Iimpawu kunye nokusetyenziswa kwePolymimide (PI)

November 04, 2024

I-Polymimide (Polymimide, ifinyezwe njenge-PI) ibhekisele kwiklasi ye-Polymers equlathe iringi yokuNikeza (-) kwikhonkco eliphambili, yenye yezona zinto zibalulekileyo ze-orlymer. Ukunyangwa kobushushu obuphezulu okungaphezulu kwe-400 ° C, ukusetyenziswa kwexesha elide kudidi lobushushu -200 ° 300 ° C, inqaku lendawo yokufakelwa, i-103 Hz Delectric Moved 4.004 ~ 0.007, yi-F ukuya kwi-H.

HONY Plastic can provide super high temperature resistant special engineering plastics - polyimide profiles, such as rods, sheets, pipes and injection molding, machining finished products according to the customer's specific needs, with temperature resistance grades of 220 ℃, 260 ℃, 300 ℃, 350 ℃ Nangaphezulu ngokulandelelana. I-Polymimide inokudityaniswa nge-molybdenum ilahleko, igrafu, i-carbon fiber, i-polytetrafluorororootheorookenene, enokutshintsha kakhulu.

I-Polymimide PI inomsindo wobushushu obuphezulu nophantsi (-269 ~ 400 ~), ukunganyangeki okuphezulu, ukuxhathisa imithambo, ukunyangwa kwemitha, ukunyanzela kweminyikisi, ukuzicima , ityhefu, njl. njl. engafakwanga ngamanye amaplanga obukhethekileyo obukhethekileyo. Intsebenzo yayo ngokubanzi ayinakuthelekiswa nako kwenye ikhethekileyo.

Iintlobo ngeentlobo zeentlobo ze-Polymimide yeentlobo eziphambili zeHomophthalic Polydimide, i-Ether Anhhdride, i-Polyomide inyanzelisa kwaye i-annehyride ye-annehyride. Phakathi kwabo, i-homollymer Polymimide ngummeli we-polycondinides polycomide. Nangona kunjalo, ayifanelanga i-insoble kwaye iyathandeka, kwaye kunzima ukuyiqhubela phambili. Ngokwesiqhelo unokusebenzisa indlela ye-powrtergergy yendlela yokubumba i-powder powder icinezelwe iimveliso zeplastiki, okanye ukusetyenziswa kwendlela yokungena okanye indlela yokuphosa kwifilimu. Umzekelo, ilaphu leglasi elifakwe isisombululo se-Polyamide I-Acid-icinezelwe kwi-Sheet. Ngokwahlukileyo koko, uhlobo lwe-anhydride piltimide polylimide njenge-polysimide ye-polysimide, ukubumba ukusebenza kuphucuka kakhulu. Ayinakukwazi ukubumba kuphela, kodwa kunye nenaliti, ukugxothwa kunye nezinye iindlela zokubumba, zinokubanjiswa kwaye zilahlekelwa yifilimu.

Ukwahlulahlula

I-Polycondencencence

Uhlobo lwe-promatic polyotides luveliswa ngokuphendula i-Damines ye-Aromatic Deamidic Deanhydrides, i-Auromatic Toracalboxyylic Acid, okanye i-abramaxyboxyboxyby ye-Acid ye-Acid ye-Acid. Kuba i-synthelis ye-polylimide ye-polycomide yenziwa kwindawo ephezulu ye-prools poral efana ne-Dimethylforlide, i-N-Methylpyrpylpide, le ngqiqweni ye-Prooldy. Ngexesha lokulungiselela kwe-Perverrere, kwaye kukho ii-volatales ezikhutshwa ngexesha lokuhamba kwe-polyamides, eyenza ngokulula iipores kwiimveliso ezihlanganisiweyo. Oku kwenza ukuba kube lula ukuvelisa iipores kwiimveliso ezihlanganisiweyo, kwaye kunzima ukufumana izixhobo eziphezulu eziphezulu ngaphandle kwe-pores. Ke ngoko, i-polycondetions Polyconide isetyenziswe kancinci njenge-matrix ye-tirsite yezixhobo, ikakhulu isetyenziselwa ukwenza iifilimu zepolimide kunye neengubo.

I-polymerization

Njengoko i-polycondetions Polycondoridetion Polyconide ineempawu eziluncedo ezichazwe apha ngasentla, ukuze zoyisa ezi ntsilelo, ziye zaqulunqa i-polymerization pollimimide ye-polymeride. Eyona nto iphambili esetyenziswe ngokubanzi yimibala yePolybimaleismmaleismastide kunye ne-polybonene-esekwe kwi-polyonene. Ngokwesiqhelo ezi zinto zisezantsi ze-moleculas ephantsi kwe-moleculades enamaqela angenasiphelo eziphelweni, kwaye emva koko i-polymermed ngamaqela angenasiphelo xa isetyenziswa.

(1) Polybimaleimedide

I-Polybimalasime yenziwa yi-Polycondinition ye-AnnehyDride ye-Anhhydride kunye neDiamine ye-Aromamine. Ithelekiswa ne-polyomide, intsebenzo ayilunganga, kodwa inkqubo ye-synthesis ilula, isebenza emva kweposi, indleko eziphantsi, zinokwenziwa ngokulula kwiimveliso ezahlukeneyo ezihlanganisiweyo. Kodwa izixhobo eziphilisiweyo zibukhali ngakumbi.

(2) i-buck

Enye yezona zinto zibalulekileyo yiklasi ye-PMR (ye-intshi polymerization ye-Monomer Reacys, i-monomer Reactisar kwi-Pelymerization) uhlobo lwe-Polymidide yeZiko loPhando lwe-NASA Lewis. I-PMR-Chwether ye-Polylimide ye-Polylimide yindibaniselwano ye-Aromatic Teamacyboxy ye-Acid Daykyl Ests, i-Aromadines Damines kunye ne-5-INarbonweyike-2, 3-Damines kunye I-5-INarbone-2, 3-dicarboxylicy acid acid monoalkyl. I-3-dicarboxyyyy ye-acid acid efana ne-alkyl malunga nee-acidsybyy zebhokisi ze-5-nenforneylic acid ichithwe kwi-alkyl yotywala (umzekelo, i-methanol) ukuvelisa isisombululo esinako isetyenziswe ngqo kwiintsinga ezingenamsebenzi.

I-subclalves

I-polyoimenis inokwahlulwa yangamacandelo amane: iHomophelekile pi, i-pi, i-Polyamide-Imide (Pai) kunye nePolyetherimilide (Pei).

Ngokwendlela yokuguqulwa, i-polyoimide ineendlela ezahlukeneyo. Ngokuphuculwa kotshintsho, iintsinga zeglasi, iifibler ze-boron, i-carbon fibers kunye ne-whisters zentsimbi zinokongezwa. Oku komeleze kuncitshiswe ngokufanelekileyo kunokunciphisa ukulandelelana kokwandiswa kwe-pollilomide, kuphucula amandla ayo, ngelixa kuncitshiswa iindleko. Umzekelo, ekwenzeni izinto eziphezulu zesakhiwo esiphezulu, emva kokuphuculwa kwePolylimided Polymimide kunokumelana nemithwalo enkulu.

Utshintsho lweFlilick, kwelinye icala, lusebenzisa iifilimu ze-Inorganic, igraftite, i-molybdenum ilahlekile, okanye i-polytenum ilahlekile, okanye i-polytetrofluoroflene njengeefilimu, ezivelisa iindleko. Igolide edibeneyo ikwayindlela ebalulekileyo yotshintsho, i-polyomide inokudityaniswa ne-Epoxy i-Epoxy, Polytetrafluorofloothylene kunye ne-polyeether ethe thetone, njl.

Intsebenzo

1, Yonke i-iromatic Polymidide yahlalutywa ngohlalutyo lwe-thermografic, ukuqala kobushushu bayo, i-500 ℃. I-Polyomide idityaniswe yi-Homophthalic Acid Dianhydride kunye ne-P-Phenyledine, amaqondo obushushu e-thermal ye-thermal ye-600 ℃, yeyona polimers ephantsi kozinzo oluphezulu lohlobo.

2, I-Polymimide inokumelana namaqondo obushushu asezantsi kakhulu, anje -269 ℃ kwi-helium engamanzi ayiyi kuba brittle.

3, I-Polymimide ineepropathi ezigqwesileyo ze-Tin, amandla e-thensiless yeplastiki engaphezulu kwe-100MPA, i-homobenzene-uhlobo lwe-polyimide (kapton) ngaphezulu kwe-170MPA, i-TPI) i-261kJ / m2. kunye ne-biphenyne-uhlobo lwe-polyomide (i-plailex s) ifikelela kwi-400MPA. njengeplastiki yobunjineli. Imodyuli ye-elaistity ihlala ingama-3-4gpa, ifayibha inokuthi ifikelela kwi-200gpa, ngokutsho kwe-theorecials, i-bebine ttoracyxyboxlic acid i-riandpa ye-fibers ukuya kuthi ga kwi-500g ye-fiber kuphela kwi-fiber yekhabhoni.

4, Ezinye zeentlobo-ntlobo ze-polylimide kwiinyibilikisi ze-organic, i-dilute acid azichanekanga kwi-hydrolysis, oku kubonakala ngathi kukunganyangeki kwe-polymes, i-polymes enkulu, Oko kukuthi, i-alkaline hydrolysis inokusetyenziselwa ukufumana izinto ezingafunekiyo, ezinje nge-dianhydride kunye ne-diamine, ifilimu yokubuyisela kwimeko yesiqhelo ukuya kuthi ga kwi-80% -90%. Guqula isakhiwo sinokufumana i-Hydrolysiess, enje nge-120 ℃, 500 iiyure zokubila.

5, I-Polymimide inombala obanzi, ngokomahluko okwahlukileyo, ezinye iintlobo ziphantse zanyibilika kuzo zonke izinyibilikisi, ezinjengeTetraratone, i-chlotone, i-chhanol.

6, Ukulandelela ukwanda kwe-Polymidide kwi-2 × 10-3 × 10-5 / ℃, i-Thertolik I-Tolymimide 3 × 10-5 / ℃, ℃, iindidis ukuya kuthi ga kwi-10- I-7 / ℃.

7, I-Polymimide ichasileyo kwi-irradiation, ifilimu yayo kwi-5 × 109radi ye-elektroni yokugcina i-elektroni ye-90%.

8, I-Polymimide ineepropathi ezintle zokulala, iDeecture ihleli i-3.4 okanye intshayelelo ye-fluorine, okanye ubungakanani be-danotorine, okanye ubungakanani be-nanometer osasazeke kwi-Polylimide, iDolector ihlala incitshisiwe ibe malunga ne-2,5. I-Diecritric Laked ye-10-3, amandla kaDeectric of 100-300kv / mm, ukunyangwa ivolumu ye-1017º-CM. Ezi ndawo zikuluhlu olubanzi lwamaqondo obushushu kunye noluhlu lokuhamba rhoqo lusenokugcinwa kwinqanaba eliphezulu.

9, I-Polymimide yiPollmer yokuziphakamisa, ireyithi yomsi ephantsi.

10, Polymimide kwi-vacuum ephezulu kakhulu phantsi kokuphuma kancinci.

11, Polymimide ongona eyityhefu, inokusetyenziselwa ukwenza itafile kunye nezixhobo zonyango, kwaye ikwazi ukumelana namawaka amawaka. Abanye be-Polymimide banako ukukholisa i-biomatide, umzekelo, kuvavanyo lwegazi olungahambelaniyo, kwi-vitrolycity yovavanyo lwe-vitrototocity lobungozi.