CN106117736A - 一种户外用抗紫外线耐光老化聚乙烯电缆料及其制备方法 - Google Patents
一种户外用抗紫外线耐光老化聚乙烯电缆料及其制备方法 Download PDFInfo
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Abstract
本发明公开了一种户外用抗紫外线耐光老化聚乙烯电缆料及其制备方法,其由以下重量份的原料制成:聚乙烯50‑60、聚α‑甲基苯乙烯25‑40、酒石酸锑钾6‑11、烯烃改性苯乙烯‑丙烯腈共聚树脂20‑30、一缩丙二醇单水杨酸酯14‑18、石英砂尾矿17‑23、2‑丁基‑1,2‑苯并异噻唑啉‑3‑酮3‑5、甲酚曲唑三硅氧烷2‑4、气相二氧化钛10‑15、沸腾炉渣13‑19、硬脂酸甲酯5‑8、硬脂酸亚锡2‑4、海泡石10‑15、凡士林4‑7、邻羟基苯甲酸苯酯5‑10、甘油三苯甲酸酯4‑8、纳米钛酸钙15‑20。本发明制得的电缆料具有较好的抗紫外线能力和耐光老化能力,大大延长了电缆料的使用寿命。
Description
技术领域
本发明涉及一种电缆料及其制备方法,具体涉及一种户外用抗紫外线耐光老化聚乙烯电缆料及其制备方法。
背景技术
聚乙烯,简称PE,是乙烯经聚合制得的一种热塑性树脂。它无臭,无毒,手感似蜡,具有优良的耐低温性能(最低使用温度可达-100~-70℃),化学稳定性好,能耐大多数酸碱的侵蚀(不耐具有氧化性质的酸)。常温下不溶于一般溶剂,吸水性小,电绝缘性优良,可以广泛应用于制作电缆制品。随着电缆行业的快速发展,对聚乙烯电缆的性能有着越来越高的要求。然而现有的聚乙烯电缆料仍存在着抗紫外线性差和耐光老化性差的缺点,无法满足市场的要求。
发明内容
为了解决现有技术的不足,本发明目的在于提供一种户外用抗紫外线耐光老化聚乙烯电缆料及其制备方法。
为了实现上述目的,本发明采用如下的技术方案:
一种户外用抗紫外线耐光老化聚乙烯电缆料,由以下重量份的原料制成:聚乙烯50-60、聚α-甲基苯乙烯25-40、酒石酸锑钾6-11、烯烃改性苯乙烯-丙烯腈共聚树脂20-30、一缩丙二醇单水杨酸酯14-18、石英砂尾矿17-23、2-丁基-1,2-苯并异噻唑啉-3-酮3-5、甲酚曲唑三硅氧烷2-4、气相二氧化钛10-15、沸腾炉渣13-19、硬脂酸甲酯5-8、硬脂酸亚锡2-4、海泡石10-15、凡士林4-7、邻羟基苯甲酸苯酯5-10、甘油三苯甲酸酯4-8、纳米钛酸钙15-20。
一种户外用抗紫外线耐光老化聚乙烯电缆料的制备方法,包括以下步骤:
(1)将石英砂尾矿、沸腾炉渣、海泡石混合均匀,粉碎,过筛,然后加热熔化成熔融液,充分搅拌均匀后放入清水中进行水淬,烘干,粉碎,过筛,1500-2500r/min湿法球磨2-4h,烘干,然后利用流速为25-35L/min的氩气作为载流气体将烘干后的粉体按照加料速率为200-250g/min送入到氧气-乙炔焰流中,氧气-乙炔焰流中氧气流量为30-35L/min,乙炔流量为40-45L/min;当粉末经过高温火焰场时,粉末受热熔化,在表面张力的作用下形成液滴,同时通入流速为180-200L/min的氮气冲击液滴,使大粒径范围内的大液滴破碎分裂,形成小液滴,当它离开高温火焰场后立即进行冷却固化,收集,即得所需的粉体;
(2)将聚α-甲基苯乙烯、烯烃改性苯乙烯-丙烯腈共聚树脂、邻羟基苯甲酸苯酯加入到高速混合机内,2000-4000r/min高速搅拌至料温达到60-70℃时,加入酒石酸锑钾、凡士林、甲酚曲唑三硅氧烷以及步骤(1)制得的粉体,1500-3000r/min高速搅拌至料温达到70-80℃时,停止搅拌,待物料降温至40-50℃时,出料,即得所需的混合料;
(3)将聚乙烯、一缩丙二醇单水杨酸酯、硬脂酸甲酯、硬脂酸亚锡加入到开炼机内,控制辊温在65-85℃,辊距为1-2mm,混炼4-6min,再加入步骤(2)制得的混合料、甘油三苯甲酸酯、纳米钛酸钙等余下原料,控制辊温在75-95℃,辊距为3-4mm,混炼3-4min,然后将混炼好的物料转入双螺杆挤出机内熔融共混,挤出造粒,冷却,即得所需的电缆料。
本发明的有益效果:
本发明在聚乙烯中加入聚α-甲基苯乙烯和烯烃改性苯乙烯-丙烯腈共聚树脂,可提高电缆料的耐候性、耐热性和耐老化性,还加入了一缩丙二醇单水杨酸酯、2-丁基-1,2-苯并异噻唑啉-3-酮、甲酚曲唑三硅氧烷、气相二氧化钛、纳米钛酸钙等原料,可以显著提高电缆料的抗紫外线能力和耐光老化能力,大大延长了电缆料的使用寿命。
具体实施方式
一种户外用抗紫外线耐光老化聚乙烯电缆料,由以下重量(kg)的原料制成:聚乙烯55、聚α-甲基苯乙烯35、酒石酸锑钾9、烯烃改性苯乙烯-丙烯腈共聚树脂25、一缩丙二醇单水杨酸酯16、石英砂尾矿21、2-丁基-1,2-苯并异噻唑啉-3-酮4、甲酚曲唑三硅氧烷3、气相二氧化钛12、沸腾炉渣16、硬脂酸甲酯7、硬脂酸亚锡3、海泡石12、凡士林5、邻羟基苯甲酸苯酯8、甘油三苯甲酸酯6、纳米钛酸钙18。
一种户外用抗紫外线耐光老化聚乙烯电缆料的制备方法,包括以下步骤:
(1)将石英砂尾矿、沸腾炉渣、海泡石混合均匀,粉碎,过筛,然后加热熔化成熔融液,充分搅拌均匀后放入清水中进行水淬,烘干,粉碎,过筛,2000r/min湿法球磨3h,烘干,然后利用流速为30L/min的氩气作为载流气体将烘干后的粉体按照加料速率为230g/min送入到氧气-乙炔焰流中,氧气-乙炔焰流中氧气流量为32L/min,乙炔流量为44L/min;当粉末经过高温火焰场时,粉末受热熔化,在表面张力的作用下形成液滴,同时通入流速为195L/min的氮气冲击液滴,使大粒径范围内的大液滴破碎分裂,形成小液滴,当它离开高温火焰场后立即进行冷却固化,收集,即得所需的粉体;
(2)将聚α-甲基苯乙烯、烯烃改性苯乙烯-丙烯腈共聚树脂、邻羟基苯甲酸苯酯加入到高速混合机内,3000r/min高速搅拌至料温达到65℃时,加入酒石酸锑钾、凡士林、甲酚曲唑三硅氧烷以及步骤(1)制得的粉体,2500r/min高速搅拌至料温达到75℃时,停止搅拌,待物料降温至45℃时,出料,即得所需的混合料;
(3)将聚乙烯、一缩丙二醇单水杨酸酯、硬脂酸甲酯、硬脂酸亚锡加入到开炼机内,控制辊温在75℃,辊距为1.5mm,混炼5min,再加入步骤(2)制得的混合料、甘油三苯甲酸酯、纳米钛酸钙等余下原料,控制辊温在85℃,辊距为3mm,混炼3min,然后将混炼好的物料转入双螺杆挤出机内熔融共混,挤出造粒,冷却,即得所需的电缆料。
上述实施例制得的聚乙烯电缆料的主要性能检测结果如下表所示:
Claims (2)
1.一种户外用抗紫外线耐光老化聚乙烯电缆料,其特征在于,由以下重量份的原料制成:聚乙烯50-60、聚α-甲基苯乙烯25-40、酒石酸锑钾6-11、烯烃改性苯乙烯-丙烯腈共聚树脂20-30、一缩丙二醇单水杨酸酯14-18、石英砂尾矿17-23、2-丁基-1,2-苯并异噻唑啉-3-酮3-5、甲酚曲唑三硅氧烷2-4、气相二氧化钛10-15、沸腾炉渣13-19、硬脂酸甲酯5-8、硬脂酸亚锡2-4、海泡石10-15、凡士林4-7、邻羟基苯甲酸苯酯5-10、甘油三苯甲酸酯4-8、纳米钛酸钙15-20。
2.一种如权利要求1所述的户外用抗紫外线耐光老化聚乙烯电缆料的制备方法,其特征在于,包括以下步骤:
(1)将石英砂尾矿、沸腾炉渣、海泡石混合均匀,粉碎,过筛,然后加热熔化成熔融液,充分搅拌均匀后放入清水中进行水淬,烘干,粉碎,过筛,1500-2500r/min湿法球磨2-4h,烘干,然后利用流速为25-35L/min的氩气作为载流气体将烘干后的粉体按照加料速率为200-250g/min送入到氧气-乙炔焰流中,氧气-乙炔焰流中氧气流量为30-35L/min,乙炔流量为40-45L/min;当粉末经过高温火焰场时,粉末受热熔化,在表面张力的作用下形成液滴,同时通入流速为180-200L/min的氮气冲击液滴,使大粒径范围内的大液滴破碎分裂,形成小液滴,当它离开高温火焰场后立即进行冷却固化,收集,即得所需的粉体;
(2)将聚α-甲基苯乙烯、烯烃改性苯乙烯-丙烯腈共聚树脂、邻羟基苯甲酸苯酯加入到高速混合机内,2000-4000r/min高速搅拌至料温达到60-70℃时,加入酒石酸锑钾、凡士林、甲酚曲唑三硅氧烷以及步骤(1)制得的粉体,1500-3000r/min高速搅拌至料温达到70-80℃时,停止搅拌,待物料降温至40-50℃时,出料,即得所需的混合料;
(3)将聚乙烯、一缩丙二醇单水杨酸酯、硬脂酸甲酯、硬脂酸亚锡加入到开炼机内,控制辊温在65-85℃,辊距为1-2mm,混炼4-6min,再加入步骤(2)制得的混合料、甘油三苯甲酸酯、纳米钛酸钙等余下原料,控制辊温在75-95℃,辊距为3-4mm,混炼3-4min,然后将混炼好的物料转入双螺杆挤出机内熔融共混,挤出造粒,冷却,即得所需的电缆料。
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Application publication date: 20161116 |