Chimiro uye kuumbwa kwekugadzirisa kwePolyether Ether Ketone peek

Polyether ETone (Peek) iSemi-Crystalline, Linear Aromic Imperies engineering purasitiki. Iyo moleky chimiro cheketani ine peek ine huwandu hukuru hwe benzene mhete, iyo yeCo bond inosemesa, iyo miviri yeBenzene inoridza mhete yakakura. Iyo CO Bond ndeyekunyorova, uye maviri eBenzenene mhete ane saiti hombe kupesana nekuchengetedza mari yekuparadzwa kubva pakuparadzwa, uye boka reokisijeni uye carbonyl group richagadzira p-π conjugation mhedzisiro neiyo benzane mhete. Aya maficha ezvemukati anopa peeka inotevera kuita kwakanaka.

Zvivakwa zve peek

Polyether Etone Ketone (Peek) ndewechanamatiro wetsiva weTemple Oldmers, tembiricha yeiyo 334 , Abraasion kupokana, kupokana nekupokana, redhiyo remagetsi rakanakisa remapurasitiki ese, denderedzwa reokisijeni rakakwira, rumbidzo yeutsi idiki uye isiri-ine chepfu. Muzhinji, zvinogona kukwana kutsiva simbi, alloy, ceramic uye zvimwe zvinhu.

1.mechanical zvivakwa

Peek inokambaira uye kupera simba kupokana kwakanaka. Girazi fiber rakasimbiswa uye kabhoni fiber rakasimbiswa negiredhi uye risingagumi giredhi rakafananidzwa nekunyama uye mwoluus yakakwira tembiricha, iyo simba uye modulus yekudzikira inonyanya kutaurwa. Peek muCrystalline Polymers munzvimbo yekunyungudika uye girazi rinoshandura tembiricha yakakwira kwazvo, muna 200'c kana kupfuura, asi ichiri kugona kuchengetedza simba rakakura uye modius. Mukuwedzera, peek ine yakaderera coefficient yekukakavara uye kupfeka pamusoro pehuremu hwakawanda hwekupisa uye kunogona kutsungirira chiitiko chakadzokororwa chemitoro yepamusoro.

Tafura 1-1 Zvivakwa zveGiredheni yeGrades yeVictrex peek

2.heat-inodzivirira kuita

Peek ine yakanaka kupisa kupesana. Refu-term shandisa tembiricha kusvika makumi maviri nemana. Thermogravimetric Kuyerwa kweeek Formar uremu huremu curve inoratidza kuti 400 ℃ Weight kurasikirwa kwe 0%; 500 × ye2,5%; 600 ℃ Kurasikirwa kwakawanda kwakawedzera kusvika 59%.

Asina basa uye girazi fiber kana carbon fiber yakasimbiswa penzvimbo, mushure me 1000h Heath Ageing, Simba reConstile harina kuderedzwa. Peek akanyura wire ekushora kurwisa kunoratidzwa muTafura 1-2, kazhinji iri pa280 ℃ Hupenyu hwebasa kweanopfuura 6000h.

Hunhu uhwu hunoiita izvo zvisarudzo zvekusarudzwa kweiyo thermicforming, vifield kukura, uye kune imwe nyika uye dzimwe nharaunda dzakakwirira dzekushanda.

3. Kupisa kwemvura zvinopisa

Kupokana nemvura inopisa uye mupfudze ndeimwe yezvinhu zvakakosha zvepeek. Muna 80 ℃ Mhando yemvura inopisa 800H, simba rayo rakajeka uye elongation pakureba zvisina kuchinjika. 200 ℃ Steam, simba rayo rakafanana uye chitarisiko hadzina kuchinja zvakanyanya, saka inogona kushandiswa muchikepe kwenguva yakareba. Pakati pevose mapurasitiki enginjiniya, peek ine yakakwirira steam kuramba.

4. Zvivakwa zvemagetsi

Hudzvinyiriri hwekupesana kwenzvimbo dzeshuwa dzinosvika 1016.cm.cm, uye iyo dielectric kurasikirwa kona tangent idiki pane yakakwira. Mukudziya kwakanyanya, kumanikidzwa kwepamusoro uye humbowo hwepamusoro uye dzimwe nharaunda dzinotyisa dzinogona kuchiramba zvakanaka zvemagetsi.

5. Kemical Resistance

Peek mukuwedzera kune yakatarisana neslfunding acid, anenge chero kemikari; Kumhepo yepamusoro, inogona kuchengeta yakanaka yemakemikari kugadzikana. Kuenzaniswa nePolycarbonate, yakagadziridzwa Polyphenylene Ether uye Polysulfone, kupokana kwemakemikari epezi pasi pekushushikana kwakanyanya (Tafura 1-3).

Nekudaro, kushushikana kupaza kazhinji kunoitika kana peek kunonyudzwa mune mamwe makemikari (semuenzaniso, acetone, nezvimwewo crystallinity isina kukwirira. Panyaya iyi, inogona kuwedzerwa (semuenzaniso, kuma200 degrees celsius kurapwa) kuti uvandudze kuchema kwayo uye kupokana nekumanikidza kushushikana.

6. murazvo unodzoreredza

Peek ane kuzvidzikisira, pasina kuwedzera kwemurazvo kudzoreredza 0.8 ~ 1.6 mm gobvu peek plame inodzosera kusvika kuUL94V ~ o level. Uwandu hweutsi hwakamanikidzwa hunyengeri hunosviba zvakare hushoma kwazvo, uye hauna magasi ane chepfu.

7. Radiation Resistance

Peek ine yakasimba radiation kuramba. Kupokana kwayo kune y-ray mune ese mainjiniya mapurasitiki ndiyo yakanyanya kunaka. Peek inotora dosi ye (1.0 ~ 1.2) ± 1077gy of y-mbambo mushure mekutanga kweBrittle; (0.l ~ 12) × 106gy of β-rays haina mhedzisiro pazviri.

8. Kuzvisimbisa

Peek ane huwandu hwakanyanya hwekuzvimiririra, hwakakodzera kuti zvidire zvinodiwa zvekupokana kwekupokana uye kupokana kwekupfeka-zvinopesana. Kunyanya ne kabhoni fiber, graphite, ptfe yakagadziridzwa peek inopfeka kurwisa yakanyanya kunaka.

9. Kuziva

Peek haina-ine chepfu, yakachengeteka uye isiri-allergic, physiologically inoenderana. Implant-giredhi peek muzvekunze zvakazvimirira kuyedza masangano akaenderana nezvinodiwa zveSo10993, akaitisa bvunzo yakazara yeiye. Mhedzisiro yacho inoratidza kuti iyo isingaenzaniswi giredhi pane yakanaka biocomputilation uye haina mhedzisiro.

Kuumbwa process yepeek

1. Kuumbwa hunhu

Peek Ilt viscossity pamusoro 380'c inova isinganyanyi kutsamira pakupisa, asi inotsamira pane shear kushushikana uye shear rate. Mune mamwe mazwi, zvinoshanda kuwedzera kumanikidza kuti vawane yakanyanya kunyungudusa fluidity panguva yekuumbwa.

2. jekiseni kuumbwa

Peek Kunyungudika Pfungwa yakakwira, kana ichienzaniswa neinjiniya yekunyungudika Usati waumbwa, zvinhu zvinowanzoda kuve zvisina kuoma, mamiriro ekunyorova kwazvo, ekunyorova kwemazana zana nemakumi mashanu, 3h.

Peek is a crystalline polymer, chete mukuumbwa kuti iite izere kuchema zvakakwana, kuti uwane zvigadzirwa zvine chekuita nekuita kwakanaka. Kana iyo mold tembiricha ye150 ~ 160 ℃, zvigadzirwa zvejekiji jekiseni ndee opaque uye yakakwirira mwero wekuchema, asi nzvimbo yepasi inogona kuve yakajeka uye yakaderera crystally; Ipo tembiricha yemukati ye180 'c, unogona kuwana mwero wakakwira wenyaya dzekrisituru. Kana maitiro ekuumbwa asingakwanise kushandiswa kumusoro kwemotokari tembiricha, chigadzirwa chinofanirwa kunge chiri chekurapa-kurapwa kuti uvandudze crystallinity. Post-kurapwa mamiriro kazhinji 200 ℃, 1 h kana 300 ℃, 2 min. Peek jekiseni kuumbwa inogona kushandiswa zvakajairika jekiseni kuumba michina. Asi mukuumbwa kwehukuru, hwakaomeswa-hwakakomberedzwa kana hwakaomarara chimiro chechigadzirwa, chinofanira kushandiswa mune yakakwirira chikamu chiyero uye chipfupi chikamu chekumusoro chikamu checlrew. Tafura 2-1 inobata iyo peek jekiseni kuumbwa maitiro.

3.Extusion kuumbwa

Peek inogona kugadzirira nekuwedzera kuumbwa kwefirimu, monofiling, pombi uye imwe zvigadzirwa zvine mwero. Uye polyimide firimu Kapton pakati, ndeyako c levels insulation zvinhu.Peek filt Tafura 2-2 inoronga zvivakwa zvepeek firimu.

Tafura 2-3 Inonyora iyo nzira yekugadzirisa yezvinhu zvehunyanzvi kuumbwa. Izvo zvinofanirwa kucherechedzwa kuti kana zvikamu zvakakura zvine mitezo zvakakura kupfuura zvevakakura kwazvo. Izvi zvinogona kuvandudzwa nekudziya kwakanyanya kunowedzera (300 ° C, maawa akati wandei).

4. Laminate kuumbwa uye Electrostatic Coating

Peek Sezvo Matrix Resin, uye girazi fiber kana kabhoni fiber, kana musanganiswa wechiitiko chamanyeka zvinogona kuburitsa zvinhu zvakanakisa. -4).

70% isina kuvimbika kabhoni fiber inosimbisa simba uye kuomarara, kusimba kwesimba na 2340mpa modulus kusvika ku130gpa. Parizvino hapana solicic solvent kunyungudika, saka haigone kubatanidzwa nemhinduro, asi inogona kushandiswa mukuumbwa kwemagetsi, kupesana, kupesana nekupesana nekudziya kwehupfumi hwakanaka yakanyarara simbi. Peek powder yakacheya zvigadzirwa zvigadzirwa.

5. Secondary kugadzirisa

Peek inogona kukwidziridzwa, ultrasonic Welding, plating, kudzora uye dzimwe nzira dzekugadzirisa kwechipiri. Zvakare iripo epoxy resin, polyurethane, silicone uye mamwe maanamatira ekubatanidza. Kuti uvandudze kushamwaridzana simba, pamusoro pezvikamu zvinogona kushandiswa pakureverera neACID.