Kune marudzi akawanda eDefoamersuye dzinoshandiswa zvakanyanya. Maitiro e "foam kudzvinyirirwa" uye "kuputsika kwefuro" ye defoamer ndeye: kana defoamer yakawedzerwa kune iyo system, mamorekuru ayo anogoverwa zvisina tsarukano pamusoro pemvura, achidzivirira kuumbwa kweiyo elastic firimu, ndiko kuti, kugumisa chizvarwa chefuro. Kana iyo sisitimu ichiburitsa furo yakawanda, wedzera defoamer, mamorekuru ayo anobva angopararira pamusoro pefuro, anopararira nekukurumidza, oita mutete wakapetwa kaviri firimu layer, akawedzera kupararira, kupinda, uye kupinda muzvikamu, nokudaro achitsiva madziro akatetepa eiyo foam firimu rekutanga. Nekuda kwekudzikama kwayo kwepasi, inoyerera ichienda kumvura ine tension yakakwira inoburitsa furo, kuitira kuti mamorekuru e defoamer ane low surface tension arambe achipararira uye kupinda pakati pegasi-mvura yemvura interface, zvichiita kuti madziro emufirimu aite kutetepa nekukurumidza, uye furo rinokanganiswawo nenzvimbo yakatenderedza. Iyo firimu yefirimu ine tension yakakwirira inokwevera zvakasimba, kuitira kuti kushungurudzika kwakakomberedza furo kusingaenzaniswi, izvo zvinotungamirira ku "kuputsika kwefuro". Iyo defoamer molecules iyo isingagadziriswi muhurongwa ichapinda zvakare pamusoro peimwe firimu yefuro, uye zvichingodaro, iyo foam yese ichaparadzwa zvachose.
Nzira yekusarudza yakaruramaAntifoam
Kugadzirwa uye kuvakwa kwejasi kunoburitsa mabubbles kune akasiyana madhigirii. Chizvarwa chebhubhu chinotadzisa kufambira mberi kwakanaka kwekugadzira uye kuvaka, uye panguva imwechete kunounza kukanganisa kune yakapedzwa coating film. Sarudzo chaiyo yeakakodzera defoamer inogona kuve nechokwadi kufambira mberi kwakajairwa kwekugadzira uye kuvaka.
Basa re defoamer: paradza firimu remvura pamusoro pevhu, kudzivirira kuumbwa kwebubble uye kukurudzira kuparara kwebubble. Iyo defoamer inoshandiswa kune mabhuru mahombe, uye iyo microfoam inoda kushandiswa pamwe chete nekubvisa uye kubvisa furo.
Defoamer maficha: Iyo defoamer haina kunyungudika mukati, asi inogona kupinda nekupararira mukati meiyo microdroplets. Iyo yakanyanya kushanda dhayamita ye defoamer microdroplets yakaenzana nehupamhi hwemadziro efoam.
Defoamer kuumbwa:Defoamersnokuda kwemvura-based architectural coatings yakakamurwa kuva isiri-silicon uye silicon-ine marudzi. ConventionalDefoamersinoumbwa nezvikamu zvinotevera:
Active substance: Inoita senge inopwanya furo uye inobvisa furo ine kuderera kwepasi. Vamiriri vanosanganisira mafuta emhuka nemiriwo, hydrophobic silica, madoro akakwira, nezvimwe.
Diffusion agent: Wetting emulsifier kuti ive nechokwadi chekuti defoaming micro-droplets inopararira uye kubata bhaisikopo rebubble nekupararira. Kune asiri (octyl) phenol polyoxyethylene ether, sipo munyu uye zvichingodaro.
Mutakuri: Inobatsira chinhu chinoshanda kuti chisanganise nefoaming system, uye zviri nyore kupararira mufoaming system. Kubatanidza izvo zviviri, ine kuderera kwepasi tension, inobatsira kudzvanya furo, uye inogona kuderedza mitengo.
Mamiriro maviri anofanirwa kusangana pakusvibisa: kupinza chinhu: E=γ1+γ12-γ3 > 0, kuve nechokwadi chekuti defoamer inopinda mumadziro efuro; spreading factor S=γ1-v12-γ3 >0, kuona kuti defoamer droplets Diffusion inopararira mufoam media.
Kana iwe uchida kuziva zvakawanda nezveAntifoam, ndapota tauraYuncang: sales@yuncangchemical.com. leave your contact information
Nguva yekutumira: Jan-09-2023