Defoamer na ƙarni na uku shine defoamer na silicone bisa polydimethylsiloxane (PDMS, dimethyl silicone oil).A halin yanzu, bincike da aikace-aikacen wannan ƙarni na masu lalata foam ɗin sun fi mayar da hankali ne a kasar Sin.PDMS ya ƙunshi silicon oxygen sarkar da sauran kwayoyin kungiyoyin, kuma ba za a iya tam shirya a kan kumfa ruwa film, sabõda haka, kumfa zai fashe.Ƙananan danko PDMS yana da kyawawan kayan lalata kuma babban danko PDMS yana da kyawawan kayan lalata kumfa.
Fa'idodin silicone defoamer
Yana da inertia sinadarai mai kyau kuma yana da wahalar amsawa tare da wasu abubuwa.Ana iya amfani dashi a cikin maganin acid, alkali da gishiri.
Kyakkyawan inertia na ilimin lissafi, ana iya amfani dashi a cikin masana'antar abinci da magunguna, kuma ba shi da gurɓataccen yanayi.
Yana da kwanciyar hankali na thermal mai kyau da ƙarancin ƙarfi, kuma ana iya amfani dashi a cikin kewayon zafin jiki mai faɗi.
Danko yana da ƙasa kuma yana bazuwa cikin sauri a ma'aunin ruwan gas.
Tashin hankali ƙasa kamar 1.5-20 Mn / M (76 Mn / m na ruwa).
Ba abu mai sauƙi ba ne don narkewa ta hanyar surfactant a cikin tsarin kumfa.
Low sashi, low danko da low flammability.
Rashin hasara na silicone defoamer
1. Yana da wuya a watse a cikin tsarin ruwa.
2. Saboda yana narkewa a cikin man fetur, an rage tasirin lalata a cikin tsarin mai.
3. Rashin ƙarfin juriya na zafin jiki.
4. Rashin juriya ga karfi alkalinity.
Babban farashi:PDMS wani ruwa ne a cikin mai (O/W) emulsion wanda aka yi da man shafawa na silicone, emulsifier, thickener, da dai sauransu, wanda ruwa ke haɓakawa.Tashin hankalin saman yana raguwa da sauri kuma yana da ƙarfi anti kumfa da kuma maganin kumfa.Yana da kusan kashi uku formulations: Silicone oil, silicone oil + modified polyether and polyether modified silicone oil.
Yana da siffa da:Low surface tashin hankali, high surface aiki da kuma karfi defoaming ikon.
Ƙananan sashi:Yana iya hanawa da karya kumfa don yawancin kafofin watsa labarai na kumfa.Yana da kyakkyawan kwanciyar hankali na thermal kuma ana iya amfani dashi a cikin kewayon zafin jiki mai faɗi.An raba shi tare da polyether kuma yana da tasirin synergistic.Ana amfani da shi sosai don lalata kumfa a cikin wanka, yin takarda, ɓangaren litattafan almara, yin sukari, yin amfani da wutar lantarki, takin sinadarai, ƙari, jiyya na ruwa da sauran hanyoyin samarwa.A cikin masana'antar man fetur, ana amfani da shi sosai don desulfurization na iskar gas don hanzarta rabuwa da iskar gas;Hakanan ana amfani dashi don sarrafawa ko danne kumfa a cikin na'urori kamar bushewar ethylene glycol, hakar hydrocarbon aromatic, sarrafa kwalta da lubricating mai.A cikin masana'antar masana'anta, ana amfani da shi don lalata kumfa a cikin rini, zazzagewa, girma da sauran matakai;Ana amfani da shi a cikin tsarin emulsion na sinadarai da defoaming a cikin masana'antu;Ana amfani da defoaming a daban-daban maida hankali, fermentation da distillation matakai a cikin abinci masana'antu.
Lokacin aikawa: Mayu-05-2022