Babban samfuranmu: Amino silicone, silicone, silicone silicone, silicone silicone, duk emulsion silicone, mai haɓaka saurin gogewa, mai hana ruwa (Fluorine kyauta, Carbon 6, Carbon 8), sinadarai wankin demin (ABS, Enzyme, Spandex, mai cire Manganese. ), Main fitarwa kasashen: India, Pakistan, Bangladesh, Turkiye, Indonesia, Uzbekistan, da dai sauransu : Mandy +86 19856618619 (Whatsapp)

 

Matsalar kumfa a maganin ruwa ta dagula mutane da yawa. A matakin farko na ƙaddamarwa, kumfa, kumfa mai surfactant, kumfa mai tasiri, kumfa peroxide, kumfa da aka samar ta hanyar ƙara ƙwayoyin cuta marasa oxidizing a cikin maganin ruwa, da dai sauransu, don haka amfani da defoamer a cikin maganin ruwa yana da mahimmanci. Wannan labarin gabaɗaya yana gabatar da ƙa'ida, rarrabuwa, zaɓi da sashi na defoamer!

★ Kawar da kumfa

1. Hanyoyin jiki

Daga ra'ayi na zahiri, hanyoyin da za a kawar da kumfa galibi sun haɗa da sanya baffle ko allon tacewa, tashin hankali na injiniya, wutar lantarki a tsaye, daskarewa, dumama, tururi, iska mai haske, saurin saurin sauri, raguwar matsa lamba, girgiza mai ƙarfi, firgita kai tsaye. da ultrasonic (coustic ruwa iko). Waɗannan hanyoyin duk suna haɓaka ƙimar watsa iskar gas a ƙarshen ƙarshen fim ɗin ruwa da fitar da ruwa na fim ɗin kumfa zuwa nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan abubuwan da ke haifar da fitar da ruwa daga fim ɗin kumfa, wanda hakan yana sanya yanayin kwanciyar hankali na kumfa ya zama ƙasa da ma'aunin attenuation, ta yadda adadin kumfa a hankali ya ragu. Duk da haka, rashin amfani na yau da kullum na waɗannan hanyoyin shine cewa suna da matukar damuwa da abubuwan muhalli kuma suna da ƙananan raguwa. Amfanin shine kariyar muhalli da yawan sake amfani da su.

2. Hanyoyin sinadarai

Hanyoyin sinadarai don kawar da kumfa sun haɗa da hanyar amsa sinadarai da ƙara defoamer.

Hanyar amsawar sinadarai tana nufin halayen sinadarai tsakanin mai yin kumfa da mai yin kumfa ta hanyar ƙara wasu reagents don samar da abubuwan da ba za su iya narkewa da ruwa ba, don haka rage ƙwayar surfactant a cikin fim ɗin ruwa da haɓaka fashewar kumfa. Duk da haka, wannan hanya yana da wasu gazawa, irin su rashin tabbas na abubuwan da ke tattare da kumfa da kuma cutar da abubuwa marasa narkewa ga kayan aiki na tsarin. Hanyar lalata kumfa da aka fi amfani da ita a masana'antu daban-daban a zamanin yau ita ce hanyar da za a ƙara masu lalata. Babban fa'idar wannan hanyar ita ce haɓakar haɓakar kumfa da sauƙin amfani. Duk da haka, gano mai dacewa da ingantaccen defoamer shine mabuɗin.

★Ka'idar defoamer

Defoamers, kuma aka sani da defoamers, suna da ka'idoji masu zuwa:

1. Tsarin kumfa na raguwar tashin hankali na gida wanda ke haifar da fashewar kumfa shine cewa an yayyafa shi mafi girma alcohols ko kayan lambu mai a kan kumfa, kuma lokacin da aka narkar da shi cikin ruwa mai kumfa, za a rage tashin hankali sosai. Saboda waɗannan abubuwa gabaɗaya suna da ƙarancin solubility a cikin ruwa, raguwar tashin hankali yana iyakance ga ɓangaren gida na kumfa, yayin da tashin hankali a kusa da kumfa ba shi da wani canji. Bangaren da ke da raguwar tashin hankali yana ja da ƙarfi kuma yana faɗaɗa shi a duk kwatance, kuma a ƙarshe ya karye.

2. Halakar da elasticity membrane take kaiwa zuwa kumfa karya defoamer kara da kumfa tsarin, wanda zai yada zuwa ga gas-ruwa dubawa, yin shi da wuya ga surfactant da kumfa stabilizing sakamako mai da da membrane elasticity.

3. Defoamers cewa inganta ruwa fim magudanun ruwa iya inganta ruwa fim magudanun ruwa, don haka haifar da kumfa to fashe. Matsakaicin magudanar kumfa zai iya nuna kwanciyar hankali na kumfa. Ƙara wani abu da ke hanzarta zubar da kumfa yana iya taka rawa wajen zubar da kumfa.

4. Ƙara hydrophobic m barbashi iya sa kumfa to fashe a saman kumfa. Hydrophobic m barbashi jawo hydrophobic karshen surfactant, yin hydrophobic barbashi hydrophilic da kuma shiga cikin ruwa lokaci, game da shi taka rawa a defoaming.

5. Solubilizing da kumfa surfactants na iya haifar da kumfa don fashe. Wasu ƙananan nauyin kwayoyin halitta waɗanda za a iya haɗa su tare da maganin zai iya narkewa da surfactant kuma ya rage tasiri mai tasiri. Low kwayoyin abubuwa tare da wannan sakamako, kamar octanol, ethanol, propanol da sauran alcohols, ba zai iya kawai rage surfactant maida hankali a cikin surface Layer, amma kuma narke a cikin surfactant adsorption Layer, rage compactness na surfactant kwayoyin, don haka raunana da kwanciyar hankali. na kumfa.

6.Electrolyte rushewar surfactant biyu lantarki Layer taka a defoaming rawa a cikin hulda da surfactant biyu lantarki Layer da kumfa don samar da barga kumfa ruwa. Ƙara talakawa electrolyte zai iya ruguje rufin lantarki biyu na surfactant.

★ Rarraba masu fasa bututu

Za a iya raba masu lalata da aka saba amfani da su zuwa silicone (gudu), surfactant, alkane, da man ma'adinai bisa ga abun da ke ciki.

1. Silicone (gudu) defoamers, kuma aka sani da emulsion defoamers, ana amfani da su ta hanyar emulsifying da tarwatsa silicone guduro tare da emulsifiers (surfactants) a cikin ruwa kafin ƙara da shi a cikin ruwa. Silicon dioxide lafiya foda wani nau'i ne na defoamer na tushen silicon tare da sakamako mafi kyau na lalata.

2. Surfactants irin wannan defoamers ne ainihin emulsifiers, wato, suna amfani da watsawa na surfactants don kiyaye kumfa kafa abubuwa a cikin barga emulsified jihar a cikin ruwa, don kauce wa samuwar kumfa.

3. Nazarce-nazarcen Alkane sune abubuwan da ake yin su ta hanyar yin emulsifier da tarwatsa farfesa ko abubuwan da suka samo asali ta hanyar amfani da emulsifiers. Amfani da su yayi kama da na surfactant tushen emulsifying defoamers.

4.Ma'adinan mai shine babban bangaren lalata kumfa. Don inganta tasirin, wani lokaci ana haɗa sabulun ƙarfe, man silicone, silica da sauran abubuwa tare don amfani. Bugu da ƙari, ana iya ƙara wasu nau'ikan surfactants daban-daban a wasu lokuta don sauƙaƙe yaduwar man ma'adinai a saman saman maganin kumfa ko kuma a watsar da sabulun ƙarfe da sauran abubuwa a cikin mai.
★ Fa'idodi da rashin amfani na nau'ikan masu lalata kumfa

Bincike da aikace-aikacen masu lalata kwayoyin halitta irin su mai mai ma'adinai, amides, ƙananan alcohols, fatty acids da fatty acid esters, phosphate esters, da dai sauransu sun kasance da wuri kuma suna cikin ƙarni na farko na defoamers. Suna da abũbuwan amfãni na sauƙin samuwa na albarkatun kasa, babban aikin muhalli, da ƙananan farashin samarwa; Lalacewar su ne ƙarancin lalata kumfa, ƙayyadaddun ƙaƙƙarfan ƙayyadaddun ƙaƙƙarfan yanayin amfani.

Polyether defoamers ne na ƙarni na biyu defoamers, yafi ciki har da madaidaiciyar sarkar polyethers, polyethers fara daga alcohols ko ammonia, da kuma polyether da aka samu tare da karshen rukuni esterification. Babban fa'idar polyether defoamers shine ƙarfin ƙarfin kumfa mai ƙarfi. Bugu da ƙari, wasu masu lalata polyether kuma suna da kyawawan kaddarorin irin su ƙarfin zafin jiki, ƙarfin acid da juriya na alkali; Rashin lahani yana iyakance ta yanayin zafin jiki, kunkuntar wuraren aikace-aikacen, rashin iya lalata kumfa, da ƙarancin karya kumfa.

Silicone defoamers (defoamers na ƙarni na uku) suna da ƙarfin ɓarnawa mai ƙarfi, saurin lalata kumfa, ƙarancin rashin ƙarfi, babu mai guba ga yanayin, babu rashin kuzarin physiological, da aikace-aikacen da yawa. Sabili da haka, suna da fa'idodin aikace-aikacen aikace-aikacen da babbar damar kasuwa, amma aikin lalata su ba shi da kyau.

Polyether modified polysiloxane defoamer ya haɗu da fa'idodin duka polyether defoamers da organosilicon defoamers, kuma shine jagorar ci gaban defoamers. Wani lokaci ana iya sake yin amfani da shi bisa la'akari da jujjuyawarta, amma a halin yanzu akwai 'yan nau'in irin waɗannan masu lalata kuma har yanzu suna cikin bincike da ci gaba, yana haifar da farashin samar da kayayyaki.

★ Zabin masu fasa foam

Zaɓin na defoamers yakamata ya cika ka'idodi masu zuwa:

1. Idan ba a iya narkewa ko ba a narkewa a cikin maganin kumfa, zai karya kumfa. Ya kamata a mai da hankali kan defoamer a kan fim ɗin kumfa. Ga masu cire kumfa, yakamata a tattara su cikin hanzari, yayin da masu hana kumfa, yakamata a kiyaye su a cikin wannan yanayin akai-akai. Don haka masu cire foamers suna cikin yanayin da ba su da kyau a cikin ruwa mai kumfa, kuma waɗanda ba za su iya narkewa ko rashin narkewa ba ne kawai suke da saurin kaiwa ga cikawa. Rashin narkewa ko da wuya a narke, yana da sauƙi don tarawa a wurin haɗin gas-ruwa, mai sauƙi don mayar da hankali kan ƙwayar kumfa, kuma yana iya aiki a ƙananan ƙididdiga. Defoamer da aka yi amfani da shi a cikin tsarin ruwa, kwayoyin halitta masu aiki, dole ne su kasance mai karfi hydrophobic da raunin hydrophilic, tare da darajar HLB a cikin kewayon 1.5-3 don sakamako mafi kyau.

2. Tashin hankali ya kasance ƙasa da na ruwa mai kumfa, kuma kawai lokacin da ƙarfin intermolecular na defoamer ya kasance ƙananan kuma yanayin zafi ya kasance ƙasa da na ruwa mai kumfa, ƙwayoyin defoamer zasu iya shiga kuma su fadada a kan fim din kumfa. Ya kamata a lura da cewa yanayin da ake ciki na maganin kumfa ba shine yanayin da ake ciki ba, amma yanayin zafi na maganin kumfa.

3. Akwai ƙayyadaddun dangantaka da ruwan kumfa. Kamar yadda tsarin lalata kumfa shine ainihin gasa tsakanin saurin rushewar kumfa da saurin samar da kumfa, dole ne mai cire foam ɗin ya sami damar watsewa cikin sauri a cikin ruwan kumfa ta yadda zai yi sauri ya taka rawa a cikin kewayon ruwan kumfa. Don yin defoamer ya bazu cikin sauri, kayan aiki mai aiki na defoamer dole ne ya sami ƙayyadaddun alaƙa da maganin kumfa. Abubuwan da ke aiki na defoamers suna kusa da ruwa mai kumfa kuma za su narke; Yayi yawa kuma yana da wahalar tarwatsewa. Sai kawai lokacin da kusanci ya dace zai iya yin tasiri mai kyau.

4. Defoamers ba sa shan sinadarai tare da ruwa mai kumfa. Lokacin da masu cire foamers suka amsa da ruwa mai kumfa, sun rasa tasirin su kuma suna iya haifar da abubuwa masu cutarwa waɗanda ke shafar haɓakar ƙwayoyin cuta.

5.Low volatility da kuma tsawon lokacin aiki. Da farko, ya zama dole don sanin ko tsarin da ke buƙatar yin amfani da na'urar bushewa ya kasance tushen ruwa ko mai. A cikin masana'antar fermentation, ya kamata a yi amfani da defoamers na tushen mai irin su silicone da aka gyara ko polyether. Masana'antar suturar ruwa tana buƙatar masu lalata tushen ruwa da masu lalata siliki na halitta. Zaɓi mai cire foamer, kwatanta adadin da aka ƙara, kuma dangane da farashin tunani, ƙayyade mafi dacewa da samfurin defoamer na tattalin arziki.

★Abubuwan da ke shafar tasirin amfani da na'urar bushewa

1. A dispersibility da surface Properties na defoamers a cikin bayani muhimmanci shafi sauran defoaming Properties. Defoamers yakamata su kasance da matakin da ya dace na tarwatsewa, kuma ɓangarorin da suka yi girma ko ƙanana a girman na iya shafar aikin lalata su.

2. Daidaituwar defoamer a cikin tsarin kumfa Lokacin da surfactant ya narkar da shi gaba ɗaya a cikin bayani mai ruwa, yawanci ana shirya shi a kan ma'aunin ruwan gas na kumfa don daidaita kumfa. Lokacin da surfactant ne a cikin insoluble ko supersaturated jihar, da barbashi tarwatsa a cikin bayani da kuma tara a kan kumfa, da kuma kumfa abubuwa a matsayin defoamer.

3. Yanayin zafin jiki na tsarin kumfa da zafin jiki na ruwa mai kumfa kuma zai iya rinjayar aikin defoamer. Lokacin da yawan zafin jiki na ruwa mai kumfa da kansa ya yi girma, ana ba da shawarar yin amfani da na'urar da ke jure yanayin zafi na musamman, domin idan aka yi amfani da na'urar na'urar ta yau da kullun, za a rage tasirin zubar da foam ɗin sosai, kuma na'urar za ta lalata ruwan shafa kai tsaye.

4. A marufi, ajiya, da kuma sufuri na defoamers sun dace da ajiya a 5-35 ℃, da shiryayye rai ne kullum 6 watanni. Kada a sanya shi kusa da tushen zafi ko fallasa shi ga hasken rana. Dangane da hanyoyin ajiyar sinadarai da aka saba amfani da su, tabbatar da rufewa bayan amfani don guje wa lalacewa.

6.The Bugu da kari rabo na defoamers zuwa asali bayani da diluted bayani yana da wasu sabawa zuwa wani iyaka, da kuma rabo ba daidai ba. Saboda ƙarancin maida hankali na surfactant, ruwan shafan defoamer da aka diluted ba shi da kwanciyar hankali sosai kuma ba zai ƙare ba nan da nan. Ayyukan defoaming yana da ƙarancin talauci, wanda bai dace da ajiya na dogon lokaci ba. Ana bada shawarar yin amfani da shi nan da nan bayan dilution. Ya kamata a tabbatar da rabon defoamer da aka ƙara ta hanyar gwaji a wurin don kimanta tasirin sa, kuma bai kamata a ƙara shi da yawa ba.

★Abin da ake amfani da shi wajen cire foamer

Akwai nau'ikan defoamers da yawa, kuma adadin da ake buƙata don nau'ikan defoamers daban-daban ya bambanta. A ƙasa, za mu gabatar da sashi na nau'ikan defoamers guda shida:

1. Barasa defoamer: Lokacin amfani da barasa defoamers, da sashi ne kullum tsakanin 0.01-0.10%.

2. Masu lalata foamers na mai: Adadin masu lalata mai da aka saka yana tsakanin 0.05-2%, kuma adadin fatty acid ester defoamers da aka saka yana tsakanin 0.002-0.2%.

3. Amide defoamers: Amide defoamers suna da sakamako mafi kyau, kuma adadin ƙari gabaɗaya yana cikin 0.002-0.005%.

4. Phosphoric acid defoamer: Phosphoric acid an fi amfani dashi a cikin fibers da mai mai mai, tare da ƙarin adadin tsakanin 0.025-0.25%.

5. Amine defoamer: Amine defoamers ana amfani da su a cikin sarrafa fiber, tare da ƙarin adadin 0.02-2%.

7.Ether tushen defoamers: Ether tushen defoamers ana amfani da su a takarda bugu, rini, da kuma tsaftacewa, tare da na hali sashi na 0.025-0.25%.