--Defoamer dispersibility in water: Under stirring, 90 g of process water was slowly added to a beaker containing 10 g of defoamer, and gently shaken to observe its dispersion in water (excellent: rapid diffusion; medium: most of the dispersion was slow, and a small amount of flocculent The materia... read more
The silicone emulsion type defoamer manufacturing process is divided into 3 steps: The preparation of a silicone paste. A certain amount of polydimethylsiloxane (hereinafter referred to as silicone oil) having different viscosity, activated silica, modifier and catalyst are stirred and reacted at ... read more
materials leads inevitably to a loss of quality of high-performance concretes. Undesired air voids can weaken the system resulting in lower mechanical strength and abrasion resistance. A highly porous structure on the surface allows the penetration of harmful substances and can lead to surface defe... read more
Large amount of foam is produced during the wet processing of textile dyeing and finishing because of the using textile auxiliaries, which affect the production operation, the production capacity go down, product quality would be degraded. Therefore, it must remove the harm ful foam from the texti... read more
The above-mentioned defoamers are all traditional defoamers, and their defoaming substances are all water-insoluble substances, and proper amount of emulsifiers, extenders, etc. need to be added to make them quickly and uniformly dispersed in the water-based paint to exert their defoaming effect. I... read more