【摘要】 研究了bola型表面活性剂———聚丙二醇二乙酸钠在纳米碳酸钙上的吸附行为,并考察了疏水链长度、无机盐加入对吸附的影响,结果表明聚丙二醇二乙酸钠的吸附等温线为LS型,是多分子层吸附;疏水链的增长、无机盐的加入均可使聚丙二醇二乙酸钠在纳米碳酸钙表面的吸附更易达到吸附饱和。更多还原

【Abstract】 The adsorption behavior of a new bola surfactants———Polypropylene glycol bis-sodium acetate on nano-CaCO3/water interface was investigated.The effects of hydrophobic alkyl chain and inorganic salt on adsorption were also been investigated.The results showed that the adsorption isotherm of polypropylene glycol bis-sodium acetate was LS type.The adsorption ability could be strengthened by growing hydrophobic chain or adding salt.更多还原