PU yog dab tsi?

I. Kev Taw Qhia Txog PU

PU, lossis polyurethane, yog cov khoom siv hluavtaws uas muaj polyurethane feem ntau. PU synthetic tawv yog cov tawv tiag tiag uas muaj cov khoom zoo dua thiab ruaj khov dua li tawv ntuj.

Cov tawv tsiaj PU muaj ntau yam kev siv, suav nrog kev tsim cov rooj zaum hauv tsheb, rooj zaum, hnab tes, khau, thiab khaub ncaws, thiab lwm yam. Nws zoo nkauj, xis nyob, yooj yim ntxuav thiab tswj, thiab tseem txo qhov kev xav tau tawv tsiaj, yog li ua tau raws li cov kev cai ib puag ncig uas txwv tsis pub ua phem rau tsiaj.

II. Kev Tshuaj Xyuas Cov Khoom Siv PU

1. Kev Sau Ua Ke

Cov khoom tseem ceeb ntawm PU tawv hluavtaws yog polyurethane, uas yog tsim los ntawm kev sib cuam tshuam ntawm polyether lossis polyester nrog isocyanate. Tsis tas li ntawd, PU tawv hluavtaws kuj muaj cov khoom sau, cov yas ua kom zoo nkauj, cov xim, thiab cov neeg sawv cev pabcuam.

2. Qhov tsos

Cov tawv nqaij PU hluavtaws muaj ntau yam qauv thiab xim, thiab tuaj yeem ua raws li ntau yam qauv tawv xws li khej, nab, thiab nplai ntses kom tau raws li qhov xav tau ntawm cov khoom sib txawv.

3. Cov Khoom Siv Lub Cev

Cov tawv PU ua los ntawm cov khoom siv dag zog zoo heev xws li lub zog tensile, tiv taus kev hnav, tiv taus dej, thiab yooj ywm. Nws kuj yooj yim dua los ntxuav thiab saib xyuas dua li cov tawv ntuj, ua rau nws ruaj khov dua.

4. Tus nqi ntawm daim ntawv thov

Piv rau cov tawv ntuj, PU tawv hluavtaws muaj qee qhov zoo xws li tus nqi qis dua, tus nqi tsim khoom qis dua, thiab tsis tas yuav muaj tawv tsiaj, ua rau nws yog qhov kev xaiv zoo rau lub neej niaj hnub hauv nroog.

Xaus lus, PU tawv hluavtaws yog cov khoom siv hloov pauv zoo uas muaj qhov zoo nkauj, kev ua tau zoo, thiab tus nqi tsim nyog, ua rau nws yog qhov kev xaiv nrov hauv kev ua lag luam. Raws li thev naus laus zis nce qib thiab kev thov ntawm kev ua lag luam hloov pauv, PU tawv hluavtaws yuav muaj ntau daim ntawv thov yav tom ntej hauv cov khoom xws li tsheb, rooj tog, khaub ncaws, thiab hnab, thiab lwm yam.