water filler
1.GHG-electrical grade activated silica powder is produced by way of mingling on the basis of electrical grade silica powder.It has activt effect on surface &make silica powder mingled with resin,raise cohesive force between resin &silica powder,raise the water-resestance on the sunface and the compressive strength of pour object,reduce sediment,gradation &split,increase filler of silica powder,and replaced inpoted products on the producing line of imported dry type transfomer &high tension mutual induc tance equiment,it has been the best pouring insulate materual in electrical trade.
2.The preparation of high quality printing-ink filler 206 #—ultrafine calcium carbonate is briefly introduced. The key to the preparation of ultrafine calcium carbonate(average particle size≤0.02 μm)is to add a certain amount chelating and dispersion agents(water soluble metallic salt)in the process of carbonation reaction and to control the carbonation temperature.
