Hua
Hydroxyl Terminated Polybutadiene
Ko te Hydroxyl-terminated polybutadiene (HTPB) he ahua o te rapa wai he rereke te taumaha ngota (tata ki te 1500–10,000 g/mol) me te taumata teitei o te mahi tauhohenga.Ko te rapa wai he huinga ahurei o nga taonga tae atu ki te iti o te pāmahana whakawhiti karaihe, te ngawari o te pāmahana, te kaha ki te uta totoka, me te kaha rere pai.Kua whakamahia nuitia i roto i te whakapiri, te paninga, te hiri, te rongoa, tae atu ki nga taonga hihiko.
Ko te HTPB he wai whakawhiti he rite te tae ki te pepa ware pi me te pokey rite ki te tirikara witi.He rereke nga taonga na te mea he ranunga te HTPB ehara i te puhui parakore, ka hangaia kia tutuki nga whakaritenga motuhake a nga kaihoko.
1. TE PUKA: He wai maramara kore tae, he kowhai ranei
2. WHAKAMAHI, Wāhanga I:
| NGA KAUPAPA | Whakatakotoranga | |||
| Ko te ihirangi Hydroxyl mmol /g | 0.47 ~0.53 | 0.54 ~0.64 | 0.65 ~ 0.70 | 0.71 ~0.80 |
| Makuku, % (w/w ) | ≤0.05 | ≤0.05 | ≤0.05 | ≤0.05 |
| Te ihirangi peroxide (hei H2O2 ), %/ (w/w) | ≤0.04 | ≤0.05 | ≤0.05 | ≤0.05 |
| Taumaha Molecule Toharite, g/mol | 3800 ~4600 | 3300 ~4100 | 3000 ~3600 | 2700 ~3300 |
| Viscosity i te 40 ℃, Pa.s | ≤9.0 | ≤8.5 | ≤4.0 | ≤3.5 |
3. WHAKAMAHI, Wāhanga II:
| NGA KAUPAPA | WHAKAMAHI | ||
| Ko te ihirangi Hydroxyl mmol /g | 0.75 ~0.85 | 0.86~1.0 | 1.0 ~ 1.4 |
| Makuku, % (w/w ) | ≤0.05 | ≤0.05 | ≤0.05 |
| Te ihirangi peroxide (hei H2O2 ), %/ (w/w) | ≤0.05 | ≤0.05 | ≤0.09 |
| Taumaha Molecule Toharite, g/mol | 2800 ~3500 | 2200 ~3000 | 1800~2600 |
| Viscosity i te 25 ℃, Pa | 4~8 | 2~6 | 2~5 |
Notes
1) Ko nga raraunga hangarau katoa kua tohua i runga ake nei mo to tohutoro.
2) e pai ana etahi atu korero mo etahi atu korero.
4. Te Whakamahinga: Kei te whakamahia te HTPB i roto i nga momo motuka katoa me te matū matū pakari i roto i te rererangi rererangi me te rererangi mokowhiti, te pupuhi pupuhi, mo te whakamahinga a-iwi, ka taea te whakamahi i roto i nga mara tae atu ki nga hua PU, te whakarewa i nga hua elastomer, te peita, te hiko. rauemi hiri wetewete etc.
5. Te taumaha kupenga 170kg i roto i te 200 rita polyethylenelined pahū whakarewa.
Whakaritenga
E waatea ana te hanga hanga mo nga momo tono i runga i to hiahia hangarau.
He nui to maatau R&D, me te tari whakangao, e kaha ana ki te whakawhanake me te whakamatautau-whakaputa i nga mea hou me nga whakaritenga kia rite ki te whakaritenga motuhake.
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