I. I-Oli yeNdalo (oko kukuthi i-Oli yeembotyi zeSoya, i-Oli yombona, njl.njl.)
II.Utywala beCarbon ephezulu
III.Polyether Antifoamers
IV.Polyether Modified Silicone
...iSahluko esidlulileyo ngeenkcukacha.
V. Organic Silicon Antifoamer
I-Polydimethylsiloxane, eyaziwa ngokuba yioli ye-silicone, iyona nto iphambili ye-silicone defoamer.Xa kuthelekiswa namanzi kunye neoyile eqhelekileyo, ukunyanzeliswa komphezulu wayo kuncinci, okufanelekileyo kuzo zombini inkqubo yogwebu olusekelwe kumanzi kunye neoyile-based foaming system.Ioli ye-Silicone inomsebenzi ophezulu, ukunyibilika okuphantsi, iipropathi zekhemikhali ezizinzile, uluhlu lwesicelo esilula, ukuguquguquka okuphantsi, okungeyona ityhefu, kunye nokukwazi ukukhupha amagwebu.Okungalunganga kukungasebenzi kakuhle kokuthintela amagwebu.
1. I-Antifoamer eqinile
I-Antifoamer eqinile ineempawu zokuzinza okulungileyo, inkqubo elula, ukuthutha okulula kunye nokusetyenziswa okulula.Ifanelekile kwisigaba se-oyile kunye nesigaba samanzi, kwaye uhlobo oluphakathi lwe-dispersion luvelele.Isetyenziswa kakhulu kwintsimi ye-foam ephantsi okanye engekho i-foam yokuhlamba umgubo.
2. I-Emulsion Antifoamer
Ioli ye-silicone kwi-emulsion defoamer inoxinzelelo olukhulu, kwaye i-emulsification coefficient inkulu kakhulu.Nje ukuba i-emulsifier ikhethwe ngokungafanelekanga, iya kubangela ukuba i-arhente yokukhupha amagwebu ibekwe kunye ne-metamorphic ngexesha elifutshane.Ukuzinza kwe-emulsion kubaluleke kakhulu kumgangatho we-ejenti yokukhupha amagwebu.Ngoko ke, ukulungiswa kohlobo lwe-emulsion ye-silicone defoamer igxile ekukhethweni kwe-emulsifier.Kwangaxeshanye, i-emulsion defoamer inomthamo omkhulu we-silicone defoamer eneempawu zexabiso eliphantsi, ububanzi besicelo, isiphumo esicacileyo sokwenza amagwebu, njalo njalo.Ngenkqubela phambili yeteknoloji yokuqulunqa, i-emulsion defoamer iya kuphuhlisa kakhulu.
3. Isisombululo seAntifoamer
Isisombululo esenziwe ngokuchithwa kweoli ye-silicone kwi-solvent.Umgaqo wayo wokuhlamba ugwebu kukuba iinqununu zeoli ye-silicone zithwalwa yi-solvent kwaye zihlakazwe kwisisombululo esinamagwebu.Kule nkqubo, i-oyile ye-silicone iya kuthi ngokuthe ngcembe ijiyane ibe ngamathontsi ukuze igqibe ukubola.Ioli yeSilicone inyibilikiswe kwi-non-aqueous organic solution solution, njenge-polychloroethane, toluene, njl., ingasetyenziswa njengesisombululo se-oyile defoaming.
4. I-Antifoamer yeoli
Inxalenye ephambili ye-oil defoamer yi-dimethyl silicone oil.Ioli ye-silicone ecocekileyo ye-dimethyl ayinayo i-defoaming effect kwaye kufuneka ifakwe emulsified.Ukunyanzeliswa komphezulu we-silicone emulsified kuncipha ngokukhawuleza, kwaye isixa esincinci sinokufikelela ekuqhekekeni okunamandla kunye nokuvinjwa kwe-foam.Xa ioli ye-silicone ixutywe kunye nenxalenye ethile yabancedisi be-silica ephathwa nge-hydrophobically, i-oil compound defoamer inokuqulunqwa.I-silicon dioxide isetyenziselwa ukuzalisa, kuba inani elikhulu lamaqela e-hydroxyl kumphezulu walo linokunyusa amandla okusasazwa kweoli ye-silicone kwi-foaming system, ukwandisa ukuzinza kwe-emulsion, kwaye ngokucacileyo kuphuculwe ipropathi ye-defoamer ye-silicone defoamer.
Ngenxa yokuba ioli ye-silicone i-lipophilic, i-silicone defoamer inesiphumo esihle kakhulu sokwenza amagwebu kwisisombululo esinyibilikayo se-oyile.Nangona kunjalo, ezi ngongoma kufuneka zinikwe ingqalelo xa usebenzisa i-silicone defoamer:
● I-viscosity ephantsi ye-silicone defoamer ine-defoamer enhle, kodwa ukuzingisa kwayo kubi;I-silicone ye-viscosity ephezulu ye-viscosity defoamer inesiphumo esicothayo sokwenza amagwebu kodwa ukuzingisa okuhle.
● Ukuba i-viscosity yesisombululo sogwebu iphantsi, kungcono ukhethe i-silicone defoamer ene-viscosity ephezulu.Ngokuchasene noko, ukuphakama kwe-viscosity yesisombululo sogwebu, kungcono ukhethe i-silicone defoamer ene-viscosity ephantsi.
● Ubunzima be-molecular of oily silicone defoamer bunempembelelo ethile kwi-defoaming effect yayo.
● I-defoamer enobunzima obuphantsi be-molecular kulula ukusabalalisa kunye nokuchithwa, kodwa ukungabikho kokuzingisa.Ngokuchasene noko, ukusebenza kwe-defoamer ephezulu ye-molecular weight defoamer kunzima, kwaye i-emulsification inzima, kodwa ukunyibilika akubi kwaye ukuqina kulungile.
Ixesha lokuposa: Nov-19-2021