Preparation And Performance Of The Function Of The Modified Wax And Silicone Oil Emulsion-based Study

This paper widely conducted researches on the grafting of maleic anhydride with paraffin/polyethylene wax using melted grafting and discussed the effects of the grafting temperature,reaction time,the amount of initiator and maleic anhydride,and the grafting product was proved by IR and chemical dropping.The results showed the influence factors of grafting on paraffin from big to small was the reaction temperature,the amount of initiator,the dropping time and the amount of MAH.The optimum condition for 50g paraffin was obtainedrinitiator was 1.6g,MAH was 9g,the dropping time was 3 hours and the reaction temperature was 160C.The effects of grafting on polyethylene from big to small was the amount of MAH,temperature,the amount of initiator and the reaction time.The optimum condition for 50g polyethylene was that the temperature was 160 C. The dropping time was 3 hours , the amount of MAH was 9g and the amount of initiator was 1.3g.The paper also described a method using for emulsion's stable testing .The approach has three items,i.e. stability in standard solution, stability in Al2SO4)3 solution and stability in storing,which multiplied with parameter 0.3, 0.3, 0.4 respectively then added together to achieved the compounded digital.We testified the reliability of the method and the outcome is positive.We also looked for the optimum conditions in making emulsion. The results showed the influence factors on paraffin emulsion's characters from strong to wick are that the emulsification time, the reaction temperature, the solid content and the amount of emulsifier. The optimum making conditions are that the stirring time is 40 minutes, the reaction temperature was 90*C, the amount of solid is 7 percent and the amount of emulsifier is 11.2 percent. It also showed that the characters of paraffin grafting product emulsions are prior to the paraffin emulsion. The optimum making condition of dimethylsilicone emulsions are that the time of emulsificationis 3.0h, the amount of emulsifier is 10:2.0, the temperature of emulsification is 70C and the optimum making conditions of aminosilicone emulsion are that the time of emulsification is 3.0hr, the amount of emulsifier is 12% weight, the temperature of emulsification is 50C. The optimum volume ratio of mixture of wax emulsification and aminosilicone emulsification is 1:9.The protection efficients of above emulsions to metal panels are perfectible and the value of protection is adhered to its stability. The grafted bee wax emulsion provided the best protection to metal panel which only lost 0.124% weight after putted in sulfuric acid solution for an hour, but the non-protected lost 4.438% weight after same processing.