Polyvinylidene fluoride/PVDF/CAS: 24937-79-9
Kufotokozera Kwachidule:
Dzina la Mankhwala: Polyvinylidene fluoride
CAS: 24937-79-9
Mtundu: ZA-Y
MF:C2H2F2
MW:64.0340864
KAYAMBIDWE:
Kufotokozera:
Poly(vinylidene fluoride) PVDF ndi polima yopanda ma crystalline yomwe imakhala ndi mphamvu za piezo-, pyro- ndi ferroelectric. Ndi polima yolunjika yomwe imawonetsa ma dipole amagetsi okhazikika molunjika ku mbali ya unyolo wa mamolekyu. Ma dipole awa amachokera ku kusiyana kwa ma electronegativity pakati pa maatomu a haidrojeni ndi fluorine poyerekeza ndi kaboni. Kutengera ndi momwe zinthu zimachitikira, PVDF imawonetsa magawo osiyanasiyana a kristalo (α,β,γ,δ). Gawo la β la PVDF ndi gawo lomwe limasonyeza mphamvu zabwino kwambiri za ferroelectric ndi piezoelectric.
Mafotokozedwe:
| Chinthu | Kufotokozera |
| Malo osungunuka | 166-170°C |
| Kuchulukana | 1.78 g/mL pa 25 °C |
| Kupanikizika kwa nthunzi | 15 mm Hg (32 °C) |
| Chizindikiro cha refractive | n20/D 1.42 |
| Kutentha kwa malo osungira. | Yotsekedwa mu youma, Kutentha kwa chipinda |
| Kusungunuka | zinthu zina zosungunulira za polar monga ma ester ndi ma amine achilengedwe: zosungunuka |
| Fomu | Ufa. |
| Mtundu | Choyera |
Kagwiritsidwe Ntchito
Poly (vinylidene fluoride) imalimbana ndi ma acid ndi ma alkali ambiri koma imaukiridwa ndi fuming sulfuric acid. Imasungunuka mu dimethylacetamide koma sisungunuka mu ma solvents ochepa. Ma copolymers apangidwa ndi ethylene, tetrafluoroethylene, chlorotrifluoroethylene ndi hexafluoroethylene. Yotsirizirayi ndi elastomer yotchedwa Viton kapena Fluorel.
Homopolymer imagwiritsidwa ntchito ngati chophimba chosagwira mankhwala cha chitsulo, cha zipilala za thanki, payipi, ndi ma impellor a pampu. Copolymer ya elastomeric yokhala ndi hexafluoroethylene ikachiritsidwa ndi hexamethylenediamine imagwiritsidwa ntchito ngati seal, gasket, 0-ring, chubu, chophimba ndi zipilala.
Poly (vinylidene fluoride) ndi yothandiza pakuphimba, filimu, nsalu zosefera, zingwe za zida, ma membrane osefera, zida zopopera, zingwe ndi ma valve. Imagwiritsidwanso ntchito ngati zinthu zopangira ma transducers muzipangizo monga mahedifoni, maikolofoni ndi zowunikira mawu. Ndi yofunikanso pakugwiritsa ntchito ma piezoelectric ndi ma electrostrictive. Kuphatikiza apo, ndi yothandiza pa mizere yosodza ya monofilament yomwe imalowa m'malo mwa monofilament ya nayiloni. Imagwira ntchito ngati chomangira chokhazikika chomwe chimagwiritsidwa ntchito popanga ma electrode ophatikizika a mabatire a lithiamu ion. Imagwira ntchito ngati choteteza chapamwamba kwambiri cha mawaya, zinthu zopangidwa ndi zinthu zina ndi masensa opanikizika. Imagwiritsidwa ntchito popanga zosefera zomwe zimagwiritsidwa ntchito kukonzekera zitsanzo za chromatography yamadzimadzi yogwira ntchito bwino komanso njira zina zapamwamba zowunikira.
Zophimba, filimu, nsalu yosefera, zophimba zida, zophimba zosefera, zigawo za pampu ndi zophimba ndi ma valve.
Kulongedza ndi Kutumiza
20KG/Ngoma
Ndi katundu wamba ndipo amatha kutumizidwa kudzera m'nyanja ndi mlengalenga
Sungani ndi kusunga
Nthawi yosungiramo zinthu: Miyezi 24 kuyambira tsiku lopangidwa m'maphukusi oyambirira osatsegulidwa, osungidwa pamalo ozizira komanso ouma, kutali ndi dzuwa, madzi.
Nyumba yosungiramo zinthu zopumira mpweya, Youma pang'ono, Yosiyana ndi ma oxidants, ma acid.
