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The paraffin wax microemulsion was prepared from fully refined paraffin wax No.58-60 in the presence of a nonionic surfactant and an anionic surfactant.The influence of manufacturing parameters on the particle diameter of paraffin wax microemulsion included the quantity of the emulsifier,the temperature and emulsification time,the stirring speed,the pH value and the auxiliary ingredient(cosurfactant).The test results showed that the temperature of emulsification had little effect on the particle size of paraffin wax microemulsion in a temperature range of 75-85 ℃.Other manufacturing parameters all had a great effect on the particle size of paraffin wax microemulsion.The optimum preparation conditions included:a w(emulsifier) of 6%,an emulsification temperature of 80 ℃,an emulsification time of 40 min,a pH value of about 8,and a stirring speed of 600 r/min,with n-amyl alcohol serving as the co-surfactant.Under these conditions,a translucent and baby blue paraffin wax emulsion was prepared with its particle size equating to 97 nm.
The paraffin wax microemulsion was prepared from fully refined paraffin wax No. 58-60 in the presence of a nonionic surfactant and an anionic surfactant. The influence of manufacturing parameters on the particle diameter of paraffin wax microemulsion included the quantity of the emulsifier, the temperature and emulsification time, the stirring speed, the pH value and the auxiliary ingredient (cosurfactant). The test results showed that the temperature of emulsification had little effect on the particle size of paraffin wax microemulsion in a temperature range of 75-85 ° C.Other manufacturing parameters all had a great effect on the particle size of paraffin wax microemulsion. The optimum preparation conditions included: aw (emulsifier) of 6%, an emulsification temperature of 80 ° C, an emulsification time of 40 min, a pH value of about 8 , and a stirring speed of 600 r / min, with n-amyl alcohol serving as the co-surfactant. Under these conditions, a translucent and baby blue paraffin wax emulsion was pr epared with its particle size equating to 97 nm.