I. Mafuta achilengedwe (monga Mafuta a Soya, Mafuta a Chimanga, ndi zina zotero)
II. Mowa Wambiri wa Carbon
III. Zoletsa Thovu za Polyether
IV. Silikoni Yosinthidwa ya Polyether
...mutu wapitawo Mtundu wa Zoletsa Kutulutsa Mafoam (1) kuti mudziwe zambiri.
V. Chotsukira thovu cha Silicon chachilengedwe
Polydimethylsiloxane, yomwe imadziwikanso kuti mafuta a silicone, ndiye chinthu chachikulu chomwe chimagwiritsidwa ntchito popanga silicone defoamer. Poyerekeza ndi madzi ndi mafuta wamba, mphamvu yake ya pamwamba ndi yaying'ono, yomwe ndi yoyenera kugwiritsa ntchito njira yopangira thovu yochokera m'madzi komanso njira yopangira thovu yochokera m'mafuta. Mafuta a silicone ali ndi ntchito zambiri, kusungunuka kochepa, mphamvu zokhazikika za mankhwala, kupepuka, kusinthasintha kochepa, osati poizoni, komanso kuthekera kochotsa thovu. Choyipa chake ndi kuchepa kwa ntchito yoletsa thovu.

1. Chotsukira thovu cholimba
Chotsukira Cholimba Chotsukira Cholimba chili ndi kukhazikika bwino, njira yosavuta, kunyamula kosavuta komanso kugwiritsa ntchito mosavuta. Ndi choyenera pa gawo la mafuta ndi gawo la madzi, ndipo mtundu wa kufalikira kwapakati ndi wodziwika bwino. Chimagwiritsidwa ntchito kwambiri pantchito yotsuka thovu lochepa kapena lopanda thovu.

2. Chotsukira thovu cha Emulsion
Mafuta a silicone mu emulsion defoamer amakhala ndi mphamvu zambiri, ndipo emulsification coefficient ndi yayikulu kwambiri. Emulsifier ikasankhidwa molakwika, imapangitsa kuti emulsion agent isinthe mawonekedwe ake ndikusanduka mtundu pakapita nthawi. Kukhazikika kwa emulsion ndikofunikira kwambiri pa mtundu wa emulsion agent. Chifukwa chake, kukonzekera emulsion type silicone defoamer kumayang'ana kwambiri kusankha emulsifier. Nthawi yomweyo, emulsion defoamer ili ndi mlingo waukulu kwambiri mu silicone defoamer yokhala ndi makhalidwe monga mtengo wotsika, kuchuluka kwa ntchito, mphamvu yowonekera ya emulsion defoamer, ndi zina zotero. Ndi kupita patsogolo kwa ukadaulo wopanga, emulsion defoamer idzakula kwambiri.

3. Yankho la Antifoam
Ndi yankho lopangidwa mwa kusungunula mafuta a silicone mu solvent. Mfundo yake yochotsera poizoni ndi yakuti zigawo za mafuta a silicone zimanyamulidwa ndi solvent ndikufalikira mu solution ya thovu. Munjira iyi, mafuta a silicone amasungunuka pang'onopang'ono kukhala madontho kuti athetse poizoni. Mafuta a silicone osungunuka mu njira yosakhala yamadzi ya organic, monga polychloroethane, toluene, ndi zina zotero, angagwiritsidwe ntchito ngati solution ya mafuta yochotsera poizoni.

4. Chotsukira Mafuta
Gawo lalikulu la mafuta ochotsera poizoni ndi mafuta a dimethyl silicone. Mafuta a dimethyl silicone oyera alibe mphamvu yochotsera poizoni ndipo amafunika kuchotsedwa poizoni. Kuthamanga kwa pamwamba pa silicone yochotsera poizoni kumachepa mofulumira, ndipo pang'ono kumatha kupangitsa kuti thovu lisweke komanso kuletsa thovu. Mafuta a silicone akasakanizidwa ndi gawo lina la othandizira silica ochiritsidwa ndi hydrophobic, mafuta ochotsera poizoni amatha kupangidwa. Silicon dioxide imagwiritsidwa ntchito ngati chodzaza, chifukwa kuchuluka kwa magulu a hydroxyl pamwamba pake kumatha kuwonjezera mphamvu yofalitsira mafuta a silicone mu dongosolo lotulutsa thovu, kuwonjezera kukhazikika kwa emulsion, ndikuwonjezera mphamvu yochotsera poizoni ya silicone defoamer.

Popeza mafuta a silicone ndi opindulitsa kwambiri, silicone defoamer ili ndi mphamvu yabwino kwambiri yochotsera poizoni pa yankho losungunuka ndi mafuta. Komabe, mfundo izi ziyenera kuganiziridwa mukamagwiritsa ntchito silicone defoamer:

● Chotsukira cha silicone chotsika kwambiri chimakhala ndi mphamvu yabwino yochotsa poizoni, koma chimakhala cholimba; Chotsukira cha silicone chotsika kwambiri chimakhala ndi mphamvu pang'onopang'ono yochotsera poizoni koma chimakhala cholimba bwino.
● Ngati kukhuthala kwa yankho la thovu kuli kotsika, ndi bwino kusankha silicone defoamer yokhala ndi kukhuthala kwakukulu. M'malo mwake, kukhuthala kwa yankho la thovu kuli kokwera, ndi bwino kusankha silicone defoamer yokhala ndi kukhuthala kochepa.
● Kulemera kwa molekyulu ya silicone defoamer yamafuta kumakhudza kwambiri mphamvu yake yochotsera poizoni.
● Chotsukira mpweya chokhala ndi kulemera kochepa kwa mamolekyulu n'chosavuta kufalitsa ndi kusungunula, koma sichilimbikira. M'malo mwake, ntchito yotsukira mpweya ya chotsukira mpweya chokhala ndi kulemera kwakukulu kwa mamolekyulu ndi yofooka, ndipo emulsification ndi yovuta, koma kusungunuka kwake ndi kofooka ndipo kulimba kwake ndi kwabwino.