Siyini lesikhumba se-pu?

Isikhumba se-PU sibizwa ngesikhumba se-polyurethane, okuyisikhumba sokwenziwa esenziwe ngezinto ze-polyurethane. Isikhumba se-PU yisikhumba esivamile, esisetshenziswa kabanzi emikhiqizweni yezimboni ehlukahlukene, njengezingubo, izicathulo, ifenisha, indawo yezimoto nezesekeli, ukupakipha kanye nezinye izimboni.

Ngakho-ke, ngesikhumba se-pu sithatha isikhundla esibaluleke kakhulu emakethe yesikhumba.

Ukusuka kwinqubo yokukhiqiza kanye nomqondo wokuvikela imvelo, i-pu lesikhumba ihlukaniswe ngezinhlobo ezimbili zesikhumba se-pu esiphindaphindayo nesikhumba se-pu yendabuko.

Uyini umehluko phakathi kwezinhlobo ezimbili zesikhumba?

Ake siqale sibheke umehluko ezinhlelweni zabo zokukhiqiza.

Inqubo Yokukhiqiza Yezikhumba Zendabuko Yezulu:

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2. Ukuhlanganisa i-substrate, i-polyurethane resin ehlanganiswe e-substrate, njengoba ingaphezulu kwesikhumba se-pu, i-substrate ingakhethwa izindwangu ezahlukahlukene, njengekotini, indwangu ye-polyester, njll., Noma ezinye izinto zokwenziwa.

I-3. Ukucubungula kanye nokwelashwa, i-substrate ehlanganisiwe iyacutshungulwa futhi iphathwa, njengokufaka iziqu, ukuphrinta kanye nezinye izinqubo, ukuze kutholakale ukuthungwa okudingekayo, umbala kanye nomphumela ongaphezulu. Lezi zinyathelo zokucubungula zingenza isikhumba sesikhumba sibheke njengesikhumba sangempela, noma sibe nomphumela othile wokuqamba.

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Inqubo yokukhiqiza yesikhumba se-PU esenziwe kabusha:

1. Qoqa futhi usebenzise kabusha imfucumfucu yemikhiqizo ye-polyurethane, efana nemikhiqizo yakudala ye-PU Leather, imfucumfucu yokukhiqiza, ngemuva kokuhlunga nokuhlanza ukungcola komhlaba kanye nokungcola;

2. Culverize izinto ezihlanzekile ze-polyurethane zibe izinhlayiya ezincane noma i-powder;

3. Sebenzisa i-mixer ukuxuba izinhlayiya ze-polyurethane noma i-powders nge-polyurethane prepolymers, ama-filler, ama-antioxizizers, ama-antioxidants, bese uwafaka kwimishini yokushisa yokusabela kwamakhemikhali ukwakha i-polyurethane matrix entsha ye-polyurethane. I-polyurethane matrix yabe yenziwa ngefilimu noma ukwakheka okucacisiwe ngokuphosa, ukunamathela noma ukuvumelanisa.

I-4. Izinto ezakhekayo ziyafudumala, zipholile futhi zelashwa ukuze kuqinisekiswe izakhiwo zomzimba kanye nokuqina kwamakhemikhali.

5. Ukwelashwa kwe-pu lesikhumba esetshenzisiwe, kuhlanganiswe, kuhlanganiswe, kudaywe kanye nokunye ukwelashwa komhlaba ukuthola ukubukeka nokuthungwa okufiselekayo;

6. Yenza ukuhlola kwekhwalithi ukuze kwenziwe kuhlangane namazinga nezidingo ezifanele. Ngemuva kwalokho ngokuya ngezidingo zamakhasimende, uthathe osayizi nobukhulu bokwehla kwesikhumba;

Ngenqubo yokukhiqiza, kungaqondakala ukuthi uma kuqhathaniswa nesikhumba se-pu yesimo se-pu, i-pu lesikhumba evuselelwe kabusha ikhokha kakhudlwana ekuvikelweni kwemvelo kanye nokuvuselelwa kabusha kwezinsiza, kunciphisa ukungcoliswa kwemvelo. Sinezitifiketi ze-GRS ze-PU ne-PVC lesikhumba, ezibhekelela umqondo wokuthuthukiswa okuqhubekayo nokuvikelwa kwemvelo, futhi uzijwayeze ukukhiqizwa kwesikhumba.