PPG-Poly(propylene glycol)
Whakaahuatanga
Ka wairewa te raupapa PPG i roto i ngā whakarewa waro pērā i te toluene, te etanoru, me te trichloroethylene. He whānuitia ana tono i roto i te ahumahi, te rongoā, ngā matū o ia rā me ētahi atu mara.
Ngā Whakatakotoranga
| Tauira | Āhua (25℃) | Tae (Pt-Co) | Uara Hydroxyl (mgKOH/g) | Taumaha ngota | Uara Waikawa (mgKOH/g) | Te Ihirangi Wai (%) | pH (1% wairewa ā-tau) |
| PPG-200 | Wai hinuhinu matotoru, mārama, kore tae | ≤20 | 510~623 | 180~220 | ≤0.5 | ≤0.5 | 5.0 ~ 7.0 |
| PPG-400 | Wai hinuhinu matotoru, mārama, kore tae | ≤20 | 255~312 | 360~440 | ≤0.5 | ≤0.5 | 5.0 ~ 7.0 |
| PPG-600 | Wai hinuhinu matotoru, mārama, kore tae | ≤20 | 170~208 | 540~660 | ≤0.5 | ≤0.5 | 5.0 ~ 7.0 |
| PPG-1000 | Wai hinuhinu matotoru, mārama, kore tae | ≤20 | 102~125 | 900~1100 | ≤0.5 | ≤0.5 | 5.0 ~ 7.0 |
| PPG-1500 | Wai hinuhinu matotoru, mārama, kore tae | ≤20 | 68~83 | 1350~1650 | ≤0.5 | ≤0.5 | 5.0 ~ 7.0 |
| PPG-2000 | Wai hinuhinu matotoru, mārama, kore tae | ≤20 | 51~62 | 1800~2200 | ≤0.5 | ≤0.5 | 5.0 ~ 7.0 |
| PPG-3000 | Wai hinuhinu matotoru, mārama, kore tae | ≤20 | 34~42 | 2700~3300 | ≤0.5 | ≤0.5 | 5.0 ~ 7.0 |
| PPG-4000 | Wai hinuhinu matotoru, mārama, kore tae | ≤20 | 26~30 | 3700~4300 | ≤0.5 | ≤0.5 | 5.0 ~ 7.0 |
| PPG-6000 | Wai hinuhinu matotoru, mārama, kore tae | ≤20 | 17~20.7 | 5400~6600 | ≤0.5 | ≤0.5 | 5.0 ~ 7.0 |
| PPG-8000 | Wai hinuhinu matotoru, mārama, kore tae | ≤20 | 12.7~15 | 7200~8800 | ≤0.5 | ≤0.5 | 5.0 ~ 7.0 |
Te Mahi me ngā Taupānga
1. Ka wairewahia ngā PPG200, 400, me te 600 ki te wai, ā, he āhuatanga anō hoki pērā i te whakahinuhinu, te whakarewa, te tango huka, me ngā pānga ārai-pūmau. Ka taea te whakamahi i te PPG-200 hei mea whakamarara mō ngā tae.
2. I roto i ngā mea whakapaipai, ka whakamahia te PPG400 hei whakangawari, hei whakangawari, hei hinu whakahinuhinu hoki.
3. Whakamahia hei tango huka i roto i ngā peita me ngā hinu waipēhi, hei tango huka i roto i te tukatuka rapa hangai me te rapa, hei ārai huka me te whakamatao mō ngā wai whakawhiti wera, hei whakarerekē matotoru hoki.
4. Whakamahia hei takawaenga i roto i ngā tauhohenga esterification, etherification, me te polycondensation.
5. Whakamahia hei kaiwhakarewa, hei whakarewa, hei tāpiri mō ngā hinu hangai. Ka whakamahia hoki hei tāpiri mō ngā wai tapahi wairewa-wai, ngā hinu roera, me ngā hinu waipēhi, hei hinu whakahinuhinu pāmahana-tiketike, hei hinu whakahinuhinu ā-roto, ā-waho hoki mō te rapa.
6. He tino pai ngā āhuatanga o te PPG-2000~8000 ki te whakahinuhinu, ki te ārai pahuka, ki te ātete wera, me te ātete huka.
7.Ko te PPG-3000~8000 te nuinga e whakamahia ana hei wāhanga o ngā polyol polyether mō te hanga kirihou pahuka polyurethane.
Ka taea te whakamahi tika, te whakaester rānei i te 8.PPG-3000~8000 mō te hanga i ngā mea hanga kirihou me ngā hinu whakahinuhinu.
Kete me te Rokiroki
Mōkihi:Ngā oko 200L/1000L
Rokiroki: Me waiho ki te wāhi maroke, hauhautanga, ki te rongoa pai, ka rua tau te roa o te ora.