1. Waxyaabaha ceeriin ee ether cellulose
Eter-ka Cellulose ee loogu talagalay dhismaha waa polymer-ka aan-ionic-ka ahayn ee biyaha-milmi kara oo isha laga helo:
Cellulose ( Saxarka alwaax ama suufka suufka ah), hydrocarbons halogenated (methane chloride, ethyl chloride ama halides kale oo silsilad dheer ah), xeryahooda epoxy (ethylene oxide, propylene oxide, iwm.)
HPMC-Hydroxypropyl Methyl Cellulose Ether
HEC-Hydroxyethyl Cellulose Eter
HEMC-Hydroxyethyl Methyl Cellulose Eter
EHEC-Ethyl Hydroxyethyl Cellulose Eter
MC-methyl cellulose ether
2. Guryaha etherka cellulose
Astaamaha ether-ka cellulose waxay ku xiran yihiin:
Darajada Polymerization DP Tirada unugyada gulukooska—viskosity
Ku-beddelayaasha iyo heerka beddelkooda, heerka la midka ah beddelka -- go'aami goobta codsiga
Cabbirka Walxaha—--Moolaansho
Daawaynta dusha sare (ie kala diri daahday)—-wakhtiga viscosity wuxuu la xidhiidhaa qiimaha pH ee nidaamka
Shahaadada wax ka beddelka—--Hagaajinta iska caabbinta sag-guud iyo karti-shaqaynta ether-ka cellulose
3. Doorka ether cellulose - haynta biyaha
Eter cellulose waa silsilad silsilad polymer ah oo ka kooban unugyada β-D-glucose.Kooxda hydroxyl ee ku jirta molecule iyo atomka oksijiinta ee ku jira curaarta ether-ka waxay samaystaan xidhid haydarojiin ah oo ay la socdaan molecule-ka biyaha, kaas oo xayaysiiya molecule-biyoodka dusha sare ee silsiladda polymer oo isku xidha molecules-yada.Silsiladda, waxay dib u dhigtaa uumiga biyaha waxaana nuugaya lakabka saldhigga.
Faa'iidooyinka ay bixiyaan guryaha haynta biyaha ee ethers cellulose:
Looma baahna in la qoyso lakabka saldhigga, habka badbaadinta
dhismo wanaagsan
xoog ku filan
4. Doorka ether cellulose - saamaynta dhumucdiisuna
Eter cellulose waxay kordhin kartaa isku-xidhka ka dhexeeya qaybaha gypsum-ku-salaysan ee hoobiye, taas oo ka muuqata kororka joogtada ah ee hoobiye.
Faa'iidooyinka ugu muhiimsan ee ay bixiso dhumucda ethers cellulose waa:
Iska yaree dambaska dhulka
Kordhi adhesion ilaa salka
Iska yaree qulqulka hoobiye
xabashida xaji
5. Doorka ether cellulose - dhaqdhaqaaqa dusha sare
Eter cellulose waxa ku jira kooxaha hydrophilic (kooxaha hydroxyl, ether bonds) iyo kooxaha hydrophobic (kooxaha methyl, kooxaha ethyl, giraanta gulukooska) waana surfactant.
(Cirka dusha sare ee biyuhu waa 72mN/m, surfactant waa 30mN/m, iyo ether cellulose waa HPC 42, HPMC 50, MC 56, HEC 69, CMC 71mN/m)
Faa'iidooyinka ugu muhiimsan ee ay bixiso dhaqdhaqaaqa dusha sare ee ethers cellulose waa:
Saamaynta hawo-ku-jiidashada ( xoqid siman, cufnaanta qoyan ee hooseeya, moodooyinka laastikada hoose, caabbinta qaboojinta)
Qooynta (waxay kordhisaa ku dheggan substrate)
6. Shuruudaha gypsum malaasta iftiinka ee etherka cellulose
(1).Biyo haynta wanaagsan
(2).Shaqo wanaagsan, ma jirto
(3).Dufcaddii xoqid siman
(4).Xoogan ka-hortagga sagging
(5).Heerkulka gelku wuxuu ka sarreeyaa 75 ° C
(6).Heerka kala diris degdeg ah
(7).Way fiicantahay in lahelo awooda hawada lagu soo shubo oo lagu dejiyo xumbo hawada ku jirta hoobiye
11. Sida loo go'aamiyo qiyaasta ether cellulose
Malaasta-malaasta, waxaa lagama maarmaan ah in lagu hayo biyo ku filan hoobiye muddo dheer si loo helo karti shaqo oo wanaagsan oo looga fogaado dildilaaca dusha sare.Isla mar ahaantaana, ether cellulose waxay haysaa qadar ku habboon oo biyo ah muddo dheer si ay hoobiyedu u yeeshaan habka xinjirowga oo deggan.
Qadarka ether cellulose waxay kuxirantahay:
Viscosity ee ether cellulose
Habka wax soo saarka ee ether cellulose
Waxyaalaha Beddelka ah iyo Qaybinta Cellulose Ether
Qaybinta Cabbirka Qaybaha Eter-ka Cellulose
Noocyada iyo ka kooban hoobiye gypsum ku salaysan
Awoodda nuugista biyaha ee lakabka saldhigga
Isticmaalka Biyaha ee Faafinta Caadiga ah ee Hoobiye Ku Salaysan Gypsum
Dejinta wakhtiga hoobiye ku salaysan gypsum
Dhumucda dhismaha iyo waxqabadka dhismaha
Xaaladaha dhismaha (sida heerkulka, xawaaraha dabaysha, iwm.)
Habka dhismaha (xarigga gacanta, buufinta farsamada)
Waqtiga boostada: Jan-18-2023