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Kufanana kwa Magwiridwe ndi Kufananiza Pakati pa PEI ndi PEEK

Polyetherimide, yotchedwa PEI mu Chingerezi, Polyetherimide, yokhala ndi maonekedwe a amber, ndi pulasitiki ya amorphous thermoplastic special engineering yomwe imayambitsa flexible ether bond (- Rmae Omi R -) mu mamolekyu olimba a polyimide autali.

PEI ndi PEEK1

Chithunzi cha PEI

PEI ndi PEEK2

Monga mtundu wa polyimide ya thermoplastic, PEI imatha kusintha kwambiri kutentha kwa mpweya komanso kukonza zovuta za polyimide poyambitsa mgwirizano wa etha (- Rmurmurr R -) mu tcheni chachikulu cha polima ndikusunga mawonekedwe a mphete ya polyimide.

Mawonekedwe a PEI

Ubwino:

Kuthamanga kwakukulu, pamwamba pa 110MPa.

Mphamvu yopindika kwambiri, pamwamba pa 150MPa.

Wabwino thermo-makina kubereka mphamvu, matenthedwe mapindikidwe kutentha kuposa kapena wofanana 200 ℃.

Kukana kwabwino kukwawa komanso kukana kutopa.

Utsi wabwino kwambiri komanso utsi wochepa.

Zabwino kwambiri dielectric ndi insulation katundu.

Kukhazikika kwabwino kwambiri, kocheperako kocheperako pakukulitsa kwamafuta.

High kutentha kukana, angagwiritsidwe ntchito pa 170 ℃ kwa nthawi yaitali.

Ikhoza kudutsa mu microwave.

Zoyipa:

Muli BPA (bisphenol A), yomwe imaletsa kugwiritsa ntchito zinthu zokhudzana ndi makanda.

Notch impact sensitivity.

Kukaniza kwa alkali ndikofala, makamaka pakutentha.

PEEK

PEI ndi PEEK3

Dzina la sayansi la PEEK polyether ether ketone ndi mtundu wa polima womwe uli ndi chomangira chimodzi cha ketone ndi zomangira ziwiri za ether mumaketani akulu. Ndizinthu zapadera za polima. PEEK ali ndi maonekedwe beige, processability wabwino, kutsetsereka ndi kuvala kukana, zabwino zokwawa kukana, zabwino kwambiri mankhwala kukana, kukana zabwino hydrolysis ndi nthunzi kutentha kwambiri, kutentha ma radiation, mkulu mapindikidwe kutentha kutentha ndi bwino mkati lawi retardancy.

PEEK idagwiritsidwa ntchito koyamba pazamlengalenga kuti isinthe aluminium, titaniyamu ndi zida zina zachitsulo kuti apange mbali zamkati ndi zakunja za ndege. Chifukwa PEEK ili ndi katundu wabwino kwambiri, imatha kusintha zinthu zakale monga zitsulo ndi zitsulo zadothi m'magawo ambiri apadera. Kukana kwake kutentha kwakukulu, kudzipaka mafuta, kukana kuvala ndi kukana kutopa kumapangitsa kuti ikhale imodzi mwa mapulasitiki otchuka kwambiri a uinjiniya.

Monga zida za polima za thermoplastic, mawonekedwe a PEI ndi ofanana ndi a PEEK, kapenanso kusinthidwa kwa PEEK. Tiyeni tione kusiyana kwa zinthu ziwirizi.

 

PEI

PEEK

Kuchulukana (g/cm3)

1.28

1.31

Mphamvu ya Tensile (MPa)

127

116

Flexural Strength (Mpa)

164

175

Kulimba kwa Mpira (MPa)

225

253

GTT(Glass-transition Temperature) (℃)

216

150

HDT (℃)

220

340

Kutentha kwanthawi yayitali (℃)

170

260

Kukaniza Kwambiri Pamwamba (Ω)

10 14

10 15

UL94 Flame Retardant

V0

V0

Kumwa madzi (%)

0.1

0.03

Poyerekeza ndi PEEK, ntchito yonse ya PEI imakhala yochititsa chidwi kwambiri, ndipo phindu lake lalikulu liri pamtengo wake, womwenso ndi chifukwa chachikulu chomwe zipangizo zina zopangira ndege zimasankhidwa ndi zipangizo zamagulu a PEI. Mtengo wokwanira wa magawo ake ndi wotsika kuposa wazitsulo, zopangira thermosetting ndi ma PEEK composites. Tiyenera kukumbukira kuti ngakhale mtengo wa PEI ndi wokwera kwambiri, kutentha kwake sikokwera kwambiri.

Mu zosungunulira za chlorinated, kusweka kwa nkhawa kumachitika mosavuta, ndipo kukana kwa zosungunulira za organic sikuli kwabwino ngati kwa theka-crystalline polima PEEK. Pokonza, ngakhale PEI itakhala ndi mapulasitiki aukadaulo amtundu wa thermoplastic, imafunika kutentha kosungunuka.


Nthawi yotumiza: 03-03-23