CN110240760B - 一种绝缘阻燃三元乙丙橡胶软管组合物及其制备方法 - Google Patents
一种绝缘阻燃三元乙丙橡胶软管组合物及其制备方法 Download PDFInfo
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Abstract
本发明一种绝缘阻燃三元乙丙橡胶软管组合物,其特征在于,按重量份数计包括:EPDM5890F,100份;高岭土,2‑6份;氧化锌,3‑8份;硬脂酸1‑3份;石蜡,2‑5份;防老剂MB,1‑3份;炭黑SP6400A,50‑70份;阻燃剂,130‑190份;石蜡油,10‑30份;硫磺,1‑2份;氧化钙,10‑15份;促进剂1.6‑3份;所述促进剂包括0.5‑0.8份的BZ促进剂、0.7‑1.2份的TRA促进剂、0.2‑0.5份DM促进剂及0.2‑0.5份促进剂TT;所述阻燃剂为80‑100份的氢氧化铝、20‑40份硼酸锌、10‑20份的三氧化二锑及20‑30份的十溴二苯乙烷,本发明另一目的是提供一种绝缘阻燃三元乙丙橡胶软管组合物的制备方法,在满足硫化橡胶电绝缘性和绝缘电阻的前提下,同时满足橡胶的机械强度要求。
Description
技术领域
本发明属于橡胶技术领域,特别是涉及一种绝缘阻燃三元乙丙橡胶软管组合物及其制备方法。
背景技术
橡胶软管是动车组用车内布线橡胶产品之一,该部件位于车体内和车体外。软管的内部穿各式各样的电线,软管主要对内部的线缆起保护作用,保护可分为机械外力作用下的保护,另外还要对外界热源保护内部的线缆,众所周知,三元乙丙橡胶(EPDM)是乙烯、丙烯和少量非共轭二烯烃的共聚物,因其优异的电绝缘性、低密度、高填充性、耐低温性、耐热性、耐臭氧性及耐天候老化性等性能得到了广泛地应用,在世界合成橡胶消费总量中,约占7%,位居第三,但是阻燃性能差绝缘性能差。
我们知道三元乙丙橡胶为非自补强橡胶,所以,要想使三元乙丙橡胶达到一定的机械强度,必须加入炭黑进行补强,然而,炭黑是一种导电材料,随着三元乙丙橡胶中炭黑比例用量的增加,机械性能增加但绝缘性能下降。
目前橡胶软管组合物的阻燃性能通常采用卤素阻燃剂,其优点是用量少、阻燃效率高且适应性广,但其严重缺点是燃烧时生成大量的烟和有毒且具腐蚀性的气体,危害很大。
因此现有技术有待进一步改进。
发明内容
本发明提供了一种绝缘阻燃三元乙丙橡胶软管组合物,旨在提供一种具有优异的阻燃性能和绝缘性能的三元乙丙橡胶组合物,本发明的另一个目的是一种绝缘阻燃三元乙丙橡胶软管组合物的制备方法,采用热空气硫化工艺,解决无压力硫化的情况下制备的橡胶软管断面密实,进一步地提高产品的生产效率,降低生产制造成本。
为解决上述问题,本发明所采用的技术方案是:
一种绝缘阻燃三元乙丙橡胶软管组合物,按重量份数计包括:
EPDM5890F,100份;高岭土,2-6份;氧化锌,3-8份;硬脂酸1-3份石蜡,2-5份;防老剂MB,1-3份;炭黑SP6400A,50-70份;阻燃剂,130-190份;石蜡油,10-30份;硫磺,1-2份;氧化钙,10-15份;促进剂1.6-3份;
所述促进剂包括0.5-0.8份的BZ促进剂、0.7-1.2份的TRA促进剂、0.2-0.5份DM促进剂及0.2-0.5份促进剂TT;
所述阻燃剂为80-100份的氢氧化铝、20-40份硼酸锌、10-20份的三氧化二锑及20-30份的十溴二苯乙烷。
本发明还提供一种绝缘阻燃橡胶软管组合物的制备方法,包括如下步骤:
(1)称重:将原材料按照配方中的配比进行称量;;
(2)原材料预处理:将步骤(1)称量的炭黑SP6400A与氢氧化铝和石蜡油搅拌均匀,超声活化5-7小时备用;
(3)一次加压混炼:将三元乙丙橡胶EPDM5890F、高岭土、氧化锌、防老剂MB、石蜡、硬脂酸加入密炼机混炼,上顶栓压力为05-0.6MPa,时间为2~3分钟;
(4)二次加压混炼:在步骤(3)混炼后的胶料中加入步骤(1)处理后的炭黑SP6400A与氢氧化铝,上顶栓压力为0.5-0.6MPa;
(5)三次加压混炼,在步骤(4)混炼后的胶料中加入硼酸锌、三氧化二锑、十溴二苯乙烷和进行混炼,上顶栓压力为0.5-0.6MPa,结束温度为140-150℃;
(6)出片:将步骤(5)的混炼后的胶料排到开炼机上,在开炼机上将胶料薄通3-4遍,使胶料冷却到70-80℃,然后均匀加入硫磺、促进剂和氧化钙,倒胶3-4次,最后将开炼机辊距调整为1mm,进行薄通后下片冷却;
(7)热炼下条:将开炼机辊温进行预热到50-60℃,然后将步骤(6)处理后的胶料放到开炼机上,单次预热胶料为50-60kg,待胶料预热均匀、表面光滑后下条,下条厚度7-10mm,宽度50-60mm;
(8)热空气硫化:将步骤(7)制备的胶条置于挤出机中挤出,螺杆温度设置为55-75℃,机头温度设置为80-90℃。
进一步地,所述步骤(8)硫化挤出时,对螺杆管芯充0.1MPa的气压,硫化采用热空气硫化。
所述热空气硫化为三段烘箱热空气硫化,一段热空气硫化温度为190~200℃、二段热空气硫化温度为180~190℃、三段热空气硫化温度170~180℃。本发明的有益效果:
1、本发明通过选择合适的配比炼制的橡胶电绝缘性能在加压1000V电压下,绝缘电阻≥1000MΩ;氧指数≥30%满足性能的要求,硫化橡胶拉伸强度≥12Mpa,扯断伸长率≥500%;在满足硫化橡胶电绝缘性和绝缘电阻的前提下,同时满足橡胶的机械强度要求。
2、本发明在混炼前,对炭黑进行活化,活化时选用与阻燃剂氢氧化铝、石蜡油一起超声处理,超声时,石蜡油会溶解于炭黑和氢氧化铝,搅拌均匀,超声处理后会大大增加石蜡油与无机阻燃剂氢氧化铝相溶度,因此既达到了表面活化的作用,同时会增加炭黑和氢氧化铝的补强效果,同时,对氢氧化铝进行超声处理亦增加了表面的活性基团,后期混料时增大其分散性,混炼前对炭黑与氢氧化铝进行超声处理,解决了硫化密实橡胶断面出现气孔的问题,硫化后产品断面密实、无气孔。
3、传统地炭黑化,一般为强酸强碱的水溶液对炭黑处理,会破坏炭黑的内部结构,且由于是水溶液处理导致炭黑容易结块,一般需要添加分散剂或者处理后对再进行处理,本发明是将炭黑、氢氧化铝与石蜡油共混超声,避免了结块问题,同时,在石蜡油与氢氧化铝一起,属于微碱环境下超声对炭黑的表面活化,因此不会影响炭黑的绝缘性能,石蜡油是在本配方中不可缺少的增塑剂,选用阻燃剂氢氧化铝一起超声处理而不额外添加处理剂,在后期炼胶时不会产生其他影响。
4、本发明配方中添加了高岭土,一次混炼时,三元乙丙橡胶EPDM5890F与高岭土共同混炼,可以增加三元乙丙橡胶本体的机械强度,同时,增加了橡胶的可塑性,二次加压混炼与三次加压混炼时,高岭土在多次混炼摩擦过程中会产生少量的阳离子,强化了制备胶料的绝缘性能与阻燃性能。
5、本发明在挤出过程对螺杆管芯充0.1Mpa气压,充压可以保证在挤出橡胶软管时,对软管起到一个支撑作用,且硫化采用热空气三段硫化,此种方式成型后产品壁厚均匀、不易变形,并且从根本上解决了橡胶无压硫化工艺橡胶解决容易断面气孔的问题。
具体实施方式
为能清楚说明本方案的技术特点,下面通过具体实施方式,对本方案进行阐述。
实施例一
一种绝缘阻燃三元乙丙橡胶软管组合物,按照重量分数计,包括如下组分:
EPDM5890F,100份;高岭土,2份;氧化锌,3份;硬脂酸1.2份;石蜡,2份;防老剂MB,1份;炭黑SP6400A,50份;氢氧化铝100份;硼酸锌40份;三氧化二锑10份;十溴二苯乙烷10份;石蜡油,10份;硫磺,1份;促进剂BZ,0.8份;促进剂TRA,1.2份;促进剂DM,0.5份;促进剂TT,0.5份;氧化钙,10份。
一种绝缘阻燃橡胶软管组合物的制备方法,包括如下步骤:
(1)称重:将原材料按照配方中的配比进行称量;;
(2)原材料预处理:将步骤(1)称量的炭黑SP6400A与氢氧化铝和石蜡油搅拌均匀,超声活化5小时,捞出炭黑SP6400A与氢氧化铝,沥干备用;
(3)一次加压混炼:将三元乙丙橡胶EPDM5890F、高岭土、氧化锌、防老剂MB、石蜡、硬脂酸加入密炼机混炼,上顶栓压力为0.5MPa,时间为3分钟;
(4)二次加压混炼:在步骤(3)混炼后的胶料中加入步骤(1)处理后的炭黑SP6400A与氢氧化铝,上顶栓压力为0.5MPa;
(5)三次加压混炼,在步骤(4)混炼后的胶料中加入硼酸锌、三氧化二锑、十溴二苯乙烷和进行混炼,上顶栓压力为0.5MPa,结束温度为140℃;
(6)出片:将步骤(3)的胶料排到开炼机上,在开炼机上将胶料薄通3-4遍,使胶料冷却到80℃,然后均匀加入硫磺、促进剂和氧化钙,倒胶3次,最后将开炼机辊距调整为1mm,进行薄通后下片冷却;
(7)热炼下条:将开炼机辊温进行预热到60℃,然后将预热的胶料放到开炼机上,单次预热胶料为55kg,待胶料预热均匀、表面光滑后下条,下条厚度7-10mm,本实施例设置为8㎜,宽度50-60mm,本实施例设置为8㎜。
(8)热空气硫化:将步骤(7)制备的胶条置于挤出机中挤出,螺杆温度设置为75℃,机头温度设置为90℃,硫化挤出时,对螺杆管芯充0.1MPa的气压,硫化采用热空气硫化,所述热空气硫化为三段烘箱热空气硫化,一段热空气硫化温度为190~200℃、二段热空气硫化温度为180~190℃、三段热空气硫化温度170~180℃。
对比例一
一种绝缘阻燃三元乙丙橡胶软管组合物,按照重量分数计,同实施例一一致,区别仅在于不添加高岭土。
一种绝缘阻燃三元乙丙橡胶软管组合物的制备方法同实施例一
对比例二
一种绝缘阻燃三元乙丙橡胶软管组合物,按照重量分数计,同实施例一一致。
一种绝缘阻燃三元乙丙橡胶软管组合物的制备方法同实施例一,区别仅在于,缺少步骤二。
对比例三
一种绝缘阻燃三元乙丙橡胶软管组合物,按照重量分数计,同实施例一一致。
一种绝缘阻燃三元乙丙橡胶软管组合物的制备方法同实施例一,区别仅在于,步骤8中不对螺杆管芯充压。
实施例二
一种绝缘阻燃三元乙丙橡胶软管组合物,按照重量分数计,包括如下组分:
PDM5890F,100份;高岭土,4份;氧化锌,5份;硬脂酸2份;石蜡,3份;防老剂MB,1.5份;炭黑SP6400A,60份;氢氧化铝90份;硼酸锌30份;三氧化二锑15份;十溴二苯乙烷25份;石蜡油,15份;硫磺,1.2份;促进剂BZ,0.7份;促进剂TRA,1份;促进剂DM,0.4份;促进剂TT,0.4份;氧化钙,12份。
一种绝缘阻燃三元乙丙橡胶软管组合物的制备方法同实施例一。
实施例三
一种绝缘阻燃三元乙丙橡胶软管组合物,按照重量分数计,包括如下组分:
EPDM5890F,100份;高岭土,6份;氧化锌,6份;硬脂酸2.2份;石蜡,4份;防老剂MB,2份;炭黑SP6400A,70份;氢氧化铝80份;硼酸锌30份;三氧化二锑20份;十溴二苯乙烷20份;石蜡油,30份;硫磺,1.5份;促进剂BZ,0.5份;促进剂TRA,0.8份;促进剂DM,0.2份;促进剂TT,0.2份;氧化钙,15份。
一种绝缘阻燃三元乙丙橡胶软管组合物的制备方法同实施例一。
本发明实施例1-3和对比例1-3橡胶材料进行性能检测,其中,橡胶拉伸强和扯断伸长率按照GB/T528-2009规定方法进行测试;电绝缘性能按照TB/T2843-2015规定的方法进行测试;橡胶燃烧性能测定氧指数法按照
GB/T 10707-2008规定的方法进行测试,检测的结果如表1所示。
表1:
通过实施例1-3与对比例1-2相比较,可以看出,高岭土的添加、炭黑与氢氧化铝共同超声波处理后拉伸强度、扯断伸长率等机械性能明显高于对比例1-2,同时,制备的橡胶具有优异的阻燃性能与绝缘性能。
通过实施例1-3与对比例3相比,可以看出,挤出时,采用热空气硫化并在螺杆管芯充压,可以明显改善橡胶的外观,满足客户要求的技术指标橡胶电绝缘性能在加压1000V电压下,绝缘电阻≥1000MΩ;氧指数≥30%、硫化橡胶拉伸强度≥12Mpa,扯断伸长率≥500%。
以上所述只是本发明的优选实施方式,对于本技术领域的普通技术人员来说,在不脱离本发明原理的前提下,还可以做出若干改进和润饰,这些改进和润饰也被视为本发明的保护范围。
Claims (2)
1.一种绝缘阻燃三元乙丙橡胶软管组合物,其特征在于,按重量份数计包括:EPDM5890F,100 份;高岭土,2-6份;氧化锌,3-8 份;硬脂酸1-3 份;石蜡,2-5 份;防老剂MB,1-3 份;炭黑SP6400A,50-70 份;阻燃剂,130-190份;石蜡油,10-30份;硫磺,1-2 份;氧化钙,10-15份;促进剂1.6-3份;
所述促进剂包括0.5-0.8份的BZ促进剂、0.7-1.2份的TRA促进剂、0.2-0.5份DM促进剂及0.2-0.5份促进剂TT;
所述阻燃剂为80-100份的氢氧化铝、20-40份硼酸锌、10-20份的三氧化二锑及20-30份的十溴二苯乙烷;
橡胶软管组合物的制备方法,包括如下步骤:
(1)称重:将原材料按照配方中的配比进行称量;
(2)原材料预处理:将步骤(1)称量的炭黑SP6400A与氢氧化铝和石蜡油搅拌均匀,超声活化5-7小时备用;(3)一次加压混炼:将三元乙丙橡胶EPDM5890F、高岭土、氧化锌、防老剂MB、石蜡、硬脂酸加入密炼机混炼,上顶栓压力为 05-0.6MPa,时间为2~3分钟;
(4)二次加压混炼:在步骤(3)混炼后的胶料中加入步骤(1)处理后的炭黑SP6400A与氢氧化铝,上顶栓压力为0.5-0.6MPa;
(5)三次加压混炼,在步骤(4)混炼后的胶料中加入硼酸锌、三氧化二锑、十溴二苯乙烷进行混炼,上顶栓压力为0.5-0.6MPa,结束温度为140-150℃;
(6)出片:将步骤(3)的胶料排到开炼机上,在开炼机上将胶料薄通3-4遍,使胶料冷却到70-80℃,然后均匀加入硫磺、促进剂和氧化钙,倒胶3-4次,最后将开炼机辊距调整为1mm,进行薄通后下片冷却;
(7)热炼下条:将开炼机辊温进行预热到50-60℃,然后将预热的胶料放到开炼机上,单次预热胶料为50-60kg,待胶料预热均匀、表面光滑后下条,下条厚度7~10mm,宽度50~60mm;
(8)热空气硫化:将步骤(7)制备的胶条置于挤出机中挤出,螺杆温度设置为55-75℃,机头温度设置为80-90℃;对螺杆管芯充0.1MPa的气压,硫化采用热空气硫化。
2.如权利要求1所述的橡胶软管组合物的制备方法,其特征在于,所述热空气硫化为三段烘箱热空气硫化,一段热空气硫化温度为190~200℃、二段热空气硫化温度为180~190℃、三段热空气硫化温度170~180℃。
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2158339C1 (ru) * | 1999-06-23 | 2000-10-27 | Шехтер Владимир Ефимович | Полимерный рулонный кровельный и изоляционный материал |
CN105086167A (zh) * | 2014-05-15 | 2015-11-25 | 舟山坚久橡塑制业有限公司 | 一种环保型高阻燃易撕边三元乙丙垫片胶料及制备方法 |
CN106832619A (zh) * | 2017-03-21 | 2017-06-13 | 北京华通橡塑制品有限公司 | 耐热低压变橡胶及其制备方法 |
CN109228030A (zh) * | 2018-09-11 | 2019-01-18 | 江门市三马管业科技有限公司 | 一种软管收纳装置及软管加工生产线 |
-
2019
- 2019-07-04 CN CN201910598710.1A patent/CN110240760B/zh active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2158339C1 (ru) * | 1999-06-23 | 2000-10-27 | Шехтер Владимир Ефимович | Полимерный рулонный кровельный и изоляционный материал |
CN105086167A (zh) * | 2014-05-15 | 2015-11-25 | 舟山坚久橡塑制业有限公司 | 一种环保型高阻燃易撕边三元乙丙垫片胶料及制备方法 |
CN106832619A (zh) * | 2017-03-21 | 2017-06-13 | 北京华通橡塑制品有限公司 | 耐热低压变橡胶及其制备方法 |
CN109228030A (zh) * | 2018-09-11 | 2019-01-18 | 江门市三马管业科技有限公司 | 一种软管收纳装置及软管加工生产线 |
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