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The diamond minute powder and its collection method, and the diamond slurry which disperses the said diamond minute powder
The diamond minute powder and its collection method, and the diamond slurry which disperses the said diamond minute powder
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机译：金刚石细粉及其收集方法，以及将上述金刚石细粉分散的金刚石浆料。
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摘要
Topic Main intended one of this invention the D50 value grain size due to UPA150 is to collect the diamond very fine particle below 20nm, as the high accuracy whole grain minute powder.Solutions The diamond minute powder of this invention is collected by the method the following including each process.The diamond particle surface come in contact making connect or making the hydrophilic functional group (1) in the minute powder where primary particle diameter contains the diamond particle below 50nm, the process which it makes surface hydrophily,(2) making the surface hydrophilic diamond underwater disperse, to slurry the process which is converted, and(3) slurry, the product of the acceleration and acceleration and centrifugal force loading time of 4 103 G or more (is called below the centrifugal load product ) 200 103 G amount or more (however as for G acceleration of gravity) being similar, to offer to ultracentrifugation operation, the relatively sinking big particle of grain size, the process which it separates, and(4) by adding the cation in slurry, in slurry the suspension the process which collects the very fine particle which has been done. Selective figure Figure 1
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