CN107236211A - 电线电缆用无味聚氯乙烯组合物及制备方法 - Google Patents

电线电缆用无味聚氯乙烯组合物及制备方法 Download PDF

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CN107236211A
CN107236211A CN201710457429.7A CN201710457429A CN107236211A CN 107236211 A CN107236211 A CN 107236211A CN 201710457429 A CN201710457429 A CN 201710457429A CN 107236211 A CN107236211 A CN 107236211A
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张东清
朱花竹
袁宝
陆威
王建球
张翔
李谭
张坤
周玉梅
曹渊
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ANHUI CHUZHO DEWEI NEW MATERIAL Co Ltd
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Abstract

本发明公开了电线电缆用无味聚氯乙烯组合物,由下列重量份的组分原料制备而得:聚氯乙烯树脂80‑100份、碳酸钙20‑60份、聚酯可塑剂40‑80份、稀土稳定剂4‑6份、聚乙二醇2‑4份、水滑石1.4‑2.0份、硅溶胶4‑6份、引发剂0.2‑0.4份、硬脂酸钡0.4‑0.6份、乙烯醋酸乙烯酯11‑15份、碳化硅3‑5份、壳聚糖3.5‑4.5份、天青石4‑6份、煅烧高岭土9‑13份、阻燃剂1‑3份、去离子水适量。本发明所述组合物易于加工、价格低廉,且加工成型的电线电缆具有良好的耐化学性能和机械性能,改善了成型电线电缆内部存在的内应力,且制备工艺简单,实现了节约成本与减少劳动强度,满足实际使用要求。

Description

电线电缆用无味聚氯乙烯组合物及制备方法
技术领域
本发明涉及电线电缆用无味聚氯乙烯组合物及制备方法,属于电线电缆料组合物技术领域。
背景技术
电线电缆具有电力输送和信息输送的作用,在人们生活和生产中发挥着重要的作用。设计和制作低烟、低毒,同时又具备优异阻燃性能和绝缘性能的电缆料,成为当今阻燃研究的热点。传统的氢氧化镁与氢氧化铝阻燃剂,虽然能赋予材料良好的阻燃性能,但是,由于大多数电缆料的基体树脂为非极性的聚烯烃高分子,与极性的氢氧化镁、氢氧化铝的相容性较差,往往会降低材料的力学性能和加工性能。因而,研究出既具有良好的阻燃性能、同时具有环保性能,良好的机械加工性、较好的绝缘性能的电缆料材料成为发展的方向。
聚氯乙烯树脂因为具有优良的机械物理性能、耐化学试剂性能、易于加工、价格低廉,而被广泛应用于建筑、电力、电器等行业中。在电线电缆产品中,业者会根据产品的应用场所不同,而在聚氯乙烯树脂材料中添加不同的添加剂,藉以获得不同特性的聚氯乙烯树脂组合物。
发明内容
本发明正是针对现有技术存在的不足,提供一种电线电缆用无味聚氯乙烯组合物及制备方法,本发明组合物易于加工、价格低廉,且加工成型的电线电缆具有良好的耐化学性能和机械性能,改善了成型电线电缆内部存在的内应力,且制备工艺简单,实现了节约成本与减少劳动强度,满足实际使用要求。
为解决上述问题,本发明所采取的技术方案如下:
电线电缆用无味聚氯乙烯组合物,由下列重量份的组分原料制备而得:聚氯乙烯树脂80-100份、碳酸钙20-60份、聚酯可塑剂40-80份、稀土稳定剂4-6份、聚乙二醇2-4份、水滑石1.4-2.0份、硅溶胶4-6份、引发剂0.2-0.4份、硬脂酸钡0.4-0.6份、乙烯醋酸乙烯酯11-15份、碳化硅3-5份、壳聚糖3.5-4.5份、天青石4-6份、煅烧高岭土9-13份、阻燃剂1-3份、去离子水适量。
作为上述技术方案的改进,上述所述聚乙烯树脂分子量在1000-1350之间,K值在65-75,聚合度在1000-1350;上述所述聚酯可塑剂为粘度2400-6000毫帕.秒的高分子聚酯类;上述组合物中还按照重量比加入3-5份环氧大豆油;上述所述阻燃剂为氧化锑或氢氧化镁;上述所述稀土稳定剂是由镧系稀土硫酸钠复盐经氢氧化钠溶液转化而成的化合物。
具体地,所述电线电缆用无味聚氯乙烯组合物的制备方法如下:
步骤(1):将煅烧高岭土、碳酸钙、水滑石及天青石在480-520℃下煅烧4-6h,真空冷却至室温,取出后,加入4-6%的氢氧化钠溶液中研磨1-3小时,然后,加入12-16%的盐酸溶液,调节PH值为4.5-5.5,陈化8-12小时,再加入氢氧化钠溶液调节研磨液pH为中性,过滤,烘干得到粉末料;
步骤(2):将步骤(1)得到的粉末料置入等离子体装置的下电极介质上,电压18kV,电流1.8mA、间隙3mm的操作条件下照射15~25秒;
步骤(3):将上述所得粉末料与其它剩余成分混合置入高速混炼机中,以8000-10000r/min的高速分散均匀,再经两次热压后风冷至室温,最后经过双螺旋造粒机在145-165温度下造粒,即得。
本发明与现有技术相比较,本发明的实施效果如下:
本发明提供了一种电线电缆用无味聚氯乙烯组合物及制备方法,本发明组合物易于加工、价格低廉,且加工成型的电线电缆具有良好的耐化学性能和机械性能,改善了成型电线电缆内部存在的内应力,且制备工艺简单,实现了节约成本与减少劳动强度,满足实际使用要求。
附注:本发明制得的组合物还具极优良的耐紫外光、耐臭氧及耐化学特性、及抗张强度及断裂延伸率大。
具体实施方式
下面将结合具体的实施例来说明本发明的内容。
实施例1:
电线电缆用无味聚氯乙烯组合物,由下列重量份的组分原料制备而得:聚氯乙烯树脂80-100份、碳酸钙20-60份、聚酯可塑剂40-80份、稀土稳定剂4-6份、聚乙二醇2-4份、水滑石1.4-2.0份、硅溶胶4-6份、引发剂0.2-0.4份、硬脂酸钡0.4-0.6份、乙烯醋酸乙烯酯11-15份、碳化硅3-5份、壳聚糖3.5-4.5份、天青石4-6份、煅烧高岭土9-13份、阻燃剂1-3份、去离子水适量。
进一步改进地,上述所述聚乙烯树脂分子量在1000-1350之间,K值在65-75,聚合度在1000-1350;上述所述聚酯可塑剂为粘度2400-6000毫帕.秒的高分子聚酯类;上述组合物中还按照重量比加入3-5份环氧大豆油;上述所述阻燃剂为氧化锑或氢氧化镁;上述所述稀土稳定剂是由镧系稀土硫酸钠复盐经氢氧化钠溶液转化而成的化合物。
具体地,所述电线电缆用无味聚氯乙烯组合物的制备方法如下:
步骤(1):将煅烧高岭土、碳酸钙、水滑石及天青石在480-520℃下煅烧4-6h,真空冷却至室温,取出后,加入4-6%的氢氧化钠溶液中研磨1-3小时,然后,加入12-16%的盐酸溶液,调节PH值为4.5-5.5,陈化8-12小时,再加入氢氧化钠溶液调节研磨液pH为中性,过滤,烘干得到粉末料;
步骤(2):将步骤(1)得到的粉末料置入等离子体装置的下电极介质上,电压18kV,电流1.8mA、间隙3mm的操作条件下照射15~25秒;
步骤(3):将上述所得粉末料与其它剩余成分混合置入高速混炼机中,以8000-10000r/min的高速分散均匀,再经两次热压后风冷至室温,最后经过双螺旋造粒机在145-165温度下造粒,即得。
本发明组合物易于加工、价格低廉,且加工成型的电线电缆具有良好的耐化学性能和机械性能,改善了成型电线电缆内部存在的内应力,且制备工艺简单,实现了节约成本与减少劳动强度,满足实际使用要求。
附注:本发明制得的组合物还具极优良的耐紫外光、耐臭氧及耐化学特性、及抗张强度及断裂延伸率大。
实施例2:
电线电缆用无味聚氯乙烯组合物的制备方法:
可以对双螺旋造粒机挤出时设置挤出段温度,如:加料段118℃,熔融段165℃,熔体输送段170-180℃,混炼段185℃,机头计量段185℃。
本实施例制得的组合物性能测试结果如下表:
以上内容是结合具体的实施例对本发明所作的详细说明,不能认定本发明具体实施仅限于这些说明。对于本发明所属技术领域的技术人员来说,在不脱离本发明构思的前提下,还可以做出若干简单推演或替换,都应当视为属于本发明保护的范围。

Claims (7)

1.电线电缆用无味聚氯乙烯组合物,其特征在于:由下列重量份的组分原料制备而得:聚氯乙烯树脂80-100份、碳酸钙20-60份、聚酯可塑剂40-80份、稀土稳定剂4-6份、聚乙二醇2-4份、水滑石1.4-2.0份、硅溶胶4-6份、引发剂0.2-0.4份、硬脂酸钡0.4-0.6份、乙烯醋酸乙烯酯11-15份、碳化硅3-5份、壳聚糖3.5-4.5份、天青石4-6份、煅烧高岭土9-13份、阻燃剂1-3份、去离子水适量。
2.根据权利要求1所述电线电缆用无味聚氯乙烯组合物,其特征在于:上述所述聚乙烯树脂分子量在1000-1350之间,K值在65-75,聚合度在1000-1350。
3.根据权利要求1所述电线电缆用无味聚氯乙烯组合物,其特征在于:上述所述聚酯可塑剂为粘度2400-6000毫帕.秒的高分子聚酯类。
4.根据权利要求1所述电线电缆用无味聚氯乙烯组合物,其特征在于:上述组合物中还按照重量比加入3-5份环氧大豆油。
5.根据权利要求1所述电线电缆用无味聚氯乙烯组合物,其特征在于:上述所述阻燃剂为氧化锑或氢氧化镁。
6.根据权利要求1所述电线电缆用无味聚氯乙烯组合物,其特征在于:上述所述稀土稳定剂是由镧系稀土硫酸钠复盐经氢氧化钠溶液转化而成的化合物。
7.根据权利要求1-6所述电线电缆用无味聚氯乙烯组合物的制备方法,其特征在于:所述制备方法如下:
步骤(1):将煅烧高岭土、碳酸钙、水滑石及天青石在480-520℃下煅烧4-6h,真空冷却至室温,取出后,加入4-6%的氢氧化钠溶液中研磨1-3小时,然后,加入12-16%的盐酸溶液,调节PH值为4.5-5.5,陈化8-12小时,再加入氢氧化钠溶液调节研磨液pH为中性,过滤,烘干得到粉末料;
步骤(2):将步骤(1)得到的粉末料置入等离子体装置的下电极介质上,电压18kV,电流1.8mA、间隙3mm的操作条件下照射15~25秒;
步骤(3):将上述所得粉末料与其它剩余成分混合置入高速混炼机中,以8000-10000r/min的高速分散均匀,再经两次热压后风冷至室温,最后经过双螺旋造粒机在145-165温度下造粒,即得。
CN201710457429.7A 2017-06-16 2017-06-16 电线电缆用无味聚氯乙烯组合物及制备方法 Pending CN107236211A (zh)

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CN111875899A (zh) * 2020-06-22 2020-11-03 安徽滁州德威新材料有限公司 一种耐低温柔软弹性注塑组合物及其制备方法和应用
WO2022121481A1 (zh) * 2020-12-11 2022-06-16 湖北中烟工业有限责任公司 一种用于生产降温固件的装置及方法

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