The invention discloses a preparation process of conductive rubber for electromagnetic shielding, which includes controlling the temperature change of electroless plating reaction by adjusting the start-up time of the circulating water cooling device during the preparation of nickel-aluminium powder. When the second vulcanization time is 10 minutes, the heat conduction model of the second vulcanization is established, and the start-up of the circulating water cooling device is analyzed by series and parallel model algorithm and lumped parameter analysis method. Dynamic time not only affects the peak temperature of replacement nickel plating and reduction nickel plating, but also affects the time required for nickel plating process. The nickel plating process of circulating water cooling device is opened at the beginning of replacement nickel plating reaction, and the nickel-plated aluminium powder coating is complete and uniform, and the yield is high. The preparation process of conductive rubber for electromagnetic shielding is consistent with the experimental results because the second vulcanization time of conductive rubber is 626s. In vulcanization process, the conductive stability and crosslinking density of conductive rubber can be greatly improved under pressure-free constraints, because most of the free molecules are in a free state and the crosslinking reaction is enhanced, resulting in more crosslinking structures.
【技术实现步骤摘要】
一种电磁屏蔽用导电橡胶制备工艺
本专利技术涉及橡胶
,具体为一种电磁屏蔽用导电橡胶制备工艺。
技术介绍
随着电子信息产业的迅速发展,电子产品和设备在人们的日常生活中所占比重越来越大,电磁泄漏引起的电磁干扰逐渐受到了人们的关注。导电橡胶作为一种新型的电磁屏蔽材料,具有优良的电磁屏蔽效能;且由于其对工程结构的适应性强,在电子、通信以及医疗等领域得到了广泛的应用和认可。从热力学角度研究导电橡胶制备过程,改进材料制备工艺,对提高导电橡胶的性能具有实际意义。
技术实现思路
本专利技术的目的在于提供一种电磁屏蔽用导电橡胶制备工艺,以解决上述
技术介绍
中提出的现有的导电橡胶性能不足的问题。为实现上述目的,本专利技术提供如下技术方案,一种电磁屏蔽用导电橡胶制备工艺,包括在镀镍铝粉制备过程中,通过调节循环水冷却装置的启动时间来控制化学镀反应的温度变化,二段硫化时间为10min时,三种镍系填充导电橡胶的电磁屏蔽效能在40days内保持80dB以上,同时材料具有良好的柔性。在置换镀镍反应开始时刻开启循环水冷却装置的镀镍工艺,制备的镀镍铝粉镀层完整均匀,且产量较高。优选的,所述循环水冷却 ...
【技术保护点】
1.一种电磁屏蔽用导电橡胶制备工艺,包括在镀镍铝粉制备过程中,通过调节循环水冷却装置的启动时间来控制化学镀反应的温度变化,二段硫化时间为10min时,三种镍系填充导电橡胶的电磁屏蔽效能在40days内保持80dB以上,同时材料具有良好的柔性,在置换镀镍反应开始时刻开启循环水冷却装置的镀镍工艺,制备的镀镍铝粉镀层完整均匀,且产量较高。
【技术特征摘要】
1.一种电磁屏蔽用导电橡胶制备工艺,包括在镀镍铝粉制备过程中,通过调节循环水冷却装置的启动时间来控制化学镀反应的温度变化,二段硫化时间为10min时,三种镍系填充导电橡胶的电磁屏蔽效能在40days内保持80dB以上,同时材料具有良好的柔性,在置换镀镍反应开始时刻开启循环水冷却装置的镀镍工艺,制备的镀镍铝粉镀层完整均匀,且产量较高。2.根据权利要求1所述的一...
【专利技术属性】
技术研发人员:詹浩,
申请(专利权)人:中绿新材料江苏有限公司,
类型:发明
国别省市:江苏,32
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。