Development and present situation of organosilicon defoamers
Quincke, a German experimental physicist, first proposed chemical methods for defoaming, such as eliminating soap bubbles with ether vapor. J. Plateau, a colloidal chemist in the 19th century, had delighted in encouraging the study of foamability of liquids, proposing that foamability with low surface tension and high viscosity was strong. Sasaki Kota, a Japanese colloid chemist, began to study the bubble before the two World War. After the war, he published many articles and became an expert on defoaming. During World War II, S. Ross, an American colloidal chemist, studied the defoaming of lubricants. After World War II, he published many studies on defoaming, which made outstanding contributions to the mechanism of defoaming agents.
In 1952, C.C. Currie of Dow Corning Company of the United States made a large-scale collation of the defoamer literature at that time, and made a comprehensive and systematic study of defoaming technology in papermaking, fermentation, boilers, etc. In 1954, Wangnd-ott Company first put into production polyether defoamer in the United States, which has developed rapidly. However, extensive application and research began with the development of polyether industry in recent years.
In the 1950s, China began to explore the defoaming problem in the fermentation and paper industry. In the early 1960s, China began to systematically study the defoaming problem of lubricating oil and transmission oil, which is helpful to the development of aircraft, diesel locomotives, warships and cars. Later, papermaking, printing and dyeing, fermentation, natural gas desulfurization, concrete and other aspects were studied.