Magaca kiimikada | Methyl Hydroxyethyl Cellulose |
La mid ah | Eter cellulose, 2-hydroxyethyl methyl cellulose, cellulose, 2-hydroxyethyl methyl ether, hydroxyethyl methyl cellulose, MHEC, HEMC |
Lambarka CAS | 9032-42-2 |
Summada | EipponCell |
Heerka Alaabta | MHEC LH 620M |
Solubility | Eter-ka Cellulose-ka Biyaha ah |
Qaab jireed | Caddaan iyo budada cellulose-ka ka baxsan |
Qoyaanka | ugu badnaan.6% |
PH | 4.0-8.0 |
Viscosity Brookfield 2% xal | 10000-20000mPa.s |
Viscosity NDJ 2% xal | 16000-24000mPa.S |
nuxurka dambaska | ugu badnaan 5.0% |
Cabbirka mesh | 99% dhaaf 100 mesh |
HS code | 39123900 |
EipponCell MHEC LH 620M methyl hydroxyethyl cellulose waxaa lagu isticmaalaa slurry gypsum si ay u bixiso saameyn dhumuc oo muuqata.Heerkulka qolka, sida viscosity iyo qiyaasta ether cellulose kordho, saamaynta dhumucdiisuna waxay noqotaa mid aad u cad.Si kastaba ha noqotee, marka heerkulku kordho, viscosity ee ether cellulose ayaa hoos u dhacaya, taasoo keentay daciifinta saameynteeda dhumucdeeda.Tani waxay keenaysaa hoos u dhac ku yimaadda diiqada xiirta, viscosity balaastikada, iyo pseudoplasticity ee isku dhafka gypsum, ugu dambeyntiina waxay keentaa shaqo xumo.
Eter cellulose waxay wanaajisaa haynta biyaha ee gypsum.Si kastaba ha noqotee, marka heerkulku kordho, haynta biyaha ee gypsum la beddelay ayaa si weyn hoos ugu dhacda oo xitaa gabi ahaanba luminaysa saamaynta hagaajinta haynta biyaha ee 60 °C.Heerka haynta biyaha ee slurry gypsum waxaa si weyn u wanaajiyay ether-ka cellulose, heerka haynta biyahana waxay si tartiib tartiib ah u gaartaa meel ay ka dheregto kororka maadada HPMC ee slurry gypsum-ka wax laga beddelay oo leh muuqaalo kala duwan.Guud ahaan, haynta biyaha ee gypsum waxay la mid tahay viskosity of cellulose ether, laakiin waxay leedahay saamayn yar at viscosity sare.
Isbeddellada haynta biyaha ee ethers cellulose leh heerkulku waxay si dhow ula xiriiraan qaab-dhismeedka microscopic ee ethers cellulose ee marxaladda dareeraha.Qayb gaar ah, ether cellulose waxay u egtahay in ay isku ururiso oo ay sameyso ururo waaweyn oo kolloidal ah, si wax ku ool ah u xannibaya marinnada biyaha ee isku dhafka gypsum si loo gaaro haynta biyaha hufan.Si kastaba ha noqotee, marka heerkulku kor u kaco, sifooyinka kulaylka kuleylka ee ether cellulose waxay sababaan ururo waaweyn oo kolloidal ah oo horay loo sameeyay si ay dib u kala firdhiyaan, taasoo keentay hoos u dhaca xajinta biyaha.
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