汪国靖
王值铭
余淼
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Abstract

本发明公开了一种抗氧防老效果好的改性聚氯乙烯电缆料，其特征在于，由下列重量份的原料制成：碳纳米管13-15、聚丙烯酸乙酯12-14、钛酸酯偶联剂TC-F1.2-1.3、阻燃剂DOPO 5-7、过氧化月桂酰0.03-0.04、聚氯乙烯树脂SG3 67-70、轻质碳酸钙10-12、富马酸二甲酯1-1.2、DBP 8-10、聚乙烯蜡2-3、硫代二丙酸双酯0.5-0.8、2，6-二叔丁基-4-甲基苯酚0.8-1.2、硬酯酸单甘油酯2-3、助剂7-9；本发明配方特殊，将碳纳米管基聚合物添加到电缆料中，提高了聚氯乙烯的抗静电性以及阻燃性；添加2，6-二叔丁基-4-甲基苯酚等，显著增强抗氧防老效果。

Description

一种抗氧防老效果好的改性聚氯乙烯电缆料及其制备方法
技术领域
本发明涉及电缆材料领域，特别是一种抗氧防老效果好的改性聚氯乙烯电缆料及其制备方法。
背景技术
普通聚氯乙烯护套成型工艺简单，但聚氯乙烯质地比较硬，而且不够耐磨，普遍存在收缩率大，抗氧化性能不好，容易老化，因此通常只能用作固定非移动场合电线、电缆护套。
碳纳米管是目前可制备出的具有最高比强度的材料。若将以其他工程材料为基体与碳纳米管制成复合材料，可使复合材料表现出良好的强度、弹性、抗疲劳性，为复合材料的性能带来极大的改善；碳纳米管的硬度与金刚石相当，却拥有良好的柔韧性，可以拉伸；碳纳米管具有良好的导电性能，由于碳纳米管的结构与石墨的片层结构相同，所以具有很好的电学性能。
本发明首先通过特殊工艺将碳纳米管与聚合物反应后加入到电缆料的制造中，碳纳米管具有一定的导电性，能够防止电缆料表面静电的产生；配合硫代二丙酸双酯、2，6-二叔丁基-4-甲基苯酚等抗氧剂，具有协同抗氧化的作用，防止产品老化，延长使用寿命，具有良好的机械性能。
该复合物具有良好的阻燃性能和良好的韧性，断裂伸长率大于200％，特别适合于电线电缆、电子电气、家装及汽车工业等对阻燃有严格要求的领域中使用。
发明内容
本发明的目的是提供一种抗氧防老效果好的改性聚氯乙烯电缆料及其制备方法。
为了实现本发明的目的，本发明通过以下方案实施：
一种抗氧防老效果好的改性聚氯乙烯电缆料，由下列重量份的原料制成：碳纳米管13-15、聚丙烯酸乙酯12-14、钛酸酯偶联剂TC-F1.2-1.3、阻燃剂DOPO5-7、过氧化月桂酰0.03-0.04、聚氯乙烯树脂SG3 67-70、轻质碳酸钙10-12、富马酸二甲酯1-1.2、DBP 8-10、聚乙烯蜡2-3、硫代二丙酸双酯0.5-0.8、2，6-二叔丁基-4-甲基苯酚0.8-1.2、硬酯酸单甘油酯2-3、助剂7-9；
所述的助剂包含以下重量份的原料：聚甲基丙烯酸丁酯5-7、碳酸钙3-4、木粉4-6、堇青石粉2-3、石蜡油6-8、钙锌稳定剂C8-309 2-3、电木粉4.5-6、吗啉1-2、邻羟基肉桂酸1-2、米糠蜡2-3、衣康酸单丁酯4-6；制备方法是将碳酸钙、木粉、堇青石粉放入石蜡油中研磨2-3小时制成混合物；然后将聚甲基丙烯酸丁酯、米糠蜡、衣康酸单丁酯混合，控制温度在70℃-80℃搅拌反应60-90分钟，再加入其余剩余成分，降温至40℃-50℃，反应2-3小时，最后加入混合物，升温至80℃-100℃，搅拌反应20-30分钟即得。
本发明所述一种抗氧防老效果好的改性聚氯乙烯电缆料，由以下具体步骤制成：
(1)将聚丙烯酸乙酯、过氧化月桂酰、钛酸酯偶联剂TC-F混合，放在90℃-95℃的水浴中边搅拌边加热，直到具有一定粘性时停止加热，冷却至室温，加入碳纳米管、阻燃剂DOPO，搅拌均匀，然后控制温度在50℃-65℃，保持3-4小时，然后继续升温至90℃-100℃，保温90-120分钟得到碳纳米管聚合物母料A；
(2)将聚氯乙烯树脂SG3加热至熔融，然后加入除助剂之外的其余剩余成分混合均匀，搅拌10-15分钟，送入双螺杆挤出机上挤出造粒，得到B料；
(3)将A料、B料、助剂加入到高混机中，温度控制位110℃-120℃混合8-10分钟，然后通过双螺杆挤出机造粒，冷却干燥即得本发明电缆料。
本发明的优异效果是：本发明配方合理，工艺特殊，将碳纳米管基聚合物添加到电缆料中，提高了聚氯乙烯的抗静电性以及阻燃性；添加2，6-二叔丁基-4-甲基苯酚等，显著增强抗氧防老效果；添加助剂，增加了产品的耐磨性以及柔韧性，加工流动性好，分散好；本发明产品产品具有良好的可加工性，经久耐用。
具体实施方式
下面通过具体实例对本发明进行详细说明。
一种抗氧防老效果好的改性聚氯乙烯电缆料，由下列重量份(公斤)的原料制成：碳纳米管13、聚丙烯酸乙酯12、钛酸酯偶联剂TC-F1.2、阻燃剂DOPO 5、过氧化月桂酰0.03、聚氯乙烯树脂SG3 67、轻质碳酸钙10、富马酸二甲酯1、DBP 8、聚乙烯蜡2、硫代二丙酸双酯0.5、2，6-二叔丁基-4-甲基苯酚0.8、硬酯酸单甘油酯2、助剂7；
所述的助剂包含以下重量份(公斤)的原料：聚甲基丙烯酸丁酯5、碳酸钙3、木粉4、堇青石粉2、石蜡油6、钙锌稳定剂C8-309 2、电木粉4.5、吗啉1、邻羟基肉桂酸1、米糠蜡2、衣康酸单丁酯4；制备方法是将碳酸钙、木粉、堇青石粉放入石蜡油中研磨2-3小时制成混合物；然后将聚甲基丙烯酸丁酯、米糠蜡、衣康酸单丁酯混合，控制温度在70℃-80℃搅拌反应60-90分钟，再加入其余剩余成分，降温至40℃-50℃，反应2-3小时，最后加入混合物，升温至80℃-100℃，搅拌反应20-30分钟即得。
本发明所述一种抗氧防老效果好的改性聚氯乙烯电缆料，由以下具体步骤制成：
(1)将聚丙烯酸乙酯、过氧化月桂酰、钛酸酯偶联剂TC-F混合，放在90℃-95℃的水浴中边搅拌边加热，直到具有一定粘性时停止加热，冷却至室温，加入碳纳米管、阻燃剂DOPO，搅拌均匀，然后控制温度在50℃-65℃，保持3-4小时，然后继续升温至90℃-100℃，保温90-120分钟得到碳纳米管聚合物母料A；
(2)将聚氯乙烯树脂SG3加热至熔融，然后加入除助剂之外的其余剩余成分混合均匀，搅拌10-15分钟，送入双螺杆挤出机上挤出造粒，得到B料；
(3)将A料、B料、助剂加入到高混机中，温度控制位110℃-120℃混合8-10分钟，然后通过双螺杆挤出机造粒，冷却干燥即得本发明电缆料。
通过与普通聚氯乙烯电缆料的性能做对比，可以看出本发明电缆料优于普通聚氯乙烯电缆料的性能，值得推广。
性能指标 普通聚氯乙烯电缆料 本发明电缆料
抗张强度 〉10MPa 〉18MPa
老化后抗张强度(158℃，168h) 〉6.5MPa 〉12.5MPa
伸长率 〉100％ 〉300％
老化后伸长率(158℃，168h) 〉70％ 〉250％
氧指数 ≥26％ ≥28％
20℃时表面电阻(Ω) 5.0×1012 8.2×108
冷弯 -10±2℃，4h，不开裂 -20±2℃，4h，不开裂

Claims (2)

1.一种抗氧防老效果好的改性聚氯乙烯电缆料，其特征在于，由下列重量份的原料制成：碳纳米管13-15、聚丙烯酸乙酯12-14、钛酸酯偶联剂TC-F1.2-1.3、阻燃剂DOPO 5-7、过氧化月桂酰0.03-0.04、聚氯乙烯树脂 SG3 67-70、轻质碳酸钙10-12、富马酸二甲酯1-1.2、DBP 8-10、聚乙烯蜡2-3、硫代二丙酸双酯0.5-0.8、2，6-二叔丁基-4-甲基苯酚0.8-1.2、硬酯酸单甘油酯2-3、助剂7-9；
所述的助剂包含以下重量份的原料：聚甲基丙烯酸丁酯5-7、碳酸钙3-4、木粉4-6、堇青石粉2-3、石蜡油6-8、钙锌稳定剂 C8-309 2-3、电木粉4.5-6、吗啉1-2、邻羟基肉桂酸1-2、米糠蜡2-3、衣康酸单丁酯4-6；制备方法是将碳酸钙、木粉、堇青石粉放入石蜡油中研磨2-3小时制成混合物；然后将聚甲基丙烯酸丁酯、米糠蜡、衣康酸单丁酯混合，控制温度在70℃-80℃搅拌反应60-90分钟，再加入其余剩余成分，降温至40℃-50℃，反应2-3小时，最后加入混合物，升温至80℃-100℃，搅拌反应20-30分钟即得。
2.根据权利要求1所述一种抗氧防老效果好的改性聚氯乙烯电缆料，其特征在于，由以下具体步骤制成：
（1）将聚丙烯酸乙酯、过氧化月桂酰、钛酸酯偶联剂TC-F混合，放在90℃-95℃的水浴中边搅拌边加热，直到具有一定粘性时停止加热，冷却至室温，加入碳纳米管、阻燃剂DOPO，搅拌均匀，然后控制温度在50℃-65℃，保持3-4小时，然后继续升温至90℃-100℃，保温90-120分钟得到碳纳米管聚合物母料A；
（2）将聚氯乙烯树脂 SG3加热至熔融，然后加入除助剂之外的其余剩余成分混合均匀，搅拌10-15分钟，送入双螺杆挤出机上挤出造粒，得到B料；
（3）将A料、B料、助剂加入到高混机中，温度控制位110℃-120℃混合8-10分钟，然后通过双螺杆挤出机造粒，冷却干燥即得本发明电缆料。
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