PPO zinthu zochokera ku SIKO
Polyphenylene oxide kapena polyethylene ether Amadziwikanso kuti polyphenylene oxide kapena polyphenylene ether, ndi utomoni wosagwirizana ndi kutentha kwa thermoplastic.
Makhalidwe ndi Ntchito
PPO ndi pulasitiki yaukadaulo wa thermoplastic yomwe imagwira ntchito bwino kwambiri, kutsekereza kwamagetsi kwapadera komanso kukana madzi, komanso kukhazikika kwapang'onopang'ono.
1, katundu wa dielectric wa mapulasitiki aumisiri woyamba
PPO resin mamolekyulu a maselo opanda magulu amphamvu a polar, katundu wokhazikika wamagetsi, amatha kukhalabe ndi mphamvu zamagetsi pamitundu yosiyanasiyana ya kutentha ndi mafupipafupi.
① Dielectric yosasinthasintha: 2.6-2.8 ndiyo yaying'ono kwambiri mu mapulasitiki a engineering ② Tangent of dielectric loss Angle: 0.008-0.0042 (pafupifupi samakhudzidwa ndi kutentha, chinyezi ndi ma frequency) ③ Kulimbana ndi voliyumu: 1016 ndiye wapamwamba kwambiri mu mapulasitiki aumisiri
2, zabwino mawotchi ndi matenthedwe katundu wa PPO maselo unyolo, munali ambiri onunkhira dongosolo mphete, tilinazo maselo unyolo wamphamvu, utomoni mawotchi mphamvu ndi mkulu, kwambiri zokwawa kukana, kutentha kusintha kochepa kwambiri.PPO imakhala ndi kutentha kwakukulu, kutentha kwa galasi mpaka 211 ℃, malo osungunuka 268 ℃.
3, kukana kwambiri kwamadzi PPO ndi utomoni wosakhala wa crystalline, mu kutentha kwanthawi zonse, kusuntha kochepa kwa maselo, palibe magulu akuluakulu a polar mu unyolo waukulu, mphindi ya dipole sikuchitika, kukana madzi ndikwabwino kwambiri, ndikotsika kwambiri mayamwidwe amadzi. mitundu yosiyanasiyana ya mapulasitiki.Maonekedwe ake akuthupi akadali ndi kuwonongeka pang'ono ataviika m'madzi otentha kwa nthawi yayitali.
4, Mlozera wa okosijeni wa PPO yozimitsa yokha ndi 29, yomwe imakhala yozimitsa yokha, ndipo ndondomeko ya oksijeni ya polyethylene yapamwamba ndi 17, yomwe ndi zinthu zoyaka moto.Kuphatikizika kwa ziwirizi kumakhala kotentha pang'ono.Mukamapanga PPO yobwezeretsanso malawi, palibe chifukwa chowonjezera halogen flame retardant, kuwonjezera mlingo wa phosphorous wokhala ndi flame retardant kumatha kufikira muyezo wa UL94.Chepetsani kuwononga chilengedwe.
5, otsika shrinkage mlingo, wabwino dimensional bata;Non-poizoni, otsika kachulukidwe 6, dielectric kukana ndi kuwala kukana PPO asidi, alkali ndi detergent ndi zina dzimbiri zofunika, pansi pa chikhalidwe cha nkhawa, mchere mafuta ndi ketone, ester solvents adzatulutsa kupsinjika maganizo;Ma organic solvents monga aliphatic hydrocarbons, halogenated aliphatic hydrocarbons ndi mafuta onunkhira a hydrocarbon amatha kusungunuka ndikusungunuka.
Kufooka kwa PPO ndikosavuta kukana kuwala, nthawi yayitali pansi pa kuwala kwa dzuwa kapena kugwiritsa ntchito nyali ya fulorosenti kumatulutsa kusinthika, mtundu wachikasu, chifukwa chake ndi chakuti kuwala kwa ultraviolet kungapangitse unyolo wa ether wonunkhira kugawanika.Momwe mungasinthire kukana kwa kuwala kwa PPO imakhala mutu.
Kuchita kwa PPO kumatsimikizira gawo ndi kuchuluka kwa ntchito:
①MPPO kachulukidwe kakang'ono, kosavuta kukonza, kutentha kwa kutentha kwa 90-175 ℃, pali mitundu yosiyanasiyana ya katundu, kukhazikika kwabwino, koyenera kupanga zida zaofesi, zida zapakhomo, mabokosi apakompyuta, chassis ndi magawo olondola.
② MPPO dielectric mokhazikika ndi dielectric kutayika Angle tangent m'mapulasitiki asanu apamwamba kwambiri otsika kwambiri, ndiye kuti, kutsekereza kwabwino kwambiri, komanso kukana kutentha kwabwino, koyenera makampani amagetsi.Zoyenera kupanga zida zotchingira magetsi, monga chimango cha coil, chotengera chubu, shaft yowongolera, manja achitetezo a thiransifoma, bokosi lopatsirana, mzati wotsekereza ndi zina zotero, zomwe zimagwiritsidwa ntchito ponyowa komanso zodzaza.
③ MPPO ili ndi kukana madzi abwino komanso kukana kutentha, komwe ndi koyenera kupanga mita yamadzi, mapampu amadzi ndi machubu a ulusi omwe amagwiritsidwa ntchito m'mafakitale opangira nsalu omwe amafunikira zinthu zokhazikika zogula kuti aziphika.Machubu opangidwa ndi MPPO amakhala ndi moyo wautali.
④ Kutayika kwa dielectric nthawi zonse ndi dielectric Engle tangent ya MPPO sikukhudzidwa ndi kutentha ndi nambala yozungulira mu mapulasitiki a uinjiniya, ndipo imakhala ndi kutentha kwabwino komanso kukhazikika kwapang'onopang'ono, komwe kuli koyenera kumakampani amagetsi.
Nthawi yotumiza: 24-09-21