石墨烯改性有机硅皮革手感剂的乳化与应用

Graphene modified silicone as raw material, sorbitan monolaurate (Span 20) and polyethylene glycol sorbitan monolaurate (Tween 40) as complex emulsifiers, and glycerol as co-emulsifier were emulsified to prepare graphene modified silicone leather feeling agent. The results showed that under the conditions of Span 20 : Tween 40 ratio of 73:27, the HLB value is 10.5, controlling the emulsifier dosage of 15%, the co-emulsifier dosage of 2.5%, the pH value of 7, at shear rate of 1000r/min and shear time of 90min, the obtained emulsion has a light transmittance of 69.8%, and extremely strong acid and alkali resistance. The prepared graphene modified silicone is applied as a feeling agent for the top finishing of the leather, which can improve the wear resistance and dry/wet rub performance of the leather.