IiPropati zePolymer-PCTFE & ETFE & ECTFE Properties

I-PCTFE yipolymer ene-semicrystalline ene-helical polymer chain kunye ne-pseudohexagonal crystal.I-PVDF kunye ne-ETFE ye-equimolar i-isomers kodwa le yokugqibela inomlinganiselo ophezulu wokunyibilika kunye nelahleko ephantsi ye-dielectric kuneyangaphambili.Efana ne-ETFE, i-ECTFE terpolymers (i-termonomers efanayo) inomatshini ongcono kunye ne-abrasion kunye nokuchasana kwe-radiation kune-PTFE kunye nezinye i-perfluoropolymers.

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Iipropati zePCTFE

I-PCTFE yipolymer ene-semicrystalline ene-helical polymer chain kunye ne-pseudohexagonal crystal.Ukukhula kwekristale kungqukuva kwaye kuqulethwe ngamatyathanga asongiweyo.Ubungakanani obukhulu beklorini bunyanzelisa i-recrystallization emva kokunyibilika ngexesha lokucubungula.Le resin ineempawu ezintle kumaqondo okushisa e-cryogenic ngokubhekiselele kwiiplastiki ngokubanzi, nangona zingaphantsi kwezinye i-fluoropolymers ngaphandle kwe-PVDF.

I-PCTFE ineempawu ezikhethekileyo zomqobo kunye nokumelana neekhemikhali okugqwesileyo.Ihlaselwa ngamanani ezinto eziphilayo.

I-PCTFE inozinzo oluphantsi lwe-thermal kwaye iyancipha ekufikeleleni kwindawo yayo yokunyibilika, efuna ukunakekelwa okukhethekileyo ngexesha lokucubungula.

Iipropati ze-ETFE

I-PVDF kunye ne-ETFE ye-equimolar i-isomers kodwa le yokugqibela ine-melting point ephezulu kunye nokulahlekelwa kwe-dielectric ephantsi kuneyokuqala.I-ETFE idibanisa kwiiseli zeyunithi ezikholelwa ukuba ziyi-orthorhombic okanye i-monoclinic.I-molecular conformation ye-ETFE yi-zigzag eyandisiweyo.Le polymer inyibilika kwezinye ii-esters ezibilayo ngaphezulu kwe-230 C, ngaloo ndlela ivumela ukumiselwa kobunzima bemolekyuli (ubunzima-umndilili) ngokusasaza ukukhanya.I-ETFE ineenguqu ezininzi, ukuphumla kwe-alpha kwi-110 C (ukutshintsha ukuya kwi-135 C kwi-crystallinity ephezulu), i-beta kwi-25 C, kunye ne-gamma yokuphumla kwi-120 C.

I-ETFE terpolymers ineepropathi ezilungileyo zoomatshini ezibandakanya ukunyanzeliswa kunye nokunqanda ukuchasana kunye nokunyuka okuphantsi kune-perfluoropolymers.I-ETFE ixhathisa ngakumbi kwi-radiation kune-perfluoropolymers (ichaphazeleka ngokuthobekileyo ukuya kwi-20 Mrad) kwaye inokudityaniswa ngemitha efana ne-electron beam.I-Crosslinking isetyenziselwa ukuqinisa ukuxhatshazwa kwe-cut-through ye-ETFE wire insulation.

I-ETFE ine-dielectric constant ye-2.6e3.4 kunye ne-dissipation factor ye-0.0006e0.010 njengoko i-frequency inyuka ukusuka kwi-102 ukuya kwi-1010 Hz.

I-ETFE terpolymers ixhathisa ukunyanzeliswa kwengcinezelo kunye nokuhlaselwa kweekhemikhali ngamachiza amaninzi.I-acids oxidizing enamandla, i-sulfonic acids ebilayo egxininisiweyo, kunye neziseko eziphilayo (i-amines) zihlasela i-ETFE kunye nayiphi na imichiza echaphazela i-PTFE, PFA, kunye ne-FEP.

Iipropati ze-ECTFE

I-ECTFE i-semicrystalline (50e60%) kwaye iyancibilika kwi-240 C. Ine-alpha yokuphumla kwi-140 C, i-beta kwi-90 C, kunye ne-gamma yokuphumla kwi-65 C.Iyunithi yeseli yekristale ye-ECTFE inehexagonal.

Ngokufana ne-ETFE, ii-terpolymers ze-ECTFE (i-termonomers ezifanayo) zingcono koomatshini kunye ne-abrasion kunye nokumelana nokukhanya kwe-radiation kune-PTFE kunye nezinye i-perfluoropolymers.

I-Dielectric constant ye-ECTFE yi-2.5e2.6, kwaye izimeleyo kwiqondo lokushisa kunye nokuphindaphinda.I-Disipation factor yi-0.02 kwaye inkulu kakhulu kune-ETFE's.

I-ECTFE iyaxhathisa kwiikhemikhali ezininzi ngaphandle kwe-polar eshushu kunye nezinyibilikisi ezineklorini.Ayigxininisi inyibiliko yecrack kuzo naziphi na izinyibilikisi.I-ECTFE ineempawu ezingcono zokuthintelwa kwi-SO2, Cl2, HCl, kunye namanzi kune-FEP kunye ne-PVDF.