Mohala oa ho ntša polasetiki: Lipolasitiki tsa boenjiniere tsa Polyphenylene ether —–PPO ea lipolasitiki tse hlano tse holimo tsa boenjiniere

Polyphenylene ether (PPO) hape ke e 'ngoe ea li-tiger tse hlano tsa polasetiki ea boenjiniere bo akaretsang. E na le melemo ea ho tiea haholo, ho hanyetsa mocheso o phahameng, ho se chese, matla a phahameng le thepa e ntle ea motlakase. Tahlehelo ea kamehla ea dielectric le dielectric ea PPO ke e 'ngoe ea tse nyane ka ho fetisisa polasetiking ea boenjiniere 'me ha e amehe haholo ke mocheso le mongobo.
E sebelisoang haholo ke tlhahiso ea 2,6-dimethylphenol ea polyphenylene ether, e na le ts'ebetso e ntle ka kakaretso, tšobotsi ea bohlokoa ka ho fetisisa ke tlas'a mojaro oa nako e telele, e na le botsitso bo botle ba litekanyo le ho kenya motlakase ka mokhoa o ikhethang, tšebeliso ea mocheso o fapaneng, e ka ba ka har'a -127 ~ 121 ℃ ea tšebeliso ea nako e telele. E na le khanyetso e ikhethang ho metsi le mouoane, 'me lihlahisoa li na le matla a holimo a ho tsikinyeha, matla a tšusumetso le khanyetso ea ho thekesela. Ho feta moo, ho na le khanyetso e ntle ea ho robeha le thepa ea motlakase.

Ts'ebetso ea PPO ea I

Ts'ebetso ea PPO ho ea ho enteng, extrusion, ho bopa, empa hape le foam, polasetiki e fokang, fiber ea khalase e matlafalitsoeng, electroplating, vacuum covering, khatiso, machining le fusion welding. ppo e ka sebelisoa hape, hangata e sebelisoa hape ka makhetlo a 3, ts'ebetso ea eona ha e fokotsehe haholo. ho qhibilihisa ha ppo ho fokola, mathata a ts'ebetso le ho bopa, boholo ba lits'ebetso tse sebetsang bakeng sa ppo e fetotsoeng.
Se latelang ke selelekela sa ts'ebetso ea ho enta ka ente ea PPO.

1. Thepa ea ho baka ea PPO
PPO ke polymer e seng kristale, ho monya metsi ho tlase haholo, empa mongobo o tla etsa hore bokaholimo ba sehlahisoa bo be le liphoso tse kang silevera, lipululana, ka lebaka lena, thepa e tala e ka beoa ka ontong 80 ~ 1OO ℃, e omelle lihora tse 1-2 kamora ho sebelisoa.

2. Khetho ea mochini oa ho enta ka ente
Bakeng sa ho qhibiliha ha PPO ho lokela ho sebelisoa mochini oa ho etsa li-screw ente, nozzle e sebelisang mofuta o otlolohileng e ntle, lesoba ke 3-6mm. Phallo e kholo ea hlobo e lokela ho sebelisoa taper e kholoanyane kapa ho sebelisoa hook ea thepa ea ho hula, sprue ho isa bokhutšoanyane bo teteaneng e ntle.

3. Mocheso oa ente
Mocheso oa PPO o entetsoeng ke 270-290°C. Mocheso oa PPO o bōpehileng ke 280-330°C 'me mocheso oa PPO o fetotsoeng ke 260-285°C. Mocheso o qhibilihang oa PPO ke 270-290°C.
PPO e na le ho hanyetsa mocheso haholo, mocheso oa ho bola ha mocheso o fihlang ho 350 ℃, ha ho na ketsahalo e totobetseng ea ho senyeha ha mocheso ka har'a 300 ℃. Hangata, mocheso oa barele o laoloa ho 260-290℃, 'me mocheso oa nozzle o ka tlase ho 10℃ ho feta mocheso oa barele.
Ka lebaka la ho qhibiliha ho hoholo ha PPO e qhibilihang, mocheso o phahameng oa hlobo o lokela ho sebelisoa ha ho etsoa ente. Hangata, mocheso oa hlobo o laoloa ho 100 ~ 150℃. Ha mocheso oa hlobo o le tlase ho 100℃, likarolo tsa polasetiki tse nang le mabota a masesaane li bonolo ho tlatsoa ka ho se lekane le ho qhaqhoa; ha li phahame ho feta 150℃, lipululana, terata ea silevera, warpage le liphoso tse ling li bonolo ho hlaha.

4. Khatello ea ente
Ho qhibiliha ha PPO, ha ho etsoa ente, ho loketse ho nka khatello e phahameng, ente e lebelo le phahameng, khatello ea ho tšoara le nako ea ho pholisa e ke ke ea ba telele haholo. Eketsa khatello ea ente, ho qhibiliha ho loketse ho tlatsa hlobo, taolo ea khatello ea ente e akaretsang ho 100-140MPa, ho tšoara taolo ea khatello ho 40-80MPa. Ho latela maemo a itseng ho etsa liphetoho.

5. Lebelo la ente
Lihlahisoa tse nang le li-runner tse telele li hloka ho entoa ka potlako, empa tabeng ena etsa bonnete ba hore filimi e na le moea o lekaneng.

Phetoho ea ho kopanya ea PPO

Tshebetso ya polyphenylene ether e ntle haholo, empa e na le kganyetso e fokolang ya solvent, dihlahiswa di sekametse ho petsoha ha kgatello ya maikutlo, matla a tlase a tshusumetso, thepa e tala e turang, serethe sa Achilles ke hore viscosity ya sona e qhibilihang e kgolo haholo, ho phalla ho fokolang, le mocheso o nolofatsang wa 300 ℃ kapa ho feta, le tshebetso ya mocheso o phahameng wa 330 ℃ mme ho bonolo ho e senya, e leng se fellang ka mathata a ho bopa a ho sebetsana le ona le tshebediso ya matla e kgolo haholo. E le ho hlola mefokolo ena le ho fa PPO thepa e ntjha, e fetotswe ka ditsela tse fapaneng.

1. Phetoho ea motsoako oa PPO le PS
PPO le PS ke li-polymer tse sa fetoheng tse lumellanang hantle. Ka ho kopanya le PS, litšenyehelo tsa ts'ebetso li ka fokotsoa 'me bokhoni ba ho sebetsa ba PPO bo ka ntlafala haholo, empa khanyetso ea mocheso e fokotseha hanyane. Ena ke moloko oa pele oa alloy ea polyphenylene ether, kahoo PPO e sebelisitsoe haholo, e le ho ntlafatsa ts'ebetso ea mofuta ona oa alloy, batho ba 'nile ba etsa lintlafatso tse fapaneng ho eona.

2. Phetoho ea motsoako oa PPO le PA
Ho kopanya tse peli ha ho ntlafatse feela ts'ebetso ea ts'ebetso le khanyetso ea solvent ea PPO, empa hape ho ntlafatsa khanyetso ea mocheso le botsitso ba PA, ka hona ho fihlella melemo e tlatsanang. Leha ho le joalo, ho lumellana ha tse peli ho fokola haholo, ke karolo ea sistimi e sa lumellaneng ka ho felletseng, 'me karohano ea mohato oa khauta e kopantsoeng e tebile, e fellang ka motsoako o tetebelang. Bafuputsi ba entse lipatlisiso tse ngata mabapi le bokhoni, ho tiisa le ho matlafatsa li-alloy tsa PPO/PA, 'me ba fihletse liphetho tse ngata tsa lipatlisiso mme ba entse hore li-alloy tsa PPO/PA li sebelisoe haholo.

3. Phetoho ea ho kopanya PPO le PBT
Ho kopanya thepa e 'meli e loketseng ho rarolla bothata ba ho monngoa ha metsi a mangata a motsoako oa PPO/PA. Ho tiea le matla a motsoako oa PPO/PBT ha li khone ho fihlela litlhoko tsa ts'ebeliso e fapaneng, joalo ka sistimi e kopantsoeng ea PPO/PA, eo le eona e hlokang ho tiisoa le ho matlafatsoa.

4. Phetoho ea ho kopanya PPO le PPS
Lilemong tsa morao tjena, likarolong tse ling tsa elektroniki le tsa motlakase tsa ts'ebetso ea ho kopanya bokaholimo, ho tjheseletsa ka mouoane le mokhoa oa VPS o sebelisang solder ho ntse ho ata, kahoo resin e sebelisoang le eona ea hlokahala ho hanela mocheso o phahameng o kaholimo ho 260 ℃, ha mocheso oa phetoho ea khalase oa PPO e hloekileng e le hoo e ka bang 210 ℃ feela, o ke ke oa fihlela litlhoko tse phahameng joalo tse hanelang mocheso, kahoo nts'etsopele ea motsoako o phahameng o hanelang mocheso oa PPO / PPS. Empa tsena tse peli li boetse li hloka ho eketsa bokhoni ba kalafo.

5. Phetoho ea motsoako oa PPO le PTFE
Lisebelisoa tse peli tse kopantsoeng, ho hanyetsa mocheso oa PPO, thepa ea mechini, botsitso ba litekanyo le ho hanyetsa ho tsofala ha PTFE, ts'ebetso ea ho tlotsa, ho monya metsi li nyane, ts'ebetso ea lihlahisoa tse nepahetseng haholo. E ka fihlela litlhoko tse felletseng tsa ts'ebetso ea thepa ea 'mele le thepa ea ho jara e haufi le likarolo tsa sebopeho sa tšepe.

5. Phetoho ea motsoako oa PPO le SBS
PPO le SBS lia tsamaisana hantle, motsoako oa PPO/SBS o ntlafatsa ho fapoha le ts'ebetso ea tšusumetso ea PPO, ka ho monya metsi hanyane, ho tiea hantle, mocheso o phahameng oa ho fapoha ha mocheso le ho nepahala ho phahameng, tse sebelisoang haholo indastering ea motlakase le indastering ea likoloi le masimong a mang.

III Litšebeliso tsa PPO

1. Motlakase le lisebelisoa tsa elektroniki
Indasteri ea motlakase le ea elektroniki e sebelisoa haholo tlhahisong ea lihokelo, li-spool tsa ho bilikisa likhoele, lithebe tsa likarolo tsa mechini, li-switch le li-relay, lisebelisoa tsa ho lokisa, lipontšo tse kholo tsa elektroniki, li-capacitor tse feto-fetohang, lisebelisoa tsa betri, li-microphone le likarolo tse ling.

2. Indasteri ea likoloi
E loketse likarolo tsa phanele ea lisebelisoa, liforeimi tsa lifensetere, li-shock absorber, li-filter tsa pompo, li-grille tsa radiator, li-grille tsa sebui, li-consoles, mabokose a fuse, mabokose a relay, lihokelo, likoahelo tsa mabili, jj.

3. Lisebelisoa tsa ka tlung
E sebelisoa bakeng sa lithelevishene, lik'homphieutha, lik'hamera, lik'hasete tsa video, lirekoto tsa theipi, li-air conditioner, li-heater, li-cooker tsa raese le likarolo tse ling. Bakeng sa likopi, litsamaiso tsa lik'homphieutha, liprinta, mechini ea fax le likarolo tse ling tsa kantle le likarolo.

4. Mechine ea indasteri
E loketse ho etsa likarolo tse sa cheseng mocheso, likarolo tse sireletsang mocheso, likarolo tse sa tsofaleng, likarolo tsa phetiso; ho etsa li-gear tsa mocheso o phahameng, mahare a fene, li-valve le likarolo tse ling, ho ka nkela tšebeliso ea tšepe e sa hloekang sebaka; e ka boela ea etsoa ka likurufu, li-fasteners le likarolo tse hokahanyang.