Ufa wa polima wosungunuka (RDP) ndi copolymer wa vinyl acetate ndi ethylene wopangidwa kudzera mu njira yopopera. Ndi chinthu chofunikira kwambiri pa ntchito zosiyanasiyana zomanga, zomwe zimapangitsa kuti zinthu zopangidwa ndi simenti zikhale zolimba, zosinthasintha komanso zolimba. Kupanga ufa wa polima wosungunuka kumaphatikizapo masitepe angapo.
1. Kusankha zinthu zopangira:
Copolymer ya vinyl acetate-ethylene: Chinthu chachikulu cha RDP ndi copolymer ya vinyl acetate ndi ethylene. Copolymer iyi idasankhidwa chifukwa cha mphamvu zake zabwino zomatira komanso kuthekera kowonjezera kusinthasintha ndi kulimba kwa zinthu zolimbitsa simenti.
2. Kupoletsa kwa emulsion:
Njira yopangira imayamba ndi emulsion polymerization, momwe vinyl acetate ndi ethylene monomers zimapomeredwa polymer pamaso pa oyambitsa ndi okhazikika.
Njira yopangira emulsion polymerization imayendetsedwa mosamala kuti ipeze kulemera kwa mamolekyulu, kapangidwe kake, ndi kapangidwe ka copolymer komwe kamafunidwa.
3. Kuyankha ndi kupolima:
Vinyl acetate ndi ethylene monomers amachitapo kanthu pakakhala chothandizira kupanga copolymer.
Njira yopangira copolymerization ndiyofunikira kwambiri kuti ma polima akhale ndi zinthu zomwe akufuna, kuphatikizapo zinthu zabwino zopangira filimu komanso kufalikira kwa zinthu zina.
4. Kupopera kuuma:
Kenako emulsion imayikidwa mu njira yopopera youmitsira. Izi zimaphatikizapo kupopera emulsion m'chipinda chotentha, komwe madzi amasanduka nthunzi, ndikusiya tinthu tolimba ta polima yomwe imatha kusungunukanso.
Zinthu zoumitsira mankhwala, monga kutentha ndi mpweya, zimayendetsedwa mosamala kuti zitsimikizire kuti tinthu tating'onoting'ono ta ufa wosalala timatuluka bwino.
5. Chithandizo cha pamwamba:
Mankhwala ochizira pamwamba nthawi zambiri amagwiritsidwa ntchito kuti awonjezere kukhazikika kwa malo osungiramo zinthu komanso kufalikira kwa ufa wa polima.
Zowonjezera za hydrophobic kapena zoteteza colloids nthawi zambiri zimagwiritsidwa ntchito pochiza pamwamba kuti tinthu tisamakumane komanso kuwonjezera kufalikira kwa ufa m'madzi.
6. Kuwongolera khalidwe:
Njira zowongolera khalidwe zimatsatiridwa nthawi yonse yopanga. Zinthu monga kugawa kukula kwa tinthu tating'onoting'ono, kuchuluka kwa zinthu, kuchuluka kwa zinthu zotsalira za monomer ndi kutentha kwa kusintha kwa galasi zimayang'aniridwa kuti zitsimikizire kuti zinthuzo zikugwirizana.
7. Kupaka:
Ufa womaliza wa polima womwe umatha kusungunuka umayikidwa m'zidebe zomwe sizimanyowa kuti madzi asalowe, zomwe zingasokoneze magwiridwe ake ntchito.
Kugwiritsa Ntchito Ufa wa Polima Wosasinthika:
RDP imagwiritsidwa ntchito m'njira zosiyanasiyana zomangira kuphatikizapo zomatira za matailosi, zosakaniza zokha, makina omalizitsa kutenthetsa kunja (EIFS) ndi zomatira za simenti.
Ufawu umawonjezera mphamvu monga kukana madzi, kusinthasintha komanso kumamatira, zomwe zimathandiza kukonza magwiridwe antchito onse komanso kulimba kwa zipangizo zomangirazi.
Pomaliza:
Ufa wa polima wosungunukanso ndi chinthu chogwiritsidwa ntchito m'njira zosiyanasiyana chomwe chimagwiritsidwa ntchito kwambiri mumakampani omanga. Kupanga kwake kumaphatikizapo kusankha mosamala zinthu zopangira, kupopera kwa emulsion, kuumitsa kwa spray, kukonza pamwamba ndi njira zowongolera bwino khalidwe.
Kupanga ufa wa polima wosungunuka ndi njira yovuta yomwe imafuna kulondola komanso kusamala kwambiri kuti mupeze chinthu chapamwamba chokhala ndi makhalidwe ofunikira pa ntchito yomanga.
Nthawi yotumizira: Disembala 18-2023