Li-antifoam li sebelisetsoa ho fokotsa tsitsipano ea metsi, tharollo le ho emisa, ho thibela ho thehoa ha foam, kapa ho fokotsa foam e entsoeng nakong ea tlhahiso ea indasteri. Li-antifoamers tse tloaelehileng ke tse latelang:

I. Oli ea Tlhaho (ke hore Oli ea Soybean, Oli ea Poone, joalo-joalo)

Melemo: e fumaneha, e theko e tlaase ebile e bonolo ho e sebelisa;

Mefokolo: ho bonolo ho senyeha le ho eketsa boleng ba asiti haeba e sa bolokoe hantle.

II.Joala bo phahameng ba Carbon

Altaho e phahameng ea carbon ke molek'hule ea mela e nang le hydrophobicity e matla le hydrophilicity e fokolang, e leng antifoamer e sebetsang tsamaisong ea metsi. Phello e thibelang maqeba ea joala e amana le ho qhibiliha ha eona le ho hasana ha eona ka tharollo e phophomang. Joala ba C7 ~ C9 ke Antifoamers e sebetsang ka ho fetisisa. Alcohol e phahameng ea carbon ea C12 ~ C22 e lokiselitsoe ka li-emulsifiers tse loketseng tse nang le boholo ba likaroloana tsa 4 ~ 9μm, tse nang le 20 ~ 50% emulsion ea metsi, ke hore, defoamer tsamaisong ea metsi. Li-ester tse ling li boetse li na le phello ea antifoaming ho belisoa ha penicillin, joalo ka phenylethanol oleate le lauryl phenylacetate.

III.Polyether Antifoamers

1. GP Antifoamers

E entsoe ka ho eketsa polymerization ea propylene oxide, kapa motsoako oa ethylene oxide le propylene oxide, ka glycerol e le moemeli oa ho qala. E na le hydrophilicity e fokolang le ho qhibiliha ho tlase sebakeng se phophomang, kahoo e loketse ho sebelisoa mokelikeli o mosesaane o belisoang. Kaha matla a eona a ho thibela makhopho a phahame ho feta a ho ntša lefome, e loketse ho eketsoa ka har'a basal medium ho thibela mokhoa o phoroselang oa tšebetso eohle ea ho belisoa.

2. Li-Antifoams tsa GPE

Ethylene oxide e eketsoa qetellong ea polypropylene glycol chain link ea GP Antifoamers ho etsa polyoxyethylene oxypropylene glycerol e nang le hydrophilic end. GPE Antifoamer e na le hydrophilicity e ntle, bokhoni bo matla ba antifoaming, empa hape e na le ho qhibiliha ho hoholo ho bakang nako e khuts'oane ea tlhokomelo ea ts'ebetso ea antifoaming. Ka hona, e na le phello e ntle ho moro oa viscous fermentation.

3. GPEs Antifoamers

Block copolymer e nang le liketane tsa hydrophobic lipheletsong ka bobeli le liketane tsa hydrophilic li thehoa ka ho tiisa pheletso ea ketane ea GPE Antifoamers ka hydrophobic stearate. Limolek'hule tse nang le sebopeho sena li atisa ho bokana ka har'a sebopeho sa mokelikeli oa khase, kahoo li na le ts'ebetso e matla ea holim'a metsi le ts'ebetso e kholo ea ho tlosa lekoba.

IV.Silicone e fetotsoeng ea polyether

Polyether Modified Silicone Antifoamers ke mofuta o mocha oa li-defoam tse sebetsang hantle haholo. E na le litšenyehelo tse ngata ka melemo ea ho qhalakanngoa ho hotle, bokhoni bo matla ba ho thibela foam, botsitso, bo se nang chefo le bo se nang kotsi, bo sa tsitsang le bo matla ba Antifoamers. Ho latela mekhoa e fapaneng ea khokahano ea kahare, e ka aroloa ka mekhahlelo e 'meli e latelang:

1. Copolymer e nang le -Si-OC- bond e lokisitsoeng ka acid e le catalyst. Defoamer ena e bonolo ho hydrolysis mme e na le botsitso bo fokolang. Haeba amine buffer e le teng, e ka bolokoa nako e telele. Empa ka lebaka la theko ea eona e tlaase, bokhoni ba tsoelo-pele bo totobetse haholo.

2. Copolymer e kopantsoeng ke - si-c-bond e na le sebopeho se batlang se tsitsitse 'me se ka bolokoa ka lilemo tse fetang tse peli tlas'a maemo a koetsoeng. Leha ho le joalo, ka lebaka la tšebeliso ea platinum e theko e boima e le mohloli oa ts'ebetso ea tlhahiso, theko ea tlhahiso ea mofuta ona oa li-antifoamers e phahame, kahoo ha e e-s'o sebelisoe haholo.

V. Organic Silicon Antifoamer

…khaolong e latelang.