Kodi PU ndi chiyani?

I. Chiyambi cha PU

PU, kapena polyurethane, ndi chinthu chopangidwa ndi polyurethane. Chikopa chopangidwa ndi PU ndi chinthu chopangidwa ndi chikopa chenicheni chomwe chili ndi mawonekedwe abwino komanso cholimba kuposa chikopa chachilengedwe.

Chikopa chopangidwa ndi PU chili ndi ntchito zosiyanasiyana, kuphatikizapo kupanga mipando yamagalimoto, masofa, zikwama zam'manja, nsapato, ndi zovala, pakati pa zina. Ndi chokongola, chomasuka, chosavuta kuyeretsa ndi kusamalira, komanso chimachepetsa kufunikira kwa chikopa cha nyama, motero chikukwaniritsa zofunikira zachilengedwe zomwe zimaletsa nkhanza za nyama.

II. Kusanthula Zinthu za PU

1. Kapangidwe kake

Chikopa chopangidwa ndi PU ndi polyurethane, chomwe chimapangidwa ndi kuyanjana kwa polyether kapena polyester ndi isocyanate. Kuphatikiza apo, chikopa chopangidwa ndi PU chilinso ndi zinthu zodzaza, mapulasitiki, utoto, ndi zinthu zina zothandizira.

2. Mawonekedwe

Chikopa chopangidwa ndi PU chili ndi kapangidwe ndi mtundu wochuluka, ndipo chimatha kutsanzira mitundu yosiyanasiyana ya zikopa monga ng'ona, njoka, ndi mamba a nsomba kuti zikwaniritse zosowa za zinthu zosiyanasiyana.

3. Katundu Wathupi

Chikopa chopangidwa ndi PU chili ndi zinthu zabwino kwambiri monga mphamvu yokoka, kutopa, kukana madzi, komanso kusinthasintha. N'zosavuta kuyeretsa ndi kusamalira kuposa chikopa chachilengedwe, zomwe zimapangitsa kuti chikhale cholimba.

4. Mtengo Wogwiritsira Ntchito

Poyerekeza ndi chikopa chachilengedwe, chikopa chopangidwa ndi PU chili ndi zabwino zina monga mtengo wotsika, ndalama zochepa zopangira, komanso osafunikira chikopa cha nyama, zomwe zimapangitsa kuti chikhale chisankho choyenera m'mizinda yamakono.

Pomaliza, chikopa chopangidwa ndi PU ndi chinthu cholowa m'malo mwa zinthu zabwino kwambiri chomwe chimakopa kukongola, magwiridwe antchito abwino, komanso mitengo yabwino, zomwe zimapangitsa kuti chikhale chotchuka pamsika. Pamene ukadaulo ukupita patsogolo komanso zosowa za msika zikusintha, chikopa chopangidwa ndi PU chidzakhala ndi ntchito zambiri mtsogolo m'magawo monga magalimoto, mipando, zovala, ndi matumba, kungotchulapo zochepa.