CAJ | 학술논문

油酸盐中含有酸碱敏感性羧酸官能团，因而可实现泡沫的酸碱循环利用。通过Wa-ring-Blender法、酸碱滴定测试、表面与界面张力测试、微观分析等研究手段，分析了pH值变化对油酸盐水溶液性质、油酸盐羧酸官能团电离度以及油酸盐发泡性能的影响。同时，开展了6次泡沫循环实验，并从微观现象解释以及“铺展与架桥”理论对其消泡机理进行了深入分析。研究结果表明，油酸盐中的羧酸官能团通过失去或得到质子来实现活性与非活性之间的可逆转换，从而实现泡沫的循环利用。此外，通过消泡机理分析可以看出，氢离子的侵入可以促进油酸盐泡沫结构中非水溶性油酸的形成，并进入泡沫液膜结构，通过铺展或架桥作用使得液膜破裂，从而达到消泡的作用。
유산염중함유산감민감성최산관능단，인이가실현포말적산감순배이용。통과Wa-ring-Blender법、산감적정측시、표면여계면장력측시、미관분석등연구수단，분석료pH치변화대유산염수용액성질、유산염최산관능단전리도이급유산염발포성능적영향。동시，개전료6차포말순배실험，병종미관현상해석이급“포전여가교”이론대기소포궤리진행료심입분석。연구결과표명，유산염중적최산관능단통과실거혹득도질자래실현활성여비활성지간적가역전환，종이실현포말적순배이용。차외，통과소포궤리분석가이간출，경리자적침입가이촉진유산염포말결구중비수용성유산적형성，병진입포말액막결구，통과포전혹가교작용사득액막파렬，종이체도소포적작용。
The acid and alkali circulation utilization of foam can be realize due to the exist of pH-sensitivity carboxyl groups in oleate .With methods of Warning-blender ,acid-base titration test ,surface tension and interfacial tension test and microscopic analysis ,etc .,the effects of pH values change on aqueous solution properties of oleate ,ionization degree of carboxyl group of ole-ate ,and foaming properties of oleate were analyzed .Meanwhile ,six foam circulation experi-ments have been carried out ,and defoaming mechanism was discussed through explanation of mi-croscopic phenomena ,spreading and bridging mechanisms .The results show that carboxyl group of oleate can easily lose or receive protons to realize the reversible interconversions between active and inactive ,further to realize circulation utilization of foam .Also ,the defoaming mechanism a-nalysis suggests that the invasion of hydrogen ions can lead to form water insoluble oleic acid of foam structure of oleate ,and into the foam liquid films structure ,facilitate liquid films rupture through spreading or bridging action ,so as to achieve the effect of defoaming .