Yintoni ekufuneka siye sazi ngePVDF (Polyvinylidene)

Igama le-PVDF linokuvakala elingaqhelekanga, kodwa linoluhlu olubanzi lwezicelo ebomini bethu.

Igama laso yi-polyvinylidene fluoride, kwaye ikwane-biases njenge-polyvinylide, i-polyvinylidene fluoride, i-polyvinylidene fluoride, i-polyvinylidene fluoride, njalo njalo. Ngokwembonakalo, ihlala ingumgubo omhlophe okanye igrani.

I-Poly (Vinylidene fluoride), ishwankathelwe njenge-PVDF, ikakhulu ibhekisele kwii-hinylidenes ze-vinyllidene okanye i-copolymers ye-vinyline ye-vinylline kunye ne-vinylline ye-vinyl may kwaye iphinde isebenze ngokubanzi, kwaye ikwanjalo I-Piezoeectrity, i-Deecrity kunye nezinye iipropathi ezikhethekileyo, ezinje nge-thermoectrity, njl. Ukuchasana kwemozulu kunye nokunganyangeki kwe-radiation, ikwanayo ne-Piezoeectrity, i-Deecrity, i-thermoecrity kunye nezinye izinto ezizodwa.

Isakhiwo sekhemikhali se-fluorocarbon sidityaniswe ne-fluorine-carbon bond, kwaye olu lwakhiwo luneepropathi ezixhonyiweyo zezona zinolwalamano oluzinzileyo nolona luhlaza nge-hydrogen. Ke ngoko, iingubo ze-fluorocarbon zinezixhobo ezizodwa zomzimba kunye neekhemikhali, zingapheleli nje ekuchaseni ukumelana nokunganyangekala kwempembelelo, kodwa nakwindawo enoburharha kakhulu kunye ne-charsh isebenze kakhulu kunye ne-ultraviolet.

Iipropathi zomzimba

I-PVDF isetyenziswa ikakhulu apho ukucoceka okugqithisileyo kuyadingeka khona, kunye nokuxhathisa kwimizila kunye nee-asidi kunye neziseko. I-PVDF inoxinano olusezantsi (1.78 g / cm) kunezinye ii-fluoropolys ezifana ne-ptfe.

I-PVDF inokusetyenziselwa ukuvelisa ityhubhu, iphepha, ifilimu, imigca, kunye neejakethi zentambo. Ingayinto enokubanjwa inaliti okanye i-weldided, kwaye isetyenziswe ngokubanzi kwikhemikhali, i-semiconductor, amayeza, kunye nemizi-mveliso yokukhusela, apho inokusetyenziswa khona, umzekelo, ukwenza ibhetri ye-ion-ion. Ukongeza, ingenziwa kwiifilimu ezinxibelelene-zeseli ezivaliweyo, eziya zisetyenziswa kwizicelo ze-aerospace.

Ingamabango e-PVDF yomgubo wePVDF, efana ne-kynar 500 pvdf kunye ne-hylar 5000 pvdf, inokusetyenziselwa ukunxiba okuphezulu. Ezi zigquma zineglosus ephezulu kakhulu kunye nokuzinza kwemibala. Ezi zigquma zinokufumaneka kwizakhiwo ezininzi ezidumileyo ezinje ngeTwin Powede Dunde kunye neTaipei 101. Ikwasetyenziswa kwizakhiwo zorhwebo kunye nophahla lwentsimbi olucekeceke.

Iifilimu ze-PVDF zinokusetyenziselwa ukwenza iiproteni ze-PVDF kwi-Western Blotting Assey ngenxa yobume bayo obungachanekanga kwi-Amino Acids.

Ngo-1969, abaphandi bafumanisa ukuba i-PVDF inesiphumo somhlaba oqinileyo: i-piezoelectric and filbertiment (okt, ifilimu yefilimu ye-6-7 PC / N, engaphezulu kwe-10 Inkulu kunexabiso elihambelanayo le-polymers efumaneka ngelo xesha.

I-PVDF inamaqondo obushushu eglasi In order to impart piezoelectric properties to the material, the material is usually mechanically stretched in the direction of the molecular chains and then polarized under tension.PVDF is available in a variety of solid phases: α phase (TGTG'), β phase (TTTT ), kunye γ Inqanaba (i-TTTGTTTTTGG '). Umahluko phakathi kwezi zigaba kukuba i-chain ye-cis (t) okanye i-trans (g.) i-pvdf iba yi-ferroelectric felmer xa i-Piezoelectries kunye nePieroelectries. Ezi ndawo ziyivumela ukuba isetyenziswe kwimveliso yezinzwa kunye neebhetri, ezinje ngezinye zeefilimu zekhamera zekhamera ezisebenzisa iPVDF.

Ngokungafaniyo nezinye izinto ze-piezoeleectoectoeritor, ezinjenge-PZT, i-PVDF inexabiso elibi le-D33. Ngokwemzimba, oku kuthetha ukuba ngelixa ezinye izinto zisanda kwicandelo lombane, iikhontrakthi zePVDF kunye ne-vice.

Iipropathi eziphambili

I-PVDF iveliswa ngokubanzi ngokunyanzeliswa kwe-Polymerization okanye i-Emulsion Polymerization ye-vinyllidene ye-voralide, i-equation ye-equation yile: ch₂ = cf₂ - (Ch₂cff₂) n.

Ngokweepropathi zomzimba, i-PVDF inexilongo le-1.76 ukuya kwi-1.79, indawo yokunyibilika ye-160 ° C ukuya kwi-170 ° 2 ° C, i-150 ° C, kwaye injalo Inyibilikiswa kwiinyibiliki ezizomeleleyo ezifana ne-dimthylacetamide.

I-PVDF ineempawu ezininzi ezingekahlawulwa. Okokuqala, kuxhathise okuhle ubushushu kwaye ugcine uzinzo nakubushushu obuphezulu. Okwesibini, uneenjongo ezintle zekhemikhali kwaye uyamelana noluhlu olubanzi lweekhemikhali. Ukuxhathisa imozulu, ukumelana ne-UV kunye nokuxhathisa kwimitha enkulu yamandla kakhulu. Ukongeza, i-PVDF inophawu oluphezulu, isidlo esiphakamileyo se-dielectring, kunye ne-angle ephezulu ye-dinglec.

Ngokwendlela yokuqhubekiswa, i-PVDF ilula, kwaye ixhaphakile, itreyini, kunye neendlela zokubumba zinokusetyenziswa.

Ngokwemigaqo yokubumba, ukomisa akufuneki kwiphakheji yoqobo; Iqondo lobushushu lihlala lilawulwa nge-180-230 ℃; Iqondo lobushushu elibunjiweyo lingama-60-90 ℃; Iqondo lokushisa liyi-180-265 ℃; Kwaye ubushushu bentloko yokufa yi-66-140 ℃.

Ukugcina, i-PVDF kufuneka igcinwe kwi-5-30 ℃ kwindawo ecocekileyo neyomileyo ukuthintela ukungcola njengothuli kunye nomswakama ekuxubeni. Izothutho kufuneka zinyangwe njengempahla engeyongozi, kunye nobushushu, ukufuma okanye ukuntywila okanye ubundlobongela kufuneka kuthintelwe ngexesha lenkqubo.

I-PVDF idlala indima ebalulekileyo kumasimi amaninzi

Kwintsimi yepetrochemical, ngenxa yokungaxhathisi bemichiza yayo efanelekileyo, ukwenziwa kwenkonzo epheleleyo kunye nokunganyangeki kwe-pumps, i-pumples, i-valines, iitanki kunye nokutshintshwa kwe-pipeds kwi-fleid Inkqubo yokuphatha izixhobo zepetrochemical.

I-PVDF ikwasetyenziswa kumasimi ombane kunye ne-elektroniki. Ngozinzo zeekhemikhali ezifanelekileyo kunye nepropathi yokufaka yombane, isetyenziswa ngokubanzi kumzi-mveliso we-semiconductor wokugcina kunye nokuhamba kweekhemikhali eziphezulu eziphezulu kwizixhobo ezihlangabezana nee-TOCS kunye neemfuno ezihlawulelwayo.

I-PVDF yenye yezona zinto ziphambili zengubo ye-fluorocarbon, ngoku ngoku kwisithandathu Ezi mpahla zisetyenziswa kwizikhululo zamandla, izikhululo zeenqwelo moya, iindlela eziphezulu, izakhiwo eziphakamileyo kunye nezinye iindawo ngenxa yokungaxhathisi bazo kwimozulu, ebavumela ukuba basetyenziswe ngaphandle kwexesha elide ngaphandle kokugcinwa.

Ukongeza, i-PVDF i-PVDF ikwazi ukudityaniswa kunye nokuguqulwa kwenye indawo. Umzekelo, izinto ezihlanganisiweyo ezifunyenwe ngokudityaniswa no-Abs Reiln ziye zasetyenziswa ngokubanzi ekuqaleni kwezakhiwo, iimoto zokuhombisa iimoto, izixhobo kunye namanye amasimi.

I-PVDF ikwanazo iipropathi ezikhethekileyo kunye nokusetyenziswa

Umzekelo, ine-Piezoeecturity, i-thermoecrity neminye imisebenzi, inokwenziwa kwiimilo ezintsonkothileyo zeenzwa, izinto zonyango. Kwindlela yokulandelelana kweProtein, i-PVDF Membrane yeyona ndlela ilungileyo ukuya kwi-nitrocellulose membrane, enokubopha iiproteri kwaye ihlule iziqwenga ezincinci zeprotein.

Kufuneka bacandwe nge-thethanol ye-anhnol ngaphambi kokusebenzisa ukwenza amaqela abiziweyo kumphezulu wabo, owenza ukuba babe lula ukubopha iiproteni. I-Tethanol-free i-Buffer inokusetyenziselwa ukudluliselwa kwe-pvdff ye-pvdf ebukhali.

Iindawo zesicelo

I-PVDF ihlala isetyenziswa njengejacket ye-subser yeingcingo zombane ngenxa yepropathi yayo ebalaseleyo efana ne-elasticity, ubunzima obuphantsi, ukumelana nobushushu, kunye nokuxhathisa ubushushu. I-wire encinci ye-30-gauge, edla ngokusetyenziswa kwimijikelezo ye-wire-oyile, kwaye iibhodi zesekethe eziprintiweyo zihlala zifakwa kwi-PVDF. Iintambo nge-PVDF i-PVDF idla ngokubizwa ngokuba [i-kynar wire "phantsi kwegama lokuthengisa lePVDF.

Ngenxa yePropathi yePiezoelectric, i-PVDF ihlala isetyenziswa kwimveliso ye-Tactilermer Ansor, i-gaugued ye-traugs ye-traugs, kunye ne-Translakhs elula.

I-PVDF ikwangumfundi osemgangathweni we-elecvisi ye-elektroniki yeebhetri zeLithium zeLithium-2-Pydlidone (i-sethdolidone (i-selicon, i-sithun, izixhobo ze-lithium esebenzayo njenge I-Chineo2, I-Limn2o4 okanye i-worpo4, kunye nokongezwa kwezinto ezifana ne-carbon emnyama okanye i-carbon nanofibers. Ukutyibilika emva koko kuthululelwa kumqokeleli weze-7 kwaye i-NMP ikhutshiwe ukuba yenze i-elektrode ye-elektrode okanye i-electrode.pvdf inokusetyenziswa kwesi sicelo ngenxa yokuba i-Intert ye-cams kwi-Cheshuyo kunye nokungasasebenzi kwaye ayiphenduli nge i-electrolyte okanye i-lithium.

Kwintsimi ye-biomedical, iifilimu zePVDF zihlala zisetyenziselwa ukulungisa, apho iiproteni zisebenza khona. Kungenxa yokuba i-PVDF ayichasanga ukulungiswa kwesolvenki, ifilimu esetyenziswa ngokulula inokuqulunqwa ngokulula kwaye iphinde ifumaneke ngokulula ukuze ifumane ezinye iiproteni.pvdf. Ubushushu bezinto ezibonakalayo kunye nokuxhathisa iikhemikhali kunye neeproteti zeproteni zeproteni zivumela ukuba zisetyenziswe njengobuyekezo lweesampulu ze-HLLC, ukuthintela izixhobo ezibizayo ukuba zenziwe ngamaxabiso amancinci yokuthatha inxaxheba kwezi zisampulu.

I-PVDF ikwasetyenziselwa ukwenza umgca wokuloba okhethekileyo wokuloba njengenye indlela ye-nylon yemvelo yemvelo. Umphezulu wayo onzima usenza ukuba ixhathise kakhulu kwi-abrasion evela kumazinyo ebukhali, kwaye ukuxinana kwayo okungapheliyo kusezantsi kune-NYLOLO, esenza ilayini ibonakale iliso lentlanzi. Kukwi-wibser ngaphezu kwe-NYLOLO, ivumela umgca ukuba ungene ngokukhawuleza kwiintlanzi.

I-PVDF yothulondolozo lube ngcono kuvavanyo lwemodyuli eguqukayo kuno-Semiconductors Piezorestive kwaye ube neengenelo kwindawo yokudityaniswa kwe-piezomic. Ngenxa yeendleko ezisezantsi kunye nokuhambelana okukhulu, oovimba abasebenzayo abasebenzisa i-PVDF kubalulekile ukuba kuphuhliswe uphuhliso lwexesha elizayo kwimpilo yolwakhiwo.

Intsimi yamandla amatsha ngoku yenye yezona ndlela zibaluleke kakhulu

Kwicandelo lezithuthi zamandla amatsha, i-pvdf (Polyvinylidene Fluoride) idlala indima ebalulekileyo.

Isebenza ikakhulu njengendawo elungileyo kunye ne-diaphragm yoimba. Ngokukhula okukhawulezayo kwentengiso yemoto yombane, imfuno yeebhetri zeLithium iyakhula ngokungxama.

I-PVDF iye yaba yenye yezinto eziphambili ezinokubakho kwi-Lithium Shink Catch Chain ngenxa yokungaxhathisi sekhemikhali egqwesileyo, i-insulli yokufakelwa kombane kunye nezinye iimpawu.

Njengo-anode binder, i-PVDF kunzima ukuyitshintshwa kwixesha elifutshane.

Ibhetri yeLithium ineemfuno eziphezulu kwintsebenzo ye-binder, ekufuneka ikwazi ukuthuthuzela i-electrolyte kunye nokuchithwa kwayo, ukungachithi, kwaye igcinwe imbi, kwaye kwangaxeshanye, kwangaxeshanye, Uzinzo lwayo olufanelekileyo kufuneka lube luhle, kwaye i-voltage ye-Doration kufuneka ibe ngaphezulu 4.5V.

Ngozinzo ezigqwesileyo zekhemikhali kunye nokuxhathisa i-corrosion, i-PVDF inokumelana ngokuphumelela kwe-polar ye-ofisirolyte, kwaye isetyenziswa kakhulu kwi-Lithium Bart Binder, enika i-90% okwangoku.

Ukwenzela ukuphucula amandla amandla, i-Lithium Binder kufuneka isetyenziswe kwinani elincinci kunye nefuthe elihle lokwenza. Ukuze kuqinisekiswe ukusebenza kakuhle, iBakala lebhetri kwi-PVDF ngokubanzi kufuneka ifumane ubunzima bemolekyuli ephezulu, ihlala ingaphezulu kwe-1.1 yezigidi, kwaye i-binder iyacelwa ukuba ibe nomxholo wamanzi aphantsi.

Ukongeza, ukuze kuqinisekiswe ukungqinelana kweebhetri ze-lithium-ion, abavelisi bebhetri bafuna inqanaba eliphezulu lokungasebenzi kwi-bvdf eyahlukileyo ye-PVDF.

Shwankathela

I-PVDF yinto enesiphumo seNtsebenzo esigqibeleleyo kunye nesicelo esibanzi. Ngenkqubela phambili eqhubekayo kunye nophuhliso lwesayensi kunye netekhnoloji, iindawo zalo zesicelo zinokwandiswa kwaye zikhule. Nangona kunjalo, kwinkqubo yokusetyenziswa, kubalulekile ukuba uqonde ngokupheleleyo iimpawu zayo kunye nomngcipheko onokubakho wokuqinisekisa umsebenzi wayo ngokukhuselekileyo nosebenzayo.