文章摘要
杜杰,黎冰,马文昊.高起泡性和稳泡性蛋白基发泡剂的研制[J].精细化工,2020,37(11):0
高起泡性和稳泡性蛋白基发泡剂的研制
Preparation of protein-based foaming agent with high foaming stability and ability
投稿时间:2020-04-17  修订日期:2020-06-05
DOI:
中文关键词: 明胶  发泡剂  稳泡性能  起泡性能  气泡混合轻质土  密度  强度
英文关键词: gelatin, foaming agent, foaming stability, foaming ability, air-foam treated lightweight soil, density  compressive strength
基金项目:国家杰出青年科学基金;国家自然科学基金项目(面上项目,重点项目,重大项目)
作者单位E-mail
杜杰 东南大学 1252849901@qq.com 
黎冰 东南大学 lbershui@seu.edu.cn 
马文昊 东南大学  
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中文摘要:
      以碱性蛋白酶催化水解明胶制备了发泡剂母液,并与十二烷基苯磺酸钠和脂肪醇聚氧乙烯醚硫酸钠复配,制得多种新型蛋白基发泡剂。基于气泡指标对这些发泡剂进行初选,并利用初选后的发泡剂制备气泡混合轻质土试样,测定了试样的密度。结合气泡性能指标和试样密度确定的性能最优的发泡剂配方是自制发泡剂F-6(明胶10%、十二烷基苯磺酸钠11.4%、脂肪醇聚氧乙烯醚硫酸钠12.6%)和F-7(明胶10%、十二烷基苯磺酸钠7.8%、脂肪醇聚氧乙烯醚硫酸钠15.4%)。这两种发泡剂的1 h消泡占比分别为52.52%和53.18%,发泡倍数分别为82.61和81.66,综合性能优于一般市售发泡剂,且制出的试样密度较小,强度可达4MPa,完全满足工程要求。
英文摘要:
      An alkaline protease was used to catalyze the hydrolysis of gelatin to prepare base solution of the foaming agent, and it was compounded with sodium dodecylbenzenesulfonate and fatty alcohol polyoxyethylene ether sodium sulfate to prepare a variety of new protein-based foaming agents. These foaming agents were preselected based on the foam indexes, and then air-foam treated lightweight soil samples were prepared using these foaming agents. Then the densities of these samples were measured. According to foam indexes and sample densities, the best foaming agents are the homemade foaming agent F-6 (10% gelatin, 11.4% sodium dodecylbenzenesulfonate, 12.6% fatty alcohol polyoxyethylene ether sodium sulfate ) and F-7 (10% gelatin, 7.8% sodium dodecylbenzenesulfonate, 15.4% fatty alcohol polyoxyethylene ether sodium sulfate). The 1 hour defoaming ratio of these two foaming agents is 52.52% and 53.18%, respectively, and the foaming multiples are 82.61 and 81.66, respectively. The comprehensive performance of these two foaming agents is better than that of general commercially available foaming agents, and the densities of the samples were relatively small.The compressive strength can reach 4MPa, fully meeting the engineering requirements.
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