He wai i te pāmahana rūma, he pai ki te whakamahi me te tukatuka. Ko te pāmahana whakawhiti karaihe o -80 ℃, me te pai o te mahi iti-mahana, nga ahuatanga miihini o ona hua elastomer me te PTMG tata ki te PTMG, ka taea te whakakapi i te PTMG i roto i te taiao wera iti-kino.
Ma te pai o te ngota ngota, ka taea e ia te whakakapi i te PTMG i roto i te hiako horihori ngawari me te mangumangu ta; ka taea te whakamahi i roto i nga piriti iti-mahana-aukati, paninga, polyurethane elastomers me etahi atu.
Nga whakaritenga hangarau
Tūemi | PET500 | PET1000 | PET2000 |
Tau toharite taumaha ngota | 400-600 | 800-1200 | 1700-2300 |
Te uara Hydroxyl, mgKOH/g | 177.7~266.5 | 88.8~133.2 | 46.3~62.7 |
Viscosity (40 ℃), Pa.s | ≤0.5 | ≤1.0 | ≤5.0 |
Uara waikawa, mgKOH/g | ≤0.05 | ≤0.05 | ≤0.05 |
Hautanga papatipu wai, % | ≤0.05 | ≤0.05 | ≤0.05 |