Biyaha - maqaar PU xanbaarsanwaxay isticmaashaa H2O sida dhexdhexaadinta aasaasiga ah ee kala firdhisan inta lagu jiro xinjirowga, jidh ahaan bedelaya Dimethylformamide (DMF) iyo toluene. Habkan polymerization aqueous waxa uu gaadhaa eber DMF hadhaaga ah, iyada oo hubinaysa in substrate-ku si adag u dhaafo xadka EU REACH SVHC iyada oo aan waxyeello u geysan xoogga diirinta badda- jasiiradda microfiber matrix.
Polymerization iyo Qaabdhismeedka Kiimikada (DMF vs. H₂O)
Walxaha caadiga ah -polyurethane ku salaysan wuxuu ku tiirsan yahay dareerayaasha halogenated sunta ah si ay u milaan resin PU ka hor inta aan la daabicin saldhiga fiber polyetylen terephthalate (PET). Inta lagu jiro marxaladda daaweynta kulaylka ee 150 digrii, dareerayaashani way uumi baxaan, iyagoo siidaaya uruurin sare oo ah Isku-dhafka Dabiiciga ah ee Volatile (VOCs) iyo dabinnada DMF ee haraaga ah gudaha micropores ee walxaha.
Taa beddelkeeda, injineernimada amaqaar macmal ah oo dareere ah oo bilaash ahwaxay ku tiirsan tahay biyaha - polyurethane aliphatic oo kala firdhiyey. Habka daaweyntu waxa uu uumi baxaa uumiga biyaha saafiga ah, isaga oo meesha ka saaraya qiiqa sunta ah inta uu samaynayo iskutallaab sare{2}}shabakad polymer ah oo xidhiidhsan. Matrixka soo socdaa waxa uu qiyaasaa kala duwanaanshaha kiimikaad iyo farsamada ee Tier 1 wax soo iibsiga ee qiimaynaya aeco- jumlo iib ah oo maqaar faux saaxiibtinimokala guurka.
| Qiyaasta Tijaabada | Maqaarka PU ku salaysan | Biyaha - maqaar PU xanbaarsan | Habka Tijaabada |
| Dhexdhexaadiyaha Kala-firdhinta | DMF / Toluene / MEK | H₂O (Biyo saafi ah) | Hantidhawrka Kiimikada |
| Hadhaaga DMF | 500 - 1500 ppm | 0ppm (Lama ogaan karo{1}) | EN 16778 |
| Wadarta guud ee qiiqa VOC | >300 ug/g | In ka yar ama la mid ah 10 mg/kg | VDA 277 |
| Iska caabinta Hydrolysis | 1 - 2 Todobaadyo | >5 usbuuc (70 darajo, 95% RH) | STAR TM344 |
| Xoogga diirinta | In ka yar ama la mid ah 20 N/3cm | Ka weyn ama la mid ah 30 N/3cm | ISO 2411 |
Ogeysiiska Soo iibsiga & QA:U beddelashada khadkaaga wax-soo-saarka eber{0}}Substrate-ka DMF? WINIW International Co., Limited waxay bixisaa raad-raac kiimiko oo buuxa iyo ISO 9001 xogta jireed ee la xaqiijiyay.
Si toos ah uga codso Swatches Jirka & Shaybaadhka TDS ee qaybtayada maqaarka ee PU.
Caafimaadka Shaqada iyo U Hogaansanaanta Deegaanka Caalamiga ah
Wax soo saarka badan ee dareeraha{0}ku salaysan wuxuu u soo bandhigaa hawl wadeenada warshada khataro daran oo neefsashada iyo maqaarka maqaarka ah. Iyadoo si adag loo qaato xinjirowga aqueous, WINIW International Co., Limited waxay gebi ahaanba meesha ka saaraysaa soo-gaadhista shaqaalaha ee wasakhowga hawada khatarta ah (HAPs) ee khadka dahaarka ah.
CPO-yada, beddelka kiimikaadkan waxa uu meesha ka saarayaa carqaladaha sharciyeed. La xaqiijiyaymaqaar macmal ah oo dareere ah oo bilaash ahdhaaftay Soo jeedinta California 65 digniinaha iyo xayiraadaha EU REACH Lifaaqa XVII. Codsiyada baabuurta, maqnaanshaha buuxda ee dareerayaasha haraaga ah waxay hubisaa in walxuhu dhaafo VDA 277 urta iyo xaddidaadaha qiiqa (In ka yar ama la mid ah Fasalka 3.0), jidh ahaan ka hortagga sunta kiimikada- gaasta iyo fogaynta muraayadaha hore (DIN 75201) ee sare - kabadhada baabuurta heerkulka.
Su'aalaha Inta Badan La Isweydiiyo
S: Waa maxay faraqa u dhexeeya biyaha {{0} PU xanbaarsan iyo dareeraha -ku salaysan PU?
A: Biyaha - PU xanunku waxay u isticmaalaan biyaha sidii dhexdhexaadiyaha kala firdhiyey, iyagoo gaadhaya 0 ppm hadhaaga DMF iyo in ka yar ama la mid ah 10 mg/kg VOCs. Solvent - PU ku salaysan waxay u baahan tahay kiimikooyin sun ah sida Dimethylformamide iyo toluene si loo xinjiro, taasoo ka tagta hadhaaga khatarta ah ee ku xayiran matrixka polymerka.
S: WBPU ma u dhigma xoogga diirka ee maqaar dhaqameed?
A: Yes. Aqueous aliphatic polyurethane forms a highly cross-linked network within the sea-island PET matrix. This ensures the material consistently maintains an ISO 2411 peeling strength of ≥30 N/3cm and endures >100,000 Martindale xoqid abrasion.
S: WBPU ma looga baahan yahay u hogaansanaanta REACH ee Yurub?
J: Iyadoo si aad ah loo habeeyey, heerka PU wuxuu si joogta ah u fashiliyaa xadka EU REACH sababtoo ah nuxurka sare ee DMFA. Isticmaalka WBPU waxay dammaanad qaadaysaa heerarka aan la ogaan karin - ee dhammaan walxaha xaddidan ee welwelka aadka u sarreeya (SVHCs), taasoo si toos ah u dedejinaysa oggolaanshaha kastamyada Yurub ee OEM-yada caalamiga ah.
