摘要
采用SiO2纳米颗粒分别与阴离子表面活性剂十二烷基硫酸钠(SDS)、阳离子表面活性剂十六烷基三甲基溴化铵(CTAB)、非离子表面活性剂十二烷基醇聚氧乙烯(3)醚(AEO-3)复配制备水相泡沫,研究了发泡体积、半衰期和微观结构的变化规律,以揭示SiO2纳米颗粒对水相泡沫稳定性的影响机理。结果表明,在表面活性剂质量分数一定的条件下,随着纳米颗粒质量分数的增加,泡沫稳定性逐渐增强,当纳米颗粒质量分数为0.3%时,发泡体积达最大值,含气率分别为78.9%,78.4%和78.8%。与单组分质量分数分别为0.3%,0.3%和15%的SDS、CTAB、AEO-3体系相比,发泡体积未受影响,半衰期分别为9.0,8.2和360min,提高了20%,28.1%和71.4%,泡沫的稳定性得到了不同程度的改善。
SiO2 nanoparticles was mixed with anionic surfactant sodium dodecyl sulfate(SDS),cationic surfactant cetyltrimethylammonium bromide(CTAB)and nonionic surfactant dodecyl alcohol polyoxyethylene(3)ether(AEO-3),respectively,to prepare the aqueous foams thereof.The variations of foaming volume,half-life and microstructure were determined to reveal the influence of SiO2 nanoparticles on the stability of aqueous foams.The results showed that when the mass fraction of the surfactant is constant,the foam stability gradually increase with the increase of the mass fraction of nanoparticles.When the mass fractions of the nanoparticles are 0.3%,the foaming volumes reached maxima with gas contents of 78.9%,78.4%and 78.8%,respectively.Compared with the single systems of SDS,CTAB and AEO-3 at surfactant concentrations of 0.3%,0.3%and 15%,respectively,these experimentally prepared foams did not affect the foaming volumes but the foam stability had been variously improved(the half-lives are 9.0 min,8.2 min and 360 min,which are increase by 20%,28.1%and 71.4%,respectively).
作者
张阳
燕永利
奚琪
于长龙
寇卫伟
ZHANG Yang;YAN Yong-li;XI Qi;YU Chang-long;KOU Wei-wei(College of Chemistry&Chemical Engineering,Xi’an Shiyou University,Xi’an,Shanxi 710065,China;Changqing Oilfield Company Oil Production Plant No.10 Oil Production Technology Research Institute,PetroChina Company Limited,Qingcheng,Gansu 745100,China)
出处
《日用化学工业》
CAS
CSCD
北大核心
2020年第1期26-31,共6页
China Surfactant Detergent & Cosmetics
基金
国家自然科学基金资助项目（21773183）
陕西省自然科学基金资助项目（2018JM2011）
