I-Phthalic Anhydride Polyester polyol
Olu ngcelele lweepolyols ikakhulu ziipolyester ezinevumba elimnandi ezilungiswe yi-polycondensation okanye ukuguqulwa kwe-phthalic anhydride, i-diethylene glycol kunye nezinye izinto ezikrwada.Zisetyenziswa kakhulu kwintsimi ye-foam enzima kunye ne-adhesives.Baneenzuzo zevumba eliphantsi, umbala ophantsi, umsebenzi wokusabela okuphezulu, uzinzo olubalaseleyo lwe-hydrolysis, umxholo omnandi kakhulu, uzinzo oluhle kunye nobuninzi bezinto ezidibeneyo, Kwaye isakhiwo semveliso sinokuhlengahlengiswa ngokweemfuno zabathengi.
Olu chungechunge lwe-polyester polyols lunokusetyenziswa ngokubanzi kwifriji, ukugcinwa okubandayo, ukutshiza, amandla elanga, imibhobho ye-thermal, i-insulation yokwakha kunye nezinye iindawo zokubunjwa kwe-foam enzima, ezinye zeemveliso zokunamathela.
| uthotho | Izinto | Ixabiso leHydroxyl (mgKOH/g) | Ixabiso leasidi (mgKOH/g) | Isiqulatho samanzi (％) | I-viscosity yobushushu begumbi (25℃, cps) |
| Uthotho lwe-phthalic anhydride kunye nezinye ii-dibasic acids ezinevumba elimnandi | PE-B175 | 170-180 | ≤1.0 | ≤0.05 | 9000-13000 |
| PE-B503 | 300-330 | ≤1.0 | ≤0.05 | 2000-4000 | |
| PE-D504 | 400-450 | ≤2.0 | ≤0.1 | 2000-4000 | |
| PE-D505 | 400-460 | ≤2.0 | ≤0.1 | 2000-4000 |
