Polyetherimide, e bitsoang PEI ka Senyesemane, Polyetherimide, e nang le ponahalo ea amber, ke mofuta oa polasetiki e khethehileng ea boenjiniere ea amorphous thermoplastic e hlahisang bond e tenyetsehang ea ether (- Rmae Omi R -) ho limolek'hule tse thata tsa polyimide tse telele.
Sebopeho sa PEI
Joalo ka mofuta oa thermoplastic polyimide, PEI e ka ntlafatsa haholo thermoplasticity e futsanehileng le ts'ebetso e thata ea polyimide ka ho kenya bond ea ether (- Rmurmurr R -) ka har'a ketane e kholo ea polymer ha e ntse e boloka sebopeho sa reng ea polyimide.
Litšobotsi tsa PEI
Melemo:
Matla a phahameng a phahameng, ka holimo ho 110MPa.
Matla a holimo a kobehang, ka holimo ho 150MPa.
Mocheso o motle oa ho jara thermo-mechanical, mocheso oa mocheso o moholo ho feta kapa o lekana le 200 ℃.
Khanyetso e ntle ea creep le ho hanyetsa mokhathala.
Ho lieha ho hoholo ha lelakabe le mosi o tlase.
Lintho tse ntle tsa dielectric le insulation.
Botsitso bo botle ba sebopeho, coefficient e tlase ea katoloso ea mocheso.
Ho hanyetsa mocheso o phahameng, ho ka sebelisoa ho 170 ℃ nako e telele.
E ka fetisoa ka microwaves.
Mefokolo:
E na le BPA (bisphenol A), e fokotsang tšebeliso ea eona lihlahisoa tse amanang le masea.
Notch impact sensitivity.
Ho hanyetsa alkali ho tloaelehile, haholo-holo tlas'a maemo a futhumatsang.
PEKE
Lebitso la saense la PEEK polyether ether ketone ke mofuta oa polymer e nang le tlamo e le 'ngoe ea ketone le li-bond tse peli tsa ether mohahong o moholo oa ketane. Ke thepa e khethehileng ea polymer. PEEK e na le ponahalo ea beige, ts'ebetso e ntle ea ts'ebetso, ho thella le ho apara ho hanyetsa, khanyetso e ntle ea creep, khanyetso e ntle haholo ea lik'hemik'hale, ho hanyetsa hantle ha hydrolysis le mouoane o chesang haholo, mahlaseli a mocheso o phahameng, mocheso o phahameng oa mocheso le mocheso o motle oa ka hare.
PEEK e ile ea sebelisoa ka lekhetlo la pele tšimong ea sefofane ho nkela aluminium, titanium le lisebelisoa tse ling tsa tšepe sebaka sa ho etsa likarolo tse ka hare le tse ka ntle tsa sefofane. Hobane PEEK e na le thepa e felletseng e felletseng, e ka nka sebaka sa lisebelisoa tsa setso joalo ka tšepe le lirafshoa masimong a mangata a khethehileng. Ho hanyetsa mocheso oa eona o phahameng, ho itšehla thajana, ho hanyetsa le ho khathala ho etsa hore e be e 'ngoe ea lipolasetiki tsa boenjiniere tse sebetsang hantle ka ho fetisisa.
Joaloka thepa ea thermoplastic polymer, litšobotsi tsa PEI li tšoana le tsa PEEK, kapa esita le ho nkela PEEK sebaka. Ha re shebeng phapang pakeng tsa tsena tse peli.
| PEI | PEKE | |
| Boima ba 'mele (g/cm3) | 1.28 | 1.31 |
| Tensile Strength (MPa) | 127 | 116 |
| Flexural Strength (Mpa) | 164 | 175 |
| Bothata ba ho Ikamahanya le Bolo (MPa) | 225 | 253 |
| GTT(Glass-transition Temperature) (℃) | 216 | 150 |
| HDT (℃) | 220 | 340 |
| Mocheso oa nako e telele oa ho sebetsa (℃) | 170 | 260 |
| Ho Khanyetso ka ho Khethehileng ha Bokaholimo (Ω) | 10 14 | 10 15 |
| UL94 Flame Retardant | V0 | V0 |
| Monyo oa Metsi (%) | 0.1 | 0.03 |
Ha ho bapisoa le PEEK, ts'ebetso e felletseng ea PEI e hohela mahlo, 'me molemo oa eona o moholo o itšetlehile ka litšenyehelo, e leng lebaka le ka sehloohong le etsang hore lisebelisoa tse ling tsa moralo oa lifofane li khethoe ke lisebelisoa tse kopantsoeng tsa PEI. Litsenyehelo tse akaretsang tsa likarolo tsa eona li tlase ho feta tsa tšepe, li-composites tsa thermosetting le li-composites tsa PEEK. Hoa lokela ho hlokomeloa hore le hoja ts'ebetso ea litšenyehelo tsa PEI e batla e phahame, ho hanyetsa mocheso oa eona ha ho phahame haholo.
Ka li-solvents tse nang le chlorine, ho phunyeha ha khatello ea kelello ho etsahala habonolo, 'me ho hanyetsa metsoako ea lintho tse phelang ha ho molemo joaloka ea semi-crystalline polymer PEEK. Ha e ntse e sebetsa, leha PEI e na le ts'ebetso ea lipolasetiki tsa boenjiniere tsa thermoplastic, e hloka mocheso o phahameng oa ho qhibiliha.
Nako ea poso: 03-03-23