【摘要】 通过对两种自制乳化剂A,B界面扩张模量及所制备乳化沥青Zeta电位的测定,考察了界面扩张模量和Zeta电位与乳化沥青稳定性之间的关系。当自制乳化剂A,B浓度分别为100 mg/L,50 mg/L时,界面膜弹性最大。当乳化剂A,B掺量分别为2.8%、1.2%时,所制备乳化沥青Zeta电位绝对值最大,储存稳定性最佳。因此,界面扩张模量、Zeta电位与乳化沥青储存稳定性有着良好的对应关系,故二者可作为评价乳化剂优劣及确定乳化剂最佳用量的指标。更多还原

【Abstract】 The relationship among interfacial dilatational modulus,zeta potential and the stability of emulsified asphalt was investigated by measuring interfacial dilatational modulus and zeta potential of self-made emulsifier A and B.When the concentration of self-made emulsifier A and B was 100 mg/L and 50 mg/L respectively,the elasticity of interfacial film was the largest.When the dosage of emulsifier A and B was 2.8% and 1.2% respectively,the emulsified asphalt presented the maximum Zeta potential absolute value and the best storage stability.Thus,the interfacial dilatational modulus and zeta potential has a good correspondence to the storage stability of emulsified asphalt,so both can be used as an indicators of evaluation of the emulsifier merits and determination of emulsifier optimal dosage.更多还原