NguAndy osuka kumzi-mveliso waseBaiyear
Ihlaziywe ngoNovemba 2, 2022
Nali iziko leendaba loshishino lokubumba inaliti ye-Baiyear.Okulandelayo, i-Baiyear iya kwahlula inkqubo yokubumba inaliti ibe ngamanqaku amaninzi ukwazisa uhlalutyo lwezinto ezikrwada zenkqubo yokubumba inaliti, kuba kukho umxholo omninzi kakhulu.Elilandelayo linqaku lesithandathu.
(14).I-PPO (ipolyphenylene ether)
1. Ukusebenza kwePPO
I-Polyphenylene oxide yi-poly-2,6-dimethyl-1,4-phenylene oxide, eyaziwa ngokuba yi-polyphenylene oxide, igama lesiNgesi elithi Polyphenyleneoxiole (elibizwa ngokuba yi-PPO), i-polyphenylene ether elungisiweyo iguqulwe nge-polystyrene okanye ezinye iipolima.Ukwabelana ngesondo kwe-polyphenylene ether, ekubhekiselwa kuyo njengeMPPO.
I-PPO (NORLY) yiplastiki yobunjineli eneempawu ezigqwesileyo.Inobulukhuni obuphezulu kune-PA, i-POM kunye ne-PC, amandla aphezulu omatshini, ukuqina okulungileyo, ukuxhathisa ubushushu obuhle (ubushushu be-thermal deformation yi-126 ℃), kunye nokuzinza okuphezulu kwe-dimensional (ubushushu bokunciphisa).izinga le-0.6%), ukufunxa kwamanzi aphantsi (ngaphantsi kwe-0.1%).Ukungalungi kukuba ayizinzile kwimitha ye-ultraviolet, ixabiso liphezulu, kwaye i-dosage incinci.
I-PPO ayinayo ityhefu, ayicacanga, inoxinaniso olusezantsi, kwaye inamandla abalaseleyo omatshini, ukuxhathisa ukuthomalalisa uxinzelelo, ukuxhathisa, ukuxhathisa ubushushu, ukunganyangeki kwamanzi, kunye nokunganyangeki komphunga wamanzi.Iipropati zombane ezilungileyo kuluhlu olubanzi lobushushu kunye nokutshintsha rhoqo, akukho hydrolysis, ukuncibilika okuncinci kokubumba, i-flame retardant kunye nokuzicima, ukumelana kakubi ne-inorganic acids, i-alkalis, i-hydrocarbons enevumba elimnandi, i-halogenated hydrocarbons, i-oyile, njl., kulula ukudumba Okanye ukuphazamiseka kokuxinzezeleka, izinto ezingalunganga ezingundoqo zokunganyibiliki kwamanzi, ukucubungula okunzima kunye nokwenza, uninzi lwezicelo ezisebenzayo ziyiMPPO (i-PPO blends okanye i-alloys), njenge-PS ukuguqulwa kwe-PPO, inokuphucula kakhulu ukusebenza kokucubungula, ukuphucula ukunyanzeliswa koxinzelelo kunye nefuthe. ukumelana Ukusebenza, ukunciphisa iindleko, ukunciphisa nje kancinci ukumelana nobushushu kunye neglosi.
Iipolymers ezilungisiweyo zibandakanya i-PS (kubandakanywa ne-HIPS), i-PA, i-PTFE, i-PBT, i-PPS kunye ne-elastomers ezahlukeneyo, i-polysiloxane, i-PS eguqulelwe i-PPO iparafini, imveliso enkulu, i-MPPO yeyona nto isetyenziswa ngokubanzi kwiindidi zeplastiki zeplastiki.Iindidi zeMPPO ezinkulu ziiPPO/PS, PPO/PA/elastomers kunye nePPO/PBT elastomer alloys.
2. Iimpawu zenkqubo yePPO:
I-PPO ine-viscosity ephezulu yokunyibilika, ukungahambi kakuhle kwamanzi, kunye neemeko eziphezulu zokusebenza.Ngaphambi kokucutshungulwa, kufuneka yomiswe kwiqondo lokushisa kwe-100-120 ° C kwiiyure ze-1-2, ukushisa kwe-molding yi-270-320 ° C, kwaye ukushisa kwe-mold kulungele ukulawulwa kwi-75-95 ° C.ukuqhubekeka.Kwinkqubo yokuvelisa le plastiki yobhiya yeplastiki, ipateni yokuhamba kwejethi (ipateni yenyoka) kulula ukuveliswa phambi komlomo, kwaye umjelo wokuhamba we-nozzle ungcono kakhulu.
Ubuncinci bobunzima buvela kwi-0.060 ukuya kwi-0.125 intshi yokubumba okusemgangathweni kunye ne-0.125 ukuya kwi-0.250 intshi ye-foams yesakhiwo, kunye nokutsha okuvela kwi-UL94 HB ukuya kwi-VO.
3.Uluhlu oluqhelekileyo lwesicelo:
I-PPO kunye ne-MPPO inokucutshungulwa ngeendlela ezahlukeneyo zokusetyenzwa njengenaliti yokubumba, i-extrusion, ukubunjwa kokuvuthela, ukubumba, ukukhupha amagwebu kunye ne-electroplating, i-vacuum coating, ukusetyenzwa koomatshini bokushicilela, njl., ngenxa ye-viscosity ephezulu yokunyibilika kunye nokushisa okuphezulu.
I-PPO kunye neMPPO zisetyenziswa ikakhulu kwizixhobo ze-elektroniki, iimoto, izixhobo zendlu, izixhobo zeofisi kunye noomatshini bemizi-mveliso, njl., kusetyenziswa iMPPO ukumelana nobushushu, ukuxhathisa impembelelo, ukuzinza komda, ukunganyangeki, kunye nokuxhathisa ukuxobuka;
Ukupeyintwa kunye neempawu zombane: ezisetyenziselwa ukwenza iideshibhodi zeemoto, iigridi zeradiyetha, iigrili zesithethi, iikhonsoli, iibhokisi ze-fuse, iibhokisi zokuhanjiswa, izihlanganisi, izigqubuthelo zamavili;isetyenziswa ngokubanzi kushishino lombane kunye ne-elektroniki ukuvelisa izihlanganisi, ii-coil windings Spools, ii-spools switching relays, izixhobo zokulungisa, iziboniso ezinkulu ze-elektroniki, ii-capacitors eziguquguqukayo, izincedisi zebhetri, ii-microphone kunye nezinye izinto.
Izixhobo zombane zasekhaya zisetyenziselwa oomabonakude, iikhamera, iikhasethi zevidiyo, iirekhoda, izifudumezi, izifudumezi, iziko lokuphekela irayisi nezinye iindawo.Ingasetyenziswa njengamalungu angaphandle kunye namacandelo abakhupheli, iinkqubo zekhompyutha, abashicileli, oomatshini befeksi, njl. Ukongeza, inokusetyenziswa njengekhamera, isibali-xesha, impompo yamanzi, iqokobhe lokuvuthela kunye namalungu, izixhobo ezithuleyo, umbhobho, umzimba wevalvu, isixhobo sotyando, isibulali-ntsholongwane kunye nezinye izixhobo zonyango.
Ukubumba ukubetha okukhulu kungasetyenziselwa iindawo ezinkulu zemoto ezifana neziphangi, iibumpers, kunye nokubumba okunogwebu oluphantsi.Kufanelekile ukuveliswa kweemveliso ezinkulu ezinobunzima obuphezulu, ukuzinza kwe-dimensional, ukufunxa isandi esihle kakhulu, kunye nezakhiwo zangaphakathi eziyinkimbinkimbi, ezifana neegobolondo zomatshini ezahlukeneyo, iziseko, izinto zangaphakathi I-bracket kunye noyilo lunenkululeko enkulu, kwaye imveliso ilula.
(15).PBT polybutylene terephthalate
1. Ukusebenza kwe-PBT:
I-PBT yenye yezona zinto zinzima zobunjineli be-thermoplastics.Yimpahla ye-semi-crystalline enezinzo ezintle kakhulu zeekhemikhali, amandla omatshini, iipropati zokukhusela umbane kunye nokuzinza kwe-thermal.Ezi zixhobo zinozinzo oluhle kwiimeko ezininzi zokusingqongileyo, kwaye i-PBT ineempawu ezibuthathaka kakhulu ze-hygroscopic.Amandla okuqina e-PBT engaqiniswanga yi-50MPa, kwaye amandla okuqina ohlobo lokongeza lweglasi lwePBT yi-170MPa.Ukongeza kwiglasi eninzi kakhulu kuya kubangela ukuba izinto zibe brittle.
I-PBT;Icrystallization ikhawuleza kakhulu, nto leyo eya kubangela ukugoba ukugoba ngenxa yokupholisa okungalinganiyo.Kwizinto eziphathekayo ezinezongezo zeglasi, i-shrinkage kwindlela yenkqubo ingancitshiswa, kodwa i-shrinkage kwi-direction perpendicular process is basically efana neyezinto eziqhelekileyo.
Izinga lokucutheka kwezinto ngokubanzi liphakathi kwe-1.5% kunye ne-2.8%.Izinto eziqulethe i-30% yezongezo zeglasi ziyancipha phakathi kwe-0.3% kunye ne-1.6%.Indawo yokunyibilika (i-225% ℃) kunye nobushushu obuphezulu be-deformation buphantsi kunemathiriyeli ye-PET.Iqondo lobushushu leVicat lokuthambisa limalunga ne-170°C.Ubushushu bokutshintsha kweglasi (iglasi trasitiotemperature) buphakathi kwama-22°C kunye nama-43°C.
Ngenxa yezinga eliphezulu le-crystallization ye-PBT, i-viscosity yayo iphantsi kakhulu, kwaye ixesha lomjikelo wokucutshungulwa kweenxalenye zeplastiki liphantsi.
2. Iimpawu zenkqubo ye-PBT:
Ukomisa: Esi sixhobo sifakwe kwi-hydrolyzed ngokulula kumaqondo obushushu aphezulu, ngoko ke ukomisa ngaphambi kokulungiswa kubalulekile.Iimeko zokumisa ezicetyiswayo emoyeni ziyi-120C kwiiyure ze-6 ~ 8, okanye i-150C ye-2 ~ 4 iiyure.
Ukufuma kufuneka kube ngaphantsi kwe-0.03%.Ukuba ukomisa nge-hygroscopic desiccator, iimeko ezicetyiswayo ziyi-150 ° C kwiiyure ze-2.5.Ubushushu bokusebenza yi-225 ~ 275 ℃, kwaye ubushushu obucetyiswayo yi-250 ℃.Kwizinto ezingaqiniswanga, ubushushu bokubumba bungama-40 ~ 60℃.Umjelo wokupholisa wesikhunta kufuneka ulungiswe kakuhle ukunciphisa ukugoba kwenxalenye yeplastiki.Ukutshatyalaliswa kobushushu kufuneka kube ngokukhawuleza kwaye ngokulinganayo.
Ububanzi obucetyiswayo bejelo lokupholisa lokungunda yi-12mm.Uxinzelelo lwenaliti luphakathi (ukuya kuthi ga kwi-1500bar), kwaye isantya sokutofa kufuneka sikhawuleze kangangoko (kuba i-PBT iqina ngokukhawuleza).Umgijimi kunye nesango: Kunconywa ukusebenzisa umgijimi ojikelezayo ukunyusa ukuhanjiswa koxinzelelo (ifomula yamava: umgijimi ububanzi = ubukhulu becala leplastiki + 1.5mm).
Iindidi ezahlukeneyo zamasango zingasetyenziswa.Iimbaleki ezishushu nazo zinokusetyenziswa, kodwa kufuneka kuthatyathwe ngenyameko ukuthintela ukuvuza kunye nokuthotywa kwezinto.Ububanzi besango kufuneka bube phakathi kwe-0.8 ~ 1.0 * t, apho i-t ibubukhulu benxalenye yeplastiki.Ukuba lisango eliphantsi kwamanzi, ubuncinane be-diameter ye-0.75mm kuyacetyiswa.
3.Uluhlu oluqhelekileyo lwesicelo:
izixhobo zasendlini (iincakuba zokulungisa ukutya, izinto zokucoca, iifeni zombane, izindlu zokomisa iinwele, izixhobo zekofu, njl.njl.), izinto zombane (izitshixo, izindlu zeemoto, iibhokisi ze-fuse, izitshixo zekhibhodi zekhompyuter, njl.njl.), Ishishini lemoto (i-radiator grilles, iipaneli zomzimba, izigqubuthelo zamavili, iicango neefestile, njl.
Ulwazi oluninzi luye lwaziswa kule ndawo.Ngolunye ulwazi oluninzi, iBaiyear iya kuyihlaziya ngokukhawuleza.Siya kuhlala sihlaziya imathiriyeli ekrwada yeplastiki, ukusetyenzwa kwesitofu sokubumba, isingeniso sesixhobo sokubumba, uyilo lokubumba, ukukrola umngundo, isingeniso sesixhobo sokwenza umngundo, ukusetyenzwa kwesinyithi, iindaba zolwazi kwimveliso yebhokisi yokuhambisa, imveliso yebhokisi yentsimbi, izixhobo zokusetyenzwa kweshiti yentsimbi, ukungangeni kwamanzi. ibhokisi ye-junction, ikhava yefestile engenamanzi, njl. Ukuba unomdla kulwazi olungentla, unokuqhagamshelana nam nangaliphi na ixesha, ndiya kukuvuyela ukukukhonza kwaye ndijonge phambili ekufikeni kwakho.
Qhagamshelana:Andy Yang
What's app : +86 13968705428
Email: Andy@baidasy.com
Ixesha lokuposa: Nov-29-2022
