Ethylcellulose yog ib hom polymer uas siv tau ntau yam hauv ntau yam lag luam, suav nrog tshuaj, tshuaj pleev xim, nplaum thiab khoom noj. Muaj ntau hom ethylcellulose sib txawv kom ua tau raws li qhov xav tau tshwj xeeb xws li viscosity, molecular weight thiab lwm yam khoom.
Cov qauv ntawm ethyl cellulose:
Ethylcellulose yog ib qho derivative ntawm cellulose, ib qho polymer ntuj pom nyob rau hauv cov nroj tsuag cell phab ntsa. Ethylation ntawm cellulose cuam tshuam nrog kev qhia txog cov pab pawg ethyl rau hauv hydroxyl (-OH) functionality ntawm cellulose. Qhov kev hloov kho no muab ethylcellulose cov khoom tshwj xeeb, ua rau nws soluble hauv cov organic solvents thiab muab cov peev xwm zoo heev-ua zaj duab xis-tsim.
Cov yam ntxwv ntawm ethylcellulose:
Kev yaj: Ethylcellulose yaj tau hauv ntau yam organic solvents, xws li cawv, ketones, esters, thiab lwm yam.
Cov yam ntxwv tsim zaj duab xis: Cov yam ntxwv tsim zaj duab xis zoo heev, tsim nyog rau kev pleev xim thiab zaj duab xis.
Thermoplasticity: Ethylcellulose ua rau pom tus cwj pwm thermoplastic, uas cia nws ua molded lossis tsim thaum rhuab.
Inert: Nws yog tshuaj lom neeg inert, muab kev ruaj khov hauv ntau yam kev siv.
Cov Qib ntawm Ethylcellulose:
1. Qib viscosity qis:
Cov qib no muaj qhov hnyav molecular qis dua thiab yog li ntawd viscosity qis dua.
Zoo tagnrho rau cov ntawv thov uas xav tau cov txheej nyias nyias lossis cov yeeb yaj kiab.
Piv txwv li suav nrog cov tshuaj uas tswj tau tso tawm thiab cov txheej nyias nyias ntawm cov ntsiav tshuaj.
2. Qib viscosity nruab nrab:
Nruab nrab molecular hnyav thiab viscosity.
Nws yog siv dav hauv kev lag luam tshuaj rau cov qauv tso tawm tas mus li, qhov twg qhov sib npaug ntawm cov tuab ntawm txheej thiab qhov nrawm ntawm kev tso tawm yog qhov tseem ceeb.
Kuj tseem siv rau hauv kev tsim cov nplaum tshwj xeeb thiab cov sealants.
3. Qib siab viscosity:
Cov qib no muaj qhov hnyav molecular siab dua thiab yog li ntawd cov viscosities siab dua.
Zoo tagnrho rau cov ntawv thov uas xav tau cov txheej tuab lossis cov yeeb yaj kiab.
Siv rau hauv kev tsim cov tshuaj tiv thaiv xws li cov kua mem, xim thiab cov kua roj vanish.
4. Qib zoo-grained:
Cov qib no muaj cov khoom me me dua, uas pab ua kom cov txheej txheem du thiab txhim kho kev sib kis hauv cov tshuaj.
Nrhiav cov ntawv thov rau cov kua mem luam ntawv zoo thiab cov tshuaj pleev xim rau kev npaj cov nto zoo.
5. Cov qib siab ethoxy:
Ethylcellulose nrog qib siab ntawm ethoxylation.
Muab kev solubility zoo dua hauv ntau yam tshuaj solvents.
Siv rau hauv cov ntawv thov uas xav tau cov polymers solubility siab dua, xws li qee cov tshuaj formulations.
6. Cov dej noo tsawg:
Ethyl cellulose nrog cov dej noo tsawg dua.
Zoo tagnrho rau cov ntawv thov uas muaj kev txhawj xeeb txog dej noo, xws li kev tsim cov tshuaj uas rhiab dej.
7. Cov qib thermoplastic:
Cov qib no qhia tau tias muaj tus cwj pwm thermoplastic zoo dua.
Siv rau hauv cov ntawv thov molding qhov twg cov ntaub ntawv xav tau softened thiab puab ntawm high tempers.
8. Qib tso tawm tswj tau:
Tsim los rau cov tshuaj uas xav tau kev tswj hwm kev tso tawm tshuaj ntev.
Tsim los kom ua tiav qhov kev tso tawm kinetics xav tau thaum tswj kev ruaj khov.
Cov ntawv thov ntawm ethylcellulose:
1. Cov Tshuaj:
Cov tshuaj uas tswj tau tso tawm.
Cov tshuaj pleev rau qhov saj thiab tswj kev yaj.
Cov khoom siv rau cov granules hauv kev tsim cov ntsiav tshuaj.
2. Cov xim pleev thiab cov kua mem:
Kev tiv thaiv txheej txheem rau ntau qhov chaw.
Cov kua xim rau kev luam ntawv flexographic thiab gravure.
Cov txheej txheem tsheb thiab kev lag luam.
3. Cov nplaum thiab cov khoom foob:
Cov nplaum tshwj xeeb rau ntau yam kev siv.
Cov tshuaj sealant siv rau kev sib txuas thiab kev sib khi hauv kev tsim kho thiab kev tsim khoom.
4. Kev lag luam zaub mov:
Cov txheej txheem noj tau rau ntawm cov txiv hmab txiv ntoo thiab zaub ua rau lub txee ntev dua.
Kev sib xyaw ua ke ntawm cov tsw qab thiab cov ntxhiab tsw qab.
5. Yas thiab Moulding:
Kev coj ua thermoplastic hauv kev siv molding.
Tsim cov khoom yas tshwj xeeb.
6. Cov khoom siv hluav taws xob:
Siv rau hauv kev tsim cov txheej tiv thaiv rau cov khoom siv hluav taws xob.
xaus lus:
Muaj ntau hom ethylcellulose los siv tau rau ntau yam lag luam sib txawv. Txij li cov tshuaj mus rau cov tshuaj pleev xim thiab cov nplaum, ethylcellulose muaj ntau yam sib txawv, txhua hom tsim los kom tau raws li qhov xav tau tshwj xeeb. Raws li kev siv tshuab thiab kev lag luam txuas ntxiv mus, kev tsim cov ethylcellulose tshiab nrog cov khoom zoo dua tuaj yeem ua lub luag haujlwm tseem ceeb hauv kev ua kom tau raws li qhov xav tau ntawm cov ntawv thov tshiab. Kev nkag siab txog qhov sib txawv ntawm cov qib no ua rau cov chaw tsim khoom xaiv cov ethylcellulose zoo tshaj plaws rau lawv daim ntawv thov tshwj xeeb, kom ntseeg tau tias muaj kev ua tau zoo thiab ua haujlwm tau zoo.
Lub sijhawm tshaj tawm: Lub Kaum Ob Hlis-20-2023