Kusiyana pakati pa Polyurethane Yochokera Madzi ndi Polyurethane Yochokera Mafuta
Chophimba chosalowa madzi cha polyurethane chopangidwa ndi madzi ndi chinthu chosalowa madzi chomwe chimakhala cholimba kwambiri komanso cholimba, cholimba komanso chosalowa madzi chomwe chimamatira bwino komanso chosalowa madzi. Chimamatira bwino ku zinthu zopangidwa ndi simenti monga konkire, miyala ndi zitsulo. Chogulitsachi chili ndi mphamvu zokhazikika za mankhwala ndipo chimatha kupirira kuwala kwa dzuwa kwa nthawi yayitali. Chili ndi mawonekedwe a kusinthasintha kwabwino komanso kutalika kwakukulu.
Mawonekedwe a Ntchito Zamalonda
1. Maonekedwe: Chogulitsacho chiyenera kukhala chopanda ziphuphu mutachisakaniza ndipo chikhale chofanana.
2. Ili ndi mphamvu yokoka kwambiri, kutalika kwambiri, kusinthasintha bwino, magwiridwe antchito abwino kutentha kwambiri komanso kotsika, komanso imatha kusintha bwino kufupika, kusweka, ndi kusintha kwa substrate.
3. Kumatirira kwake ndi kwabwino, ndipo sikufunika chithandizo cha primer pa zinthu zosiyanasiyana zomwe zikugwirizana ndi zofunikira.
4. Chophimbacho chimauma ndikupanga filimu kenako chimakhala chosalowa madzi, chosagwira dzimbiri, chosagwira nkhungu, komanso chosatopa.
5. Kugwira ntchito kwake bwino pa chilengedwe, chifukwa kulibe benzene kapena zinthu zina za phula la malasha, ndipo palibe chosungunulira china chofunikira panthawi yomanga.
6. Ndi chinthu chimodzi chokha, chopakidwa mozizira chomwe ndi chosavuta kugwiritsa ntchito komanso kugwiritsa ntchito.
Kuchuluka kwa ntchito ya chinthucho
1. Yoyenera zipinda zapansi panthaka, malo oimika magalimoto apansi panthaka, sitima yapansi panthaka yotseguka komanso ngalande
2. Makhitchini, mabafa, masilabu apansi, makonde, madenga osawonekera.
3. Kuteteza madzi molunjika komanso kuletsa madzi kulowa m'makona, malo olumikizirana ndi zinthu zina zazing'ono, komanso kutseka malo olumikizirana madzi.
4. Kuthirira madzi m'madziwe osambira, akasupe opangidwa, matanki amadzi, ndi njira zothirira.
5. Kuteteza madzi m'malo oimika magalimoto ndi padenga la sikweya.
Chophimba chosalowa madzi cha polyurethane chopangidwa ndi mafuta ndi chophimba chosalowa madzi cha molekyulu chomwe chimauma ndikulimba pamwamba. Chimapangidwa ndi isocyanates ndi polyols ngati zipangizo zazikulu, ndi zinthu zosiyanasiyana zothandizira monga kusakaniza zomangira zobisika ndi mapulasitiki, ndipo chimapangidwa ndi njira yapadera yochepetsera madzi m'thupi komanso polymerization reaction. Chikagwiritsidwa ntchito, chimayikidwa pa substrate yosalowa madzi, ndipo filimu yolimba, yosinthasintha komanso yopanda madzi ya polyurethane imapangidwa pamwamba pa substrate ndi chemical reaction pakati pa gulu la -NCO la polyurethane prepolymer ndi chinyezi mumlengalenga.
Mawonekedwe a Ntchito Zamalonda
1. Maonekedwe: Chogulitsachi ndi cholimba mofanana popanda gel ndi zotupa.
2. Chigawo chimodzi, chokonzeka kugwiritsidwa ntchito pamalopo, chopangidwa mozizira, chosavuta kugwiritsa ntchito, komanso kufunikira kwa chinyezi cha substrate sikokhwima.
3. Kumatirira mwamphamvu: Kumatirira bwino ku konkire, matope, ziwiya zadothi, pulasitala, matabwa, ndi zina zotero, kusinthasintha bwino ku kufupika, kusweka ndi kusinthika kwa gawo lapansi.
4. Filimu yopanda misoko: Yomamatira bwino, palibe chifukwa chogwiritsa ntchito primer pa zinthu zosiyanasiyana zomwe zikugwirizana ndi zofunikira.
5. Mphamvu yayikulu yokoka ya filimuyi, kutalikitsa kwakukulu, kusinthasintha kwabwino, kusinthasintha kwabwino kuti isawonongeke komanso kusinthika kwa gawo lapansi.
6. Kukana mankhwala, kukana kutentha kochepa, kukana ukalamba, kukana nkhungu, kugwira ntchito bwino kosalowa madzi. Kugwiritsa ntchito zinthuzi
Chophimba chosalowa madzi cha polyurethane chopangidwa ndi mafuta chingagwiritsidwe ntchito pomanga nyumba zatsopano ndi zakale, madenga, zipinda zapansi, mabafa, maiwe osambira, mapulojekiti achitetezo cha anthu wamba, ndi zina zotero. Chingagwiritsidwenso ntchito pomanga mapaipi achitsulo osalowa madzi.
Kusiyana pakati pa polyurethane yopangidwa ndi mafuta ndi polyurethane yopangidwa ndi madzi:
Polyurethane yopangidwa ndi mafuta ili ndi zinthu zolimba kwambiri kuposa polyurethane yopangidwa ndi madzi, koma imapangidwa ndi isocyanate, polyether, ndi zinthu zina zothandizira monga mixed latent curing agent ndi plasticizers, zomwe zimapangidwa ndi njira zapadera pa kutentha kwakukulu, monga kuchotsa madzi ndi polymerization reaction. Ili ndi kuipitsidwa kwakukulu, poyerekeza ndi polyurethane yopangidwa ndi madzi, yomwe ndi chinthu chobiriwira komanso choteteza chilengedwe popanda kuipitsidwa. Ndi yoyenera kugwiritsidwa ntchito m'nyumba, monga kukhitchini ndi m'zimbudzi.
Nthawi yotumizira: Meyi-29-2024