Waxqabadka iyo isticmaalka hydroxyethyl cellulose

Astaamaha Hydroxyethyl Cellulose

Astaamaha ugu muhiimsan ee hydroxyethyl cellulose waa in ay ku milmaan biyaha qabow iyo biyaha kulul labadaba, oo aan lahayn sifooyin jel ah.Waxay leedahay heerar kala duwan oo beddelaad ah, milmayn iyo viscosity, xasilloonida kulaylka wanaagsan (ka hooseeya 140 ° C), oo ma soo saarto jelatin xaaladaha acidic.roobab.Xalka Hydroxyethyl cellulose wuxuu sameyn karaa filim hufan, wuxuuna leeyahay sifooyinka nooca aan-ionic ahayn ee aan la falgelin ion oo leh iswaafajin wanaagsan.

① Heerkulka sare iyo milanka biyaha: Marka la barbar dhigo methyl cellulose (MC) oo kaliya ku milma biyaha qabow, hydroxyethyl cellulose waxaa lagu milmi karaa biyo kulul ama biyo qabow, mana soo da'aan heerkul sare ama karkarin, taasoo ka dhigaysa inay leedahay baaxad ballaaran oo milanka iyo sifooyinka viscosity, iyo guryaha aan kulaylka ahayn.

② Dulqaadka milixda: Maadaama aysan ahayn ionic, waxay la noolaan kartaa tiro balaadhan oo ah polymers-ka kale ee biyaha ku milma, surfactants, iyo cusbada.Sidaa darteed, marka la barbar dhigo ionic carboxymethyl cellulose (CMC), hydroxyethyl cellulose waxay leedahay iska caabin milix fiican.

③ Biyaha haynta, sinnaanta, iyo guryaha samaynta filimada: awoodeeda biyo-hayntu waxay laba jeer ka badan tahay tan methyl cellulose, waxayna leedahay nidaam qulqulka wanaagsan, sifooyinka samaynta filimada, xakamaynta luminta dareeraha, khalkhalka, iyo galmada kolloid ilaalinta.

Isticmaalka hydroxyethyl cellulose

Hydroxyethyl cellulose waa sheyga ether-ka cellulose-ka ah ee aan-ionic-ka-milmi karin, kaas oo si weyn loogu isticmaalo daaha-dhismaha, batroolka, polymerization-ka, daawada, isticmaalka maalinlaha ah, warqad iyo khad, dhar, dhoobo, dhismo, beero iyo warshado kale.Waxay leedahay hawlaha dhumucda, isku-xidhka, emulsifying, kala firdhiso iyo xasilinta, waxayna ilaalin kartaa biyaha, samayn kartaa filim waxayna siin kartaa saameyn kolloid ilaalin ah.Waxay si fudud ugu milmi kartaa biyo qabow iyo biyo kulul, waxayna ku siin kartaa xal leh aragti ballaadhan.Waa horumar sannadihii u dambeeyay.Mid ka mid ah ether-ka cellulose-ka ugu dhaqsaha badan.

1. Rinjiga cinjirka

Hydroxyethyl cellulose waa dhumucda ugu badan ee loo isticmaalo rinjiga cinjirka.Marka laga soo tago adkaynta rinjiga cinjirka, waxa kale oo uu komi kara, kala diri karaa, xasilin karaa oo hayn karaa biyaha.Waxaa lagu gartaa saameyn dhumuc leh oo cajiib ah, horumarinta midabka wanaagsan, sameynta filimka iyo xasilloonida kaydinta.Hydroxyethyl cellulose waa soosaar cellulose aan ionic ahayn oo loo isticmaali karo pH ballaaran.Waxay si fiican ula jaanqaadi kartaa walxaha kale ee ka kooban (sida midabada, waxyaabaha lagu daro, buuxinta iyo cusbada).Dahaarrada lagu qariyey hydroxyethyl cellulose waxay leeyihiin rheology wanaagsan oo heerar kala duwan oo xiirid ah waxayna yihiin kuwo been abuur ah.Hababka dhismaha sida daahan burushka, dahaarka rullaluistemadka iyo daahan buufin waa la qaadan karaa.Dhisme wanaagsan, ma fududa in lagu tifxo, sagxdo oo firdhiso, iyo hanti simi ah oo wanaagsan.

2. Polymerization

Hydroxyethyl cellulose waxa uu leeyahay hawlaha kala firdhiso, emulsifying, laalista iyo xasilinta ee polymerization ama qaybaha copolymerization ee resins synthetic, iyo waxa loo isticmaali karaa sida kolloid ilaalinta.Waxaa lagu gartaa awood xoog leh oo kala firdhisan, qayb khafiif ah "filim", size qayb ka ganaax, qaabka qayb uniform, nooca dabacsan, dheecaan wanaagsan, daahfurnaanta alaabta sare iyo processing fudud.Sababtoo ah hydroxyethyl cellulose waxaa lagu milmi karaa biyo qabow iyo biyo kulul, oo aan lahayn dhibic heerkulka gelation, waxay aad ugu habboon tahay falcelinta polymerization ee kala duwan.

Sifooyinka muhiimka ah ee jireed si loo baaro tayada kala firdhisyadu waa xiisadda dusha sare (ama isdhaafsiga), xoogga wajiga iyo heerkulka gelation ee xalkeeda aqueous.Sifooyinkan hydroxyethyl cellulose waxay ku habboon yihiin polymerization ama copolymerization of resins synthetic.Hydroxyethyl cellulose waxay leedahay iswaafajin wanaagsan oo leh ethers cellulose-ka kale ee biyaha ku milma iyo PVA.Nidaamka isku-dhafka ah ee sidaas loo sameeyay wuxuu heli karaa saameynta guud ee barashada midba midka kale.Badeecadaha resin ee la sameeyay ka dib marka la isku daro ma aha oo kaliya tayada wanaagsan, laakiin sidoo kale waxay yareeyaan khasaaraha alaabta.

3. Shidaal qodis

Qoditaanka saliidda iyo soo saarista, viscosity hydroxyethyl cellulose inta badan waxaa loo isticmaalaa dhumuc si loo dhamaystiro dareerayaasha iyo dhamaystirka dareerayaasha.Viscosity hoose ee hydroxyethyl cellulose waxa loo istcimaalaa yaraynta luminta dareeraha.dhoobo kala duwan oo loo baahan yahay qodista, dhamaystirka ceelasha, sibidhka ceelka iyo hawlgallada jajabinta, hydroxyethyl cellulose waxaa loo isticmaalaa dhumuc weyn si loo helo dareere wanaagsan iyo xasiloonida dhoobada.Inta lagu jiro qodista, waxay wanaajin kartaa awoodda carrada qaadida dhoobada waxayna sii dheereyn kartaa nolosha adeegga qashinka.Dheecaan dhammaystiran oo adag oo hooseeya iyo dareeraha sibidhka, luminta biyaha aadka u fiican ee yaraynta waxqabadka hydroxyethyl cellulose waxay ka hortagi kartaa xaddi badan oo biyo ah oo ka soo galaya lakabka saliidda ee dhoobada, waxayna hagaajin kartaa awoodda wax soo saarka lakabka saliidda.

4. Kiimikada maalinlaha ah

Hydroxyethyl cellulose waa wakiil samaynta filim wax ku ool ah, xidhe, dhumuc weyn, xasiliye iyo kala firdhiso shaambada, buufinta timaha, dhexdhexaadiyeyaasha, qaboojiyaha timaha iyo waxyaalaha la isku qurxiyo;budada lagu dhaqo Waa wakiilka dib u dhiska ciidda.Hydroxyethyl cellulose waxay si dhakhso ah u milmaan heerkul sare, taas oo dedejin karta habka wax soo saarka iyo hagaajinta waxtarka wax soo saarka.Muuqaalka muuqda ee saabuunta ka kooban hydroxyethyl cellulose waa in ay wanaajiso jilicsanaanta iyo jilicsanaanta dharka.

5. Dhismaha

Hydroxyethyl cellulose waxaa loo isticmaali karaa alaabta dhismaha sida isku-dhafka shubka ah, hoobiye cusub, gypsum plaster ama sibidhyo kale, iwm., si loo ilaaliyo biyaha inta lagu jiro dhismaha ka hor intaanay dejin oo engegin.Marka lagu daro hagaajinta haynta biyaha ee alaabta dhismaha, hydroxyethyl cellulose waxay sidoo kale dheereysaa hagaajinta iyo wakhtiga furan ee malaasta ama masticka.Waxay yarayn kartaa maqaarka maqaarka, siibanaya iyo hoos u dhaca.Sidaa darteed, waxqabadka dhismaha waa la hagaajin karaa, waxtarka shaqada waa la kordhin karaa, waqtina waa la badbaadin karaa.Isla mar ahaantaana, heerka ballaarinta awoodda stucco waa la wanaajin karaa, taas oo lagu badbaadinayo alaabta ceeriin.

6. Beeraha

Hydroxyethyl cellulose waxaa loo isticmaalaa samaynta emulsions iyo cayayaan cayayaanka, sidii dhumuc loogu talagalay emulsions buufin ama ganaax.Waxay yareyn kartaa qulqulka kiimikooyinka waxayna ka dhigi kartaa inay si adag ugu dhegto caleemaha dhirta, taas oo kordhinaysa saameynta buufinta foliar.Hydroxyethyl cellulose sidoo kale waxaa loo isticmaali karaa sidii wakiilka filim sameynta ee wakiilada daahan abuurka;sida xidhe iyo filim samaynta wakiilka ee dib u warshadaynta caleemaha tubaakada.

7. Warqad samaynta iyo daabacaadda khad

Hydroxyethyl cellulose waxaa loo isticmaali karaa sidii wakiilka cabbirka ee warqadaha iyo looxa iyo sidii dhumuc iyo hakinta khadadka biyaha ku salaysan.Habka waraaqaha, sifooyinka sare ee hydroxyethyl cellulose waxaa ka mid ah iswaafajinta inta badan cirridka, resins iyo cusbada aan noolaha ahayn, xumbo yar, isticmaalka oksijiinta hooseeya iyo awoodda sameynta filim dusha sare ah.Filimku wuxuu leeyahay duleel hooseeya oo dusha sare ah iyo dhalaalaya sare, kaas oo sidoo kale yarayn kara kharashka.Warqad lagu cabbiro hydroxyethyl cellulose, oo loo isticmaali karo daabacaadda sawirro tayo sare leh.Marka la samaynayo khad biyaha ku salaysan, khad biyaha ku salaysan oo lagu dhumucday hydroxyethyl cellulose si degdeg ah ayuu u engegaa, midabkiisuna wanaagsan yahay, mana keeno ku dheggan.

8. Dharka

Waxa loo isticmaali karaa sidii wax-ku-xidhaha iyo cabbiraadda daabacaadda dharka iyo koollada midabaynta iyo rinjiga cinjirka;sida dhumuc weyn oo loogu talagalay walxaha cabbirka ee dhabarka roogagga.In fiber galaaska, waxaa loo isticmaalaa sida wakiilka samaynta iyo xidhe;ee koollada maqaarka, waxa loo isticmaali karaa sidii wax ka beddelka iyo xidhe.Sii kala duwanaansho ballaadhan oo dahaarka ama xabagta, ka dhig dahaarka mid labis ah oo dhakhso badan, oo wanaaji caddaynta daabacaadda iyo midabaynta.

9. Ceramics

Waxa loo isticmaali karaa in lagu sameeyo isku-xidhayaasha xoogga sare leh ee dhoobada.

10. Daawada ilkaha

Waxa loo isticmaali karaa dhumuc ahaan marka la samaynayo daawada cadayga.