Polyvinylidene fluoride/PVDF/CAS: 24937-79-9
Wehewehe Pōkole:
Inoa Huahana: Polyvinylidene fluoride
CAS: 24937-79-9
ʻAno: ZA-Y
MF:C2H2F2
MW:64.0340864
ʻANO:
Wehewehena:
ʻO Poly(vinylidene fluoride) PVDF kahi polymer semi crystalline non-centrosymmetric e hōʻike ana i nā waiwai piezo-, pyro- a me ferroelectric. He polymer linear ia e hōʻike ana i nā dipoles uila mau loa e kū pono ana i ke kuhikuhi o ke kaulahao molekala. Loaʻa kēia mau dipoles mai ka ʻokoʻa o ka electronegativity ma waena o nā ʻātoma o ka hydrogen a me ka fluorine e pili ana i ke kalapona. Ma muli o nā kūlana hana, hōʻike ʻo PVDF i kekahi mau pae crystalline like ʻole (α,β,γ,δ). ʻO ka pae β o PVDF ka pae e hōʻike ana i nā waiwai ferroelectric a me piezoelectric maikaʻi loa.
Kikoʻī:
| Mea | Nā kikoʻī |
| Kiko heheʻe | 166-170°C |
| Ka nui o ka paʻa | 1.78 g/mL ma 25 °C |
| Kaomi mahu | 15 mm Hg (32 °C) |
| ʻIkepili refractive | n20/D 1.42 |
| Mahana mālama. | Sila ʻia i loko o ka maloʻo, ka mahana o ka lumi |
| Ka hiki ke hoʻoheheʻe ʻia | kekahi mau mea hoʻoheheʻe polar e like me nā esters organik a me nā amines: hiki ke hoʻoheheʻe ʻia |
| Palapala | Pauka. |
| Waihoʻoluʻu | Keʻokeʻo |
Hoʻohana
Kūpaʻa ka Poly(vinylidene fluoride) i ka hapa nui o nā waikawa a me nā alkalies akā ua hoʻouka ʻia e ka waikawa sulfuric fuming. Hiki ke hoʻoheheʻe ʻia i loko o ka dimethylacetamide akā ʻaʻole hiki ke hoʻoheheʻe ʻia i loko o nā mea hoʻoheheʻe polar liʻiliʻi. Ua hana ʻia nā Copolymers me ka ethylene, tetrafluoroethylene, chlorotrifluoroethylene a me hexafluoroethylene. ʻO ka mea hope he elastomer i kapa ʻia ʻo Viton a i ʻole Fluorel.
Hoʻohana ʻia ka homopolymer ma ke ʻano he uhi pale kemika no ke kila, no nā uhi pahu, nā hose, a me nā impellors pamu. Hoʻohana ʻia ka copolymer elastomeric me ka hexafluoroethylene i ka wā e hoʻōla ʻia me ka hexamethylenediamine ma ke ʻano he sila, gasket, 0-ring, tubing, uhi a me ka uhi.
He mea pono ka Poly(vinylidene fluoride) i nā uhi, ka ʻiliʻili, ka lole kānana, nā uhi mea kani, nā membrane kānana, nā ʻāpana pamu, nā uhi a me nā valve. Hoʻohana ʻia hoʻi ia ma ke ʻano he mea no nā transducers i nā mea hana e like me nā headphone, nā microphone a me nā mea ʻike sonic. He mea nui hoʻi ia no nā noi piezoelectric a me electrostrictive. Eia kekahi, he mea pono ia no nā laina lawaiʻa monofilament e pani ana i ka nylon monofilament. Hana ia ma ke ʻano he mea hoʻopaʻa maʻamau i hoʻohana ʻia i ka hana ʻana o nā electrodes composite no nā pila lithium ion. Hana ia ma ke ʻano he insulator kiʻekiʻe no nā uea, nā nanomaterials a me nā sensor kaomi. Hoʻohana ʻia ia e hana i nā kānana i hoʻohana ʻia e hoʻomākaukau i nā laʻana no ka chromatography wai hana kiʻekiʻe a me nā ʻano hana loiloi holomua ʻē aʻe.
Nā uhi, kiʻiʻoniʻoni, lole kānana, nā uhi mea hana, nā membrane kānana, nā ʻāpana pamu a me nā uhi a me nā kiwikā.
ʻŌpala a me ka Hoʻouna ʻana
20KG/Pahu
No nā waiwai maʻamau a hiki ke hāʻawi ma ke kai a me ka lewa
Mālama a me ka mālama ʻana
Ola papa: 24 mahina mai ka lā i hana ʻia ai i loko o ka pahu i wehe ʻole ʻia mua i mālama ʻia i kahi maloʻo a me kahi anuanu, mai ka lā pololei, ka wai.
Hale kūʻai ea, hoʻomaloʻo wela haʻahaʻa, hoʻokaʻawale ʻia mai nā mea hoʻomake a me nā waikawa.
