Codsiga Eter-ka Cellulose ee Rinjiga Saarka

rinji saar

Rinjiyeyaashu waa dareere ama dhejis kaas oo milmi kara ama barari kara filimka daahan, wuxuuna inta badan ka kooban yahay dareere leh awood milan oo xooggan, paraffin, cellulose, iwm.

Warshadaha dhisitaanka maraakiibta, hababka makaanikada sida majarafad-gacmeedka, qarxinta rasaasta, ciid-qarxinta, biyaha cadaadiska sare leh iyo dayuuradaha caarada ah ayaa inta badan loo adeegsadaa in meesha laga saaro dahaarkii hore. Si kastaba ha noqotee, aluminium aluminium, hababka farsamadu way fududahay in la xoqo aluminium, markaa ugu muhiimsan Isticmaal warqad ciid ah si aad u nadiifiso, rinjiga rinjiga, iwm si aad uga saarto filimkii hore ee rinjiga. Marka la barbardhigo cammuudda, isticmaalka rinjiga si loo saaro filimkii hore ee rinjiga ayaa leh faa'iidooyinka badbaadada, ilaalinta deegaanka iyo waxtarka sare.

Faa'iidooyinka isticmaalka rinjiyeynta rinjiga ayaa ah waxtar sare leh, isticmaalka heerkulka qolka, yaraynta birta, dhismaha fudud, looma baahna in la kordhiyo qalabka, iyo faa'iido darrada ayaa ah in qaar ka mid ah rinjiyeyaashu ay yihiin kuwo sun ah, dabacsan, gubanaya, oo qaali ah. Sannadihii ugu dambeeyay, noocyo kala duwan oo alaabooyin cusub oo rinji ka saaraya ayaa soo baxay, sidoo kale waxaa la soo saaray rinji-saar biyo ku salaysan. Waxtarka ka saarista rinjiga ayaa si joogto ah loo xoojiyay, iyo waxqabadka ilaalinta deegaanka ayaa si joogto ah loo hagaajiyay. Alaabooyinka aan sunta ahayn, sun yar, iyo kuwa aan guban ayaa si tartiib tartiib ah u qabsaday suuqa caadiga ah ee rinji-saarayaasha.

Mabda'a ka saarista rinjiga iyo kala soocida rinjiga

1. Mabda'a rinjiyeynta

Rinjiyeyaashu waxay inta badan ku tiirsan yihiin dareeraha dabiiciga ah ee rinjiga ka saara si ay u milaan oo u bararaan inta badan filimada daahan, si loo gaaro ujeedada ka saarida filimkii hore ee daahan ee dusha sare ee substrate-ka. Marka rinjiga rinjigu uu galo farqiga silsiladda polymer ee polymer-ka daboolka ah, waxay keeni doontaa in polymer-ku bararsado, si mugga filimka dahaarka uu sii wadi doono inuu kordho, iyo cadaadiska gudaha ee ka dhasha kororka mugga daboolka. polymer ayaa daciifin doona oo Ugu dambeyntii, adhesion ee filimka daahan ee substrate waa la burburiyaa, iyo filimka daahan ayaa ka soo baxa barar u eg bararka xaashida, taasoo keenaysa filimka daahan inuu laalaabto, oo gebi ahaanba burburiyo adhesion filimka daahan ee substrate-ka. , iyo ugu dambeyntii filimka dahaadhka ah waa la qaniinay. cad.

2. Kala-saarista rinjiga

Rinjiyeyaashu waxay u qaybsan yihiin laba qaybood iyadoo loo eegayo walxaha samaynta filimaanta ee kala duwan ee laga saaray: mid waxaa lagu sameeyay dareerayaasha organic sida ketones, benzene, ketones, iyo paraffin dib-u-dejin, oo loo yaqaan kareem cad, waxaana inta badan loo isticmaalaa ka saar filimadii hore ee rinji sida saliida ku salaysan, alkyd iyo nitro-based. Rinjiga noocaan ah wuxuu inta badan ka kooban yahay qaar ka mid ah dareerayaasha dabiiciga ah ee kacsan, kuwaas oo leh dhibaatooyin ay ka mid yihiin ololka iyo sunta, waana raqiis.

Midda kale waa rinjiga koloriin leh ee hydrocarbon ka saarista oo lagu sameeyay dichloromethane, paraffin iyo cellulose ether oo ah qaybaha ugu muhiimsan, oo badanaa loo yaqaan ka saaraha rinjiga biyaha, inta badan loo isticmaalo in lagu saaro epoxy asphalt, polyurethane, epoxy poly Cured filimadii hore ee daahan sida phthalamide ama amino alkyd. xabagta Waxay leedahay waxtarka saarista rinjiga sare, sunta hoose iyo codsi ballaaran. Rinjiga ka saara dichloromethane sida dareeraha ugu muhiimsan ayaa sidoo kale loo qaybiyaa rinjiga saarista dhexdhexaad ah (pH = 7 ± 1), saarayaha rinjiga alkaline (pH> 7) iyo rinjiga aashitada iyadoo loo eegayo farqiga qiimaha pH.