The invention belongs to the technical field of rubber preparation, in particular to a wave absorbing rubber mixing process. The absorbing rubber mixing process of the invention includes the following steps: (1) roll wrapping: pour the raw rubber into the mixing chamber of the internal mixer with the specification of 2-100l, set the temperature of the water cooler to 50 \u00b1 10 \u2103, start the positive rotation of the internal mixer roller, and roll the rubber into the plastic film after 5-10min; (2) powder eating: after the rubber is rolled into the plastic film, add the magnetic powder, color paste and dispersion to the internal mixer in turn Agent, coupling agent, press down the top bolt, the mixer roller is rotating for 10-15min until the gel is evenly mixed; (3) gel back mixing: after the gel is evenly fed with powder, raise the top bolt and add the curing agent. After the mixer roller is rotating for 5-10min, the surface color of the gel is uniform and there is no liquid precipitation, and the stable semi-finished rubber can be obtained after the measurement of the discharge temperature is qualified; through the above method, the absorbing rubber After internal mixing, it is more uniform, the mixing efficiency is higher, and at the same time, it reduces the powder loss under the normal open mixing mode.
【技术实现步骤摘要】
一种吸波橡胶混炼工艺
本专利技术属于橡胶制备
,具体涉及一种吸波橡胶混炼工艺。
技术介绍
目前,吸波橡胶通常用开炼式炼胶机进行混炼。此种情况下,吸波粉体较容易飘散造成损耗,最终得到的半成品混炼胶会存在性能不足的情况。同时,因为吸波橡胶配方中吸波粉体占比较大,通常开炼速度为30min/kg,混炼速率较慢,生产效率较低。
技术实现思路
本专利技术所要解决的技术问题在于针对上述现有技术的不足,提供了一种吸波橡胶混炼工艺。本专利技术采用密炼机进行吸波橡胶的混炼,吃粉时密炼室加压密封,基本没有粉体损耗,可依据实际混炼室容积调整混炼量,效率对比开炼式混炼有大幅提高,能解决现有开炼式炼胶机混炼吸波橡胶时损耗大,效率低的问题。为解决上述技术问题,本专利技术采用的技术方案是:一种吸波橡胶混炼工艺,其特征在于,该混炼工艺具有以下特征:一种吸波橡胶混炼工艺,包括以下步骤:(1)包辊:将生胶倒入密炼机混炼室中,设置冷水机温度为50±10℃,启动密炼机辊筒正转,5~10min后橡胶打卷成塑炼胶卷;(2)吃粉:在橡胶打卷成塑炼胶卷后,向密炼机中加入磁性粉体、色膏、分散剂、偶联剂,下压上顶栓,密炼机辊筒正转10~15min直至胶体混炼均匀;(3)胶体返炼:在胶体吃粉均匀后,升起上顶栓并加入硫化剂,密炼机辊筒正转5~10min后,胶体表面颜色均匀、无液体析出,测量排胶温度合格后即可得到稳定半成品胶;其中,所述吸波橡胶中各组分的质量分数如下:所述生胶是硅酮橡胶、聚氨酯橡胶或氯丁橡胶中的一种或几种。所述密炼机规格2~100L,上顶栓压力为0~0.6Mpa,转子转速30~35r/min,排胶 ...
【技术保护点】
1.一种吸波橡胶混炼工艺,其特征在于,包括以下步骤:(1)包辊:将生胶倒入密炼机混炼室中,设置冷水机温度为50±10℃,启动密炼机辊筒正转,5~10min后橡胶打卷成塑炼胶卷;(2)吃粉:在橡胶打卷成塑炼胶卷后,向密炼机中加入磁性粉体、色膏、分散剂、偶联剂,下压上顶栓,密炼机辊筒正转10~15min直至胶体混炼均匀;(3)胶体返炼:在胶体吃粉均匀后,升起上顶栓并加入硫化剂,密炼机辊筒正转5~10min后,胶体表面颜色均匀、无液体析出,测量排胶温度合格后即可得到稳定半成品胶;其中,所述吸波橡胶中各组分的质量分数如下:生胶 1%~20%;磁性粉末 50%~90%;色膏 0.1%~5%;分散剂 0.1%~5%;偶联剂 0.1%~5%;硫化剂 0.1%~5%。
【技术特征摘要】
1.一种吸波橡胶混炼工艺,其特征在于,包括以下步骤:(1)包辊:将生胶倒入密炼机混炼室中,设置冷水机温度为50±10℃,启动密炼机辊筒正转,5~10min后橡胶打卷成塑炼胶卷;(2)吃粉:在橡胶打卷成塑炼胶卷后,向密炼机中加入磁性粉体、色膏、分散剂、偶联剂,下压上顶栓,密炼机辊筒正转10~15min直至胶体混炼均匀;(3)胶体返炼:在胶体吃粉均匀后,升起上顶栓并加入硫化剂,密炼机辊筒正转5~10min后,胶体表面颜色均匀、无液体析出,测量排胶温度合格后即可得到稳定半成品胶;其中,所述吸波橡胶中各组分的质量分数如下:生胶1%~20%;磁性粉末50%~90%;色膏0.1%~5%;分散剂0.1%~5%;偶联剂0.1%~5%;硫化剂0.1%~5%。2.根据权利要求1所述的吸波橡胶混炼工艺,其特征在于,所述生胶是硅酮橡胶、聚氨酯橡胶或氯丁橡胶...
【专利技术属性】
技术研发人员:陈曲,秦利华,申永强,吴晓宁,朱光福,
申请(专利权)人:北京中石伟业科技无锡有限公司,北京中石伟业科技股份有限公司,
类型:发明
国别省市:江苏,32
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