PU tawv yog dab tsi?

Tawv PU hu ua tawv polyurethane, uas yog tawv hluavtaws ua los ntawm cov khoom siv polyurethane. Tawv Pu yog ib hom tawv uas siv ntau, siv dav hauv ntau yam khoom lag luam, xws li khaub ncaws, khau, rooj tog, tsheb sab hauv thiab cov khoom siv, ntim khoom thiab lwm yam lag luam.

Yog li ntawd, tawv pu nyob hauv txoj haujlwm tseem ceeb heev hauv kev lag luam tawv.

Los ntawm cov txheej txheem tsim khoom thiab lub tswv yim tiv thaiv ib puag ncig, tawv pu feem ntau muab faib ua ob hom tawv pu rov ua dua tshiab thiab tawv pu ib txwm muaj.

Qhov txawv ntawm ob hom tawv yog dab tsi?

Cia peb xub saib qhov sib txawv ntawm lawv cov txheej txheem tsim khoom.

Cov txheej txheem tsim cov tawv pu ib txwm muaj:

1. Kauj ruam thawj zaug hauv kev tsim cov tawv pu yog ua polyurethane, thiab cov isocyanate (lossis polyol) thiab polyether, polyester thiab lwm yam khoom siv raw yog ua rau hauv polyurethane resin los ntawm kev tshuaj lom neeg.

2. Txheej cov substrate, polyurethane resin coated rau ntawm lub substrate, ua qhov chaw ntawm pu tawv, lub substrate tuaj yeem xaiv ntau yam ntaub, xws li paj rwb, polyester ntaub, thiab lwm yam, lossis lwm yam khoom siv hluavtaws.

3. Kev ua thiab kev kho, cov khoom siv coated yog ua thiab kho, xws li embossing, luam ntawv, dyeing thiab lwm yam txheej txheem, txhawm rau kom tau txais cov qauv, xim thiab qhov cuam tshuam ntawm qhov chaw xav tau. Cov kauj ruam ua tiav no tuaj yeem ua rau PU tawv zoo li tawv tiag tiag, lossis muaj cov qauv tsim tshwj xeeb.

4. Kev kho tom qab: Tom qab ua tiav cov txheej txheem, PU tawv yuav tsum tau ua qee cov kauj ruam tom qab kev kho, xws li kev tiv thaiv txheej txheem, kev kho dej tsis nkag, thiab lwm yam, kom txhim kho nws cov khoom siv thiab cov yam ntxwv.

5. Kev tswj xyuas thiab kev kuaj xyuas zoo: Hauv txhua theem ntawm kev tsim khoom, kev tswj xyuas zoo thiab kev tshuaj xyuas yuav raug ua kom ntseeg tau tias PU tawv ua tau raws li qhov xav tau ntawm kev tsim qauv thiab kev qhia tshwj xeeb.

Cov txheej txheem tsim khoom ntawm cov tawv pu rov ua dua tshiab:

1. Sau thiab rov ua dua cov khoom pov tseg polyurethane, xws li cov khoom tawv pu qub, cov khib nyiab tsim tawm, tom qab txheeb xyuas thiab ntxuav cov khoom tsis huv thiab av qias neeg ntawm qhov chaw, thiab tom qab ntawd ua kev kho kom qhuav;

2. Muab cov khoom siv polyurethane huv si ua hmoov me me los yog hmoov;

3. Siv lub tshuab sib tov los sib tov cov khoom me me lossis hmoov polyurethane nrog polyurethane prepolymers, fillers, plasticizers, antioxidants, thiab lwm yam, thiab tom qab ntawd muab tso rau hauv cov khoom siv cua sov rau kev tshuaj lom neeg kom tsim tau ib lub polyurethane matrix tshiab. Lub polyurethane matrix ces ua rau hauv ib zaj duab xis lossis cov duab tshwj xeeb los ntawm kev casting, txheej lossis calendering.

4. Cov khoom tsim tau raug cua sov, txias thiab kho kom zoo kom ntseeg tau tias cov khoom siv lub cev thiab tshuaj lom neeg ruaj khov.

5. Kho cov tawv pu rov ua dua tshiab, embossed, coated, dyed thiab lwm yam kev kho kom zoo nkauj kom tau txais cov tsos thiab cov qauv xav tau;

6. Ua qhov kev tshuaj xyuas zoo kom ua tau raws li cov qauv thiab cov kev cai. Tom qab ntawd raws li cov neeg siv khoom xav tau, txiav ua ntau qhov ntau thiab tsawg thiab cov duab ntawm cov tawv tiav lawm;

Los ntawm cov txheej txheem tsim khoom, nws tuaj yeem nkag siab tias piv rau cov tawv pu ib txwm muaj, cov tawv pu rov ua dua tshiab them sai dua rau kev tiv thaiv ib puag ncig thiab kev siv cov khoom siv rov ua dua tshiab, txo cov pa phem ib puag ncig. Peb muaj daim ntawv pov thawj GRS rau tawv pu thiab pvc, uas ua raws li lub tswv yim ntawm kev txhim kho kom ruaj khov thiab kev tiv thaiv ib puag ncig, thiab kev xyaum hauv kev tsim tawv.