Te pūhaumāota polyvinylidene/PVDF/CAS: 24937-79-9
Whakaahuatanga Poto:
Ingoa Hua: Polyvinylidene fluoride
CAS: 24937-79-9
Momo: ZA-Y
MF:C2H2F2
MW:64.0340864
HANGANGA:
Whakaahuatanga:
Ko te Poly(vinylidene fluoride) PVDF he pūmua haurua-kiriata kore-pokapūrite e whakaatu ana i ngā āhuatanga piezo-, pyro- me te ferroelectric. He pūmua rārangi e whakaatu ana i ngā dipoles hiko tuturu e poutū ana ki te ahunga o te mekameka ngota. Ko ēnei dipoles ka puta mai i te rerekētanga o te irahiko i waenga i ngā ngota o te hauwai me te fluorine e pā ana ki te waro. I runga i ngā tikanga tukatuka, ka whakaatuhia e te PVDF ētahi wāhanga tioata rerekē (α,β,γ,δ). Ko te wāhanga β o te PVDF te wāhanga e whakaatu ana i ngā āhuatanga ferroelectric me te piezoelectric pai rawa atu.
Whakatakotoranga:
| Taonga | Whakatakotoranga |
| Te pūwāhi rewa | 166-170°C |
| Kiato | 1.78 g/mL i te 25 °C |
| Pēhanga kohu | 15 mm Hg (32°C) |
| Taupū whakaata | n20/D 1.42 |
| Te pāmahana rokiroki | Hirihia ki te pāmahana maroke, rūma |
| Te wairewatanga | ētahi whakarewa pōro pērā i ngā ester waro me ngā amine: ka wairewa |
| Puka | Paura. |
| Tae | Mā |
Whakamahinga
He ātete te Poly(vinylidene fluoride) ki te nuinga o ngā waikawa me ngā kawakore engari ka whakaekea e te waikawa whanariki paowa. Ka wairewa i roto i te dimethylacetamide engari kāore e wairewa i roto i ngā whakarewa iti ake te polar. Kua hangaia ngā copolymers me te ethylene, te tetrafluoroethylene, te chlorotrifluoroethylene me te hexafluoroethylene. Ko te mea whakamutunga he elastomer e kiia nei ko Viton, Fluorel rānei.
Ka whakamahia te homopolymer hei paninga ātete matū mō te maitai, mō ngā arai tāke, ngā ngongo wai, me ngā impeller papu. Ko te copolymer elastomeric me te hexafluoroethylene ina whakamaroketia ki te hexamethylenediamine ka whakamahia hei hiri, hei gasket, hei mowhiti-0, hei ngongo, hei paninga me te arai.
He pai te Poly(vinylidene fluoride) mō ngā paninga, kiriata, kakahu tātari, arai taputapu, kiriuhi tātari, wāhanga papu, arai me ngā takirere. Ka whakamahia hoki hei rauemi mō ngā whakawhiti i roto i ngā taputapu pēnei i ngā pane whakarongo, ngā hopuoro me ngā taputapu kite oro. He mea nui hoki mō ngā tono piezoelectric me te electrostrictive. Hei tāpiri, he pai mō ngā aho hī ika monofilament hei whakakapi i te nairona monofilament. Ka mahi hei here paerewa e whakamahia ana i roto i te hanga i ngā irahiko hiato mō ngā pākahiko lithium ion. Ka mahi hei ārai kounga teitei mō ngā waea, ngā nanomaterials me ngā pūoko pēhanga. Ka whakamahia hei hanga tātari hei whakarite tauira mō te chromatography wai mahi teitei me ētahi atu tikanga tātari matatau.
Ngā paninga, te kiriata, te kakahu tātari, ngā arai taputapu, ngā kiriuhi tātari, ngā wāhanga papu me ngā arai me ngā takirere.
Te Tākai me te Tukunga
20KG/Pahu
Nō ngā taonga noa, ā, ka taea te tuku mā te moana me te rangi
Te pupuri me te rokiroki
Te roa o te oranga: 24 marama mai i te rā i hangaia ai, i roto i te takai taketake kāore anō kia whakatuwheratia, rongoatia ki te wāhi matao, maroke, ā, kāore e taea te ārai i te rā tika, i te wai rānei.
Whare putunga hauhautanga, Whakamaroke pāmahana iti, Wehea mai i ngā waikura me ngā waikawa.
