I-DuPont iphuhlise itekhnoloji enelungelo elilodwa lomenzi wokudityaniswa kunye nokusetyenzwa kweereyini zogwebu lwe-fluoropolymer.Inkqubo ye-foam ibandakanya inaliti eqhubekayo yegesi efana ne-nitrogen ngqo kwi-extruder egcwele i-resin etyhidiweyo.Isikrufu se-extruder esiyilwe ngokukodwa sisetyenziswa ukwenza umxube werhasi yepolymer kunye nephakheji ye-nucleating ye-inert ekwiresin ukunceda ukukhuthaza ukukhula kweeseli.I-Foams ukuya kwi-60% ye-voids ibonakaliswe ngokusetyenziswa kwale nkqubo.
Izicelo zeMelt Probleable Perfluorinated Resins
I-FEP kunye ne-PFA ene-perfluorinated resins zine-viscosities ezinyibilikayo ezisezantsi ngokwaneleyo ukuba zisetyenzwe kwii-extruders ezinyibilikayo.Ukongeza, i-FEP kunye ne-PFA zikulungele kakuhle ukukhupha amagwebu ngelixa zigcina i-dielectric ephantsi engaguqukiyo kunye nezinto eziphantsi zokulahla, zombini ziyimfuneko kwizibini ezijijekileyo kunye ne-coaxial cable insulations.
Iintambo zedatha zisetyenziselwa ukuhanjiswa kweempawu ze-elektroniki kwiisethingi ezahlukeneyo kunye nezicelo.Iimpawu eziphambili zombane ezifunekayo ezi ntambo ziquka i-dielectric constant constant kunye ne-low dissipation factor.Ezi mpawu zinokwandiswa ngokufaka amagwebu kwi-insulation.Ngokuxhomekeke kwi-resin esetyenzisiweyo, iintambo ezine-insulation enegwebu zivumela i-cable miniaturization, ukunciphisa ubunzima bemveliso yokugqibela, kunye nokuhanjiswa kweempawu zombane ezicacileyo ezikumgangatho ophezulu kwizantya zomqondiso ophezulu.
Iintambo ezinogwebu ezenziwe kwi-DuPont fluoropolymer resins ziye zaziwa kakhulu ekwenzeni ikhompyuter kunye nokufakwa kweenkqubo zenethiwekhi.Iintambo ezenziwe nge-FEP okanye i-PFA zinomlilo ophantsi kunye neempawu zomsi ophantsi.Ezi ntambo ziyakwazi ukuhanjiswa kwiiplenum kunye neminye imibhobho yokuphatha umoya, ukunciphisa imfuneko yofakelo olunexabiso eliphezulu lombhobho wombane.
Ubume kunye neePropati zeFluoropolymers
Ukufunyaniswa kwe-PTFE yi-DuPont kwenzeka ngo-1930, kodwa ngelo xesha, i-resin entsha ene-perfluorinated ayikwazanga ukunyibilika.Uphando olongezelelweyo olwenziwe yiDuPont kuhlengahlengiso loyilo lwepolymer lukhokelele kuphuhliso lothotho lweefluoropolymers ezinyibilikayo ezinyibilikayo ezifana neFEP, PFA, kunye neETFE, yomeleza iDuPont njengenkokeli yehlabathi kuphando lwefluoropolymer.
Ukukwazi ukunyibilika ukukhupha ezi polymers, zidibaniswe neempawu ezifana ne-dielectric ephantsi rhoqo kunye nokutsha okuphantsi okwenziwe i-FEP kunye ne-PFA ifaneleka kakuhle kwizicelo zengcingo kunye nentambo.
Iimpawu eziqhelekileyo zoMzimba ze-PTFE, PFA, FEP, kunye ne-ETFE
Ixesha lokuposa: Dec-01-2017