Kodi PVA Powder Amagwiritsidwa Ntchito Bwanji?

Polyvinyl alcohol (PVA) ufa, womwe umadziwikanso kuti PVA resin, ndi polima wosunthika womwe umapezeka m'mafakitale osiyanasiyana chifukwa cha mawonekedwe ake apadera.Nazi zina zomwe zimagwiritsidwa ntchito popanga PVA powder:

1. Ntchito Zomatira:

PVA ufa amagwiritsidwa ntchito kwambiri ngati chinthu chofunikira popanga zomatira ndi zomatira.Ikasungunuka m'madzi, PVA imapanga njira yomatira yomveka bwino, yopanda mtundu yokhala ndi mphamvu zomangirira komanso kumamatira kuzinthu zosiyanasiyana monga nkhuni, mapepala, nsalu, ndi zida zomangira.Zomatira za PVA zimagwiritsidwa ntchito kwambiri popanga matabwa, kuyika mapepala pamapepala, kumanga mabuku, ndi ntchito zina zomangira.

2. Kukula ndi Kumaliza Kwa nsalu:

Pamakampani opanga nsalu, ufa wa PVA umagwiritsidwa ntchito ngati chowongolera kuti apereke kuuma, mphamvu, komanso kusalala kwa ulusi ndi nsalu.Mapangidwe a PVA-based sizing amagwiritsidwa ntchito ku ulusi wokhotakhota asanawombe kuti azitha kuluka bwino, achepetse kusweka kwa ulusi, komanso kukulitsa mtundu wa nsalu.Kuphatikiza apo, PVA imatha kugwiritsidwa ntchito ngati chomaliza chowonjezera kukana makwinya, kuchira kwa crease, komanso kutulutsa nthaka ku nsalu zomalizidwa.

3. Kupaka Papepala ndi Kuyika:

Ufa wa PVA umagwiritsidwa ntchito m'makampani opanga mapepala popaka mapulogalamu kuti apititse patsogolo mawonekedwe azinthu zamapepala ndi mapepala.Zovala zopangidwa ndi PVA zimapereka kusindikizidwa bwino, kumatira kwa inki, ndi zotchinga, zomwe zimawapangitsa kukhala oyenera kusindikiza ndi kuyika kwapamwamba.Kuphatikiza apo, zokutira za PVA zimatha kulimbitsa mphamvu, kuuma, komanso kukana chinyezi kwazinthu zamapepala, kupititsa patsogolo kulimba kwawo komanso magwiridwe antchito.

4. Zida Zomangira:

Pantchito yomanga, ufa wa PVA umaphatikizidwa muzomangamanga zosiyanasiyana chifukwa cha zomatira ndi zolimbitsa.PVA-based dispersions amagwiritsidwa ntchito ngati zomangira zomangira muzinthu za simenti monga zomatira matailosi, zophatikiza zolumikizana, ndi pulasitala.PVA imathanso kuwonjezeredwa ku zosakaniza za simenti kuti zitheke kugwira ntchito, kumamatira, komanso kukana ming'alu mumatope ndi ntchito za konkire.

5. Mafilimu a Polima ndi Kuyika:

Ufa wa PVA umagwiritsidwa ntchito popanga mafilimu a polima ndi zida zopakira chifukwa cha mawonekedwe ake opanga mafilimu komanso magwiridwe antchito.Makanema a PVA amawonetsa kumveka bwino, kusinthasintha, komanso kukana chinyezi, kuwapangitsa kukhala oyenera kugwiritsa ntchito monga kuyika chakudya, mafilimu aulimi, ndi zokutira zapadera.Makanema opangidwa ndi PVA atha kugwiritsidwanso ntchito ngati zida zosungunulira m'madzi pazogulitsa zamtundu umodzi komanso zikwama zotsukira.

6. Zosamalira Munthu:

Ufa wa PVA umagwiritsidwa ntchito popanga chisamaliro chamunthu ndi zodzikongoletsera popanga filimu komanso kukhuthala.Mapangidwe opangidwa ndi PVA amapezeka muzinthu monga ma gels okometsera tsitsi, zopopera tsitsi, zopaka kumaso, ndi zonona zosamalira khungu.PVA imathandizira kukonza mawonekedwe, kukhazikika, ndi magwiridwe antchito azinthu izi, kukulitsa chidwi chawo cha ogula komanso kuchita bwino.

Pomaliza:

Pomaliza, PVA ufa ndi polima wosunthika wokhala ndi ntchito zosiyanasiyana m'mafakitale.Kuyambira zomatira ndi nsalu mpaka zokutira zamapepala ndi zida zomangira, PVA imagwira ntchito yofunika kwambiri pakupititsa patsogolo magwiridwe antchito, kulimba, ndi magwiridwe antchito.Zomwe zimamatira, luso lopanga mafilimu, komanso kuyanjana ndi zinthu zina zimapangitsa ufa wa PVA kukhala chowonjezera chamtengo wapatali m'njira zosiyanasiyana zopangira, zomwe zimathandizira pakupanga zinthu zatsopano komanso zapamwamba m'magawo osiyanasiyana amsika.