Chii chinonzi PEEK?

Polyether ether ketone (Poly-ether-ether-ketone, muchidimbu PEEK) imhando yezvinhu zvepolymer zvakakosha zvine mayuniti akadzokororwa ane ma ether bonds maviri uye ketone bond imwe chete muchimiro chikuru cheketani. Imhando yezvinhu zve polyether ketone. Ine hunhu hwe semi-knot crystal state, high tembiricha resistance, chemical corrosion resistance nezvimwewo.

Hunhu hwePEEK

Polyether ether ketone (PEEK) ndiyo yega mhando yezvinhu zvepolyaryl ether ketone (PAEK) zvinogona kugadzirwa zvakawanda. PEEK, sepurasitiki yakakosha yekugadzira, ine hunhu hwakanaka kwazvo.
Zvinhu zvakajairika zvePEEK:
(1) Kushanda: PEEK resin ine zvakanakira zvekupfava kwemvura pakupisa kwakanyanya uye kupisa kwakanyanya. Inogona kugadziriswa nekugadzira jekiseni, kugadzira extrusion, kugadzira, kugadzira blow molding, kutenderera kunyunguduka, kugadzira rotary uye kupfapfaidza nehupfu, nezvimwewo.

(2) Kudzivirira mwaranzi: kana paine kudziviswa kwakasimba kwemwaranzi, hunhu hwemakanika hunogona kuramba hwakakwana pasi pemwaranzi yeγ yakawanda, polystyrene inodzivirira mwaranzi yakawanda kupfuura polystyrene yakanakisa mu resin yakajairika, inogona kushandiswa sezvikamu zvinodzivirira mwaranzi mumidziyo yenyukireya.

(3) Chinodzivirira moto: PEEK ine chinodzima moto chega, kunyangwe isina chinodzivirira moto, kusvika pa UL standard 94V-0 grade.

(4) Kuramba kutsvedza: kana zvinhu zvichiramba zvichimanikidzwa, zvinozochinja zvachose kuita kutsvedza munguva pfupi. PEEK ndiyo yakanakisa thermoplastic resin inodzivirira kutsvedza.

(5) Kusimba uye kuomarara: ine simba guru rekudhonza, simba guru rekupwanya kushushikana, kunyanya kana paine kushushikana kwakasiyana, kuramba kuneta kwakanakisa, kwakafanana nezvinhu zve alloy.

(6) Kuzvizora (kudzivirira kupfeka): PEEK ine hunhu hwakanaka hwekutsvedza, yakakodzera zvinodiwa zvakanyanya zve low friction coefficient uye kushandiswa kwekudzivirira kupfeka; Kunyanya, PEEK yakagadziriswa ne carbon fiber, graphite uye PTFE ine hunhu hwakanaka hwekudzivirira kupfeka.

(7) Kudzivirira kupisa kwakanyanya: PEEK ine tembiricha yepamusoro yekuchinja kwegirazi (Tg=143℃) uye pokunyunguduka (Tm=334℃), tembiricha yayo yekuchinja kwekupisa kwemutoro inosvika 316℃, tembiricha yenguva refu yekushanda i260℃, tembiricha yekushanda pakarepo inogona kusvika 300℃, pasi petembiricha yepamusoro uye kumanikidzwa kwakanyanya kwenguva yakareba pasina kurasikirwa nezvinhu zvemuviri.

(8) Kuramba kushandiswa kwemvura inodziya: Zvigadzirwa zvePEEK zvinogona kuramba zvichishanda kwezviuru zvemaawa pasina kuora kwekushanda kuri pachena mukunyudzwa mumvura ine 260℃ kana kumanikidzwa kwakanyanya; PEEK ine simba rakanakisisa rekuramba kushandiswa kwemvura inodziya nemhepo inodziya pakati pemapurasitiki ese einjiniya.

(9) Haina chepfu: inogona kushandiswa mukuchenesa chikafu, mumidziyo yekurapa nedzimwe nzvimbo.

(10) Kuramba ngura: Kunze kwesulfuric acid yakasanganiswa, PEEK hainyungudike mune chero chinhu chinonyungudutsa uye ine acid yakasimba uye alkali, ine kugadzikana kwakanyanya kwemakemikari.

(11) Kudzivirira kuneta: PEEK ine simba rakanakisisa rekudzivirira kuneta pakati pezvinhu zvese zve thermoplastic resin.

Kushandiswa kwePEEK

Polyether ether ketone (PEEK) resin imhando yekushanda kwakanaka kwepurasitiki dzeinjiniya dzakakosha, ine mabhenefiti akawanda akakosha kana tichienzanisa nedzimwe mapurasitiki einjiniya akakosha, kuramba kupisa kwakanyanya, kushanda zvakanaka kwemuchina, kuzvizora, kuramba ngura kwemakemikari, kuramba murazvo, kuramba kubvisa, kuramba mwaranzi, kugadzikana kwekudzivirira, kuramba hydrolysis uye kugadzirisa zviri nyore, nezvimwewo, zvinoshandiswa zvakanyanya mukurapa.

Resin yePEEK inogona kutsungirira kusvika ku3000 autoclaving pa134°C, izvo zvinoita kuti ikodzere kugadzirwa kwemidziyo yekuvhiya neyemazino yakacheneswa zvakanyanya inoda kushandiswa kakawanda. PEEK haina chete mabhenefiti ehuremu hushoma, isingakuvadzi uye inodzivirira ngura, asiwo ine hunhu hwe elastic modulus yemapfupa e cortical emunhu, ayo anogona kusanganiswa nemuviri. Saka, kushandisa resin yePEEK panzvimbo pesimbi kugadzira mapfupa emunhu ndeimwe nzira yakakosha mune zvehutano.

PEEK yakatanga kushandiswa mukiriniki muna 1999. Kubva ipapo, vanhu vanopfuura mamiriyoni mashanuZvigadzirwa zvePEEKzvakaiswa muvanhu, zvichiita kuti ive ndiyo nzira yakanakisisa yekusanganisa musana. Mumakore achangopfuura, PEEK yave ichirumbidzwa se "chinhu chakanakira chizvarwa chinotevera chezvigadzirwa zvekurapa zvinogona kuiswa".

Ndeapi marudzi emaimplants anogadzirwa kubva kuPEEK?
（1）zvinotsiva mapfupa, maxillofacial bone implants
(2) kuvhiyiwa kwemusana, kusanganiswa kwemusana we intervertebral
（3）uye zvinotsiva mapfupa ehudyu, majoini
（4）zvishandiso zvemapfupa: ndiro dzakagadziriswa uye screws
（5）chinotsiva mazino CFR – PEEK – yakagadzirwa nemazino akaisirwa, mazino emazino, uye kuchengetedza midzi
(6) mukuvhiyiwa kwemwoyo, mapombi emwoyo nemavharuvhu

Ndeapi makambani pasi rose anogona kugadzira PEEK inoiswa kwenguva refu? Peek-optima inogadzirwa neInvibio, chikamu cheVictrex muUK. PEEK;

(1) Zvinhu zvinoiswa muPEEK zvinoiswa mumusika parizvino zvine mukana wekuti zvikwanise kushandiswa nevatengi vakawanda mumusika wepasi rose.
(2) Belgium Solvay yakatanga kushandisa PEEK yemhando ye zenIVa-PEEK muna 2009.
(3) Evonik wekuGermany akapinda mumusika wekuChina kutanga kwegore ra2014 nezita rechigadzirwa ichi: VESTAKEEP PEEK.
(4) Guangzhou Jusheng Medical Technology Co., LTD., iyo yega kambani inogadzira michina ine PEEK yepamusoro-soro muChina, yatanga chirongwa chePEEK JS-S1 chine zita rekuti NATUREGEN uye JS-S1 yepamusoro-soro.

Nhoroondo yePEEK

Nguva yekutanga yekukura kwembwa (1978-1992):

PEEK ipurasitiki yeinjiniya ine simba guru yakagadzirwa neICI muna 1978. ICI yakanyorera patent ndokuiita kuti ive nemaindasitiri, ine simba rekugadzira rinosvika matani chiuru pagore, iro rinonyanya kushandiswa muindasitiri yekudzivirira.

Kubudirira kweMonopoly uye Kuparara (1993-2004):

Victrex yakawana bhizinesi rePEEK kubva kuICI, ichiratidza kufambira mberi kwekugadzira zvinhu zvega, uye yakaramba ichiwedzera huwandu hwekugadzira. Muna 2003, kugona kwekugadzira kwegore negore kwakawedzera kusvika matani 2800. Mushure mezvo, zvigadzirwa zvakafanana zvakagadzirwa zvakatevedzana neDuPont, BASF, Mitsui Tosei Chemical Company yeJapan, neTelep yeUnited States. PEEK yakawedzera kubva pakushandiswa kwayo kwekutanga muchiuto kuenda kumashandisirwo emaindasitiri nekurapa.

Kwenguva yakareba PEEK yave ichinyorwa sezvinhu zvekushandisa pakuvharirwa kweChina nekurambidzwa neParis Coordinating Committee. Kuti ikwanise kuzadzisa zvinodiwa zvekudzivirira nyika nekusimudzira tekinoroji yepamusoro-soro, hurumende iyi yakaiisa mumapurojekiti makuru esainzi netekinoroji kubva kuPurani yechinomwe yemakore mashanu kusvika kuPurani yegumi yemakore mashanu uye Purani ye863 yekutsvaga. Vachitsigirwa zvakasimba nemaitiro eChina, timu yaPurofesa Wu Zhongwen yeJilin University yakazvimiririra yakagadzira tekinoroji yePEEK patent ine kodzero dzepfungwa dzakazvimirira uye yakavamba Jida High-tech Materials Co., LTD., iyo yakatanga kugadzirwa.

Danho Rekukura Kwakakwana (2005-ikozvino):

Muna 2005, Evonik akawana bhizinesi rePEEK reGarda muIndia, ukuwo Solvay akawana bhizinesi rePEEK. Muna 2009, Jinfa Technology Co., LTD., Panjin Zhongrun Special Plastic Co., Ltd. yeChina nedzimwe makambani dzakapinda mubasa iri, uye PEEK yakapinda muchikamu chekuvandudzwa kwakazara. Pamusoro pezvo, kuchinjwa kwetekinoroji yePEEK composite uye processing kuri kukura zvishoma nezvishoma, uye basa rekushandisa riri kuwedzerawo. Nekuda kwehuwandu hwakawanda hwevagadziri vane hunyanzvi mukugadzira PEEK pasi rese, mwero wemakwikwi emusika uchawedzera kupisa. Parizvino, Wiggs, Solvay naEvonik ndivo vagadziri vatatu vakuru vePEEK pasi rose.