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以高碳醇、植物油脂和消泡颗粒为主消泡成分,聚醚改性聚硅氧烷为增效助剂,磺化油脂、斯潘-80和吐温-80为复合乳化剂体系,制得聚醚改性聚硅氧烷消泡剂。同时探讨了在不同温度下,该消泡剂应用于抄纸白水中的消泡效果。通过与国内外产品对比,自制产品具有更优越的消泡/抑泡和快速消除细微泡沫的能力。 相似文献
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现代工业生产中,泡沫无处不在,最直接的解决方式就是使用消泡剂,消泡剂随着消泡过程会逐渐丧失消泡与抑泡能力,导致工业生产稳定性差。低泡沫的表面活性剂则从根本上解决了泡沫的困扰。介绍了目前规模化应用几种低泡沫表面活性剂的性能、生产与应用等,包括EO/PO嵌段聚醚、异辛醇磷酸酯衍生物、聚醚改性有机硅以及乙氧基化脂肪酸甲酯衍生物四大类。 相似文献
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研究了皂基、有机硅和聚醚三种消泡剂以及配方结构对洗衣液泡沫的影响。结果表明,皂基消泡剂的消泡能力较差,但有良好的抑泡能力;有机硅消泡剂消泡能力极好,但无抑泡能力;聚醚消泡剂无显著的消泡、抑泡能力;以上三种消泡剂两两组合复配,消泡、抑泡效果均好于单独使用一种消泡剂,且在各种组合中效果最好。配方中,非离子或直链烷基苯磺酸钠的比例越高,消泡、抑泡效果越好。 相似文献
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用于P-PVC装置新型消泡剂的筛选 总被引:2,自引:1,他引:1
针对PVC生产装置单体回收时间长,回收系统“泡沫夹带”严重的现状,决定采用新型,高效的消泡剂来消除泡沫捕集器,间歇汽提器和连续汽提器中的泡沫。采用德国高施米特公司的消泡剂评价试验装置,对收集的消泡剂样品进行了消泡,抑泡性能测定。实验结果SPJ ̄301消泡剂具有良好的消泡,抑泡性能,并且对聚合浆料的稳定性和树脂质量无影响。 相似文献
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王子千 《中国洗涤用品工业》2013,(5):54-58
现代工业生产中,泡沫无处不在,最直接的解决方式就是使用消泡剂,消泡剂随着消泡过程进行逐渐丧失消泡与抑泡能力,导致工业生产稳定性差。低泡沫的表面活性剂则从根本上解决了泡沫的困扰,文章介绍了目前规模化应用几种低泡沫表面活性剂的性能、生产与应用等,包括EO/PO嵌段聚醚、异辛醇磷酸酯衍生物、乙氧基化脂肪酸甲酯衍生物以及聚醚改性有机硅四大类。 相似文献
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本文采用Langmuir槽方法,研究了树枝状支链破乳剂多胺聚醚和线型支链破乳剂酚醛树脂聚醚的界面张力及界面扩张流变性质。研究发现:两种破乳剂都有较强的界面活性,树枝状的多胺聚醚不容易在界面上紧密排列,降低界面张力能力比酚醛树脂聚醚低。两种聚醚破乳剂的界面模量随浓度变化通过一个极大值,酚醛树脂聚醚更容易在界面上紧密排列,出现最大模量的浓度为10mg/L,远低于多胺聚醚的50mg/L。线型的酚醛树脂聚醚具有较强的顶替作用,界面膜性质主要由酚醛树脂聚醚决定;树枝状的多胺聚醚与原油中活性组分形成混合吸附膜,不利于破乳。 相似文献
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以烯丙醇聚氧乙烯聚氧丙烯醚(FB)、长链烷基酯与含氢硅油(PHMS)通过Si-H加成反应,合成了有机硅高聚物(改性硅油),用IR和1HNMR对其结构进行了表征。将改性硅油作为活性成分,制备了有机硅消泡剂。探讨了长链烷基酯链段长短对其稳定性、表面张力、消抑泡性能的影响。结果表明:甲基丙烯酸十四烷基酯与烯丙醇聚醚共改性硅油所制消泡剂稳定性强,粒径分布最均匀,主要集中在260 nm处,消抑泡效果最优,其在质量分数为5%的十二烷基苯磺酸钠溶液中消泡时间为6 s,在质量分数为5%洗衣粉溶液中消泡时间为4 s,在黑液溶液中(质量分数为30%木质素)消泡时间为12 s,消抑泡性能优于国内(RX-504)与德国(850E)消泡剂产品。 相似文献
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Surface dilational rheological behavior and foam stability of starch/surfactant mixed solutions were studied at differ-ent starch concentrations and constant surfactant concentration. The results show that dilational viscoelasticity modulus, dilational elasticity modulus and dilational viscosity modulus increase with the concentration of starch particles. Foam stability increases with dilational viscoelasticity. Foam strength also increases with starch concentra-tion. Starch particles play a positive effect on foam stability and dilational viscoelasticity and the effect becomes more significant as drainage proceeds. Film pictures indicate that the film with 20%(by mass) starch particles is thicker than that without starch. Starch particles gather in Plateau border and resist drainage, making the foam more stable. ? 2014 The Chemical Industry and Engineering Society of China, and Chemical Industry Press. Al rights reserved. 相似文献
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Surface dilational rheological behavior and foam stability of starch/surfactant mixed solutions were studied at differ-ent starch concentrations and constant surfactant concentration. The results show ... 相似文献
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介绍湿法磷酸生产过程中起泡现象及其危害,以及消泡方法;着重对湿法磷酸生产用的几类消泡剂的研究与应用现状进行了总结;分析湿法磷酸生产中消泡技术存在的问题,提出研究改性消泡剂和复配型消泡剂对湿法磷酸的适应性将是今后的研究方向。 相似文献
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Zhenghong Chen Pingping Zhang Yimeng Sun Ce Wang Baocai Xu 《Journal of surfactants and detergents》2019,22(6):1477-1485
Amino acid-based surfactants are environmentally friendly surfactants, which have aroused increasing interest. In the application of amino acid-based surfactants, they are often compounded with other kinds of surfactants to obtain formulations that meet certain requirements. Herein, sodium lauroyl glycinate (C12-Gly-Na) was selected as a representative amino acid-based surfactant to compound with an anionic surfactant (sodium dodecyl sulfate [SDS]), a cationic surfactant (dodecyl trimethyl ammonium Bromide), and a nonionic surfactant (Triton X-100: p-octyl polyethylene glycol phenyl ether). Surface tension measurements and interfacial dilational rheological experiments were performed to study the interfacial behaviors of C12-Gly-Na and its mixtures. The results show that mixture systems have better interfacial activity than individual C12-Gly-Na and there is an obvious synergy between C12-Gly-Na and C12TAB under strong electrostatic attraction. Thus, the C12-Gly-Na/C12TAB mixture shows lower critical micelle concentration (CMC) and γCMC and higher dilational modulus than the individual surfactants. Besides, the film formed by the C12-Gly-Na/C12TAB mixture has higher viscoelasticity than single C12-Gly-Na and its mixtures with SDS and TX-100. With the increase of bulk concentration, the dilational moduli of C12-Gly-Na, C12-Gly-Na/SDS, and C12-Gly-Na/TX-100 run through two maxima, while, due to stronger electrostatic attraction, only one maximum appears in the C12-Gly-Na/C12TAB system. The study of the interfacial properties of amino acid surfactant and its mixtures with other surfactants provides a theoretical foundation for potential applications in cosmetic, food processing, and daily chemical industries. 相似文献
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二甲基硅油及其衍生物在消泡帮领域的研究进展 总被引:1,自引:0,他引:1
二甲基硅油由于其良好的化学惰性和低表面张力,广泛应用于消泡剂领域。聚醚改性硅油和氟改性硅油作为二甲基硅油的两种主要衍生产物,具有更强的消、抑泡能力。本论文重点介绍了二甲基硅油消泡剂、聚醚改性硅油消泡剂、氟改性硅油消泡剂的特性、制备方法及应用。 相似文献