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发明公开
CN101768736A 硅酸钙镁矿物晶须表面化学镀镍铜配方及工艺 无效 - 撤回

硅酸钙镁矿物晶须表面化学镀镍铜配方及工艺
摘要：
一种可用于电磁波屏蔽、吸波、隐身与抗静电等特殊领域的导电矿物晶须材料的制备——硅酸钙镁矿物晶须表面化学镀镍铜配方及工艺。硅酸钙镁矿物晶须表面化学镀镍铜前的预处理工艺主要包括除油、粗化、敏化、活化等。化学镀镍铜工艺和配方主要包括20～50g/L硫酸镍，1～10g/L硫酸铜，20～40g/L次亚磷酸钠和40～80g/L柠檬酸钠，pH值7.5～11.0，施镀温度70～90℃，施镀时间0.5～5小时，烘干温度为80～100℃。本发明简单、方便、易于操作和控制，制备出的镀镍铜硅酸钙镁导电矿物晶须技术参数令人满意，可广泛用于非金属粉体表面化学镀镍铜。
摘要（英）：

The invention relates to a formula for chemical plating of nickel-copper on a calcium magnesium silicate mineral whisker surface and a process thereof, which can be used for preparing conductive mineral whisker materials in particular fields such as electromagnetic wave shielding, wave absorption, hiding, anti-static application and the like. The pretreatment process before chemical plating of nickel-copper on the calcium magnesium silicate mineral whisker surface mainly comprises degreasing, coarsening, sensitization, activation and the like. The formula for chemical plating of nickel-copper mainly comprises 20-50g/L nickel sulfate, 1-10g/L of copper sulfate, 20-40g/L of sodium hypophosphite and 40-80g/L of sodium citrate. In the process of chemical plating of nickel-copper, the plating temperature is 70-90 DEG C, the plating time is 0.5-5 hour(s), and the drying temperature is 80-100 DEG C. The invention is simple and convenient and can be easily operated and controlled, the parameters of the prepared nickel-copper-plated calcium magnesium silicate conductive mineral whisker are satisfactory, and the invention can be widely applied in the chemical plating of nickel-copper on the nonmetallic powder surface.

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