Cellulose HPMC, los yog hydroxypropyl methylcellulose, yog siv dav hauv kev lag luam coatings. Nws yog non-toxic, zoo heev thiab ntau yam khoom. HPMC yog muab los ntawm cov nroj tsuag fibers thiab yooj yim soluble hauv dej. Nws muaj ntau yam kev siv hauv tsev cov ntaub ntawv, txheej formulations, adhesives thiab lwm yam industries.
Cellulose HPMC tuaj nyob rau hauv ob hom: instant thiab tsis tam sim. Txhua tus muaj nws cov khoom tshwj xeeb thiab tsim nyog rau cov ntawv thov tshwj xeeb. Hauv tsab xov xwm no, peb yuav tshawb txog qhov sib txawv ntawm instant cellulose HPMC thiab non-instant cellulose HPMC rau txheej.
Instant Cellulose HPMC
Instant Cellulose HPMC yog hom HPMC uas yog soluble hauv dej txias. Nws muaj lub sijhawm tawg sai, uas txhais tau tias nws tuaj yeem tawg hauv dej hauv vib nas this. Instant HPMC feem ntau yog siv rau hauv cov coatings uas yuav tsum tau ceev ceev, xws li ncua kev kawm ntawv, emulsions thiab siab viscosity daim ntaub ntawv.
Ib qho ntawm qhov zoo tshaj plaws ntawm instant cellulose HPMC yog nws zoo heev dispersibility. Nws dissolves nyob rau hauv dej tsis muaj lumps los yog lumps. Cov yam ntxwv no ua rau nws zoo tagnrho rau kev siv hauv cov khoom siv siab siab vim nws ua kom cov viscosity zoo ib yam thoob plaws hauv pawg.
Instant cellulose HPMC kuj muaj txiaj ntsig zoo, muab cov khoom ua kom tuab zoo heev ntawm qhov tsis tshua muaj siab. Nws tsis cuam tshuam rau cov xim los yog gloss ntawm cov xim, ua rau nws haum rau ntau formulations. Tsis tas li ntawd, HPMC tam sim no tiv taus enzymes, acids, thiab alkalis, uas txhais tau hais tias nws muaj tshuaj lom neeg ruaj khov.
Tsis-instant cellulose HPMC
Ntawm qhov tod tes, tsis yog-cellulose HPMC tsis soluble hauv dej txias thiab yuav tsum tau cua sov kom yaj. Nws yuav siv sij hawm ntev dua kom yaj dua li cov cellulose HPMC tam sim ntawd thiab yuav tsum tau kub siab dua kom tawg tag nrho. Tsis yog HPMCs tam sim no feem ntau yog siv rau hauv cov txheej uas xav tau qeeb thiab maj mam thickening.
Ib qho ntawm cov txiaj ntsig tseem ceeb ntawm HPMC tsis muaj cellulose yog nws lub peev xwm los muab cov nyhuv maj mam thickening lub sijhawm. Nws tsis ua rau muaj kev hloov pauv sai sai ntawm viscosity uas tuaj yeem cuam tshuam rau tag nrho cov xim zoo. Tsis yog HPMC tam sim no muaj cov khoom zoo rheological thiab yog qhov zoo tagnrho rau siv hauv cov txheej txheem uas yuav tsum tau muaj kev tswj xyuas qhov ntws thiab theem ntawm cov khoom.
Non-instant cellulose HPMC kuj muaj cov khoom ua yeeb yaj kiab zoo heev, uas txhais tau hais tias nws pab txhim kho cov kav ntev ntawm cov txheej. Nws tuaj yeem tiv taus huab cua, UV hluav taws xob thiab lwm yam khoom siv ib puag ncig, ua kom cov txheej txheem tseem nyob hauv lub sijhawm. Tsis tas li ntawd, HPMC tsis yog tam sim no muaj qhov adhesion zoo, uas tiv thaiv cov txheej los ntawm tev lossis chipping.
HPMC ob qho tib si tam sim thiab tsis yog tam sim cellulose muaj cov khoom tshwj xeeb thiab cov txiaj ntsig uas ua rau lawv tsim nyog rau cov ntawv thov tshwj xeeb hauv kev lag luam coatings. Instant cellulosic HPMC yog qhov zoo tagnrho rau cov txheej txheej uas yuav tsum tau ua kom nrawm nrawm, thaum tsis yog tam sim HPMC yog qhov zoo tshaj plaws rau cov ntawv thov uas xav tau qeeb thiab maj mam thickening.
Txawm hais tias hom cellulose HPMC siv, qhov zoo ntawm cov khoom siv ntau yam no yog qhov tsis lees paub. Nws ntxiv tus nqi rau coatings los ntawm kev txhim kho thickening, leveling, adhesion thiab durability. Ntxiv rau, nws tsis muaj tshuaj lom thiab ib puag ncig tus phooj ywg, ua rau nws yog qhov kev xaiv zoo tshaj plaws rau cov qauv tsim los txo lawv cov kev cuam tshuam ib puag ncig.
Cellulose HPMC yog cov khoom siv tau zoo thiab muaj ntau yam uas tuaj yeem nqa cov txiaj ntsig tseem ceeb rau cov txheej txheem. Nws siv yog qhov tseem ceeb rau kev txhim kho qhov zoo ntawm cov xim, uas thaum kawg cuam tshuam rau tag nrho cov neeg siv kawg.
Post lub sij hawm: Aug-09-2023