Hydroxyethyl cellulose (HEC)yog ib qho cellulose ether uas tsis yog ionic ua los ntawm cov khoom siv polymer cellulose los ntawm ntau yam etherification. Nws yog ib qho hmoov dawb lossis granule uas tsis muaj ntxhiab, tsis muaj saj, tsis muaj tshuaj lom, uas tuaj yeem yaj rau hauv dej txias los ua cov kua nplaum pob tshab, thiab qhov kev yaj tsis cuam tshuam los ntawm tus nqi pH. Nws muaj cov khoom ua kom tuab, khi, tawg, emulsifying, tsim zaj duab xis, suspending, adsorbing, surfactant, noo noo-tuav thiab ntsev-resistant. Siv dav hauv xim, kev tsim kho, textile, tshuaj lom neeg txhua hnub, ntawv, roj drilling thiab lwm yam lag luam.
Cov chaw thov tseem ceeb:
1. Xim: Xim dej yog cov kua nplaum uas muaj cov organic solvents lossis dej ua los ntawm cov resin, lossis roj, lossis emulsion, nrog rau cov khoom ntxiv. Cov txheej txheem dej uas muaj kev ua tau zoo heev yuav tsum muaj kev ua haujlwm zoo heev, muaj zog zais zoo, muaj zog nplaum, thiab khaws dej tau zoo; cellulose ether yog cov khoom siv raw zoo tshaj plaws los muab cov yam ntxwv no.
2. Kev Tsim Kho: Hauv kev lag luam kev tsim kho, HEC yog siv los ua cov khoom siv ntxiv rau cov ntaub ntawv xws li cov ntaub ntawv phab ntsa, pob zeb (xws li asphalt), cov vuas nplaum thiab cov ntaub ntawv caulking, uas tuaj yeem ua rau kom cov viscosity thiab tuab ntawm cov ntaub ntawv tsim kho, txhim kho kev nplaum, lubricity, thiab kev khaws cia dej. Txhim kho lub zog flexural ntawm cov khoom lossis cov khoom, txhim kho shrinkage, thiab zam kev tawg ntawm ntug.
3. Cov ntaub: Paj rwb kho nrog HEC, cov xov hluavtaws lossis cov sib xyaw ua ke txhim kho lawv cov khoom xws li kev tiv taus kev sib txhuam, kev zas xim, kev tiv taus hluav taws thiab kev tiv taus xim, nrog rau kev txhim kho lawv lub cev ruaj khov (shrinkage) thiab kev ua haujlwm ntev, tshwj xeeb tshaj yog rau cov xov hluavtaws, uas ua rau lawv ua pa tau thiab txo cov hluav taws xob zoo li qub.
4. Cov tshuaj lom neeg txhua hnub: Cellulose ether yog ib qho tseem ceeb ntxiv rau cov khoom siv tshuaj txhua hnub. Nws tsis tsuas yog txhim kho qhov viscosity ntawm cov kua lossis emulsion tshuaj pleev ib ce, tab sis kuj txhim kho kev sib kis thiab kev ruaj khov ntawm cov ua npuas ncauj.
5. Ntawv: Hauv daim teb ua ntawv, HEC siv tau ua tus neeg sawv cev loj, tus neeg sawv cev txhawb zog thiab tus hloov kho ntawv.
6. Kev khawb roj: HEC feem ntau yog siv los ua tus neeg sawv cev thickening thiab stabilizing hauv cov txheej txheem kho roj. Nws yog ib qho tshuaj zoo hauv roj. Nws tau siv dav hauv kev khawb, ua kom tiav qhov dej, cementing thiab lwm yam kev tsim roj hauv txawv teb chaws xyoo 1960.
Lwm cov teb ntawm daim ntawv thov:
HECtuaj yeem ua lub luag haujlwm ntawm kev lo rau cov tshuaj lom rau ntawm nplooj hauv kev ua haujlwm txau; HEC tuaj yeem siv ua cov khoom ua kom tuab rau cov tshuaj tsuag emulsions kom txo cov tshuaj drift, yog li ua rau kev siv cov txiaj ntsig ntawm kev txau nplooj. HEC kuj tseem tuaj yeem siv ua tus neeg sawv cev tsim zaj duab xis hauv cov neeg sawv cev txheej noob; ua tus binder hauv kev rov ua dua ntawm cov nplooj luam yeeb. Hydroxyethyl cellulose tuaj yeem siv ua cov khoom ntxiv los ua kom muaj kev ua haujlwm npog ntawm cov ntaub ntawv tiv thaiv hluav taws, thiab tau siv dav hauv kev npaj cov "thickeners" tiv thaiv hluav taws. Hydroxyethyl cellulose tuaj yeem txhim kho lub zog ntub thiab shrinkability ntawm cov xuab zeb cement thiab sodium silicate xuab zeb systems. Hydroxyethyl cellulose tuaj yeem siv rau hauv kev tsim cov yeeb yaj kiab thiab ua tus dispersant hauv kev tsim cov microscopic slides. Thickener hauv cov kua nrog cov ntsev ntau siv hauv kev ua cov yeeb yaj kiab. Siv ua tus binder thiab tus dispersant ruaj khov rau cov neeg sawv cev fluorescent hauv cov txheej txheem fluorescent tube. Nws tuaj yeem tiv thaiv cov colloid los ntawm kev cuam tshuam ntawm electrolyte concentration; hydroxyethyl cellulose tuaj yeem txhawb kev sib xyaw ua ke hauv cov kua cadmium plating. Tuaj yeem siv los tsim cov khoom siv binders muaj zog rau ceramics. Cov tshuaj tiv thaiv dej tiv thaiv cov dej noo los ntawm kev nkag mus rau hauv cov cables puas.
Lub sijhawm tshaj tawm: Plaub Hlis-25-2024