Ufa wa putty ndi chinthu chomangira chomwe chimagwiritsidwa ntchito kwambiri, makamaka chopangidwa ndi gypsum ndi zina zowonjezera. Chimagwiritsidwa ntchito kudzaza mipata, mipata ndi ming'alu m'makoma ndi padenga. Hydroxypropylmethylcellulose (HPMC) ndi chimodzi mwa zowonjezera zomwe zimagwiritsidwa ntchito kwambiri mu ufa wa putty. Uli ndi magwiridwe antchito abwino kwambiri osunga madzi komanso kumamatira bwino, zomwe zingathandize kuti putty igwire bwino ntchito komanso ikhale yolimba. Komabe, ubwino wa HPMC cellulose ukhoza kukhudzidwa ndi zinthu zosiyanasiyana, monga kugwedezeka ndi kusungunuka.
Kusakaniza ndi gawo lofunika kwambiri pakukonzekera ufa wa putty. Kumaonetsetsa kuti zosakaniza zonse zikugawidwa mofanana komanso kuti chinthu chomaliza chilibe ziphuphu ndi zina zolakwika. Komabe, kusakaniza kwambiri kungayambitse cellulose ya HPMC yoipa. Kusakaniza kwambiri kungayambitse cellulose kusweka, zomwe zimachepetsa kusunga madzi ndi mphamvu zake zomatira. Zotsatira zake, putty singamamatire bwino pakhoma ndipo ikhoza kusweka kapena kusweka mutagwiritsa ntchito.
Kuti tipewe vutoli, ndikofunikira kwambiri kutsatira malangizo a wopanga posakaniza ufa wa putty. Nthawi zambiri, malangizowo amatchula kuchuluka koyenera kwa madzi ndi nthawi yoti ayambe kugwedezeka. Mwachiyembekezo, putty iyenera kusunthidwa bwino kuti ikhale yosalala komanso yogwirizana popanda kuphwanya cellulose.
Kuchepetsa ndi chinthu china chofunikira chomwe chimakhudza ubwino wa HPMC cellulose mu ufa wa putty. Kuchepetsa kumatanthauza kuwonjezera madzi kapena zosungunulira zina ku putty kuti zikhale zosavuta kufalikira ndi kumanga. Komabe, kuwonjezera madzi ochulukirapo kumachepetsa cellulose ndikuchepetsa mphamvu zake zosungira madzi. Izi zingayambitse putty kuuma mwachangu kwambiri, zomwe zimayambitsa ming'alu ndi kufupika.
Kuti mupewe vutoli, ndikofunikira kutsatira malangizo a wopanga pochepetsa ufa wa putty. Nthawi zambiri, malangizowo amatchula kuchuluka koyenera kwa madzi kapena zosungunulira zomwe mungagwiritse ntchito komanso nthawi yosakaniza. Ndikofunikira kuwonjezera madzi pang'onopang'ono ndikusakaniza bwino musanawonjezere. Izi zidzaonetsetsa kuti cellulose yafalikira bwino mu putty ndikusunga mphamvu zake zosungira madzi.
Mwachidule, kusakaniza ndi kusakaniza kudzakhudza ubwino wa HPMC cellulose mu ufa wa putty. Ndikofunikira kutsatira malangizo a wopanga mosamala kuti atsimikizire kuti cellulose imasunga mphamvu zake zosungira madzi ndi kugwirizira. Mwa kuchita izi, munthu angapeze putty yapamwamba kwambiri yomwe ingapereke zotsatira zabwino kwambiri ndikutsimikizira kuti imamatira komanso kulimba kwa nthawi yayitali.
Nthawi yotumizira: Ogasiti-03-2023