HEC (Hydroxyethyl Cellulose)yog dav siv nyob rau hauv coatings vim nws zoo heev thickening, film-forming, moisturizing thiab dispersing zog.
1. Thickener
HEC feem ntau yog siv los ua cov thickener rau cov dej-raws li txheej txheej, uas tuaj yeem ua kom cov viscosity ntawm txheej txheej thiab ua kom cov txheej txheem yooj yim dua thaum txheej txheej txheej txheej. Vim tias HEC yog dej-soluble, nws tuaj yeem muab cov nyhuv thickening ntawm qhov qis qis, pab cov txheej txheem kom zoo rheological zog. Qhov no yog qhov tshwj xeeb tshaj yog rau cov ntawv thov xws li tshuaj tsuag thiab txhuam kom tsis txhob muaj cov xim sagging thaum siv.
2. Ua ib txheej txheej zaj duab xis
HEC muaj cov yeeb yaj kiab zoo heev thiab tuaj yeem tsim cov yeeb yaj kiab zoo li qub thiab du txheej thaum lub sijhawm ziab. Cov yam ntxwv no ua rau HEC dav siv hauv cov txheej txheem dej, xws li phab ntsa txheej thiab cov txheej ntoo. HEC pab txhim kho cov adhesion thiab dej tsis kam ntawm txheej zaj duab xis, yog li txhim kho cov kav ntev thiab kev tiv thaiv ntawm txheej.
3. Moisturizing zog
Thaum lub sij hawm ziab ntawm cov xim,HECtuaj yeem khaws cov dej noo hauv cov xim, yog li tsis txhob tawg thiab tev tawm los ntawm ziab sai heev. Cov cuab yeej moisturizing no yog ib qho tseem ceeb tshwj xeeb tshaj yog rau cov dej-raws li txheej txheej vim nws ncua lub sij hawm qhib ntawm txheej, muab lub sij hawm rau cov applicator ntxiv.
4. Txhim kho rheological zog
HEC tuaj yeem txhim kho cov khoom rheological ntawm cov txheej txheem kom lawv nthuav tawm cov viscosities sib txawv hauv cov txheej txheem sib txawv. Nyob rau hauv qis shear tej yam kev mob, HEC muab siab viscosity los tswj txheej stability, thaum nyob rau hauv siab shear tej yam kev mob, lub viscosity txo los pab txheej. Cov cuab yeej shear-thinning no ua rau cov xim muaj kua ntau dua thaum cov tshuaj tsuag thiab yob txheej, ua kom yooj yim rau kev ua tiav txawm tias txheej.
5. Dispersant
HEC kuj tseem ua raws li cov tshuaj dispersant los pab disperse pigments thiab fillers nyob rau hauv coatings. Los ntawm kev ua kom tawg ntawm cov xim thiab cov khoom ntim hauv cov txheej txheej, HEC tuaj yeem txhim kho cov xim sib xws thiab zais lub zog ntawm cov txheej. Qhov no yog qhov tseem ceeb rau kev tsim cov khoom siv xim zoo nkauj, tshwj xeeb tshaj yog nyob rau hauv cov xim pleev xim uas xav tau cov xim sib xws thiab siab gloss.
6. Cov yam ntxwv tiv thaiv ib puag ncig
Raws li kev tswj hwm ib puag ncig tau nce zuj zus, qhov kev thov rau cov txheej txheem dej txuas ntxiv nce ntxiv. Raws li ib tug natural polymer, HEC cov ntaub ntawv raw yog txuas dua tshiab thiab ib puag ncig tus phooj ywg, thiab nws muaj peev xwm txo tau qhov kev tso tawm ntawm volatile organic tebchaw (VOC) thaum siv coatings, ua raws li cov kev tiv thaiv ib puag ncig ntawm cov niaj hnub coatings kev lag luam.
7. Daim ntawv thov piv txwv
Nyob rau hauv kev siv,HECyog dav siv nyob rau hauv architectural coatings, industrial coatings, wood coatings, automotive coatings thiab lwm yam teb. Piv txwv li, nyob rau hauv architectural txheej, HEC tuaj yeem txhim kho qhov stain resistance thiab huab cua tsis kam ntawm txheej; Hauv cov txheej txheem ntoo, HEC tuaj yeem txhim kho qhov gloss thiab hnav tsis kam ntawm txheej zaj duab xis.
Daim ntawv thov ntawm HEC hauv kev lag luam coatings tag nrho qhia txog nws lub cev thiab tshuaj lom neeg zoo heev. Raws li cov thickener, zaj duab xis qub thiab dispersant, HEC tuaj yeem txhim kho kev ua tau zoo thiab cov txheej txheem zoo. Raws li kev lag luam coatings txuas ntxiv mus nrhiav kev tiv thaiv ib puag ncig thiab kev ua haujlwm siab, kev lag luam xav tau rau HEC xav tias yuav loj hlob ntxiv. Los ntawm kev tshawb fawb tob thiab daim ntawv thov kev tsim kho tshiab ntawm HEC, cov neeg tsim khoom txheej tuaj yeem tsim cov khoom sib tw thiab kev ua lag luam-adaptable.
Post lub sij hawm: Nov-07-2024