Nyiaj tso
Kev ua haujlwm PPO
Polyphyrether yog Poly2, 6-Dadethyl-1, 4-Dadethyl-1, 4-Dadethyl-1, 4-Dadethyl-1, 4 -Tus neeg, polyphenyleneoxiole (PPOPRIED
PPO yog ib hom kev ua haujlwm yas nrog kev ua tau zoo dua, pom kev zoo dua li Pa, POM, muaj kev ruaj ntseg zoo dua li ntawm pa, zoo nkauj dog dig (shrinkage tus nqi ntawm 0.6%) , Cov dej nqus dej tsis haum (tsawg dua 0.1%). Qhov tsis zoo yog tias UV tsis ruaj khov, tus nqi yog siab thiab tus nqi me me. PPO tsis muaj tshuaj lom, pob tshab, muaj zog dua, kev ntxhov siab tsis kam, cov cua kub tiv thaiv, dej vapor tiv taus.
Nyob rau hauv ntau ntau qhov kub, feem ntau muaj ntau yam kev ua haujlwm hluav taws xob zoo, ua rau muaj cov roj ntsha me me, ua kom muaj ntxhiab tsw qab, roj thiab lwm yam kev ua tsis zoo, Kev tsis yooj yim o lossis kev ntxhov siab tawg, lub ntsiab lus tseem ceeb yog kev ua tau zoo melting, kev tsim cov kev nyuaj, feem ntau ntawm cov tswv yim muab rau lossis alloy).
Txheej Txheem Cov yam ntxwv ntawm PPO
PPO muaj siab heev viscosity, kev ua kom tsis zoo thiab ua haujlwm siab. Ua ntej kev ua tiav, nws yog ib qho tsim nyog los qhuav rau 1-2 teev ntawm qhov ntsuas kub ntawm 100-120 ℃, moulding kub yog tsim nyog ntawm 75, thiab tsim kev ua raws li qhov xwm txheej ntawm "siab kub, kev kub siab thiab siab ceev ". Hauv cov txheej txheem ntau lawm ntawm cov yas npias, Dav hlau ntws tawm qauv (tus qauv nab) yog ib qho yooj yim rau kev tsim nyob rau hauv pem hauv ntej ntawm lub nozzle, thiab lub nozzle flow channel zoo dua.
Qhov tsawg kawg nkaus thickness ranges los ntawm 0.060 mus rau 0.125 nti rau cov qauv pwm thiab 0.125 rau 0.250 nti rau cov qauv ua npuas ncauj. Cov flammability ranges los ntawm ul94 HB rau VO.
Cov ntawv thov raug
PPO thiab MPOO feem ntau yog siv nyob rau hauv cov khoom siv hluav taws xob, tsheb, siv cov khoom siv hluav taws xob, kev ua haujlwm tsis ruaj khov, flaking tsis kam;
PC
Kev ua tau ntawm PC
PC yog hom tsis muaj formless, tsis muaj ntxhiab, tsis muaj neeg siv tshuaj ntsuab, tshwj xeeb heev kev cuam tshuam, muaj lub zog, muaj lub zog, lub zog muaj zog; Cov tawv muaj zog zoo, huab cua zoo thiab huab cua kuj, xim yooj yim, dej nqus dej tsawg.
Lub thermal deformation kub ntawm PC yog 135-143 ℃, tus nkag yog qhov me me thiab qhov loj me yog qhov ruaj khov. Nws muaj cov cua sov zoo thiab kub tsis kam, ruaj khov kho tshuab, seem ruaj khov, hluav taws xob thiab nplaim taws retardant nyob rau hauv qhov dav dav. Nws tuaj yeem siv rau lub sijhawm ntev ntawm -60 ~ 120 ℃.
Ruaj khov rau lub teeb, tab sis tsis tiv taus UV teeb, huab cua zoo tsis kam; Cov roj ua tsis taus, acid distorance, oxidation acid thiab cov kuab paug, inhibit retardant yam ntxwv, int polling retardant yam ntxwv, int polling retardant yam ntxwv, intomium retardant yam ntxwv, int polling retardant yam ntxwv, int polling retardant yam ntxwv, intomium retardant yam ntxwv, int polling retardant yam ntxwv, int polling retardant yam ntxwv, intomium retardant yam ntxwv, inhibe cov kab mob tsis yooj yim los ua rau cov kab mob sib xyaw ua ke, tsis muaj kuab lom Vim tias tsis muaj zog nkees lub zog, yooj yim los tsim kev ntxhov siab, cov kuab thuam tsis zoo, cov hnav tsis zoo, hnav tsis zoo. Kev txhaj tshuaj PC, tshuab moulding, tshuab moulding, tshuab moulding, luam ntawv, sib koom ua ke, txheej txheem kev ua lag luam tseem ceeb tshaj plaws yog txhaj tshuaj molding.
Txheej Txheem Cov yam ntxwv ntawm PC
PC cov khoom siv tau ntau dua rau qhov kub thiab txias, nws cov melting viscosity nrog rau kev nce siab, txhawm rau txhim kho nws cov txiaj ntsig, coj tus txheej txheem cua sov. Cov khoom siv PC ua ntej ua tiav kom qhuav (120 ℃, 3 ~ 4 teev yuav tsum tau ua los ntawm kev kub siab, cov dej noo, PC ntawm chav tsev kub muaj qhov muaj peev xwm ua tau mus yuam kev loj elastic deformation. High cuam tshuam todness, yog li nws tuaj yeem txias nias, txias kos duab, rab xauv rab diav (lwm yam txias. PC cov khoom yuav tsum tau pwm nyob rau hauv cov kev mob ntawm cov khoom kub siab, siab pwm thiab kub ceev. Rau kev txhaj tshuaj me me, yuav tsum tau siv ceev ceev. Rau lwm hom spru, kev tiv thaiv kev kub ceev yuav tsum tau siv.
Pwm kub tswj nyob rau hauv 80-110 ℃ yog qhov zoo dua, ua kom sov hauv 280-320 ℃ yog qhov tsim nyog.
Cov ntawv thov raug
PC Lub Peb Daim Ntawv Thov yog iav Kev Lag Luam, Kev Lag Luam Tsheb, khoos phis tawj, zaj duab xis, kev ua yeeb yam, kev lom zem thiab tiv thaiv cov khoom
PBT
Kev ua tau zoo PBT
PBT yog ib qho nyuaj tshaj plaws tshuab hluav taws xob thermopoplastic, nws yog cov khoom siv tshuaj semi-crystalline, muaj zog heev, hluav taws xob rwb thaiv tsev cov yam ntxwv thiab hluav taws xob ruaj khov. Cov ntaub ntawv no muaj qhov ruaj khov zoo nyob rau hauv ntau qhov kev mob ib puag ncig, thiab PBT noo noo noo noo noo noo noo noo noo noo muaj zog yog heev zog.
Melting point (225% ℃) thiab kub deformation kub yog qis dua li cov khoom tsiaj. VeKa softening kub yog li 170 ℃. Lub khob hloov cua kub nyob nruab nrab ntawm 22 ℃ thiab 43 ℃.
Vim yog lub siab crystallization ntawm PBT, nws Viscosity yog tsawg heev, thiab lub sijhawm voj voog ntawm cov khoom yas ua feem ntau ua qis.
Txheej Txheem Cov yam ntxwv ntawm PBT
Kom qhuav: no cov khoom siv hydrolyzes tau yooj yim thaum muaj kub, yog li nws yog ib qho tseem ceeb kom qhuav nws ua ntej kev ua tiav. Cov kev pom zoo kom qhuav cov hniav nyob hauv huab cua yog 120C, 6-8 teev, lossis 150 ℃, 2-4 teev. Cov av noo yuav tsum tsawg dua 0.03%. Yog tias siv lub tshuab ziab khaub ncaws hygroscopic, cov kev pom zoo kom kom qhuav yog 150 ° C rau 2.5 teev. Kev ua kub yog 225 ~ 275 ℃, thiab cov pom zoo qhov kev pom zoo yog 250 ℃. Rau cov khoom siv tsis tau xws li pwm kub yog 40 ~ 60 ℃.
Cov cua txias kab noj hniav ntawm cov pwm yuav tsum tau tsim kho kom tau zoo kom txo tau cov khoom khoov ntawm cov yas. Cov cua sov yuav tsum tau poob sai thiab sai. Nws raug nquahu tias txoj kab uas cov cheeb ntawm cov pwm txias yog 12mm. Lub kev txhaj tshuaj siab yog qhov nruab nrab (txog 1500bar siab tshaj plaws), thiab tus nqi txhaj yuav tsum ceev nrawm li sai tau (vim tias PBT puas tsuaj sai).
Khiav thiab rooj vag: ncig khiav yog pom zoo kom nce siab hloov.
Cov ntawv thov raug
Cov Khoom Siv Hauv Tsev (cov tshuab nqus tsev, tshuab nqus hluav taws xob, tshuab hluav taws xob, tshuab hluav taws xob, tshuab hluav taws xob, kev lag luam hauv tsev (radiator Grates, Lub cev panels, lub log npog, qhov rooj thiab lub qhov rai tiv thaiv, thiab lwm yam.
Lub Sijhawm Post: 18-11-22