Hydroxypropylmethylcellulose (hpmc) ikupezeka kutchuka m'makampani omanga chifukwa cha malo ake osungira. HPMC ndi ether yosakhala inic, yosungunuka yamadzi, yomwe imagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana. Pomanga, nthawi zambiri imagwiritsidwa ntchito ngati thiccener, womenyera ndi wogulitsa madzi mu zinthu za simenti ndi matope. Chisangalalo cha HPMC chimakhudzanso zovuta pamadzi, zomwe tisanthule m'nkhaniyi.
Choyamba, ndikofunikira kumvetsetsa zomwe HPMC ili ndi momwe imagwirira ntchito. HPMC imachokera ku cellulose, polymer yachilengedwe yochokera ku mitengo ndi ulusi wobzala. HPMC imapangidwa ndi kusinthika kwa cellulose yosintha ma propylene oxide ndi methyl chloride, omwe amawonjezera hydroxpyupyl ndi magulu a ma cellulose molekyulu. Zosinthazi zimapangitsa kuti HPMC isungunuke m'madzi ndikupatsa mawonekedwe ena monga kukula, emulsization ndi kusungidwa kwamadzi.
Mphamvu zosunga za HPMC ndizofunikira kwambiri m'makampani omanga, pomwe kuwongolera chinyezi ndiko kukangana. HPMC ikawonjezeredwa ku zinthu kapena matope, imapanga filimu kuzungulira tinthu tating'onoting'ono, zimachepetsa kulowa kwamadzi. Kanemayo amathandizanso kuchepetsa madzi osinthika ku kusakaniza, ndikupatsa simenti nthawi ina kuti ikhale ndi hydrate. Zotsatira zake, cemityay zinthu ndi matombi zimakhalabe zonyowa kwa nthawi yayitali, kuwaloleza kuchiritsa bwino ndikukwaniritsa mphamvu zambiri.
Chisangalalo cha HPMC chimagwira ntchito yofunika kwambiri m'mayendedwe ake. Nthawi zambiri, olankhula bwino kwambiri a HPMC, abwinobwino omwe amasunga madzi. Izi ndichifukwa choti tinthu tating'onoting'ono timakhala ndi malo akuluakulu, omwe amawalola kuti apange filimu yozungulira kuzungulira tinthu tambiri. Kanemayo amathandizira kuti pakhale chotchinga pakati pa simenti ndi madzi, kuchepetsera kulowa m'madzi mu kusakaniza. Zotsatira zake, osakaniza amakhala onyowa nthawi yayitali, kupereka nthawi yochulukirapo kwa simenti ku hydrate ndi matope kuti achiritse.
Koma ndikofunikira kudziwa kuti kukongola kwa HPMC sikuyenera kungoganiza posankha njira yosungira madzi. Zina mwa zinthu monga mtundu wa simenti, kuchuluka kwa madzi, kutentha ndi chinyezi zimakhudzanso kuchuluka kwa madzi a HPMC. Chifukwa chake, ndikofunikira kusankha malonda a HPMC yoyenera kugwiritsidwa ntchito ndi malo ena.
Mwachidule, pali zabwino zambiri zogwiritsa ntchito HPMC ngati wothandizira wamadzi mu cememit tork ndi matope. Katundu wake wosunga madzi amakonzekereratu kuti kusakaniza kumakhala konyowa kumanyowa chifukwa cha simenti ku hydrate ndi matope kuti achiritse. Chisangalalo cha HPMC ndichinthu chofunikira chomwe chikukhudza kuchuluka kwake chosungirako madzi, ma tinthu tomwe timachita bwino. Komabe, zina monga mtundu wa simenti, kuchuluka kwa madzi, kutentha ndi chinyezi kuyeneranso kuganiziridwanso posankha chinthu cha HPMC. Ponseponse, kugwiritsa ntchito HPMC ndi njira yabwino kwambiri yochitira magwiridwe antchito ndi kutaya mtima kwa zinthu ndi matope pomanga.
Post Nthawi: Aug-16-2023