CN105153508A - 一种阻燃耐拉伸聚乙烯基电缆料及其制备方法 - Google Patents
一种阻燃耐拉伸聚乙烯基电缆料及其制备方法 Download PDFInfo
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Abstract
本发明公开了一种阻燃耐拉伸聚乙烯基电缆料及其制备方法,所述的电缆料包括聚乙烯14-24份、苯乙烯-丙烯腈共聚物15-28份、聚邻苯二甲酰胺3-7份、聚酰胺酰亚胺4-10份、T151A聚异丁烯基丁二酰亚胺3-9份、顺丁橡胶6-13份、KH-792硅烷偶联剂4-8份、四溴双酚A3-7份、硼酸钡2-6份、三氧化钼3-5份、氯化钡4-10份、硫酸镁2-7份;所述的制备方法包括高速搅拌机中搅拌、双螺杆挤出机进行挤出造粒、开炼机上进行塑化、出片、冷却后得到电缆料。制备得到的电缆料具有阻燃强度高、拉伸强度大的特性。
Description
技术领域
本发明属于电缆材料领域,涉及一种电缆料及其制备方法,尤其涉及一种阻燃耐拉伸聚乙烯基电缆料及其制备方法。
背景技术
电线电缆的结构,总体上可分为导体、绝缘层、屏蔽、和护层这四个结构组成部分、或称为结构元件、构件。电线电缆常用塑料有聚乙烯、交联聚乙烯、聚氯乙烯、聚丙烯、聚烯烃、氟塑料、尼龙等。
聚乙烯是目前应用最广、用量最大的塑料,聚乙烯电阻率高、击穿场强高,耐候性、工艺性好,是目前最好的电绝缘材料。但由于其工作温度低,所以主要用作通信电缆的绝缘。中密度和高密度聚乙烯的强度和硬度较高,其透水率低,多用作电缆护套。但是,聚乙烯有最大的缺点,即容易燃烧,且黑烟浓烈,因此它的应用给环境带来了许多隐患。
聚乙烯基电缆料由于具有上述的缺点,因此需要对聚乙烯基电缆料的拉伸强度和阻燃强度进行提升,才能让聚乙烯基电缆料用于更广的领域。
发明内容
要解决的技术问题:常规的电缆料的拉伸强度较低,在使用中容易发生拉伸的情况,拉伸力度过大,则会导致电缆料的变形、断裂等现象,另外,由于电缆使用的特殊环境,必须具备良好的阻燃强度,因此,有必要对聚乙烯基电缆料的拉伸强度和阻燃性能进行进一步改良,提高其质量。
本发明的目的可以通过以下技术方案实现:
本发明公开了一种阻燃耐拉伸聚乙烯基电缆料,所述的阻燃耐拉伸聚乙烯基电缆料包括以下重量份的成分:
聚乙烯14-24份、
苯乙烯-丙烯腈共聚物15-28份、
聚邻苯二甲酰胺3-7份、
聚酰胺酰亚胺4-10份、
T151A聚异丁烯基丁二酰亚胺3-9份、
顺丁橡胶6-13份、
KH-792硅烷偶联剂4-8份、
四溴双酚A3-7份、
硼酸钡2-6份、
三氧化钼3-5份、
氯化钡4-10份、
硫酸镁2-7份。
优选的,所述的一种阻燃耐拉伸聚乙烯基电缆料,包括以下重量份的成分:
聚乙烯17-20份、
苯乙烯-丙烯腈共聚物18-24份、
聚邻苯二甲酰胺4-6份、
聚酰胺酰亚胺6-9份、
T151A聚异丁烯基丁二酰亚胺4-8份、
顺丁橡胶8-11份、
KH-792硅烷偶联剂5-7份、
四溴双酚A4-6份、
硼酸钡3-5份、
三氧化钼4-5份、
氯化钡6-8份、
硫酸镁3-6份。
一种如上所述的阻燃耐拉伸聚乙烯基电缆料的制备方法,制备方法包括以下步骤:
(1)按重量分别将聚乙烯14-24份、苯乙烯-丙烯腈共聚物15-28份、聚邻苯二甲酰胺3-7份、
聚酰胺酰亚胺4-10份、T151A聚异丁烯基丁二酰亚胺3-9份、顺丁橡胶6-13份、KH-792硅烷偶联剂4-8份、四溴双酚A3-7份、硼酸钡2-6份、三氧化钼3-5份、氯化钡4-10份、硫酸镁2-7份投入到高速搅拌机中,在转速为60r/min-90r/min下搅拌均匀;
(2)将步骤(1)的混合料用双螺杆挤出机进行挤出造粒,双螺杆挤出机螺杆长径比为15:1-20:1,双螺杆挤出机挤出一区温度为160-170℃,二区温度为175-185℃,三区温度为195-205℃,四区温度为210-215℃;
(3)将双螺杆挤出造粒后的粒子再在开炼机上进行塑化、出片,开炼机温度为110-130℃,冷却后得到电缆料。
所述的阻燃耐拉伸聚乙烯基电缆料的制备方法,制备方法步骤(1)中转速为80r/min。
所述的阻燃耐拉伸聚乙烯基电缆料的制备方法,制备方法步骤(2)中双螺杆挤出机螺杆长径比为18:1。
所述的阻燃耐拉伸聚乙烯基电缆料的制备方法,制备方法步骤(3)中开炼机温度为120℃。
所述的阻燃耐拉伸聚乙烯基电缆料的制备方法,制备方法步骤(2)中一区温度为165℃,二区温度为180℃,三区温度为200℃,四区温度为215℃。
有益效果:通过对电缆料内的高分子成分和填料进行改良,制备得到的聚乙烯基电缆料具备了较高的拉伸强度和氧指数,具有很好的抗断裂性能和阻燃性能,加入的聚酰胺酰亚胺、T151A聚异丁烯基丁二酰亚胺、氯化钡、硫酸镁对提高电缆料的质量都有非常关键的作用,制备的电缆料可用于电线电缆护套材料的制备中。
具体实施方式
以下结合实施例对本发明作进一步的说明。
实施例1
(1)按重量分别将聚乙烯24份、苯乙烯-丙烯腈共聚物15份、聚邻苯二甲酰胺7份、聚酰胺酰亚胺4份、T151A聚异丁烯基丁二酰亚胺9份、顺丁橡胶13份、KH-792硅烷偶联剂8份、四溴双酚A7份、硼酸钡2份、三氧化钼5份、氯化钡10份、硫酸镁2份投入到高速搅拌机中,在转速为90r/min下搅拌均匀;
(2)将步骤(1)的混合料用双螺杆挤出机进行挤出造粒,双螺杆挤出机螺杆长径比为20:1,双螺杆挤出机挤出一区温度为170℃,二区温度为185℃,三区温度为205℃,四区温度为210℃;
(3)将双螺杆挤出造粒后的粒子再在开炼机上进行塑化、出片,开炼机温度为130℃,冷却后得到电缆料。
实施例2
(1)按重量分别将聚乙烯14份、苯乙烯-丙烯腈共聚物28份、聚邻苯二甲酰胺3份、聚酰胺酰亚胺10份、T151A聚异丁烯基丁二酰亚胺3份、顺丁橡胶6份、KH-792硅烷偶联剂4份、四溴双酚A3份、硼酸钡6份、三氧化钼3份、氯化钡4份、硫酸镁7份投入到高速搅拌机中,在转速为60r/min下搅拌均匀;
(2)将步骤(1)的混合料用双螺杆挤出机进行挤出造粒,双螺杆挤出机螺杆长径比为15:1,双螺杆挤出机挤出一区温度为160℃,二区温度为175℃,三区温度为195℃,四区温度为215℃;
(3)将双螺杆挤出造粒后的粒子再在开炼机上进行塑化、出片,开炼机温度为110℃,冷却后得到电缆料。
实施例3
(1)按重量分别将聚乙烯17份、苯乙烯-丙烯腈共聚物24份、聚邻苯二甲酰胺6份、聚酰胺酰亚胺6份、T151A聚异丁烯基丁二酰亚胺8份、顺丁橡胶11份、KH-792硅烷偶联剂7份、四溴双酚A4份、硼酸钡3份、三氧化钼5份、氯化钡6份、硫酸镁3份投入到高速搅拌机中,在转速为90r/min下搅拌均匀;
(2)将步骤(1)的混合料用双螺杆挤出机进行挤出造粒,双螺杆挤出机螺杆长径比为20:1,双螺杆挤出机挤出一区温度为170℃,二区温度为185℃,三区温度为205℃,四区温度为210℃;
(3)将双螺杆挤出造粒后的粒子再在开炼机上进行塑化、出片,开炼机温度为130℃,冷却后得到电缆料。
实施例4
(1)按重量分别将聚乙烯20份、苯乙烯-丙烯腈共聚物18份、聚邻苯二甲酰胺4份、聚酰胺酰亚胺9份、T151A聚异丁烯基丁二酰亚胺4份、顺丁橡胶8份、KH-792硅烷偶联剂5份、四溴双酚A6份、硼酸钡5份、三氧化钼4份、氯化钡8份、硫酸镁6份投入到高速搅拌机中,在转速为60r/min下搅拌均匀;
(2)将步骤(1)的混合料用双螺杆挤出机进行挤出造粒,双螺杆挤出机螺杆长径比为15:1,双螺杆挤出机挤出一区温度为160℃,二区温度为175℃,三区温度为195℃,四区温度为215℃;
(3)将双螺杆挤出造粒后的粒子再在开炼机上进行塑化、出片,开炼机温度为110℃,冷却后得到电缆料。
实施例5
(1)按重量分别将聚乙烯19份、苯乙烯-丙烯腈共聚物21份、聚邻苯二甲酰胺5份、聚酰胺酰亚胺7份、T151A聚异丁烯基丁二酰亚胺6份、顺丁橡胶10份、KH-792硅烷偶联剂6份、四溴双酚A5份、硼酸钡4份、三氧化钼4份、氯化钡7份、硫酸镁5份投入到高速搅拌机中,在转速为80r/min下搅拌均匀;
(2)将步骤(1)的混合料用双螺杆挤出机进行挤出造粒,双螺杆挤出机螺杆长径比为18:1,双螺杆挤出机挤出一区温度为165℃,二区温度为180℃,三区温度为200℃,四区温度为215℃;
(3)将双螺杆挤出造粒后的粒子再在开炼机上进行塑化、出片,开炼机温度为120℃,冷却后得到电缆料。
对比例1
(1)按重量分别将聚乙烯14份、苯乙烯-丙烯腈共聚物28份、聚邻苯二甲酰胺3份、顺丁橡胶6份、KH-792硅烷偶联剂4份、四溴双酚A3份、硼酸钡6份、三氧化钼3份、氯化钡4份、硫酸镁7份投入到高速搅拌机中,在转速为60r/min下搅拌均匀;
(2)将步骤(1)的混合料用双螺杆挤出机进行挤出造粒,双螺杆挤出机螺杆长径比为15:1,双螺杆挤出机挤出一区温度为160℃,二区温度为175℃,三区温度为195℃,四区温度为215℃;
(3)将双螺杆挤出造粒后的粒子再在开炼机上进行塑化、出片,开炼机温度为110℃,冷却后得到电缆料。
对比例2
(1)按重量分别将聚乙烯14份、苯乙烯-丙烯腈共聚物28份、聚邻苯二甲酰胺3份、聚酰胺酰亚胺10份、T151A聚异丁烯基丁二酰亚胺3份、顺丁橡胶6份、KH-792硅烷偶联剂4份、四溴双酚A3份、硼酸钡6份、三氧化钼3份投入到高速搅拌机中,在转速为60r/min下搅拌均匀;
(2)将步骤(1)的混合料用双螺杆挤出机进行挤出造粒,双螺杆挤出机螺杆长径比为15:1,双螺杆挤出机挤出一区温度为160℃,二区温度为175℃,三区温度为195℃,四区温度为215℃;
(3)将双螺杆挤出造粒后的粒子再在开炼机上进行塑化、出片,开炼机温度为110℃,冷却后得到电缆料。
实施例和对比例的电缆料的拉伸强度和氧指数如下:
拉伸强度(N/mm2) | 氧指数 | |
实施例1 | 10.4 | 33 |
实施例2 | 10.6 | 33 |
实施例3 | 11.8 | 34 |
实施例4 | 11.5 | 35 |
实施例5 | 13.4 | 37 |
对比例1 | 8.5 | 32 |
对比例2 | 9.7 | 27 |
Claims (7)
1.一种阻燃耐拉伸聚乙烯基电缆料,其特征在于,所述的阻燃耐拉伸聚乙烯基电缆料包括以下重量份的成分:
聚乙烯14-24份、
苯乙烯-丙烯腈共聚物15-28份、
聚邻苯二甲酰胺3-7份、
聚酰胺酰亚胺4-10份、
T151A聚异丁烯基丁二酰亚胺3-9份、
顺丁橡胶6-13份、
KH-792硅烷偶联剂4-8份、
四溴双酚A3-7份、
硼酸钡2-6份、
三氧化钼3-5份、
氯化钡4-10份、
硫酸镁2-7份。
2.根据权利要求1所述的一种阻燃耐拉伸聚乙烯基电缆料,其特征在于,所述的阻燃耐拉伸聚乙烯基电缆料包括以下重量份的成分:
聚乙烯17-20份、
苯乙烯-丙烯腈共聚物18-24份、
聚邻苯二甲酰胺4-6份、
聚酰胺酰亚胺6-9份、
T151A聚异丁烯基丁二酰亚胺4-8份、
顺丁橡胶8-11份、
KH-792硅烷偶联剂5-7份、
四溴双酚A4-6份、
硼酸钡3-5份、
三氧化钼4-5份、
氯化钡6-8份、
硫酸镁3-6份。
3.一种如权利要求1所述的阻燃耐拉伸聚乙烯基电缆料的制备方法,其特征在于,制备方法包括以下步骤:
(1)按重量分别将聚乙烯14-24份、苯乙烯-丙烯腈共聚物15-28份、聚邻苯二甲酰胺3-7份、
聚酰胺酰亚胺4-10份、T151A聚异丁烯基丁二酰亚胺3-9份、顺丁橡胶6-13份、KH-792硅烷偶联剂4-8份、四溴双酚A3-7份、硼酸钡2-6份、三氧化钼3-5份、氯化钡4-10份、硫酸镁2-7份投入到高速搅拌机中,在转速为60r/min-90r/min下搅拌均匀;
(2)将步骤(1)的混合料用双螺杆挤出机进行挤出造粒,双螺杆挤出机螺杆长径比为15:1-20:1,双螺杆挤出机挤出一区温度为160-170℃,二区温度为175-185℃,三区温度为195-205℃,四区温度为210-215℃;
(3)将双螺杆挤出造粒后的粒子再在开炼机上进行塑化、出片,开炼机温度为110-130℃,冷却后得到电缆料。
4.根据权利要求3所述的一种阻燃耐拉伸聚乙烯基电缆料的制备方法,其特征在于,制备方法步骤(1)中转速为80r/min。
5.根据权利要求3所述的一种阻燃耐拉伸聚乙烯基电缆料的制备方法,其特征在于,制备方法步骤(2)中双螺杆挤出机螺杆长径比为18:1。
6.根据权利要求3所述的一种阻燃耐拉伸聚乙烯基电缆料的制备方法,其特征在于,制备方法步骤(3)中开炼机温度为120℃。
7.根据权利要求3所述的一种阻燃耐拉伸聚乙烯基电缆料的制备方法,其特征在于,制备方法步骤(2)中一区温度为165℃,二区温度为180℃,三区温度为200℃,四区温度为215℃。
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CN115725129A (zh) * | 2022-11-07 | 2023-03-03 | 南京青龙线缆材料有限公司 | 用硅烷改性防开裂阻燃聚乙烯电缆料的方法 |
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CN115725129A (zh) * | 2022-11-07 | 2023-03-03 | 南京青龙线缆材料有限公司 | 用硅烷改性防开裂阻燃聚乙烯电缆料的方法 |
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