Alaabooyinkayaga ugu muhiimsan: Amino silicone, silicone block, silicone hydrophilic, dhamaan emulsion silikoon, hagaajinta xajinta qoynta, ka hortagga biyaha (Fluorine free, Carbon 6, Carbon 8), kiimikooyinka lagu dhaqo demin (ABS, Enzyme, Spandex ilaaliyaha, Manganese saarista) ， Faahfaahin dheeraad ah fadlan la xiriir: Mandy +856
Hordhaca Surfactants
Surfactants waxay leeyihiin qaab-dhismeedka molecular amphiphilic: hal dhamaadka waxaa ku jira koox hydrophilic, oo loo yaqaan madaxa hydrophilic, halka dhamaadka kale uu ka kooban yahay koox hydrophobic, oo loo yaqaan dabada hydrophobic. Madaxa hydrophilic wuxuu u ogolaanayaa surfactants inay ku milmaan biyaha qaabkooda monomer.
Kooxda hydrophilic inta badan waa koox polar ah, kuwaas oo noqon kara koox carboxyl ah (-COOH), koox sulfonic acid (-SO3H), koox amino ah (-NH2), amines iyo cusbada ay, kooxaha hydroxyl (-OH), kooxaha amide, ama ether linkages (-O-) sida tusaalooyin kale ee kooxaha hydrophilic polar.
Kooxda hydrophobic sida caadiga ah waa silsilad hydrocarbon ah oo aan polar ahayn, sida silsiladaha alkyl hydrophobic (R- for alkyl) ama kooxaha udgoonka (Ar- for aryl).
Surfactants waxaa loo kala saari karaa surfactants ionic (ay ku jiraan cationic iyo anionic surfactants), surfactants non-ionic, surfactants amphoteric, surfactants isku dhafan, iyo kuwa kale. Xalalka surfactant, marka xoogga saarista dusha sare ay gaarto qiimo gaar ah, molecules surfactant ayaa sameyn doona isku darka la amray ee kala duwan ee loo yaqaanno micelles. Habka micellization, ama samaynta micell, waa hantida aasaasiga ah ee muhiimka ah ee xalalka surfactant, maadaama ifafaale badan oo muhiim ah oo ka dhexeeya wajiyada dhexdooda ay la xiriiraan samaynta micelle.
U fiirsashada ay surfactants ka sameeyaan miceles ee xalka waxaa loo tixraacaa sida xoogga Micelle ee Ba'an (CMC). Micelles ma aha kuwo go'an, qaabab wareegsan; balse, waxay muujinayaan habacsanaan xad dhaaf ah iyo isbedel qaabaysan. Xaalado gaar ah, surfactants ayaa sidoo kale laga yaabaa inay soo bandhigaan dawlad-goboleedka micelle.
Arrimaha Saamayn ku leh CMC:
- Qaab dhismeedka surfactant
- Nooca iyo joogitaanka waxyaabaha lagu daro
- Heerkulka
Isdhexgalka u dhexeeya Surfactants iyo Borotiinnada
Borotiinadu waxa ay ka kooban yihiin kooxo aan polar-ka ahayn, polar-ka, iyo kooxo la dallacay, iyo molecules badan oo amphiphilic ah ayaa siyaabo kala duwan ula falgala borotiinada. Iyada oo ku xidhan xaaladaha, surfactants waxay samayn karaan isku-darka isku-darka molecular habaysan oo leh qaabab kala duwan, sida jeexjeexyada ama jeexjeexyada gadaale, kuwaas oo si kala duwan ula falgala borotiinada.
Isdhexgalka ka dhexeeya borotiinnada iyo surfactants (Protein-Surfactant, PS) ayaa ugu horreyn ku lug leh isdhexgalka elektrostatic iyo isdhexgalka hydrophobic. Surfactants Ionic waxay la falgalaan borotiinnada inta badan iyada oo loo marayo xoogagga elektrostatic ee kooxda dabaysha iyo isdhexgalka hydrophobic ee silsiladda kaarboonka alifbeetada, oo ku xidhan gobollada polar iyo hydrophobic ee borotiinka, sidaas darteed samaynta dhismooyinka PS.
Surfactants non-ionic ugu horrayn waxay la falgalaan borotiinada iyada oo loo marayo xoogagga hydrophobic, halkaas oo silsiladaha hydrophobic ay la falgalaan gobollada hydrophobic ee borotiinnada. Is dhexgalka ayaa saameyn ku yeelan kara labadaba qaab dhismeedka iyo shaqada surfactant iyo borotiinka. Sidaa darteed, nooca iyo xoogga saarista surfactants, oo ay weheliso jawiga deegaanka, ayaa go'aaminaya in surfactants ay dejiyaan ama ay dejiyaan borotiinka, iyo sidoo kale haddii ay kor u qaadaan isku-darka ama kala firdhinta.
Qiimaha HLB ee Surfactants
Si uu u soo bandhigo dhaqdhaqaaqiisa gaarka ah ee wejiga, waa in uu dheellitiraa qaybaha hydrophobic iyo hydrophilic. HLB (Hydrophile-Lipophile Balance) waa cabirka dheellitirka hydrophilic-lipophilic of surfactants wuxuuna u adeegaa sida tilmaame sifooyinkii 'hydrophilic and hydrophobic surfactants'.
Qiimaha HLB waa qiime qaraabo ah (laga bilaabo 0 ilaa 40). Tusaale ahaan, paraffin waxa uu leeyahay qiimaha HLB ee 0 (ma jiro qayb ka mid ah hydrophilic), polyetylen glycol waxa uu leeyahay HLB qiimaha 20, iyo aadka hydrophilic SDS (sodium dodecyl sulfate) ayaa leh qiimaha HLB 40. Qiimaha HLB wuxuu u adeegi karaa tixraac hagid marka la dooranayo surfactants. Qiimaha sare ee HLB wuxuu muujinayaa biyo-bax wanaagsan, halka qiimaha HLB hoose uu muujinayo biyo-bax liidata.
Waqtiga boostada: Sebtembar-10-2024