相较于传统的高耗能机械排雾法或是全氟表活消泡剂降酸雾的方法,本研究在不引入其他小分子的条件下,利用聚合物微球矩阵,有效地耗散了含电解气体的酸雾气泡从底部上浮的动能,同时球间的微细孔径在保证电解气体(氢气或氧气)顺利排出的同时,抑制气泡炸裂后酸雾的微液滴向空气中扩散,最终实现对酸雾的抑制。本研究对影响聚合物微球矩阵的孔隙率及球间距的影响因素(微球粒径及多粒径微球组合)进行了分析,最终建立其与抑雾效率之间的关系;同时分析了微球矩阵厚度对最终抑雾效率的影响。
Compared with the traditional high-energy-consuming mechanical mist removal method or the perfluorinated surface active defoamer method to reduce acid mist,this study used a matrix of porous microspheres suspended in polymer microspheres,without introducing other small molecules.It effectively dissipated the kinetic energy of the acid mist bubbles containing the electrolytic gas floating from the bottom,and meantime the micro-pore diameter between the balls ensured the smooth discharge of the electrolytic gas (hydrogen or oxygen) and suppressed the micro-droplets of the acid mist from spreading into the air after the bubble burst,which finally realized the suppression of the acid mist.In this study,the factors affecting the porosity and ball spacing of the polymer microsphere matrix (microsphere size and combination of multi-particle microspheres) were investigated,and the relationship with the mist suppression efficiency was finally established.The influence of the thickness of the microsphere matrix on the final fog suppression efficiency was analyzed.
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基金资助
国家自然科学基金(51863011,21577053)
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