CN104151690A - 无卤阻燃电缆护套料 - Google Patents

无卤阻燃电缆护套料 Download PDF

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CN104151690A
CN104151690A CN201410361481.9A CN201410361481A CN104151690A CN 104151690 A CN104151690 A CN 104151690A CN 201410361481 A CN201410361481 A CN 201410361481A CN 104151690 A CN104151690 A CN 104151690A
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罗宏强
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Abstract

本发明属于电气技术领域,具体涉及无卤阻燃电缆护套料。电缆护套料由下列份数组成:乙烯-醋酸乙烯酯共聚物100份,膨胀石墨80~120份,过氧化二异丙苯1~5份,抗氧化剂0.5~1.0份,助抗氧化剂0.1~0.5份。本发明所要解决的技术问题是提供一种无卤阻燃电缆护套料,克服现有无卤阻燃剂氢氧化物存在阻燃效率低,与基体相容性差,力学性能差的缺陷。

Description

无卤阻燃电缆护套料
技术领域
本发明属于电气技术领域,具体涉及无卤阻燃电缆护套料。 
背景技术
膨胀石墨便是新型碳素材料,早在19世纪60年代初,Brodie将天然石墨与硫酸和硝酸等化学试剂作用后加热,发现了膨胀石墨,然而其应用则在百年之后才开始。从此,众多国家就相继展开了膨胀石墨的研究和开发,取得了重大的科研突破。 
膨胀石墨遇高温可瞬间体积膨胀150~300倍,由片状变为蠕虫状,从而结构松散,多孔而弯曲,表面积扩大、表面能提高、吸附鳞片石墨力增强,蠕虫状石墨之间可自行嵌合,这样增加了它的柔软性、回弹性和可塑性。 
乙烯-乙酸乙烯酯塑料(EVAC)是乙烯和乙酸乙烯酯按不同比例共聚而成的高分子材料,有着良好的柔韧性、冲击强度、耐环境应力开裂性和光学性能,然而由于其易燃,在使用上受到很大限制,特别是在电缆等产品领域。电缆料的无卤阻燃是近年来电缆料阻燃领域研究的热点,但由于无卤阻燃剂氢氧化物阻燃效率低,与基体相容性差,因此无卤阻燃电缆料普遍存在力学性能差的问题。 
发明内容
本发明所要解决的技术问题是提供一种无卤阻燃电缆护套料,克服现有无卤阻燃剂氢氧化物存在阻燃效率低,与基体相容性差,力学性能差的缺陷。 
为了解决上述问题,本发明提供的技术方案: 
无卤阻燃电缆护套料由下列份数组成:乙烯-醋酸乙烯酯共聚物100份,膨胀石墨80~120份,过氧化二异丙苯1~5份,抗氧化剂0.5~1.0份,助 抗氧化剂0.1~0.5份。 
优选的,所述无卤阻燃电缆护套料由下列份数组成:乙烯-醋酸乙烯酯共聚物100份,膨胀石墨90~110份,过氧化二异丙苯2~4份,抗氧化剂0.6~0.8份,助抗氧化剂0.2~0.4份。 
优选的,所述无卤阻燃电缆护套料包含以下步骤: 
(1)按一定比例混合均匀后加入转矩流变仪中,于100℃~120℃熔融1~10min; 
(2)加入预先干燥好的膨胀石墨阻燃协效剂以及其它助剂,熔融共混1~10min后出料,然后在平板硫化仪中150℃~175℃热压8~15min,常温冷压2~9min成片状材料,即制得无卤阻燃电缆护套料。 
优选的,所述抗氧化剂为1,3,5-三甲基-2,4,6-(3,5-二叔丁基-4-羟基苯甲基)苯、硫代二丙酸二(十八醇)酯、二丁基羟基甲苯中的任一种。 
优选的,所述助抗氧化剂为三[2.4-二叔丁基苯基]亚磷酸酯、香辛料、茶多酚中的任一种。 
本发明与现有技术相比,其显著优点是: 
(1)提高无卤阻燃体系基体的相容性,改善基体树脂中的分散状态。 
(2)可使电缆料的冲击强度达到3518kJ/m2,断裂伸长率达到180.2%,而拉伸强度和氧指数可分别保持在15MPa和50%以上,高于低烟无卤阻燃电缆护套料的技术标准。 
具体实施方式
下面结合具体实施方式对本发明的技术方案作进一步具体说明。 
实施例1 
无卤阻燃电缆护套料由下列份数组成:乙烯-醋酸乙烯酯共聚物100份,膨胀石墨80份,过氧化二异丙苯1份,抗氧化剂0.5份,助抗氧化剂0.1份。 
无卤阻燃电缆护套料包含以下步骤: 
(1)按一定比例混合均匀后加入转矩流变仪中,于100℃熔融1min; 
(2)加入预先干燥好的膨胀石墨阻燃协效剂以及其它助剂,熔融共混1min后出料,然后在平板硫化仪中150℃热压8min,常温冷压2min成片状材料,即制得无卤阻燃电缆护套料。 
述抗氧化剂为1,3,5-三甲基-2,4,6-(3,5-二叔丁基-4-羟基苯甲基)苯。 
助抗氧化剂为三[2.4-二叔丁基苯基]亚磷酸酯。 
实施例2 
无卤阻燃电缆护套料由下列份数组成:乙烯-醋酸乙烯酯共聚物100份,膨胀石墨120份,过氧化二异丙苯5份,抗氧化剂1.0份,助抗氧化剂0.5份。 
无卤阻燃电缆护套料包含以下步骤: 
(1)按一定比例混合均匀后加入转矩流变仪中,于120℃熔融10min; 
(2)加入预先干燥好的膨胀石墨阻燃协效剂以及其它助剂,熔融共混10min后出料,然后在平板硫,化仪中175℃热压15min,常温冷压9min成片状材料,即制得无卤阻燃电缆护套料。 
抗氧化剂为硫代二丙酸二(十八醇)酯。 
优选的,所述助抗氧化剂为香辛料。 
实施例3 
无卤阻燃电缆护套料由下列份数组成:乙烯-醋酸乙烯酯共聚物100份,膨胀石墨90份,过氧化二异丙苯2份,抗氧化剂0.6份,助抗氧化剂0.2份。 
无卤阻燃电缆护套料包含以下步骤: 
(1)按一定比例混合均匀后加入转矩流变仪中,于110℃熔融8min; 
(2)加入预先干燥好的膨胀石墨阻燃协效剂以及其它助剂,熔融共混2min后出料,然后在平板硫化仪中160℃热压9min,常温冷压7min成片状材料,即制得无卤阻燃电缆护套料。 
抗氧化剂为二丁基羟基甲苯。 
助抗氧化剂为茶多酚。 
实施例4 
无卤阻燃电缆护套料由下列份数组成:乙烯-醋酸乙烯酯共聚物100份,膨胀石墨95份,过氧化二异丙苯1.5份,抗氧化剂0.4份,助抗氧化剂0.15份。 
无卤阻燃电缆护套料包含以下步骤: 
(1)按一定比例混合均匀后加入转矩流变仪中,于115℃熔融7min; 
(2)加入预先干燥好的膨胀石墨阻燃协效剂以及其它助剂,熔融共混3min后出料,然后在平板硫化仪中165℃热压9min,常温冷压7.5min成片状材料,即制得无卤阻燃电缆护套料。 
抗氧化剂为二丁基羟基甲苯。 
助抗氧化剂为茶多酚。 
实施例5 
无卤阻燃电缆护套料由下列份数组成:乙烯-醋酸乙烯酯共聚物100份,膨胀石墨98份,过氧化二异丙苯1.8份,抗氧化剂0.5份,助抗氧化剂0.25份。 
无卤阻燃电缆护套料包含以下步骤: 
(1)按一定比例混合均匀后加入转矩流变仪中,于118℃熔融7.5min; 
(2)加入预先干燥好的膨胀石墨阻燃协效剂以及其它助剂,熔融共混3.5min后出料,然后在平板硫化仪中168℃热压9min,常温冷压7.5min成片状材料,即制得无卤阻燃电缆护套料。 
抗氧化剂为二丁基羟基甲苯。 
助抗氧化剂为茶多酚。 
实施例6 
无卤阻燃电缆护套料由下列份数组成:乙烯-醋酸乙烯酯共聚物100份, 膨胀石墨110份,过氧化二异丙苯4份,抗氧化剂0.8份,助抗氧化剂0.2份。 
无卤阻燃电缆护套料包含以下步骤: 
(1)按一定比例混合均匀后加入转矩流变仪中,于105℃熔融5min; 
(2)加入预先干燥好的膨胀石墨阻燃协效剂以及其它助剂,熔融共混10min后出料,然后在平板硫化仪中169℃热压11min,常温冷压3min成片状材料,即制得无卤阻燃电缆护套料。 
抗氧化剂为硫代二丙酸二(十八醇)酯。 
助抗氧化剂为三[2.4-二叔丁基苯基]亚磷酸酯。 
以上显示和描述了本发明的基本原理、主要特征和本发明的优点。本行业的技术人员应该了解,本发明不受上述实施例的限制,上述实施例和说明书中描述的只是说明本发明的原理,在不脱离本发明精神和范围的前提下,本发明还会有各种变化和改进,这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。 

Claims (5)

1.一种无卤阻燃电缆护套料,其特征在于:所述电缆护套料由下列份数组成:乙烯-醋酸乙烯酯共聚物100份,膨胀石墨80~120份,过氧化二异丙苯1~5份,抗氧化剂0.5~1.0份,助抗氧化剂0.1~0.5份。
2.根据权利要求1所述一种无卤阻燃电缆护套料,其特征在于:所述电缆护套料由下列份数组成:乙烯-醋酸乙烯酯共聚物100份,膨胀石墨90~110份,过氧化二异丙苯2~4份,抗氧化剂0.6~0.8份,助抗氧化剂0.2~0.4份。
3.一种无卤阻燃电缆护套料的制备方法,其特征在于包含以下步骤:
(1)按一定比例混合均匀后加入转矩流变仪中,于100℃~120℃熔融1~10min;
(2)加入预先干燥好的膨胀石墨阻燃协效剂以及其它助剂,熔融共混1~10min后出料,然后在平板硫,化仪中150℃~175℃热压8~15min,常温冷压2~9min成片状材料,即制得无卤阻燃电缆护套料。
4.根据权利要求1或2所述一种无卤阻燃电缆护套料,其特征在于:抗氧化剂为1,3,5-三甲基-2,4,6-(3,5-二叔丁基-4-羟基苯甲基)苯、硫代二丙酸二(十八醇)酯、二丁基羟基甲苯中的任一种。
5.根据权利要求1或2所述一种无卤阻燃电缆护套料,其特征在于:助抗氧化剂为三[2.4-二叔丁基苯基]亚磷酸酯、香辛料、茶多酚中的任一种。
CN201410361481.9A 2014-07-25 2014-07-25 无卤阻燃电缆护套料 Pending CN104151690A (zh)

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Application publication date: 20141119