Eter-ka cellulosewaa polymers-ka biyaha ku milma oo laga soo qaatay cellulose, polymer-ka ugu badan ee dabiiciga ah. In ka badan 60 sano, alaabooyinkan la taaban karo ayaa door muhiim ah ka ciyaaray codsiyo badan, laga soo bilaabo alaabta dhismaha, ceramics iyo rinjiga ilaa cuntooyinka, qurxinta iyo dawooyinka.
Alaabooyinka dhismaha, ether-ka cellulose-ku waxay u shaqeeyaan sidii dhumucyo, xidhiyaal, filim hore iyo wakiilada biyaha ceejinta. Waxay sidoo kale u shaqeeyaan sida kaaliyeyaasha joojinta, surfactants, saliidaha, kolloysyada ilaalinta iyo emulsifers. Intaa waxaa dheer, xalalka aqueous ee ethers cellulose qaarkood kuleyl jel, hanti gaar ah oo door muhiim ah ka ciyaara la yaab leh.
kala duwan ee codsiyada. Isku dhafkan qiimaha leh ee guryaha lagama helo polymer kale oo biyo-milmi leh.
Xaqiiqda ah in hanti badan oo faa'iido leh ay isku mar joogaan oo inta badan u dhaqmaan si isku dhafan waxay noqon kartaa faa'iido dhaqaale oo muhiim ah. Codsiyo badan, laba, saddex ama in ka badan oo maaddooyin ah ayaa loo baahan doonaa si ay u qabtaan shaqo isku mid ah oo ay qabato hal sheyga eter cellulose. Intaa waxaa dheer, ether-ka cellulose waa mid aad waxtar u leh, inta badan
soo saarista waxqabadka ugu fican oo ka hooseeya kii loo baahnaa polymers-ka kale ee biyaha ku milma.
Kiimikooyinka Dhismaha Dow waxay soo bandhigaan noocyo badan oo badeecooyin cellulosic ah, oo ay ku jiraan methyl cellulose, hydroxyethyl cellulose iyo karboxymethyl cellulose. Methyl cellulose ethers ayaa inta badan loo isticmaalaa codsiyada badan ee dhismaha iyo warshadaha dhismaha.
Kiimikada Cellulose Ethers
Ganacsigeenu wuxuu bixiyaa ethers cellulose afar nooc oo asaasi ah:
1.Hydroxyethyl methyl cellulose (HEMC/MHEC)
2.Hydroxypropyl methyl cellulose (HPMC, MC)
3.Hydroxyethyl cellulose (HEC)
4.Carboxy methyl cellulose(CMC)
Labada noocba waxay leeyihiin laf-dhabarka polymeric ee cellulose, karbohaydrayt dabiici ah oo ka kooban qaab-dhismeedka soo noqnoqda ee aasaasiga ah ee unugyada anhydroglucose. Inta lagu jiro soo saarista ethers cellulose, fiilooyinka cellulose waxaa lagu kululeeyaa xal caustic ah, taas bedelkeeda, waxaa lagu daaweeyaa methyl chloride, iyo propylene oxide ama ethylene oxide, oo soo saara hydroxypropyl methyl cellulose ama hydroxyethyl methyl cellulose, siday u kala horreeyaan. Alaabada falcelinta fayruuska ah waa la nadiifiyey oo lagu rusheeyey budo labis ah.
Alaabooyinka heerka gaarka ah ayaa sidoo kale loo sameeyay si ay u buuxiyaan shuruudaha warshadaha gaarka ah.
Badeecadaha ether-ka cellulose-ka waxa lagu heli karaa saddex nooc oo kala duwan: budo, budo dusha lagu daweeyay iyo granular. Nooca badeecada la sameeyay ayaa saameyn ku yeelanaysa qaabka doorashada. Inta badan codsiyada qalalan ee qalalan, budada aan la daweyn ayaa sida caadiga ah loo isticmaalaa, halka codsiyada diyaarsan, taas oo budada cellulosic si toos ah loogu daro biyaha, budada dusha lagu daaweeyay ama foomamka granular ayaa la door bidaa.
Guryaha Guud
Guryaha guud ee ay wadaagaan ether-ka cellulose-ka ayaa halkan ku taxan. Alaabooyinka gaarka ah waxay soo bandhigaan guryahan heerar kala duwan waxaana laga yaabaa inay leeyihiin
additional properties desirable for specific applications. For more information, email at sales@kimachemical.com .
| Hanti | Faahfaahin | Faa'iidooyinka |
| Ku xidhidh | Waxa loo adeegsaday xidheyaal waxqabad sare leh oo loogu talagalay agabka fber-cement-ka ee la soo saaray | Xooga cagaaran |
| Emulsifcation | Xasiji emulsions adiga oo yareynaya xiisadaha dusha iyo wajiga dhexdooda iyo adigoo | Xasilooni |
| Sameynta filimada | Samee flms cad, adag, dabacsan oo biyo-milmi kara | • Caqabadaha ugu wanaagsan ee saliidda iyo dufanka |
| Saliid | Waxay yaraynaysaa qulqulka sibidhka; waxay wanaajisaa awooda shaqaynta qalabka gacanta | • Bamgareynta shubka, weelka mashiinka iyo buufinta oo la hagaajiyay |
| Nonionic | Alaabooyinku ma laha lacag ionic ah | • Kuma adkaan doono cusbada macdan ama noocyada kale ee ionic si ay u sameeyaan |
| Solubility (organic) | Ku milmay nidaamka dareeraha organic iyo organic binary ee noocyada iyo darajooyinka la doortay | Isku darka gaarka ah ee milanka dabiiciga ah iyo milanka biyaha |
| milmi (biyaha) | • Alaabta dusha lagu daaweeyay/granular si toos ah ayaa loogu dari karaa aqueous | • Fududeynta kala firdhinta iyo kala dirida |
| xasilloonida pH | Deggan in ka badan pH u dhaxaysa 2.0 ilaa 13.0 | • Degganaanshaha viscosity |
| Dhaqdhaqaaqa dusha sare | • U shaqee sidii surfactants xal aqueous ah | • Emulsifcation |
| Ka joojinta | Waxay xakameysaa dejinta walxaha adag ee nidaamyada aqueous | • Ka-hortagga dejinta isku-darka ama midabada |
| Gelation-ka kulaylka | Waxay ku dhacdaa xalalka aqueous ee ethers methyl cellulose marka la kululeeyo heerkul gaar ah | • Guryaha deg-degga ah ee la kontarooli karo Gel-ku wuxuu ku noqdaa xal marka la qaboojiyo |
| Dhumayn | Miisaanno ballaaran oo unugyo ah oo loogu talagalay adkeynta nidaamyada biyaha ku saleysan | • Kala duwanaanshaha ereyada rheological |
| Haysashada biyaha | Wakiilka biyaha-hayn ee awoodda leh; waxay ku ilaalinaysaa biyaha habab la sameeyay | • Aad u hufan |
Xabagta Tileyska ee Sibidhka ku salaysan
Badeecadahayadu waxay awood u siinayaan waxqabadka hoobiyeyaal khafiif ah iyada oo loo marayo haynta biyaha iyo waxqabadka rheological pseudoplastic. Gaadhi kareem iyo fududaan shaqayn iyo joogtayn, haynta biyaha sare, hagaajinta qoynta foornada, wakhti furan oo aad u fiican iyo wakhtiga hagaajinta, iyo in ka badan.
Tile Grouts
Cellulose ethers waxay u shaqeeyaan sidii biyo haynta iyo gargaarka joojinta. Soo hel karti-fudud, ku-dhejin wanaagsan oo cidhifyada tiirarka, yaraynta hoose, caabbinta naaxinta sare, adkaanta iyo isku-xidhnaanta wanaagsan, iyo in ka badan.
Hoos-u-dhigid-is-heeraynta
Cellulosics waxay siisaa haynta biyaha iyo saliidda si loo hagaajiyo qulqulka iyo bamgareynta, yareeyaan kala soocida iyo wax ka badan.
Hoobiyeyaasha EIFS/Koodhka Skim
Keen taabasho dhammaystiran oo qumman oo leh karti-shaqayn oo la wanaajiyey, xasilinta hawada madhan, dhejinta, haysashada biyaha iyo wax ka badan.
Balaastiirada Sibidhka ku salaysan
Bixi waxqabad ka wanaagsan iyada oo loo marayo iska caabbinta sagxada oo la hagaajiyay, karti-shaqayn, waqti furan, xasilinta hawada-madhan, adhesion, haynta biyaha, wax-soo-saarka iyo wax ka badan.
Qalabka Dhismaha Ku Salaysan Gypsum
Bixi natiijada dhamaadka la doonayo ee siman, xitaa iyo dusha waara oo leh tayada badeecada joogtada ah iyo sifooyinka waxqabadka muhiimka ah.
Walxaha Sibidhka iyo Sibidhka-Fiber-ka la soo saaray
Iska yaree is jiid jiidka oo sii subag si aad u caawiso extrusion iyo hababka kale ee samaynta.
Nidaamyada Latex-ku-saleysan (Diyaar-in-la Isticmaalo)
Noocyo kala duwan oo darajooyin viscosity ah ayaa keenaya karti-shaqayn wanaagsan, dib u dhac milmay, waqti furan, wakhtiga laqabsiga iyo wax ka badan.
Waqtiga boostada: Nov-13-2018