Alaabadayada ugu weyn: aminolicone, oo ah silicone, hydophophilic silicone, oo dhan oo qoysas ah, kareemka 'Chineninne', Minenese Retover), waddamada 'Mingastan', Hindiya, Pakistan, Pakistan, Bangladesh, Türkiye, Türkiye, Indonesia, Uzbekistan, iwm. Fadlan faahfaahin dheeraad ah kala xiriir: Mandy +86 19856618619 (WhatsApp)

Iyada oo la wanaajinayo heerarka nolosha dadka, shuruudaha macaamiisha ee cuntada aan ku koobneyn oo keliya qiimaha nafaqada oo macquul ah, laakiin sidoo kale waxay u baahan yihiin cunno si ay ugu qancaan tayo lagu qanco oo ku saabsan astaamaha, midabka, dhadhanka, dareenka, visces, iwm.

Emofifiers, sida cuntada lagu daro ee xayeysiinta ah, ka ciyaar door muhiim ah warshadaha cuntada. Aynu eegno farsamada ficil ee emulsifiers!

Dhismo ku eg

Emulsion-ka caanka ah ee cuntada wuxuu ka kooban yahay biyo ama xalka aqueous, oo si wada jir ah loogu tilmaamo marxaladda biyaha ku jira; Wejiga kale waa waji dabiici ah oo aan lagu eegi karin biyaha, oo sidoo kale loo yaqaan wejiga lipophophic. Laba cabitaan oo aan la qasi karin, sida biyaha iyo saliida, waxay sameyn karaan laba nooc oo emulsions ah markii ay isku qasan yihiin, oo ah biyo saliid (O / W) iyo biyo saliid (W / o) emulsions.

Biyo ku dhex jira emulsion saliida, saliida waxaa loo kala firdhiyaa sida dhibco yar yar oo biyo ah, oo leh dhibco dhibco saliid ah sida wajiga kala firidhsan marxaladda iyo biyaha sida kala firidhsan. Tusaale ahaan, caanaha lo'da waa o / w emulsion; Biyo ku dhex jira emulsions saliida, ka soo horjeedda waa run. Biyaha ayaa loo kala firdhiyaa sida dhibco yaryar oo saliida ah, oo biyo ah sida wajiga kala firidhsan marxaladda iyo saliida sida kala firidhsan ee kala firidhsan. Tusaale ahaan, subagga macmalka ah waa nooc ka mid ah w / o emulsion.

Farsamaynta ficil ee emulsifiers

Cunnooyinka cuntada, oo sidoo kale loo yaqaan surfilarts, waa walxaha u beddelaya cabitaanno ah wejiyada kala-sooca ee isku-dhafka ah (emulsions). Markii lagu daro cuntada, waxay si weyn hoos ugu dhigi karaan xiisadda is dhexgalka ee udhaxeysa saliida iyo biyaha, oo u oggolaanaya saliidaha saliidaha (walxaha saliida leh) iyo maaddooyinka biyaha (walxaha biyo-mareenka) si loo sameeyo emulsions deggan sida cuntada lagu daro.

Dhinac, emulsifiers waxay sameeyaan lakab molikal khafiif ah dusha sare ee wejiyada ugu nugul, yareynta tamarta dusha sare ee nidaamka oo dhan iyo sameynta is-dhexgal cusub. Molecules Molecules-ka ayaa leh kooxo firfircoon oo firfircoon iyo aqoon-darri ku ah dusha sare ee wejiyada kor u galka ah ee saliida saliida iyo biyaha, oo dhisi kara xiisadda dhuuban ee khafiifka ah iyo yareynta xiisadda is-dhexgalka labada weji. Taasi waa, olophilic qayb ka mid ah molecule saliida iyo emulsifierku wuxuu ku yaal hal dhinac, iyo qaybta biyaha ku jirta ee molecule-ka biyaha iyo emulsifierku waa dhinaca kale. Is-dhexgalkan u dhexeeya labada ayaa sababa isbedel ku saabsan xiisadda isbadalka;

Dhanka kale, adoo sameysmaya lakabka adsoription-ka ee difaaca dusha sare ee dhibicda, waxay ku dhajisaa dhibcaha iyada oo xasilloonida xoogga leh. Dhacdooyinka badan ayaa lagu daray, oo hoos udhaca xiisadda is-dhexgalka ah. Tani waxay u oggolaaneysaa walxo aan la dumin karin si ay u noqdaan isku dhafan, sameynta nidaam is-kala firdhiyey oo beddelaya gobolka jir ahaaneed ee asalka u ah, taas oo ay ku wanaajinayso qaabdhismeedka gudaha ee cuntada iyo kor u qaadida tayadeeda.
Hydrophilic iyo ilophilic isugeynta isugeynta

Guud ahaan, emifiers leh noocyo hawo adag oo saliid ah / emulsions biyo ah, halka emifiers leh oo leh hawo-hawo adag oo biyo ah / emulsions saliid ah. Si loo muujiyo isku-dheelitirka biyaha iyo libta-lipophilic ee emulssifiers, qiimaha hlb (repophilic reipophophic isku dheelitirka libta ee libta) ayaa badanaa loo isticmaalaa in lagu matalo biyo-galinta emulscadaha emulsifics. Waxaa jira habab xisaabaad oo kala duwan oo loogu talagalay qiimaha hlb,

Qaaciddada farqi: hlb = biyo-biyoodka kooxda hydrophilic - hydrophobisnimada kooxda lipophilic

Qaaciddada Qiimeynta: HLB = biyo-biyoodka kooxda biyaha ku-dhajinta / hydrophobisnimada kooxda olophilic Group

Qiimaha HLB ee emulsifier kasta waxaa lagu go'aamin karaa hababka tijaabada. In emulsifiers oo leh 100% lipophophicicity, hlb ay tahay 0 (oo ay matalaan parafsin '(oo ay ku shaqeeyaan parafpicicicicity 100% ah, oo loo qaybiyay potassium-ka), oo loo kala qaybiyey 20 qaybood oo isla'eg si loo muujiyo awoodda biyo-darrada iyo olophicicicity-ka. Qiimaha weyn ee HLB, ayaa ka xoog badan biyo-baxa, iyo qiimaha yar ee hlb, kuwa xoogaysata olophicicity.

Inta ugu badan ee emulsifiers-ka la cuni karo waa kuwa aan ionnic surfacas-ka oo leh qiimayaasha hlb oo u dhexeeya 0 illaa 20. Qiimaha HLB ee kala duwan iyo astaamaha la xiriira ee miiska non-isic emulsifiers-ka aan la soo koobi karin ayaa lagu muujiyey miiska; Qiimaha HLB ee Surfackits Ionc waa 0-40. Sidaa darteed, emulsifiers qiimayaasha hlb <10 badanaa waa lipophophic, halka emifiers leh qiimayaasha hlb ≥ 10 ay leeyihiin astaamo biyo-baxa.

Wicinifers isku dhafan, qiimahooda HLB waxay leeyihiin guryo wax lagu daro. Sidaa darteed, markii laba ama in ka badan oo emulsifiers isku dhafan yihiin oo la isticmaalo, qiimaha hlb ee emulsifififier isku dhafan ayaa lagu xisaabin karaa iyadoo lagu saleynayo jajabka ballaaran ee emulsifier kasta:

HLBA, B = HLBA ·% + hlbb · B%

Qaaciddada,

HLBA, B waa qiimaha hlb ee emulsifier a, b isku qasan;

HLBA iyo HLBB waa qiyamka hlb ee emofifiers a iyo b, siday u kala horreeyaan;

A% iyo B% ayaa ah waxa ku jira boqolkiiba ee A iyo B ee Emulsifier isku dhafan, siday u kala horreeyaan (qaaciddadaan (qaaciddadani waxay khusaysaa oo keliya).
Qaababka diyaarinta iyo sababaha saameynta ee emulsifiers

Waxaa jira afar habab oo loogu diyaariyo emulsifiers, oo ah hab qalalan oo qallalan, hab qoyan, qaab guluushu, wajiga biyaha-isku-darka, iyo habka farsamada.

Habka gel ee qallalan, oo ku lug leh ku darista biyaha wejiga saliida ee ay ku jiraan emulsifiers. Inta lagu gudajiro diyaarinta, budada caagga ah (emulsifier) ​​ayaa marka hore lagu qaso si siman, oo ah xaddi biyo ah ayaa lagu daraa, dhulkana lagu dhejiyaa dambas, ka dibna lagu qasi jiray biyo ilaa xaddiga buuxa.

Habka qoyan ee qoyan, kaas oo ku lug leh ku darista saliida wejiga biyaha ee ay ka kooban yihiin emulsifiers. Inta lagu gudajiro diyaarinta, jel (emulsifier) ​​ayaa markii ugu horreysay ku milmay biyaha si loo sameeyo slinurry sida wejiga biyaha. Kadib, wajiga saliida waxaa lagu dari doonaa wejiga biyaha ee marxaladaha, dhulka galay dambas, iyo biyaha waxaa lagu daraa cadadka buuxa.

Isku qas wejiyada saliidda iyo biyaha oo ku dar emulsifier, isku darida qaddarka saliidda iyo biyaha qaarkood. Ku shiidi xanjo carabi ah hoobiye, ka dibna si dhakhso ah ugu kari isku-darka saliida saliida dambas daloolka, oo ku milmada biyo.

Diyaarinta emulsifiers badanaa waxay ku lug leedahay emulsing laba cabitaanno ah, iyo tayada emulsion waxay saameyn weyn ku leedahay tayada emulsion.

Sababaha saameeya emulsication badanaa waxaa ka mid ah xiisadda is-dhexgalka, viscosity, heerkulka, waqtiga emulsification, iyo xaddiga emulsifier la isticmaalay. Emulsifiers oo si weyn u yareyn kara xiisadda is-dhexgalka guud ahaan waa la xushay; Heerkulka ugu habboon ee ku habboon ee emulsifiers waa qiyaastii 70 ℃. Haddii dadka aan ifinic-ka aan ionnic loo isticmaalaa sida emesifiers, heerkulka emulsion waa inuusan ka badneyn heerkulka ugu sarreeya; Inbadan oo emulsifiers badan ayaa la istcimaalaa, sida ugu badan ee xasilloonida loo sameeyay.

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