Pvdf ea lelapa la fluorocarbon

November 03, 2024

Fluorne Resin Famin Lelapa la Pvdf Crystalling, thepa ea mantlha, mekhoa ea Synthesis, libaka tsa boikitlaetso le baetsi ba mantlha ba kopo le baetsi ba mantlha ba kopo le baetsi ba mantlha

I. Selelekela sa Pvdf

PolyvinyLidene Fluoride (Pvdf) 1) milione.PVDF , 'me e sebelisoa haholo ho etsa bangollo ea Footor Resins, Resin e na le ts'ebetso e ntle, botae, ho itlhomphutha, ho ts'oaroa, ho ts'oaroa, ho etsa phallo.

Ketane e ka sehloohong ea Pvdf e na le sebopeho sa sehlopha sa Ch2- le CF2SIts, e susumetsang pvdf e nang le thepa e ntle ea polyethylene (-CH2-cf2-) n, joalo-joalo Liradara tse fumanehang khoebong tsa povdf Rentin li fumaneha ka boholo bo fapaneng. Ma-Pvds a fumanehang ka khoebo ke li-copolelymers tsa VDF le li-monomers tse ling tse nang le metsi a mangata joalo ka HFP, CTF, CTF. Li-monompers e le hore mothepu o na le thepa e 'ngoe ea polymati e tsoang ho batho ba bong, joalo ka ho ntlafatsa bonolo ba Pvdf, e le hore cable e loketse terata le khoele.

Ea bobeli, sebopeho sa crystalline sa pvdf

PolyvinyLidene Fluoride (Pvdf) bamopoymile e tsoang ho Crystallininininininity ea eona ho tloha 50% ho ea ka karolo ea tlhahiso ea pele. Tekanyo ea kristallini e ama haholo ba thata, matla le khanyetso e matla ea polymer ea Pvdf. Lintlha tse ling tse amang thepa ea Pvdf ho kenyelletsa boima ba bilter le ho ajoa ha bona, ho sa tsotelleng liketane tsa carbon-carstatoline mordoy. E ts'oanang le li-polyolefin tse ling tsa polyar Polyllina Phapang ka boholo le kabo lipakeng tsa tse peli bakeng sa boholo ba lihlahisoa tsa PVDF li khethoa ke mokhoa oa polymerization.

Crystallization ea Pvdf e bonts'a polycrystalline e rarahaneng ea polycrystalline e sa bonoeng ea polymer eo polymer ea tsebahalang. Ho na le mefuta e mene e fapaneng ea kristantaline: α, Β, γ, γ, le Δ. Mefuta e mehlano ea kristale e boetse e tlalehiloe ka har'a lingoliloeng, α, Β, β, γ, δ, δ, δ. Mefuta ena ea kristale e teng karolong e fapaneng, le lintlha tse amang karohano ea kristale, le ho ba teng ha mafura a motlakase nakong ea kristasta nakong ea kristasta nakong ea kristasta nakong ea kristasta nakong ea kristasta nakong ea kristasta nakong ea kristasta nakong ea kristasta nakong ea kristasta nakong ea kristasta nakong ea kristasta nakong ea kristasta. α le β ke liforomo tse tloaelehileng ka ho fetisisa libakeng tse sebetsang. Morfanet. Hangata, mmuso oa αrystalline o thehoa nakong ea ts'ebetso e tloaelehileng, mmuso oa Β Crystalline o hlahisoa tlasa maemo a ikhethang, 'me boemo ba kristale bo etsoa ka mokhoa o khethehileng tlasa tšimo ea motlakase o phahameng. TLHOKOMELISO EA PVDF ke 1.98 g / cm3 bakeng sa linyeoe tsohle tsa α-km-cm3 bakeng sa 1,78 g / cm3, sena se bonts'a lengolo la eona ea kristastallinity e ka ba 40%.

Taba ea boraro, ts'ebetso ea mantlha ea PVDF

(1) Thepa ea mochini

Pvdf e na le thepa e ntle haholo ea ho atisa. Ha re bapisoa le polymers ea Perfbucarbon, Deformation e neng e eketseha, bophelo ba ho feto-fetoha khafetsa bo feta. Matla a mochini a ntlafatsoa haholo ka kalafo e tataisoang. Ho tlatsa boholo ba lieta tsa khalase kapa likhoele tsa carbon li ka ntlafatsa matla a The Base Polymer.PVDF Mechaji

Pvdf (PolyvinyLidene Fluoride) e na le thepa e ntle ea ho atisa, 'me litekanyetso tsa eona tsa thepa li ka etsahala.

Matla a Tenstile: Matla a Terne a Fvdf a ho 50mpa, hoo e ka bang habeli ho 55Ma, hoo e ka bang habeli ho PTFE (POLYTETTROEER) 1.

TenderIile Modululus: Ka lebelo la 5mm / mets, tenulus ea Pvdf ke 2280mpa2.

Ternsits Surt: Ka lebelo la setheo sa 50mm / mets, se hlahisoang chankaneng se matla sa Pvdf ke 59Ma2.

Nako ea nako ea phomolo: ka lebelo la 50mm / min, nqolo ena e senyehileng ke 60% 2.

Matla a feshene: matla a ho fetela pele a pvdf a pakeng tsa 48 le 62 mpa3.

Ho feto-fetoha ha moeli oa Elasticity: Modululus ea FXDF e pakeng tsa 1.4 le 1.8 GPA3.

Matla a compression: Matla a Tlhahlobo a Pvdf a pakeng tsa 69 le 103 mpa3.

Matla a nang le tšusumetso: matla a tšusumetso a pvdf ke 211j-M-¹3.

Menyako	60HZ	10-3 hz	10-6hz	10-9HZ
Destactric Contern (25 ° C)	9 ~ 10	8 ~ 9 9	8 ~ 9 9	3 ~ 4
Tahlehelo ea Diectic	0.03 ~ 0.05	0.005 ~ 0.02	0.03 ~ 0.05	0.09 ~ 0.11
Ha ho hateloa / ω.M				2x10-12
Matla a Diectric Botenya / 0,003175m Thichness /,000203m				260 1300

(2) Matla a motlakase

Melaoana ea matla a motlakase a homopolymer ntle le filimi leha e le 'ngoe e thathamisitsoeng ho Lethathamo la Bokooa le kamora polymer ho ba le lifoto tse fapaneng tsa kristale. Bakeng sa likarolo tse ileng tsa tšoaroa ka tlasa maemo a tšireletso a phahameng haholo (li-pilarization) tse tsamaeang ka kotloloho ho fumana li-krion tsa kristari tsa kristari tsa Crystalli, li-Arpictric tse phahameng.

Melemo e ikhethang ea Dictricric ea Pvdf le homognenino e bonts'a ts'ebetso ena e phahameng ea polymerline le Thermoelectric Boiketlo. Kamano e pakeng tsa Ferroelectric Phenomena ea PVDF, ho kenyelletsa le phaposi ea the piezoelerrity le Thermoelectric Sebopeho se phahameng sa ho etsa lintho tse ngata tse fumanoeng le se ratoang sa polycrytalline hammoho le setsebi se thata sa ho lahleheloa ke pvdf se etsa hore ho se khonehe ho fihlela pvdf e qhibilihe. Ka lehlakoreng le leng, Pvdf e ka qhibiliha habonolo ka mokhoa o sa bonahaleng ka seea-le-moea kapa mokhoa oa motlakase, 'me karolo ena e sebelisoa lits'ebetsong kapa khokahano. Ho se sebetse hantle ha mefuta e phahameng haholo Pvdf, ka ho etsa joalo ho eketsoa matla a ona a ho fana. Thepa ena e boetse e ikhethile har'a polyolefinin ea Polyolefinin, joalo ka ba bang ba polymer ba nyenyefatsang ha ba pepesetsoa ho nosetsoa matla a phahameng a matla.

(3) thepa ea lik'hemik'hale

Pvdf e boetse e na le thepa e ntle ea lik'hemik'hale ebile e hanyetsana le acid ea acidganic, ha e na metsoako le li-soltix tse phahameng le tse monko o monate. Leha ho le joalo, likepe tse matla, limines, li-Imines, esters le li-keines li ka baka PVDF ho ruruha, ho nolofatsa kapa esita le ho qhala ho latela maemo. Li-estene tse ling le li-Kenenes tse ling li ka sebelisoa e le li-solvel li qhala Pvdf. Sistimi e joalo e lumella koluoa e qhibilihang hore e qhibilihe ha mocheso o hlaha, o bakoang ka poso e ntle.

Pvdf ke e 'ngoe ea lipono tse' maloa tsa li-crystalline tse lumellanang le polymer tse ling, haholo-holo li-amin tsa Mindlic le methacrylic. Sebopeho sa kristale, thepa le ts'ebetso ea li-polymers tsena tse kopanngoeng li itšetlehile ka sebopeho le sebopeho sa polymer eo a neng a e kopaneng, hammoho le sebopeho sa Pvdf. Ka mohlala, Prolyl Polycrylate e fosahetse ka Pvdf, athe li-polyopyl Polyopryl PolyAcrylate 'me holile ha eona. Ha u khetha papali, ho bohlokoa ho ba le phello e matla ea bo-etsang monyetlali ea ho fumana khoebo le Pvdf, athe fluonyl fluovide e sa lumellaneng le Polyvinlidene Fluoride.