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发明公开
CN105695983A 激光熔注用纳米碳化硅含胶浆料及其制备方法 有权 转让

激光熔注用纳米碳化硅含胶浆料及其制备方法
摘要：
本发明公开了一种激光熔注用纳米碳化硅含胶浆料，其特征是它由占浆料质量分数3-5%的纳米碳化硅粉体、占浆料质量分数0.2%-0.3%的聚乙二醇、占浆料质量分数0.2%-0.3%的四甲基氢氧化铵以及余量的含胶醇水混合溶液组成。所述含胶醇水混合溶液由去离子水、无水乙醇和聚醋酸乙烯酯乳液（俗称白乳胶）组成；其中，聚醋酸乙烯酯乳液占含胶醇水混合溶液的体积分数为5-10%，余量则为无水乙醇和去离子水体积比为1:1的醇水混合溶液。这一浆料可适应于采用刷涂、浸涂和喷涂等涂覆方法；而且，其具有良好的悬浮稳定性，可稳定悬浮2个月不沉降，能够满足激光熔注等颗粒表面改性技术领域引入微细粉体的需要。
摘要（英）：

The invention discloses nano silicon carbide glue-containing slurry for laser melt injection. The nano silicon carbide glue-containing slurry for laser melt injection is characterized by comprising, by mass, 3-5% of nano silicon carbide powder, 0.2-0.3% of polyethylene glycol, 0.2-0.3% of tetramethylammonium hydroxide, and the balance a gel-containing alcohol-water mixed solution. The gel-containing alcohol-water mixed solution is composed of ionized water, absolute ethyl alcohol and polyvinyl acetate emulsion (commonly known as white emulsion), wherein the volume fraction of the polyvinyl acetate emulsion accounting for the gel-containing alcohol-water mixed solution is 5-10%, and the balance is an alcohol-water mixed solution containing the absolute ethyl alcohol and the ionized water with the volume ratio being 1:1. The slurry is suitable for brush coating, dip-coating, spray coating and other coating modes; moreover, the slurry has good suspension stability, can stably suspend for 2 months without sedimentation and can meet the requirements for introducing micro-fine powder to the field of particle surface modification technologies such as laser melt injection.

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