Chii chinonzi pu zvinyorwa?
Basic Tsanangudzo yePu Chinyorwa
Pu inomira purlyurethane, chinhu chePolymer chinoshandiswa zvakanyanya mumaindasitiri akasiyana-siyana. Polyurethane inogadzirwa nemakemikari maitiro pakati peiyo isocyanate uye polyol, uye ine huwandu hwakawanda hwepanyama uye hwemakemikari zvivakwa. Nekuti pu inogona kuve nezvivakwa zvayo zvakagadziriswa nekuchinja kuumbwa kwayo, inoshandiswa mune yakakura huwandu hwekushandisa, kubva kuPROPEREL kune zvekuvaka zvinhu.
Kugadziriswa uye Zvivakwa zveTu
Polyurethane anogona kuvezwa mune dzakasiyana siyana mafomu, kusanganisira shomid spams, mavara anochinjika, elastormers, majasi uye majasi. Figid Fums inowanzo shandiswa kune insulation uye mapaneru ekuvaka, nepo mapuranga anochinjika anoshandiswa zvakanyanya mune fenicha, zvigaro zvemotokari nemattres. Elastors, kune rumwe rutivi, ratidza rubber-kunge elasticity uye inoshandiswa kune sole soles, matairi uye zvichingodaro. Nekuda kwekukakavara kwayo kwakanaka, kupokana neabrasion, kuramba mafuta nekukwegura kupesana, pu zvinyorwa zvinoratidzira kuita kwakanaka mumashandisirwo emabasa akasiyana.
Application ye pu muindasitiri akasiyana siyana
Polyurethane ane huwandu hwakawanda hwekushandisa muminda dzakasiyana. Semuenzaniso, mune indasitiri yercurn, pu inowanzo shandiswa mukugadzirwa kweganda rekunyepedzera, iro rine chimiro chakafanana neganda asi zvakachipa uye nyore nyore kuchengetedza. Mune indasitiri yekuvaka, pu foam inoshandiswa seyakanyanya-mhando zvinhu zvekushandisa, inofarirwa neyakaderera macustral unitivity uye yakanaka unyoro kuramba. Muindasitiri emagetsi, pu zvekushandisa zvinoshandiswa kugadzira chigaro chechipfuyo uye zvemukati mitekinicha sezvazvinopa zvakanaka uye kusimba.
Kushamwaridzana kwehushamwari uye kusimba kwePU zvigadzirwa
Sezvo kuziva kwezvakatipoteredza kunowedzera, kusimbiswa kwe pu zvishandiso zvave kunetseka kukuru. Netsika, mamwe makemikari anokuvadza anogona kushandiswa mukugadzirwa kweTu, asi mumakore achangopfuura, iyo indasitiri yakagadzira yakawanda yemamiriro ezvinhu maitiro ekugadzira seyakagadzirirwa mvura purlyurene uye kushandiswa kwekushandiswa kwekuvandudzwa kwemidziyo. Aya matsva utsva haana kungoderedza kukanganisa pane zvakatipoteredza, asi zvakare kusimudzira kuchengeteka kwechigadzirwa uye kusimudzira.
Pfupiso
Chii chinonzi pu zvinyorwa? Icho chiitiko chakawanda, chakakwirira-chekuita polymer chakashandiswa zvakanyanya mune dzakasiyana siyana maindasitiri. Kunyangwe mune zvipfeko, kuvaka, automotives, kana kudzivirira kwezvakatipoteredza, pu inofarirwa neyakanakisa fsicochemical zvivakwa. Nekufambisira mberi kwehunyanzvi uye nekuvandudzwa kwezvinodiwa zvakatipoteredza, iyo application chiyero uye technical level yePu zvekushandisa zvicharamba zvichikura nekuvandudza.