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中文摘要：
为了实现纳米颗粒的分级，研究影响纳米铜粉在无水乙醇中分散稳定性的因素。通过测定纳米铜粉分散在无水乙醇中形成的悬浮液的Zeta电位和吸光度，探讨悬浮液中分散荆的加入量和pH值对纳米Cu粉末在无水乙醇中的分散稳定性的影响。结果表明：当质量分数为0．01％的纳米铜粉分散在无水乙醇中，当分散剂加入量为0．008％（质量分数）时，分散稳定性最好。在此条件下，调节pH将降低其分散稳定性。
英文摘要：
In order to achieve for the classification of Cu nano-particles, the effect factors of dispersion and stability of Cu nano-particles in ethanol were researched. The dispersion and stability of Cu nano-particles in ethanol were studied under different pH values and dispersant concentration by the method of Zeta potential and absorbency. The results showed that when the mass fraction ofCu nano-particles was 0.01%, and the mass fraction of SDBS was 0.008%, the dispersion and stability ofCu nano-particles-ethanol suspension was the best, Under these conditions, regulation ofpH might reduced the dispersion stability.
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