Iyini i-PU?

I. Isingeniso ku-PU

I-PU, noma i-polyurethane, iyinto yokwenziwa equkethe i-polyurethane ikakhulukazi. Isikhumba sokwenziwa se-PU siyinto yesikhumba engokoqobo kakhulu enezakhiwo zomzimba ezingcono kanye nokuqina kunesikhumba semvelo.

Isikhumba esenziwe nge-PU sinezinhlobo eziningi zezicelo, okuhlanganisa ukukhiqizwa kwezihlalo zezimoto, amasofa, izikhwama zesandla, izicathulo, nezingubo, phakathi kokunye. Simnandi ngobuhle, sikhululekile, kulula ukusihlanza nokuyinakekela, futhi sinciphisa isidingo sesikhumba sezilwane, ngaleyo ndlela sihlangabezana nezidingo zemvelo ezivimbela ukuhlukunyezwa kwezilwane.

II. Ukuhlaziywa Kwezinto Ze-PU

1. Ukwakheka

Ingxenye eyinhloko yesikhumba esenziwe nge-PU yi-polyurethane, eyakhiwa ukusebenzisana kwe-polyether noma i-polyester ne-isocyanate. Ngaphezu kwalokho, isikhumba esenziwe nge-PU siqukethe nezinto zokugcwalisa, ama-plasticizer, ama-pigment, kanye nezinto ezisizayo.

2. Ukubukeka

Isikhumba esenziwe nge-PU sicebile ngokuthungwa nombala, futhi singalingisa amaphethini ahlukahlukene esikhumba njengengwenya, izinyoka, kanye nezikali zezinhlanzi ukuze kuhlangatshezwane nezidingo zemikhiqizo ehlukene.

3. Izakhiwo Ezibonakalayo

Isikhumba esenziwe nge-PU sinezakhiwo ezinhle kakhulu zomzimba ezifana nokuqina kokuthamba, ukumelana nokuguguleka, ukumelana namanzi, kanye nokuguquguquka. Kulula futhi ukusihlanza nokuyinakekela kunesikhumba semvelo, okwenza siqine kakhudlwana.

4. Inani Lokusebenza

Uma kuqhathaniswa nesikhumba semvelo, isikhumba esenziwe nge-PU sinezinzuzo ezithile njengezindleko eziphansi, izindleko zokukhiqiza eziphansi, kanye nokungadingi isikhumba sezilwane, okwenza kube ukukhetha okufanelekile empilweni yasemadolobheni yanamuhla.

Ekuphetheni, isikhumba esenziwe nge-PU siyinto esezingeni eliphezulu yokufaka esikhundleni ekhangayo ngobuhle, ukusebenza kwekhwalithi ephezulu, kanye namanani afanele, okwenza kube inketho ethandwayo emakethe. Njengoba ubuchwepheshe buthuthuka kanye nezidingo zemakethe zishintsha, isikhumba esenziwe nge-PU nakanjani sizoba nezinhlelo eziningi esikhathini esizayo emikhakheni efana nezimoto, ifenisha, izingubo, kanye nezikhwama, ukubala ezimbalwa.