CN103881207A - 一种抗开裂高密度聚乙烯电缆料及其制备方法 - Google Patents
一种抗开裂高密度聚乙烯电缆料及其制备方法 Download PDFInfo
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Abstract
本发明公开了一种抗开裂高密度聚乙烯电缆料及其制备方法,其由下列重量份的原料制成:高密度聚乙烯50-70、乙烯-醋酸乙烯共聚物20-30、乙烯-四氟乙烯共聚物15-20、甲基丙烯酸甲酯-丙烯腈-丁二烯-苯乙烯共聚物10-15、乙烯-醋酸乙烯共聚物接枝马来酸酐5-10、氢氧化镁10-15、红磷5-10、硼酸锌4-6、乙撑双硬脂酰胺3-5、硬脂酸钙2-3、活性氧化铝10-15、过氧化二异丙苯2-4、二月桂酸二正丁基锡1-2、环氧大豆油15-20、纳米硅灰石10-15、重钙粉5-10、碱式硫酸镁晶须4-8、抗氧剂10351-2、抗氧剂DSTP1-2、复合填料3-6。本发明电缆料抗开裂性能优异,力学性能好,耐高低温性好,在-50℃-130℃工作环境中能够长期工作不开裂,弯曲性能良好,能承受各种曲折,经久耐用,应用前景广阔。
Description
技术领域
本发明涉及一种电缆料及其制备方法,具体涉及一种抗开裂高密度聚乙烯电缆料及其制备方法。
背景技术
近年来,随着我国电信网络、城市轨道交通、铁路、楼宇建设等工程的大力发展,电线电缆的需求量急剧上升,促使电缆料的使用量迅速增长。虽然随着该材料技术的不断改进,电缆料的各项性能已有了很大的提升,但是一直困扰着业界的电缆护套易开裂的问题却始终未能解决。业界普遍认为电缆弯曲受力和受热受冷是导致上述问题的原因,为了使业界不再受电缆护套开裂问题的困扰,必须研发一种抗开裂性能优异的电缆料。
发明内容
本发明的目的在于针对现有技术的不足,提供一种综合性能优异的抗开裂高密度聚乙烯电缆料及其制备方法。
为实现上述目的,本发明采用的技术方案如下:
一种抗开裂高密度聚乙烯电缆料,由下列重量份的原料制成:高密度聚乙烯50-70、乙烯-醋酸乙烯共聚物20-30、乙烯-四氟乙烯共聚物15-20、甲基丙烯酸甲酯-丙烯腈-丁二烯-苯乙烯共聚物10-15、乙烯-醋酸乙烯共聚物接枝马来酸酐5-10、氢氧化镁10-15、红磷5-10、硼酸锌4-6、乙撑双硬脂酰胺3-5、硬脂酸钙2-3、活性氧化铝10-15、过氧化二异丙苯2-4、二月桂酸二正丁基锡1-2、环氧大豆油15-20、纳米硅灰石10-15、重钙粉5-10、碱式硫酸镁晶须4-8、抗氧剂10351-2、抗氧剂DSTP1-2、复合填料3-6;
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。
一种抗开裂高密度聚乙烯电缆料的制备方法,包括以下步骤:
(1)将高密度聚乙烯、乙烯-醋酸乙烯共聚物、乙烯-四氟乙烯共聚物、甲基丙烯酸甲酯-丙烯腈-丁二烯-苯乙烯共聚物和乙烯-醋酸乙烯共聚物接枝马来酸酐投入到捏合机内,捏合3-5min,然后加入氢氧化镁、红磷、硼酸锌、乙撑双硬脂酰胺、活性氧化铝和环氧大豆油,捏合2-4min,待料温升至75-85℃,再加入余下原料,捏合4-6min,待料温升至90-100℃时,将料卸到冷却混合机中冷却,降温至45℃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165-175℃、2区170-180℃、3区185-195℃、4区175-185℃,机头180-190℃;挤出机螺杆转速30-40r/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:
本发明电缆料抗开裂性能优异,力学性能好,耐高低温性好,在-50℃-130℃工作环境中能够长期工作不开裂,弯曲性能良好,能承受各种曲折,经久耐用,应用前景广阔。
具体实施方式
一种抗开裂高密度聚乙烯电缆料,由下列重量(kg)的原料制成:高密度聚乙烯60、乙烯-醋酸乙烯共聚物25、乙烯-四氟乙烯共聚物15、甲基丙烯酸甲酯-丙烯腈-丁二烯-苯乙烯共聚物10、乙烯-醋酸乙烯共聚物接枝马来酸酐8、氢氧化镁12、红磷7、硼酸锌5、乙撑双硬脂酰胺4、硬脂酸钙2、活性氧化铝15、过氧化二异丙苯3、二月桂酸二正丁基锡1.5、环氧大豆油15、纳米硅灰石15、重钙粉8、碱式硫酸镁晶须6、抗氧剂10351、抗氧剂DSTP2、复合填料5;
所述复合填料的制备方法如下:a.按重量比5:3:1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2.5%的乳化剂OP-15、1.5%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0.8%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30kHz,超声功率为300W,过滤,烘干,c、步骤b制得的烘干物中加入5%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,1000rpm高速搅拌5min,烘干,粉碎,过300目筛即可。
一种抗开裂高密度聚乙烯电缆料的制备方法,包括以下步骤:
(1)将高密度聚乙烯、乙烯-醋酸乙烯共聚物、乙烯-四氟乙烯共聚物、甲基丙烯酸甲酯-丙烯腈-丁二烯-苯乙烯共聚物和乙烯-醋酸乙烯共聚物接枝马来酸酐投入到捏合机内,捏合4min,然后加入氢氧化镁、红磷、硼酸锌、乙撑双硬脂酰胺、活性氧化铝和环氧大豆油,捏合3min,待料温升至80℃,再加入余下原料,捏合5min,待料温升至95℃时,将料卸到冷却混合机中冷却,降温至45℃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170℃、2区175℃、3区190℃、4区180℃,机头185℃;挤出机螺杆转速35r/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:
Claims (2)
1.一种抗开裂高密度聚乙烯电缆料,其特征在于,由下列重量份的原料制成:高密度聚乙烯50-70、乙烯-醋酸乙烯共聚物20-30、乙烯-四氟乙烯共聚物15-20、甲基丙烯酸甲酯-丙烯腈-丁二烯-苯乙烯共聚物10-15、乙烯-醋酸乙烯共聚物接枝马来酸酐5-10、氢氧化镁10-15、红磷5-10、硼酸锌4-6、乙撑双硬脂酰胺3-5、硬脂酸钙2-3、活性氧化铝10-15、过氧化二异丙苯2-4、二月桂酸二正丁基锡1-2、环氧大豆油15-20、纳米硅灰石10-15、重钙粉5-10、碱式硫酸镁晶须4-8、抗氧剂1035 1-2、抗氧剂DSTP 1-2、复合填料 3-6;
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所述的抗开裂高密度聚乙烯电缆料的制备方法,其特征在于包括以下步骤:
(1)将高密度聚乙烯、乙烯-醋酸乙烯共聚物、乙烯-四氟乙烯共聚物、甲基丙烯酸甲酯-丙烯腈-丁二烯-苯乙烯共聚物和乙烯-醋酸乙烯共聚物接枝马来酸酐投入到捏合机内,捏合3-5min,然后加入氢氧化镁、红磷、硼酸锌、乙撑双硬脂酰胺、活性氧化铝和环氧大豆油,捏合2-4min,待料温升至75-85℃,再加入余下原料,捏合4-6min,待料温升至90-100℃时,将料卸到冷却混合机中冷却,降温至45℃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165-175℃、2区170-180℃、3区185-195℃、4区175-185℃,机头180-190℃;挤出机螺杆转速30-40r/min;
(3)粒料经筛选磁选、计量后包装即为成品。
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