CN106928562A - 应用于进口挤出设备的氯化聚乙烯护套配方及挤出工艺 - Google Patents

应用于进口挤出设备的氯化聚乙烯护套配方及挤出工艺 Download PDF

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CN106928562A
CN106928562A CN201710153842.4A CN201710153842A CN106928562A CN 106928562 A CN106928562 A CN 106928562A CN 201710153842 A CN201710153842 A CN 201710153842A CN 106928562 A CN106928562 A CN 106928562A
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haloflex
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钱章兴
王兵兵
田敏
丁国生
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SHANGHAI LANHAO ELECTRIC CO Ltd
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Abstract

本发明所揭示的一种应用于进口特勒斯特挤出设备的氯化聚乙烯护套配方,其制成有效成分所涉及的原料及配重比为:氯化聚乙烯3000 70~80份;氯化聚乙烯7130 20~30份;DCP 3~5份;TAIC 1~2份;TMPTMA 1~2份;防老剂TMQ 0.5~1份;流动分散助剂Aflex 16 1份;氧化镁 6~10份;硬脂酸铅 1~2份;二盐基邻苯二甲酸铅 1~2份;高补强改性陶土Supfil 505 40~60份;滑石粉 60~80份;炭黑 3~5份;氯化石蜡油 10~15份;DOP 6~8份。本发明所揭示的一种应用于进口挤出设备的氯化聚乙烯护套配方,具有高强度,高阻燃,高抗撕及优异的挤出性能。

Description

应用于进口挤出设备的氯化聚乙烯护套配方及挤出工艺
技术领域
本发明涉及电缆护套领域,具体涉及一种适用于进口挤出设备的氯化聚乙烯护套配方,其具有高强度,高阻燃,高抗撕以及优异挤出性能。
背景技术
氯化聚乙烯具有优良的耐臭氧和耐电晕性,良好的耐候性能,良好的耐油耐化学药品性能,良好的抗撕裂性和物理机械性能,特别对于矿用电缆来说,氯化聚乙烯具有优良的阻燃性能,只需添加少量阻燃剂就能取得很好的阻燃效果。更为重要的是,氯化聚乙烯价格仅为其它护套材料(如EVA、CR、CSM等)的三分之一,甚至更低。因此,氯化聚乙烯材料已被广泛应用于制作电缆护套。
目前,多数电缆厂家均采用的国产挤出设备,该设备螺杆长径比14:1,压缩比1.3~1.6,采用的胶料也多为常规橡料厂家提供的混炼胶,胶料力学性能及阻燃性能往往不能达到国标要求。而本公司为了更好的发挥氯化聚乙烯护套的保护特性,采用进口特勒斯特挤出设备,螺杆长径比为16:1,压缩比为2.0。经过该设备挤出的护套不仅表观光滑圆整,并且材料微观结构更加致密,力学性能更加优异。同时护套对缆芯的裹紧力更大,能够大幅度提高电缆的使用寿命。但该设备对胶料的剪切力过大,混合时间较长,采用一般的氯化聚乙烯配方很难达到最佳的挤出效果,稍有不慎就造成焦烧,轻则导致电缆表观粗糙不圆整,重则直接导致电缆报废。
因此必须根据进口设备的特性,开发出与进口设备相匹配的胶料配方,在保证材料力学性能、阻燃性能、老化性能的基础上,通过试验寻找挤出机各段温度设定、螺杆转速的合理值,以期达到最好的挤出效果。
发明内容
本发明的目的就是克服上述背景技术中存在的一些缺点,提供一种应用于进口挤出设备的氯化聚乙烯护套配方,该配方的氯化聚乙烯材料具有优良的性能,与进口挤出设备挤出性能相互结合,加工的护套不仅表面光滑圆整,而且材料微观结构更加致密,力学性能更加优异。
为达到上述目的,本发明所揭示的一种应用于进口挤出设备的氯化聚乙烯护套配方,其制成有效成分所涉及的原料及配重比为:氯化聚乙烯3000 70~80份;氯化聚乙烯7130 20~30份;DCP 3~5份;TAIC 1~2份;TMPTMA 1~2份;防老剂TMQ 0.5~1份;流动分散助剂Aflex 16 1份;氧化镁 6~10份;硬脂酸铅 1~2份;二盐基邻苯二甲酸铅 1~2份;高补强改性陶土Supfil 505 40~60份;滑石粉 60~80份;炭黑 3~5份;氯化石蜡油 10~15份;DOP 6~8份。
一种采用氯化聚乙烯护套配方实现的护套挤出工艺,采用进口特勒斯特挤出设备挤出,其特征在于包括如下步骤:
a、将氯化聚乙烯3000、氯化聚乙烯7130、DCP、TAIC、TMPTMA、防老剂TMQ、Aflex 16、氧化镁、硬脂酸铅、二盐基邻苯二甲酸铅、Supfil 505、滑石粉、炭黑、氯化石蜡油及DOP投入婚恋及中混炼3~4min,提起上顶栓进行扫聊,重复两次直至温度显示100℃;
b、将步骤a中混炼胶排放至开炼机翻包混炼,然后在三辊碾页机上进行开条出片;
c、开条出片成品放置16h后投入连硫车间采用进口特勒斯特挤出设备进行连硫挤出,将螺杆、机身、机头温度分别设置为55℃、65℃及75℃,控制螺杆转速为15~18rpm,此时出胶量为450kg/h,出胶温度131℃,胶面光滑圆整。
本发明提供了一种特殊配方的氯化聚乙烯护套材料,通过两种氯化聚乙烯粉料3000和7130的复配,能够在强度、阻燃及加工工艺上产生良好的协同效应。两种氯化聚乙烯均具有相当高的强度,同时3000提供良好的耐油及阻燃特性,而7130大大的提高了体系的抗撕以及在高温100℃以上的流动性。采用DCP、TAIC及TMPTMA三种硫化助剂的相互作用,可以弥补DCP的焦烧缺陷,同时TAIC补强了TMPTMA后期硫化速度,而TMPTMA能够大幅度的提高氯化聚乙烯的力学性能。采用Aflex 16和Supfil 505代替通用配方中的硅烷偶联剂及白炭黑,能够大幅度的降低配方体系的粘度,同时减少胶料在螺杆内特别是进口挤出机的大长径比螺杆内的剪切生热效应。
将本配方护套氯化聚乙烯用于进口特勒斯特设备挤出工艺测试,并与普通配方的氯化聚乙烯护套材料进行对比,将螺杆、机身、机头温度分别设置为55℃、65℃及75℃,螺杆转速为18 rpm时,普通配方氯化聚乙烯护套材料出胶量300kg/h,出胶温度145℃,排胶10min后胶料出现表面僵化现象;而本发明提供的护套材料,在相同的挤出工艺下,出胶量450kg/h,出胶温度131℃,排胶20min后胶料出现表面依然光滑圆整。
与现有技术相比,本发明所揭示的一种应用于进口挤出设备的氯化聚乙烯护套配方,具有如下优点:该配方的氯化聚乙烯材料具有优良的性能,与进口挤出设备挤出性能相互结合,加工的护套不仅表面光滑圆整,而且材料微观结构更加致密,力学性能更加优异。
具体实施例
下面将对本发明的技术方案进行清楚、完整的描述。
具体实施例1
选用氯化聚乙烯3000 70份,7130 30份,DCP 3份,TAIC 1份,TMPTMA 1份,防老剂TMQ0.5份,Aflex 16 1份,氧化镁 6份,硬脂酸铅 1份,二盐基邻苯二甲酸铅 1份,Supfil 50540份,滑石粉 80份,炭黑 3份,氯化石蜡油10份,DOP 8份。将上述材料投入密炼机中混炼3~4 min,提起上顶栓进行扫料,重复两次,然后继续混炼直至温度显示100℃将混炼胶排放至开炼机翻包混炼,然后在三辊碾页机进行开条出片,成品放置16小时之后投入连硫车间采用进口特勒斯特挤出设备进行连硫挤出,在连硫挤出过程中,将螺杆、机身、机头挤出温度分别设置为55℃、65℃及75℃,螺杆转速15 rpm,蒸汽压力1.0 MPa,牵引速度3.5m/min得到成品,成品电缆表观光滑圆整,护套紧裹缆芯,没有焦烧现象。
具体实施例2
选用氯化聚乙烯3000 75份,7130 25份,DCP 4份,TAIC 1.5份,TMPTMA 1.5份,防老剂TMQ 0.8份,Aflex 16 1份,氧化镁 8份,硬脂酸铅 1.5份,二盐基邻苯二甲酸铅 1.5份,Supfil 505 50份,滑石粉 70份,炭黑 4份,氯化石蜡油13份,DOP 7份。将上述材料投入密炼机中混炼3~4 min,提起上顶栓进行扫料,重复两次,然后继续混炼直至温度显示100℃将混炼胶排放至开炼机翻包混炼,然后在三辊碾页机进行开条出片,成品放置16小时之后投入连硫车间采用进口特勒斯特挤出设备进行连硫挤出,在连硫挤出过程中,将螺杆、机身、机头挤出温度分别设置为55℃、65℃及75℃,螺杆转速18 rpm,蒸汽压力1.2 MPa,牵引速度5m/min得到成品。成品电缆表观光滑圆整,护套紧裹缆芯,没有焦烧现象。
具体实施例3
选用氯化聚乙烯3000 80份,7130 20份,DCP 5份,TAIC 2份,TMPTMA 2份,防老剂TMQ 1份,Aflex 16 1份,氧化镁 10份,硬脂酸铅 2份,二盐基邻苯二甲酸铅 2份,Supfil 505 60份,滑石粉 60份,炭黑 5份,氯化石蜡油15份,DOP 6份。将上述材料投入密炼机中混炼3~4min,提起上顶栓进行扫料,重复两次,然后继续混炼直至温度显示100℃将混炼胶排放至开炼机翻包混炼,然后在三辊碾页机进行开条出片,成品放置16小时之后投入连硫车间采用进口特勒斯特挤出设备进行连硫挤出,在连硫挤出过程中,将螺杆、机身、机头挤出温度分别设置为55℃、65℃及75℃,螺杆转速15 rpm,蒸汽压力1.3 MPa,牵引速度6m/min得到成品。成品电缆表观光滑圆整,护套紧裹缆芯,没有焦烧现象。
本发明提供了一种特殊配方的氯化聚乙烯护套材料,通过两种氯化聚乙烯粉料3000和7130的复配,能够在强度、阻燃及加工工艺上产生良好的协同效应。两种氯化聚乙烯均具有相当高的强度,同时3000提供良好的耐油及阻燃特性,而7130大大的提高了体系的抗撕以及在高温100℃以上的流动性。采用DCP、TAIC及TMPTMA三种硫化助剂的相互作用,可以弥补DCP的焦烧缺陷,同时TAIC补强了TMPTMA后期硫化速度,而TMPTMA能够大幅度的提高氯化聚乙烯的力学性能。采用Aflex 16和Supfil 505代替通用配方中的硅烷偶联剂及白炭黑,能够大幅度的降低配方体系的粘度,同时减少胶料在螺杆内特别是进口挤出机的大长径比螺杆内的剪切生热效应。
本发明的技术内容及技术特征已揭示如上,然而熟悉本领域的技术人员仍可能基于本发明的揭示而作种种不背离本发明精神的替换及修饰,因此,本发明保护范围应不限于实施例所揭示的内容,而应包括各种不背离本发明的替换及修饰,并为本专利申请权利要求所涵盖。

Claims (2)

1. 一种应用于进口挤出设备的氯化聚乙烯护套配方,其特征在于:其制成有效成分所涉及的原料及配重比为:氯化聚乙烯3000 70~80份;氯化聚乙烯7130 20~30份;DCP 3~5份;TAIC 1~2份;TMPTMA 1~2份;防老剂TMQ 0.5~1份;流动分散助剂Aflex 16 1份;氧化镁 6~10份;硬脂酸铅 1~2份;二盐基邻苯二甲酸铅 1~2份;高补强改性陶土Supfil505 40~60份;滑石粉 60~80份;炭黑 3~5份;氯化石蜡油 10~15份;DOP 6~8份。
2.一种采用权利要求1中的配方实现的护套挤出工艺,采用进口特勒斯特挤出设备挤出,其特征在于包括如下步骤:
a、将氯化聚乙烯3000、氯化聚乙烯7130、DCP、TAIC、TMPTMA、防老剂TMQ、Aflex 16、氧化镁、硬脂酸铅、二盐基邻苯二甲酸铅、Supfil 505、滑石粉、炭黑、氯化石蜡油及DOP投入密炼机中混炼3~4min,提起上顶栓进行扫,重复两次直至温度显示100℃;
b、将步骤a中混炼胶排放至开炼机翻包混炼,然后在三辊碾页机上进行开条出片;
c、开条出片成品放置16h后投入连硫车间采用进口特勒斯特挤出设备进行连硫挤出,将螺杆、机身、机头温度分别设置为55℃、65℃及75℃,控制螺杆转速为15~18rpm,此时出胶量为450kg/h,出胶温度131℃,胶面光滑圆整。
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CN107629342A (zh) * 2017-10-30 2018-01-26 嘉兴创奇电缆有限公司 一种耐油防霉橡胶护套料
CN108359204A (zh) * 2018-01-26 2018-08-03 上海蓝昊电气有限公司 一种中压橡胶电缆用可剥离型绝缘屏蔽材料及其制备工艺
CN109354784A (zh) * 2018-09-03 2019-02-19 航天瑞奇电缆有限公司 一种高强度梭车电缆护套配方及其加工工艺

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CN107629342A (zh) * 2017-10-30 2018-01-26 嘉兴创奇电缆有限公司 一种耐油防霉橡胶护套料
CN108359204A (zh) * 2018-01-26 2018-08-03 上海蓝昊电气有限公司 一种中压橡胶电缆用可剥离型绝缘屏蔽材料及其制备工艺
CN108359204B (zh) * 2018-01-26 2020-07-14 上海蓝昊电气有限公司 一种中压橡胶电缆用可剥离型绝缘屏蔽材料及其制备工艺
CN109354784A (zh) * 2018-09-03 2019-02-19 航天瑞奇电缆有限公司 一种高强度梭车电缆护套配方及其加工工艺

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