CN103881360A - 一种热塑性聚氨酯弹性体电缆护套料及其制备方法 - Google Patents

一种热塑性聚氨酯弹性体电缆护套料及其制备方法 Download PDF

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CN103881360A
CN103881360A CN201410052311.2A CN201410052311A CN103881360A CN 103881360 A CN103881360 A CN 103881360A CN 201410052311 A CN201410052311 A CN 201410052311A CN 103881360 A CN103881360 A CN 103881360A
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thermoplastic polyurethane
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周小刚
储刘生
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ANHUI WANGDA COPPER INDUSTRY DEVELOPMENT Co Ltd
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Abstract

本发明公开了一种热塑性聚氨酯弹性体电缆护套料及其制备方法,其由下列重量份的原料制成:热塑性聚氨酯弹性体50-70、丙烯腈-苯乙烯-丙烯酸酯共聚物20-30、聚甲醛10-15、烟片胶10-15、纳米氮化硼5-10、磷酸三聚氰胺硼酸盐12-16、三氧化二锑8-14、包覆红磷5-10、钛白粉10-15、纳米萤石10-15、有机膨润土5-10、乙炔炭黑20-30、抗氧剂10101-2、抗氧剂DLTP1-2、硬脂酸镁2-3、硬脂酸锌1.5-2.5、氧化锌2-3、硬脂酸1-2、环氧四氢邻苯二甲酸二辛酯10-15、偏苯三酸三甘油酯5-10、复合填料3-5。本发明电缆料综合性能优异,具有优异的耐磨性、阻燃性、耐油性、耐高低温性、柔韧性和抗撕裂性,同时具有优良的加工性能和电绝缘性能,经久耐用,应用前景广阔。

Description

一种热塑性聚氨酯弹性体电缆护套料及其制备方法
技术领域
本发明涉及一种电缆料及其制备方法,具体涉及一种热塑性聚氨酯弹性体电缆护套料及其制备方法。
背景技术
目前,电线电缆的护套材料主要有PE、PVC、各种合成橡胶等。但这些普通的护套材料由于较差的耐磨性、耐寒性、柔韧性、耐各类油脂及溶剂的侵蚀以及耐电子辐照等缺点,无法满足用于各种恶劣的环境中的矿用、油井用、核电站用、舰船用以及一些军用野战电缆。因此,必须选用新的高分子聚合材料作基料再其它助剂进行混炼改性加工制成电缆护套料,以满足上述场合的使用要求。
发明内容
本发明的目的在于提供一种在恶劣环境下具有优异的阻燃性、耐磨性、耐油性、耐高低温性、耐老化性、抗撕裂性、柔韧性的热塑性聚氨酯弹性体电缆护套料及其制备方法。
为实现上述目的,本发明采用的技术方案如下:
一种热塑性聚氨酯弹性体电缆护套料,由下列重量份的原料制成:热塑性聚氨酯弹性体50-70、丙烯腈-苯乙烯-丙烯酸酯共聚物20-30、聚甲醛10-15、烟片胶10-15、纳米氮化硼5-10、磷酸三聚氰胺硼酸盐12-16、三氧化二锑8-14、包覆红磷5-10、钛白粉10-15、纳米萤石10-15、有机膨润土5-10、乙炔炭黑20-30、抗氧剂10101-2、抗氧剂DLTP1-2、硬脂酸镁2-3、硬脂酸锌1.5-2.5、氧化锌2-3、硬脂酸1-2、环氧四氢邻苯二甲酸二辛酯10-15、偏苯三酸三甘油酯5-10、复合填料3-5;
所述复合填料的制备方法如下:a.按重量比4-6:2-3:1称取橄榄石、蓝晶石、铝矾土混合均匀,880-940℃下煅烧1-2h,冷却至室温,然后加入到浓度为15-20%的盐酸溶液中,在70-80℃水浴温度下保温0.5-1h,过滤,滤渣用蒸馏水洗涤至中性,烘干,粉碎,过150-200目筛,待用;b、取相当于橄榄石重量3-5倍的浓度为10-15%乙醇溶液,加入步骤a制得的粉末,2000-3000rpm高速研磨15-20min,然后再加入悬浮液重量2-3%的乳化剂OP-15、1-2%甲基丙烯酰氧基丙基三甲氧基硅烷、5-10%的固含量为50%的硅丙乳液和0.5-1%的十二碳醇酯,搅拌均匀后超声振荡至悬浮液中粉末颗粒充分分散,超声波频率为20-30kHz,超声功率为300-400W,过滤,烘干,c、步骤b制得的烘干物中加入3-6%的烟道灰、2-4%的砭石粉和1-2%的异丙基三(二辛基焦磷酸酰氧基)钛酸酯,1000-1500rpm高速搅拌3-5min,烘干,粉碎,过200-300目筛即可。
一种热塑性聚氨酯弹性体电缆护套料的制备方法,包括以下步骤:
(1)将热塑性聚氨酯弹性体、丙烯腈-苯乙烯-丙烯酸酯共聚物、聚甲醛和烟片胶投入到捏合机内,捏合2-4min,然后加入氧化锌、硬脂酸、环氧四氢邻苯二甲酸二辛酯、偏苯三酸三甘油酯、纳米氮化硼、磷酸三聚氰胺硼酸盐、三氧化二锑和包覆红磷,捏合3-5min,待料温升至80-90℃,再加入余下原料,捏合4-6min,待料温升至100-110℃时,将料卸到冷却混合机中冷却,降温至50℃以下时出料;
(2)将上述混料投入双螺杆挤出机中挤出造粒,双螺杆挤出机各区的加工温度分别为:1区135-155℃、2区150-170℃、3区170-190℃、4区165-185℃,机头175-195℃;挤出机螺杆转速35-45r/min;
(3)粒料经筛选磁选、计量后包装即为成品。
本发明的有益效果:
本发明电缆料综合性能优异,具有优异的耐磨性、阻燃性、耐油性、耐高低温性、柔韧性和抗撕裂性,同时具有优良的加工性能和电绝缘性能,可广泛应用在要求柔软、耐磨、耐寒、耐油等的矿用、油井用、核电站用、舰船用以及军用野战电缆,经久耐用,应用前景广阔。
具体实施方式
一种热塑性聚氨酯弹性体电缆护套料,由下列重量(kg)的原料制成:热塑性聚氨酯弹性体60、丙烯腈-苯乙烯-丙烯酸酯共聚物30、聚甲醛10、烟片胶10-、纳米氮化硼7、磷酸三聚氰胺硼酸盐14、三氧化二锑12、包覆红磷8、钛白粉15、纳米萤石10、有机膨润土8、乙炔炭黑25、抗氧剂10101.5、抗氧剂DLTP1、硬脂酸镁2、硬脂酸锌2、氧化锌3、硬脂酸1、环氧四氢邻苯二甲酸二辛酯10、偏苯三酸三甘油酯10、复合填料4;
所述复合填料的制备方法如下:a.按重量比4:3:1称取橄榄石、蓝晶石、铝矾土混合均匀,940℃下煅烧1h,冷却至室温,然后加入到浓度为20%的盐酸溶液中,在70℃水浴温度下保温1h,过滤,滤渣用蒸馏水洗涤至中性,烘干,粉碎,过200目筛,待用;b、取相当于橄榄石重量4倍的浓度为10%乙醇溶液,加入步骤a制得的粉末,3000rpm高速研磨15min,然后再加入悬浮液重量2%的乳化剂OP-15、1%甲基丙烯酰氧基丙基三甲氧基硅烷、7%的固含量为50%的硅丙乳液和0.5%的十二碳醇酯,搅拌均匀后超声振荡至悬浮液中粉末颗粒充分分散,超声波频率为20kHz,超声功率为300W,过滤,烘干,c、步骤b制得的烘干物中加入4%的烟道灰、3%的砭石粉和1.5%的异丙基三(二辛基焦磷酸酰氧基)钛酸酯,1500rpm高速搅拌4min,烘干,粉碎,过300目筛即可。
一种热塑性聚氨酯弹性体电缆护套料的制备方法,包括以下步骤:
(1)将热塑性聚氨酯弹性体、丙烯腈-苯乙烯-丙烯酸酯共聚物、聚甲醛和烟片胶投入到捏合机内,捏合3min,然后加入氧化锌、硬脂酸、环氧四氢邻苯二甲酸二辛酯、偏苯三酸三甘油酯、纳米氮化硼、磷酸三聚氰胺硼酸盐、三氧化二锑和包覆红磷,捏合4min,待料温升至90℃,再加入余下原料,捏合5min,待料温升至105℃时,将料卸到冷却混合机中冷却,降温至50℃以下时出料;
(2)将上述混料投入双螺杆挤出机中挤出造粒,双螺杆挤出机各区的加工温度分别为:1区145℃、2区160℃、3区180℃、4区175℃,机头185℃;挤出机螺杆转速40r/min;
(3)粒料经筛选磁选、计量后包装即为成品。
上述制得的电缆料的性能测试结果如下:
Figure BDA0000466159510000041

Claims (2)

1.一种热塑性聚氨酯弹性体电缆护套料,其特征在于,由下列重量份的原料制成:热塑性聚氨酯弹性体50-70、丙烯腈-苯乙烯-丙烯酸酯共聚物20-30、聚甲醛10-15、烟片胶10-15、纳米氮化硼5-10、磷酸三聚氰胺硼酸盐12-16、三氧化二锑8-14、包覆红磷5-10、钛白粉10-15、纳米萤石10-15、有机膨润土5-10、乙炔炭黑20-30、抗氧剂1010 1-2、抗氧剂DLTP 1-2、硬脂酸镁2-3、硬脂酸锌1.5-2.5、氧化锌2-3、硬脂酸1-2、环氧四氢邻苯二甲酸二辛酯10-15、偏苯三酸三甘油酯5-10、复合填料3-5;
所述复合填料的制备方法如下:a.按重量比4-6:2-3:1称取橄榄石、蓝晶石、铝矾土混合均匀,880-940℃下煅烧1-2h,冷却至室温,然后加入到浓度为15-20%的盐酸溶液中,在70-80℃水浴温度下保温0.5-1h,过滤,滤渣用蒸馏水洗涤至中性,烘干,粉碎,过150-200目筛,待用;b、取相当于橄榄石重量3-5倍的浓度为10-15%乙醇溶液,加入步骤a制得的粉末,2000-3000rpm高速研磨15-20min,然后再加入悬浮液重量2-3%的乳化剂OP-15、1-2%甲基丙烯酰氧基丙基三甲氧基硅烷、5-10%的固含量为50%的硅丙乳液和0.5-1%的十二碳醇酯,搅拌均匀后超声振荡至悬浮液中粉末颗粒充分分散,超声波频率为20-30 kHz,超声功率为300-400W,过滤,烘干,c、步骤b制得的烘干物中加入3-6%的烟道灰、2-4%的砭石粉和1-2%的异丙基三(二辛基焦磷酸酰氧基)钛酸酯,1000-1500rpm高速搅拌3-5min,烘干,粉碎,过200-300目筛即可。
2.根据权利要求1所述的热塑性聚氨酯弹性体电缆护套料的制备方法,其特征在于包括以下步骤:
(1)将热塑性聚氨酯弹性体、丙烯腈-苯乙烯-丙烯酸酯共聚物、聚甲醛和烟片胶投入到捏合机内,捏合2-4min,然后加入氧化锌、硬脂酸、环氧四氢邻苯二甲酸二辛酯、偏苯三酸三甘油酯、纳米氮化硼、磷酸三聚氰胺硼酸盐、三氧化二锑和包覆红磷,捏合3-5min,待料温升至80-90℃,再加入余下原料,捏合4-6min,待料温升至100-110℃时,将料卸到冷却混合机中冷却,降温至50℃以下时出料; 
(2)将上述混料投入双螺杆挤出机中挤出造粒,双螺杆挤出机各区的加工温度分别为:1区135-155℃、2区150-170℃、3区170-190℃、4区165-185℃,机头175-195℃;挤出机螺杆转速35-45r/min;
(3)粒料经筛选磁选、计量后包装即为成品。
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