Cilmiga Chether Chether waa xarun polymer oo leh qaab dhismeedka ether ah oo laga sameeyay cellulose. Giraan kasta gullosyl glucosulose macromolecucucucucucucucucucucucucucucucucucucucucule, hyroxyl kooxda 'hyroxyl sedex' oo ah kaarboon-hayaha, iyo hydrogen-ka labaad ee ku yaal hydrocarky-ka ayaa lagu beddelay koox hydrocarbon-ka si ay u abuuraan waxyaabaha unugyada ether.
Codsiga unugyada cellulose ether
1. Dhisidda Qalabka Cilmiga Qofka Chel
Chether Chether waxaa loo yaqaan "Monosodium Monosodium Glutamate". Thanks to dhumucdeeda sare, haynta biyaha, si weyn ayaa loo isticmaalaa in lagu hagaajiyo iyo hoobiyeynta isku-dhafka ah, pvc resin, rinjiga loo yaqaan 'pvc rinjiyeynta', budada loo yaqaan 'pitty budada' iyo waxqabadka badeecada alaabada dhismaha. Thanks to Hagaajinta heerka magaalooyinka ee dalka, horumarka degdegga ah ee warshadaha qalabka dhismaha ee dhismaha, horumarka joogtada ah ee heerka mashiinka dhismaha ayaa kaxeeyey baahida loo qabo anshax-qoddaha aan dhisidda lahayn ee agabyada dhismaha.
2. Qalliinka Fasalka Daawada ee Ether
Qiyaasta unugyada ayaa si weyn loogu isticmaalaa jaakadaha filimka, aflagaadaha dawooyinka, filimada dawooyinka, cadar, kala-sooc, kaabsooyin khudradeed, oo la xakameeyay oo la xakameeyo iyo qaybaha kale ee dawooyinka. Iyada oo ah sheyga lafaha, cellese chether waxay leedahay howlo ku dheereeya waqtiga daroogada iyo kobcinta kala-sooca maandooriyaha iyo kala diridda; Sida kaabsal iyo daaha, waxay ka fogaan kartaa xaalado iyo isku xirnaanshaha isku xirka iyo jawaab-celinta daaweynta, waana shey qaali ah oo muhiim u ah soosaarka dawooyinka samafalka. Teknolojiyadda arjiga ee dawooyinka kacaanka dawooyinka cell etherku waa qaan-gaar ah ee wadamada horumaray.
3. Cunnadda Cunnada Cuntada Cunnada
Cunno-cunnada-cunnada ayaa ah ether-ka la aqoonsaday wax lagu daro cuntada lagu garto. Waxaa loo istcimaali karaa sidii cunno dhumuc weyn, xasilin iyo qoyaan si aad u dhumucdo, biyo siiya, iyo hagaajinta dhadhanka. Waxaa si weyn loogu isticmaalaa wadamada horumaray, oo inta badan loogu talagalay cunnooyinka cuntada lagu dubiyo, ceyriska la dubay, kareemka aan caajiska ahayn, cabitaannada miraha, hilibka iyo waxyaabaha kale ee borotiinka, cuntooyinka la shiilay, iwm.
Habka wax soo saarka ether ether ee ether
1. Hydroxyetylytyl methylrcellesuse
Habka diyaarinta ee hydroxytylylylrcelrelose, habka loo adeegsado suufka la safeeyey ee loo yaqaan 'puthen puthen' iyo ethylneemeene ovide sida wakiilka etherka ah si loogu diyaariyo metroxytylyl methylcellusyl. Qeybaha culeyska ee ashyaa'da ceyriinka ah ee loogu diyaariyo hydroxytylyl bylulel bylules waa sida soosocodka toouene iyo isopropanol oo ah liny-ether of Ethedyl, 80-80 qaybood oo ka mid ah methyl chloride, 16-19 qaybood oo ka mid ah acetic acetic aashitada; Tallaabooyinka gaarka ah waa:
Tallaabada ugu horreysa, ee jeblaadka falcelinta, ku dar isku dar ah iyo isopropropanol, biyo, iyo sodium hydroxide, kuleyl ilaa 60-80 ° C, oo ku hay 20-40 daqiiqo;
Tallaabada labaad, alantasization: Qabooji qalabka kor ku xusan ilaa 30-50 ° C, ku dar suuf la safeeyey, ku buufiyo toluene iyo isopropanol-ka isku dar ah, buuxi nitrogen-ka 3 beddelaad, oo fuliso alkali ka dib beddelka. Alkalinization, xaaladaha alkalin-ka waa: Waqtiga aleqalization waa 2 saacadood, heerkulka alantasization waa 30 ℃ 50 ℃;
Tallaabada saddexaad, xirashada: ka dib markii la dhammeeyo ka dib markii wax lagu xumaado, soo noqnoqodku wuxuu u daadgureeyay 0.05-0.07mpa, iyo methyne oxide iyo methyl chloride-ka ayaa lagu daray 30-50 daqiiqo; Marxaladda koowaad ee xirashada: 40-60 ° C, 1.0-2.0 saacadood, cadaadiska ayaa la xakameynayaa inta u dhexeysa 0.150.3mpa; Marxaladda labaad ee xirashada: 60 ~ 90 ℃, 2.0 ~ 2.5 saacadood, cadaadiska ayaa la xakameynayaa inta u dhexeysa 0.40.8mpa;
Tallaabada afraad, dhex-saar: Ku dar cabirka aashitada barafka ah ee ka-hortagga kiliiska, kor ugu qaad heerkulka 72 ° C. ah, oo qiimaha la helaana waa 68-da markii la xusayo. Taangiga qurxinta oo ka buuxaan ayaa ka buuxsamay 90 ℃ ~ 100 ℃ ℃ ℃ ℃ tuubada tuubada ayaa lagu daaweeyaa qalabka loo yaqaan 'osmosis'.
Tallaabada shanaad, carada centrifugal: maaddada tallaabada afraad waxay ku jirtaa Centrifuge Securt Securt Securt Securt Securr Securrit, oo agabka kala-goynta waxaa loo wareejiyaa haanta lagu dhaqo oo ka buuxaan biyo kulul.
Tallaabada lixaad, qalajinta centrifugal: sheyga la maydhay waxaa lagu gaadhsiiyaa qalajiyaha iyada oo loo marayo centrifeed daboolka toosan, iyo maaddada ayaa la qalajiyey 150-170 ° C, iyo maaddada qalalan ayaa la burburiyey oo xirxiran.
Marka la barbar dhigo tikniyoolajiyada soosaarka ee Ether Ether ee jira, oo ah wax-abuurka hadda jira wuxuu adeegsadaa Ethylineene Ovide inuu yahay wakiil saliideed oo u diyaarinaya hyroxytyl by byelyl bylule, kaas oo leh kooxo-cafiska wanaagsan ee ay ka mid yihiin kooxaha hydroxytyl. Waxay leedahay xasillooni muuqaal ah oo muuqaal ah iyo iska caabbinta qallalan inta lagu jiro kaydinta muddada-dheer. Waxaa loo isticmaali karaa halkii laga isticmaali lahaa ee kantaroolka kale ee keli ah.
2. Hydroxypropyl methylrcellesuse
(1) Ula daaweyta suufka ama fiilooyinka alwaaxa leh ee leh soodhada cagaha, ka dibna ka falceli mono-chloromethane iyo propylenemene oxide si isdaba joog ah si isdaba joog ah, loo nadiifiyo oo looxeeyo;
(2) Waxaa lagu helaa iyada oo la daweynayo darajada ku habboon ee miraha methyl ee leh sodium hydroxide, oo ay ka falceliyaan propylenenene-ka heerkulka sare iyo cadaadiska sare ee heerka ugu fiican, iyo nadiifinta. Miisaanka Moleculal wuxuu u dhexeeyaa 10 000 ilaa 1 500 000.
Waqtiga Post: apr-07-2023