Chii chinonzi PU?

I. Nhanganyaya kuPU

PU, kana kuti polyurethane, chinhu chakagadzirwa nepurasitiki chinoumbwa zvakanyanya nepolyurethane. Dehwe rakagadzirwa nePU iganda rechokwadi rine hunhu hwakanaka uye rinogara kwenguva refu kupfuura ganda rechisikigo.

Dehwe rePU rakagadzirwa nemaoko rine mabasa akasiyana-siyana, anosanganisira kugadzira zvigaro zvemotokari, masofa, mabhegi emaoko, shangu, uye mbatya, pakati pezvimwe. Rinoyevedza, rinonyaradza, riri nyore kuchenesa uye kugadzirisa, uye rinoderedzawo kudiwa kwedehwe remhuka, nokudaro richizadzisa zvinodiwa nezvakatipoteredza zvinorambidza utsinye hwemhuka.

II. Kuongorora Zvinhu zvePU

1. Kuumbwa

Chinhu chikuru cheganda rePU rakagadzirwa nepurasitiki ipolyurethane, iyo inoumbwa nekubatana kwepolyether kana polyester neisocyanate. Pamusoro pezvo, ganda rePU rakagadzirwa nepurasitiki rinewo zvinhu zvinozadza, mapurasitiki, pigments, uye zvimwe zvinhu zvinobatsira.

2. Chitarisiko

Dehwe rePU rakagadzirwa rine magadzirirwo neruvara rwakakura, uye rinogona kutevedzera mapatani akasiyana-siyana edehwe akadai semakwati engwena, nyoka, uye hove kuti rikwanise kugutsa zvinodiwa nezvigadzirwa zvakasiyana.

3. Zvimiro zvemuviri

Dehwe rePU rakagadzirwa rine hunhu hwakanaka hwemuviri hwakadai sekusimba kwekusimba, kusakara, kusapinda mvura, uye kuchinjika. Riri nyorewo kuchenesa nekugadzirisa pane dehwe rechisikigo, zvichiita kuti rigare kwenguva refu.

4. Kukosha kweKushandisa

Kana tichienzanisa neganda rechisikigo, dehwe rePU rine zvakanakira zvakaita semutengo wakaderera, mitengo yakaderera yekugadzira, uye kusada dehwe remhuka, zvichiita kuti rive sarudzo inoshanda kuhupenyu hwemaguta emazuva ano.

Mukupedzisa, dehwe rePU rinogadzirwa nemaoko chinhu chemhando yepamusoro chinotsiva runako, mashandiro emhando yepamusoro, uye mitengo inonzwisisika, zvichiita kuti rive sarudzo inozivikanwa mumusika. Sezvo tekinoroji ichifambira mberi uye zvinodiwa pamusika zvichichinja, dehwe rePU rinogadzirwa nemaoko richashandiswa nenzira dzakasiyana-siyana mune ramangwana muzvikamu zvakaita semotokari, fenicha, mbatya, nemabhegi, kungotaura zvishomanana.