Ma cellulose, omwe amadziwikanso kuti hydroxypropylmethylcellulose (HPMC), ndi gawo lofunikira la gypsum. Gypsum ndi nyumba yomwe imagwiritsidwa ntchito kwambiri pakhoma komanso padenga. Amapereka malo osalala, okonzeka kupenta kapena kukongoletsa. Cellulose ndi chinthu chopanda poizoni, chosawononga chilengedwe komanso chosavulaza chomwe chimagwiritsidwa ntchito popanga gypsum.
Ma cellulose amagwiritsidwa ntchito popanga gypsum kuti apititse patsogolo zinthu za gypsum. Imakhala ngati zomatira, kugwirizira pulasitala pamodzi ndikuletsa kuti isang'ambe kapena kufota ikauma. Pogwiritsa ntchito ma cellulose mu chisakanizo cha stucco, mutha kuwonjezera mphamvu ndi kulimba kwa stuko, ndikupangitsa kuti ikhale yayitali komanso kufunikira kosamalira pang'ono.
HPMC ndi polima wachilengedwe wopangidwa kuchokera ku mapadi, wopangidwa ndi unyolo wautali wa shuga, wosinthidwa ndikuchitapo kanthu ndi propylene oxide ndi methyl chloride. Zinthu zake ndi biodegradable ndipo si poizoni, zinthu zachilengedwe wochezeka. Kupatula apo, HPMC ndi madzi sungunuka, kutanthauza kuti mosavuta kusakaniza mu gypsum mix pokonzekera izo.
Kuphatikizika kwa cellulose ku chisakanizo cha stucco kumathandizanso kukonza zomangira za stucco. Ma cellulose ndi omwe amapanga mgwirizano pakati pa stucco ndi pansi. Izi zimathandiza pulasitala kumamatira bwino pamwamba ndikuletsa kulekanitsa kapena kusweka.
Ubwino wina wowonjezera ma cellulose kusakaniza kwa gypsum ndikuti umathandizira kukonza magwiridwe antchito a gypsum. Mamolekyu a cellulose amagwira ntchito ngati mafuta, zomwe zimapangitsa kuti pulasitala ifalikire mosavuta. Izi zimapangitsa kuti zikhale zosavuta kuyika pulasitala pakhoma kapena padenga, kupereka malo osalala.
Ma cellulose amathanso kusintha mawonekedwe onse a pulasitala. Powonjezera mphamvu ndi kugwira ntchito kwa stucco, zimathandiza kuonetsetsa kuti zosalala, zomaliza zopanda ming'alu ndi zofooka za pamwamba. Izi zimapangitsa pulasitala kukhala yowoneka bwino komanso yosavuta kujambula kapena kukongoletsa.
Kuphatikiza pa zabwino zomwe zalembedwa pamwambapa, cellulose imathandiziranso kukana moto kwa stuko. Zikawonjezeredwa ku gypsum mix, zingathandize kuchepetsa kufalikira kwa moto popanga chotchinga pakati pa moto ndi khoma kapena padenga.
Kugwiritsa ntchito mapadi pakupanga gypsum kulinso ndi zabwino zingapo zachilengedwe. Zomwe zili ndi biodegradable komanso zopanda poizoni, zopanda vuto kwa chilengedwe komanso thanzi la anthu. Kuphatikiza apo, popeza cellulose imawonjezera mphamvu ndi kulimba kwa pulasitala, imathandizira kuchepetsa kukonzanso komwe kumafunikira pakapita nthawi. Izi zimachepetsa kuchuluka kwa zinyalala zomwe zimapangidwa komanso zimathandiza kusunga zinthu.
Cellulose ndi gawo lofunikira la gypsum. Kuphatikiza pa chisakanizo cha stucco kumathandizira kulimbitsa mphamvu, kulimba, kugwira ntchito komanso mawonekedwe a stucco. Kuphatikiza apo, imapereka maubwino angapo achilengedwe omwe amathandizira kuchepetsa kufunikira kosamalira nthawi yayitali. Kugwiritsa ntchito cellulose mu gypsum ndi gawo lofunikira popanga zida zomangira zokhazikika komanso zachilengedwe.
Nthawi yotumiza: Aug-10-2023