Ma cellulose ether, omwe amadziwikanso kuti methylcellulose/hydroxypropylmethylcellulose (HPMC/MHEC), ndi polima wosungunuka m'madzi womwe umagwiritsidwa ntchito kwambiri pomanga.Ili ndi zinthu zingapo zofunika zomwe zimapangitsa kuti ikhale yofunika kwambiri popanga matope ndi simenti.Makhalidwe apadera a cellulose ethers amaphatikiza kusungirako madzi, kumamatira bwino, komanso kuthekera kochita ngati zokhuthala.
Ma cellulose ethers amawonjezera mphamvu yomangira matope popereka kusinthasintha ndi kukhazikika kwa kusakaniza kwamatope.Zotsatira zake, zinthuzo zimakhala zosavuta kugwira ntchito ndipo mapeto ake amakhala olimba.Nkhaniyi iwona momwe ma cellulose ethers (HPMC/MHEC) amakhudzira mphamvu zama bond zamatope.
Mphamvu ya cellulose ether pamatope
Ma cellulose ethers ndi zinthu zofunika kwambiri pakupanga zinthu zambiri, kuphatikiza matope ndi simenti.Ikagwiritsidwa ntchito mumatope, cellulose ether imakhala ngati chomangira, chomwe chimathandiza kumangirira kusakaniza pamodzi ndi kupititsa patsogolo kugwira ntchito kwa zinthuzo.Zomwe zimasunga madzi za cellulose ethers zimapereka mikhalidwe yabwino yochiritsa bwino matope ndi simenti, pomwe kumamatira kwabwino kumathandiza kupanga mgwirizano wamphamvu pakati pa zigawo zosiyanasiyana.
Tondo ndi chinthu chofunikira chomangira chomwe chimagwiritsidwa ntchito kumamatira njerwa kapena midadada.Ubwino wa mgwirizano umakhudza mphamvu ndi kukhazikika kwa kapangidwe kake.Kuphatikiza apo, kulimba kwa ma bond ndi chinthu chofunikira kuwonetsetsa kuti nyumbayo imatha kupirira mikhalidwe yonse yomwe imatsatiridwa.Mphamvu ya mgwirizano wa matope ndi yofunika kwambiri chifukwa kamangidwe kamene kamakhala pansi pa zovuta zilizonse kapena katundu zimadalira kwambiri mgwirizano wa matope.Ngati mphamvu zomangira sizikwanira, kapangidwe kake kamakhala ndi zovuta zazikulu monga kusweka kapena kulephera, zomwe zimapangitsa ngozi zosayembekezereka, kuchuluka kwa ndalama zosamalira komanso kuopsa kwa chitetezo.
Njira yamachitidwe a cellulose ethers
Cellulose ether ndi polima wosungunuka m'madzi womwe umagwiritsidwa ntchito kukonza zinthu zamatope.The kanthu limagwirira wa mapadi etero mu matope ndi kubalalitsidwa kwa zina, amene makamaka oyenera ma polima sungunuka madzi, ndipo timapitiriza mphamvu ya zipangizo ndi kuchepetsa mavuto padziko zinthu.Izi zikutanthauza kuti cellulose ether ikawonjezeredwa ku matope, imamwazikana mosakanikirana mosakanikirana, kulepheretsa kupanga zotupa zomwe zingayambitse mawanga ofooka mu mgwirizano wamatope.
Ma cellulose ether amagwiranso ntchito ngati thickening agent mumatope, kupanga chisakanizo chowoneka bwino chomwe chimalola kuti amamatire molimba ku njerwa kapena kutsekereza komwe kukugwiritsidwa ntchito.Kuphatikiza apo, imathandizira kuchuluka kwa mpweya komanso kumapangitsa kuti matope azigwira ntchito bwino komanso kuti azigwiritsa ntchito mosavuta.Ma cellulose ethers omwe amawonjezeredwa mumatope amachepetsa kuchuluka kwa madzi omwe amasungunuka, zomwe zimapangitsa kuti matope apangidwe mosavuta ndikugwirizanitsa zigawozo pamodzi mwamphamvu kwambiri.
Ubwino wa cellulose ether pamatope
Kuphatikizika kwa ma cellulose ethers (HPMC/MHEC) kumatope kuli ndi maubwino angapo kuphatikiza kulimba kwa ma bond.Mphamvu zomangira zapamwamba zimawonjezera kukhazikika kwa nthawi yayitali, kupewa kukonzanso kokwera mtengo.
Ma cellulose ether amathandizanso kuti matope azigwira bwino ntchito, zomwe zimapangitsa kuti zikhale zosavuta kupanga komanso kuchepetsa nthawi yofunikira pakugwiritsa ntchito movutikira.Kuchita bwino kumeneku kumathandizira kukulitsa liwiro komanso kuchita bwino, potero kumawonjezera zokolola pantchito yomanga.
Ma cellulose ether amathanso kupititsa patsogolo ntchito yosunga madzi mumatope ndikuwonetsetsa kuti nthawi yokwanira yochiritsira bwino.Izi zimakulitsa kugwirizana kwa zipangizo zomwe zimagwiritsidwa ntchito pomanga, zomwe zimapangitsa kuti zikhale zolimba kwambiri.
Ma cellulose ether additive mortars ndi osavuta kuyeretsa, ndipo kuchotsa zinthu zowonjezera panyumba yomalizidwa sikovuta.Kumamatira kochulukira kwa matope kuzinthu zomangira kumatanthauza kuchepa pang'ono chifukwa kusakaniza sikungasunthike kapena kumasuka pamapangidwewo panthawi yolumikizana.
Pomaliza
Kuphatikizika kwa ma cellulose ethers (HPMC/MHEC) ku matope kumagwira ntchito yofunika kwambiri pakuwongolera mphamvu zomangira zomangira zomangira.Ma cellulose ethers amasunga madzi, amapangitsa kuti matope azigwira ntchito bwino, komanso amalola kuti madzi aziyenda pang'onopang'ono kuti agwirizane bwino.Kuwonjezeka kwamphamvu kwa ma bond kumatsimikizira kukhazikika kwa kapangidwe kake, kuchepetsa zovuta zokonzekera zosayembekezereka, kukonza chitetezo ndi kuchepetsa ndalama zomanga.Poganizira zabwino zonsezi, zikuwonekeratu kuti kugwiritsa ntchito ma cellulose ethers kuyenera kuvomerezedwa kwambiri pantchito yomanga kuti apange ntchito zomanga zabwino komanso zolimba.
Nthawi yotumiza: Sep-01-2023