Nekuenderera mberi kwekufambira mberi kwetekinoroji, solventless lamination inogamuchirwa nevakawanda vanochinjika pasuru mugadziri.
Kukurumidza, nyore, kushamwaridzana kwezvakatipoteredza, zvakanyanya kudhura-zvinobatsira zvakanakira solventless lamination.
Izvo zvakakosha kuti isu tizive iyo yakakosha kemikari yekuita panguva yekunyungudutsa isina kunyungudika yekugadzira misa yakawanda.
Zvikamu zviviriSolventless adhesiveyakagadzirwa ne polyurethane (PU), PU yakasanganiswa ne isocyanate(-NCO) inonyanya kunzi A component, uye polyol(-OH) inowanzonzi B component.Ruzivo rwekuita ndapota tarisa pazasi;
Mhedzisiro yekutanga iri pakati peA neB, iyo -NCO ine makemikari anoita ne -OH, panguva imwe chete, nekuda kwemvura zvakare ine -OH inoshanda boka, mvura ichava nemakemikari reaction neA chikamu chinoburitsa CO.2, Carbon dioxide.Uye polyurea.
Iye CO2 inogona kukonzera dambudziko rebubble uye polyurea inogona kukonzera anti-kupisa chisimbiso.Kunze kwekunge hunyoro hwakakwirira zvakakwana, mvura inopedza yakawandisa A chikamu.Mhedzisiro ndeyekuti kunamira hakugone kurapwa 100% uye simba rekubatanidza rinodzikira.
Muchidimbu, tinokurudzira kuti;
Kuchengetedzwa kwekunamatira kunofanirwa Kuchengetwa munzvimbo inotonhorera, yakaoma kure nekunyorova
Musangano unofanirwa kuchengetedza hunyoro huri pakati pe30% ~70%, uye kushandisa AC kudzora kukosha kwehunyoro.
Pamusoro pane maitiro emakemikari ekutanga pakati pezvinhu zviviri zvinonamira, asi mono-chikamu chinonamira chichasiyana zvachose, isu tichaunza mono component kemikari reaction mune ramangwana.
Nguva yekutumira: Zvita-07-2022