Kuyesedwa kwa magiredi osankhidwa a HPMC mumapangidwe amatope owuma

dziwitsani

Dry-mix mortar ndi chisakanizo cha simenti, mchenga, ndi zina zomwe zimagwiritsidwa ntchito kumata matailosi, kudzaza mipata, ndi malo osalala. Kuphatikiza koyenera kwa zosakaniza ndikofunikira kuti mupange matope ochita bwino kwambiri okhala ndi mgwirizano wabwino kwambiri, mphamvu ndi kulimba. Chifukwa chake opanga amagwiritsa ntchito hydroxypropyl methylcellulose (HPMC) ngati chinthu chofunikira pakupanga matope owuma. HPMC ndi polima yopangidwa ndi cellulose yomwe imasungunuka m'madzi ndipo imagwiritsidwa ntchito kwambiri pantchito yomanga chifukwa cha mawonekedwe ake apadera a rheological.

HPMC kalasi mayeso

Pali mitundu ingapo yamagiredi a HPMC pamsika, iliyonse ili ndi katundu wapadera komanso kuthekera komwe kumakhudza magwiridwe antchito azinthu zomaliza. Chifukwa chake, opanga matope osakaniza owuma amayenera kuyesa magiredi osiyanasiyana a HPMC kuti asankhe yomwe ili yoyenera kwambiri pamapangidwe awo.

Zotsatirazi ndi zikhumbo zazikulu zomwe opanga amawunika poyesa magiredi a HPMC mumapangidwe amatope owuma:

1. Kusunga madzi

Kusunga madzi ndikutha kwa HPMC kusunga madzi ndikuletsa kutuluka kwa nthunzi panthawi yochiritsa. Kusunga kuchuluka kwa hydration mumatope anu ndikuwonetsetsa kuti akuchira moyenera ndikofunikira, makamaka m'malo otentha, owuma. Kuchuluka kwa madzi osungira kumabweretsa nthawi yayitali yochiritsa, zomwe zimabweretsa kuchepa kwa zokolola. Chifukwa chake opanga amafuna kulinganiza bwino pakati pa kusunga madzi ndikuchiritsa nthawi posankha magiredi a HPMC.

2. Kukhuthala mphamvu

The thickening mphamvu ya HPMC ndi muyeso wa luso lake kuonjezera mamasukidwe akayendedwe a matope. Zomangamanga zapamwamba zimakhala ndi mgwirizano wabwinoko komanso zomangira, zomwe zimawapangitsa kukhala abwino pantchito yomanga. Komabe, kunenepa kwambiri kumatha kupangitsa kuti chinthucho chiwonjezeke, zomwe zimapangitsa kusakanikirana ndi kufalikira kukhala kovuta. Chifukwa chake opanga amayenera kuyesa magiredi a HPMC kwambiri kuti awonetsetse kuti ali ndi mphamvu zokulirapo komanso kukhuthala koyenera komanso kugwiritsa ntchito mosavuta.

3. Ikani nthawi

Kuyika nthawi ya matope osakaniza owuma ndi chinthu chofunika kwambiri chomwe chimakhudza zokolola komanso ubwino wa mankhwala omaliza. Kukhazikitsa nthawi yayitali kumabweretsa kutsika kwa zokolola, kukwera mtengo kwa ogwira ntchito, ndikuchepetsa kukhutira kwamakasitomala. Chifukwa chake, opanga ayenera kusankha kalasi ya HPMC yomwe ingapereke nthawi yabwino yokhazikitsira ndikuwonetsetsa kuti mankhwalawo achira bwino.

4. Kupanga mafilimu

Katundu wopanga mafilimu ndi kuthekera kwa HPMC kupanga wosanjikiza woteteza pamwamba pa matope ochiritsidwa. Chigawochi chimapereka chitetezo kuzinthu zosiyanasiyana zachilengedwe monga mphepo, mvula ndi chinyezi ndipo zimathandiza kukulitsa moyo wa chinthu chomaliza. Chifukwa chake opanga amafuna kusankha magiredi a HPMC omwe amapereka mawonekedwe apamwamba a kanema okhala ndi zotsatira zochepa monga kuzimiririka, kusinthika kwamtundu kapena kusenda.

5. Kugwirizana ndi zomatira zina

Dry-mix mortars amagwiritsa ntchito zomangira zophatikizira kuti akwaniritse ntchito yabwino. Komabe, si zomatira zonse zomwe zimagwirizana ndi HPMC, zomwe zingayambitse kuchepa kwa mgwirizano, kumamatira ndi mphamvu zomangira. Chifukwa chake, opanga amayesa magiredi a HPMC kwambiri kuti adziwe ngati akugwirizana ndi zomatira zina ndikusankha zomwe zimapereka zotsatira zabwino.

HPMC ndi chinthu chofunikira kwambiri pakupanga matope osakaniza owuma, zomwe zimakhudza magwiridwe ake komanso kulimba kwake. Chifukwa chake, opanga amayenera kuwunika magiredi osiyanasiyana a HPMC kuti asankhe imodzi yomwe imapereka madzi abwino kwambiri osungira, mphamvu yakuchulukira, nthawi yoyika, kupanga filimu, komanso kugwirizana ndi zomatira zina. Kuyesa magiredi a HPMC ndi gawo lofunika kwambiri popanga matope osakaniza owuma omwe amagwira ntchito kwanthawi yayitali, kukhutira kwamakasitomala komanso kupindula kwakukulu. Ndi kuphatikiza koyenera kwa magiredi a HPMC ndi zosakaniza, matope osakaniza owuma amatha kupereka mphamvu zabwino kwambiri zomangira, kulimba komanso kugwiritsa ntchito mosavuta, kuwapanga kukhala abwino pantchito zosiyanasiyana zomanga.