Chii chinonzi PVDF material?
Polyvinylidene Fluoride (PVDF) ndeyepamusoro-inoshanda zvinhu zvinoshandiswa zvakanyanya mumaindasitiri emakemikari nekugadzira, uye inofarirwa nekunaka kwayo kwemakemikari kuramba, magetsi emagetsi uye simba remuchina. Muchikamu chino, tichaongorora zvakadzama kuti PVDF chii, zvimiro zvayo, mashandisirwo uye maitiro ekugadzira kuti ikubatsire kunzwisisa zviri nani zvakanakira chinhu ichi.
Kutanga, maitiro ekutanga ePVDF
PVDF ndeye semi-crystalline thermoplastic fluoropolymer, kunyanya polymerised kubva vinylidene fluoride (VDF) monomer. Nekuda kwekukwirira kwemagetsi kweatomu yefluorine uye kusimba kweCF bond, PVDF inoratidza zvinotevera zvivakwa:

Kemikari kuramba: PVDF inoshingirira zvakanyanya kune akawanda acids, alkalis, munyu uye zvinonyungudutsa, izvo zvinoita kuti igadzikane uye isingaite ngura muindasitiri yemakemikari nekufamba kwenguva.

Mechanical Strength: PVDF ine yakanakisa kusimba simba uye kukanganisa kupikisa, zvichiita kuti ichengetedze kuvimbika kwayo kwechimiro munzvimbo dzakaoma.

Zvivakwa zvemagetsi: Nekuda kweiyo yakaderera dielectric inogara uye yakakwirira insulating zvivakwa, PVDF inoshandiswa zvakanyanya mumagetsi nemagetsi minda, kunyanya seye insulating layer zvinhu zvewaya netambo.

Kugadzikana kwekupisa: PVDF ine kugadzikana kwakanaka kwekupisa uye inogona kushandiswa mumhando dzakasiyana-siyana dzetembiricha, uye inogona kazhinji kuchengetedza hunhu hwayo hwemuviri mukupisa kwe -40 ° C kusvika 150 ° C.

Chechipiri, nzira yekugadzira yePVDF
Kugadzirwa kwePVDF kunonyanya kuwanikwa kuburikidza nemahara radical polymerisation, kazhinji nemhinduro polymerisation kana kumiswa polymerisation. Mukuita kwepolymerisation, VDF monomers inoiswa muPVDF polymer pasi pemamiriro ekuita. Zvadaro, kuburikidza nenhevedzano yemashure ekurapa maitiro, anosanganisira kucheneswa, extrusion uye granulation, yekupedzisira kuumbwa kwePVDF zvigadzirwa zvine chaiwo emuviri zvimiro.
Chechitatu, nzvimbo huru dzekushandisa dzePVDF
PVDF yakashandiswa zvakanyanya mumaindasitiri mazhinji nekuda kwekuita kwayo kwakanaka:

Indasitiri yemakemikari: PVDF inowanzoshandiswa mukugadzirwa kwemhando dzakasiyana dzemidziyo yemakemikari, pombi nemavharuvhu, kunyanya muchiitiko chinosanganisira makemikari anoparadza.

Indasitiri yekuvaka: PVDF inoshandiswa mukugadzira machira epamusoro-soro, senge fluorocarbon coatings, ayo anoshandiswa kuchengetedza kunze kwemadziro ezvivakwa, uye anogona kuchengetedza kunaka kwezvivakwa kwenguva yakareba nekuda kweUV uye kuchembera kwayo.

Indasitiri yemagetsi nemagetsi: PVDF inoshandiswa zvakanyanya mukugadzira tambo, zvinobatanidza uye lithium bhatiri diaphragms nekuda kwekunaka kwayo kwemagetsi ekudzivirira uye kudzivirira kupisa.

Indasitiri yekuchenesa mvura: PVDF membrane zvinhu zvinoshandiswa mumunda wekurapa kwemvura, kunyanya mune ultrafiltration uye nanofiltration membranes, ayo anofarirwa nekukwirira kwavo kwemakemikari kuramba uye yakakwirira kusefa chaiko.

Chechina, tarisiro yemusika uye matambudziko ePVDF
Nekuwedzera kwekusimudzirwa kwemaindasitiri uye kuwedzera kwekudiwa kwezvinhu zvepamusoro-soro, musika wePVDF uri kukura nekukurumidza.Mutengo wepamusoro wekugadzira uye kuoma kwekugadzirwa kwePVDF kunoita kuti mutengo wayo wemusika udhure. Kushandiswa kwePVDF kunotarisanawo nemamwe matambudziko nekuda kwenyaya dzayo dzine chekuita nefluoride. Naizvozvo, kugadzirisa maitiro ekugadzira uye kuderedza kukanganiswa kwezvakatipoteredza kwePVDF kuchave kwakakosha mukusimudzira mune ramangwana.
Summary
Chii chinonzi PVDF material? Kuburikidza neongororo iri pamusoro, tinogona kuona kuti PVDF ndeyepamusoro-inoshanda fluoropolymer zvinhu zvine huwandu hwakasiyana hwemashandisiro ekushandisa. Kunyanya kupikisa kwemakemikari, simba remagetsi, magetsi emagetsi uye kugadzikana kwekupisa kunoita kuti iite basa rinokosha muminda yakawanda. Nekuvandudzwa kwezvinodiwa zvekuchengetedzwa kwezvakatipoteredza, kugadzirwa uye kushandiswa kwePVDF kuchasangana nematambudziko matsva nemikana. Kunzwisisa uye kugona zvivakwa uye mashandisirwo ePVDF kunogona kupa rutsigiro rwakakosha rwekuvandudza nekusimudzira maindasitiri ane hukama.