A na-eji ihe mgbochi ụfụfụ iji belata nrụgide elu mmiri, ihe ngwọta na nkwụsịtụ, gbochie mmepụta ụfụfụ, ma ọ bụ belata ụfụfụ a na-emepụta n'oge mmepụta ụlọ ọrụ mmepụta ihe. Ihe mgbochi ụfụfụ a na-ahụkarị bụ ndị a:

I. Mmanụ eke (dịka mmanụ soybean, mmanụ ọka, wdg)

Uru: dị, dị ọnụ ala ma dịkwa mfe iji;

Ihe ọghọm: ọ dị mfe imebi ma mụbaa uru acid ma ọ bụrụ na echekwaghị ya nke ọma.

II.Mmanya Kabọn Dị Elu

Mmanya carbon dị elu bụ molekul linear nke nwere hydrophobicity siri ike na hydrophilicity adịghị ike, nke bụ antifoamer dị irè na sistemụ mmiri. Mmetụta antifoaming nke mmanya na-egbochi na-ejikọta ya na ịgbasa ya na mmiri ụfụfụ. Mmanya nke C7 ~ C9 bụ Antifoamers kachasị arụ ọrụ. A na-akwadebe nnukwu carbon alcohol nke C12 ~ C22 na emulsifiers kwesịrị ekwesị nke nha 4 ~ 9μm, yana 20 ~ 50% mmiri emulsion, ya bụ, defoamer na sistemụ mmiri. Ụfọdụ esters nwekwara mmetụta antifoaming na penicillin fermentation, dị ka phenylethanol oleate na lauryl phenylacetate.

nke atọ.Ihe mgbochi ụfụfụ Polyeter

1. Ọgwụ mgbochi ụfụfụ GP

Emere ya site na ịgbakwunye polymerization nke propylene oxide, ma ọ bụ ngwakọta nke ethylene oxide na propylene oxide, yana glycerol dị ka ihe na-amalite. O nwere obere hydrophilicity na obere mgbaze na ihe na-agbaze na mmiri na-agbaze, yabụ ọ dị mma iji ya na mmiri mmiri na-agbaze. Ebe ọ bụ na ikike mgbochi ụfụfụ ya karịrị nke defoaming, ọ dị mma itinye ya na ihe na-agbaze iji gbochie usoro ụfụfụ nke usoro ịgbaze ahụ dum.

2. Ihe mgbochi ụfụfụ GPE

A na-etinye Ethylene oxide na njedebe nke njikọ polypropylene glycol nke GP Antifoamers iji mepụta polyoxyethylene oxypropylene glycerol nwere njedebe hydrophilic. GPE Antifoamer nwere ezigbo hydrophilicity, ikike mgbochi ụfụfụ siri ike, mana ọ nwekwara nnukwu mgbaze nke na-akpata obere oge mmezi nke ọrụ mgbochi ụfụfụ. Ya mere, ọ na-enwe mmetụta dị mma na ofe gbara ọchịchịrị.

3. GPEs Antifoamers

A na-emepụta blọk copolymer nwere agbụ hydrophobic n'akụkụ abụọ na agbụ hydrophilic site na iji stearate hydrophobic mechie njedebe agbụ nke GPE Antifoamers. Mkpụrụ ndụ ndị nwere usoro a na-agbakọta na njikọ gas-liquid, yabụ ha nwere ike ịrụ ọrụ elu na arụmọrụ dị mma nke defoaming.

IV.Silicone Polyeter gbanwetụrụ

Polyether Modified Silicone Antifoamers bụ ụdị ọhụrụ nke ihe na-eme ka ụfụfụ dị elu rụọ ọrụ nke ọma. Ọ na-efu ego ma na-erite uru dị na mgbasa dị mma, ikike igbochi ụfụfụ siri ike, nkwụsi ike, anaghị egbu egbu ma na-emerụ ahụ, obere mgbanwe na ikike Antifoam siri ike. Dịka ụdị njikọ dị iche iche si dị, enwere ike kewaa ya n'ime ụdị abụọ ndị a:

1. Copolymer nwere -Si-OC- bond nke e ji acid mee dị ka ihe na-akpali akpali. Defoamer a dị mfe iwepụ mmiri ma ọ naghị akwụsi ike nke ọma. Ọ bụrụ na amine buffer dị, enwere ike idobe ya ruo ogologo oge. Mana n'ihi ọnụ ahịa ya dị ala, ikike mmepe ya doro anya nke ukwuu.

2. Copolymer nke – si-c-bond jikọtara nwere nhazi kwụsiri ike ma enwere ike ịchekwa ya ruo ihe karịrị afọ abụọ n'okpuru ọnọdụ mechiri emechi. Agbanyeghị, n'ihi ojiji platinum dị oke ọnụ dị ka ihe na-akpali akpali na usoro mmepụta, ọnụ ahịa mmepụta nke ụdị antifoamers a dị elu, yabụ ejibeghị ya nke ọma.

V. Ihe Mgbochi Silicon Organic

...isiakwụkwọ na-esote.