Acrylonitrile butadiene styrene (ABS) (chemical formula (C8H8)x·(C4H6)y·(C3H3N)z) ndi polima wamba wa thermoplastic.Kutentha kwa magalasi ake ndi pafupifupi 105 °C (221 °F).ABS ndi amorphous motero ilibe malo osungunuka enieni.Polytetrafluoroethylene (PTFE) ndi fluoropolymer yopanga ya tetrafluoroethylene yomwe ili ndi ntchito zambiri.Dzina lodziwika bwino la PTFE-based formulas ndi polymer by Chemours.Chemours ndi gawo la DuPont Co., lomwe linapeza malowa mu 1938.
Zofunikira kwambiri zamakina a ABS ndi kukana komanso kulimba.Zosintha zosiyanasiyana zitha kupangidwa kuti zithandizire kukana kukhudzidwa, kulimba, komanso kukana kutentha.Kukana kwamphamvu kumatha kukulitsidwa powonjezera kuchuluka kwa polybutadiene pokhudzana ndi styrene komanso acrylonitrile, ngakhale izi zimayambitsa kusintha kwazinthu zina.Kulimbana ndi mphamvu sikutsika mofulumira pa kutentha kochepa.Kukhazikika pansi pa katundu kumakhala bwino kwambiri ndi katundu wochepa.Choncho, posintha kuchuluka kwa zigawo zake, ABS ikhoza kukonzedwa m'makalasi osiyanasiyana.Magulu awiri akuluakulu akhoza kukhala ABS ya extrusion ndi ABS yopangira jakisoni, kenako kukana kwakukulu komanso kwapakatikati.Nthawi zambiri ABS ingakhale ndi zinthu zothandiza mkati mwa kutentha kwapakati pa −20 mpaka 80 °C (−4 mpaka 176 °F).
PTFE ndi polima thermoplastic, amene ndi woyera olimba kutentha firiji, ndi kachulukidwe za 2200 makilogalamu/m3.Malinga ndi DuPont, malo ake osungunuka ndi 600 K (327 °C; 620 °F).Imasunga mphamvu zambiri, kulimba ndi kudzipaka paokha kutentha kwa 5 K (−268.15 °C; -450.67 °F), komanso kusinthasintha kwabwino pa kutentha pamwamba pa 194 K (−79 °C; -110 °F).PTFE imapindula ndi mphamvu zake kuchokera kumagulu a carbon-fluorine bond, monganso ma fluorocarbons onse.Mankhwala okhawo omwe amadziwika kuti amakhudza zomangira za carbon-fluorine ndi zitsulo zogwira ntchito kwambiri monga zitsulo za alkali, komanso kutentha kwambiri komanso zitsulo monga aluminiyamu ndi magnesium, ndi fluorinating agents monga xenon difluoride ndi cobalt (III) fluoride.
Kuyerekeza Acrylonitrile butadiene styrene (ABS) ndi Polymer PTFE/FEP Property Values
Ntchito Zofunika
Acrylonitrile butadiene styrene (ABS)
ipes ndi Zopangira;Matupi a valve, zida zogwirira ntchito.
polima PTFE / FEP : Cabling zothetsera; Non afewetsedwa mayendedwe; O-mphete; Zisindikizo; Capacitors; Semiconductor kupanga; High kutentha mbali magetsi; Gaskets; Vavu zigawo zikuluzikulu.
Zinthu Zakuthupi
Acrylonitrile butadiene styrene (ABS): Mphamvu zabwino kwambiri; Kupanga kwabwino komanso kukonza zinthu; Zokongola kwambiri; Kukana kwamankhwala kwabwino; Makina osavuta; Kutentha kochepa; Kusagwira kwa dzimbiri ndi abrasion; Kusagwirizana kocheperako.
Polima PTFE / FEP : Wabwino dielectric katundu; Inertness kwa mankhwala ambiri; High kutentha ndi kukana mankhwala; Otsika kwambiri coeffiecient wa kukangana; Wabwino cheza kukana; Zero chinyezi mayamwidwe; Mopanda kumva mphamvu pafupipafupi; Machinability.
Nthawi yotumiza: Jul-10-2016