PPO
Ukusebenza kwePPO
I-Polyphenylether yi-poly2, i-6-dimethyl-1, i-4-phenylether, eyaziwa nangokuthi i-polyphenyloxy, i-Polyphenyleneoxiole (PPO), i-polyphenylether eguqulelwe iguqulwa yi-polystyrene okanye ezinye iipolymers (MPPO).
I-PPO luhlobo lweplastiki yobunjineli esebenza ngokugqwesileyo, ubunzima obuphezulu kune-PA, i-POM, i-PC, amandla aphezulu omatshini, ukuqina okuhle, ukumelana nobushushu obulungileyo (iqondo lobushushu le-thermal deformation ye-126 ℃), uzinzo oluphezulu lwe-dimensional (isantya sokushwabana kwe-0.6%) , izinga lokufunxa amanzi aphantsi (ngaphantsi kwe-0.1%). Ukungalungi kukuba i-UV ayizinzile, ixabiso liphezulu kwaye ixabiso lincinci. I-PPO ayinayo ityhefu, ayicacanga, ingxinano encinci, inamandla omatshini abalaseleyo, ukuxhathisa ukuthomalalisa uxinzelelo, ukuxhathisa, ukuxhathisa ubushushu, ukunganyangeki kwamanzi, ukuxhathisa komphunga wamanzi.
Kuluhlu olubanzi lwamaqondo obushushu, ukuguquguquka okuphindaphindiweyo kokusebenza kakuhle kombane, akukho hydrolysis, ukwenza izinga lokucutheka lincinci, linokutsha ngokuzitshisa, ukuchasana ne-asidi ye-inorganic, i-alkali, i-aromatic hydrocarbon resistance, i-halogenated hydrocarbon, i-oyile kunye nokunye ukusebenza kakubi, ukudumba okulula okanye ukuqhekeka koxinzelelo, eyona nto iphambili kukusilela kukunyibilika kakubi, ukusetyenzwa kunye nokwenza ubunzima, uninzi lwesicelo esisebenzayo seMPPO (umxube wePPO okanye ialloy).
Iimpawu zenkqubo yePPO
I-PPO ine-viscosity ephezulu yokunyibilika, ukungahambi kakuhle kombane kunye neemeko eziphezulu zokusetyenzwa. Ngaphambi kokusebenza, kuyimfuneko ukomisa iiyure ezi-1-2 kwiqondo lokushisa le-100-120 ℃, ukwenza iqondo lokushisa yi-270-320 ℃, ulawulo lobushushu lokungunda lufanelekile kwi-75-95 ℃, kunye nokwenza inkqubo phantsi kwemeko "phezulu. ubushushu, uxinzelelo oluphezulu kunye nesantya esiphezulu”. Kwinkqubo yokuvelisa le bhiya yeplastiki, i-jet flow pattern (ipateni yenyoka) kulula ukuveliswa phambi komlomo, kwaye umjelo wokuhamba kwe-nozzle ungcono.
Ubuncinci obuncinci busuka kwi-0.060 ukuya kwi-intshi ye-0.125 yeendawo ezibunjiweyo eziqhelekileyo kunye ne-0.125 ukuya kwi-0.250 intshi kwiindawo ze-foam zesakhiwo. Uluhlu lokutsha ukusuka kwi-UL94 HB ukuya kwi-VO.
Uluhlu lwesicelo oluqhelekileyo
I-PPO kunye neMPPO zisetyenziswa ikakhulu kwizixhobo zombane, iimoto, izixhobo zendlu, izixhobo zeofisi kunye noomatshini boshishino, njl., kusetyenziswa ukuxhathisa ubushushu beMPPO, ukuxhathisa impembelelo, ukuzinza komgangatho, ukuxhathisa ukubetha, ukuxhathisa ukubetha;
PC
Ukusebenza kwePC
I-PC luhlobo lweeplastiki zobunjineli ezingenambala, ezingenavumba, ezingenavumba, ezingabonakaliyo, ezingenambala okanye ezityheli kancinane, ezineempawu ezibalaseleyo zomzimba nezomatshini, ngokukodwa ukuxhathisa impembelelo egqwesileyo, amandla aphezulu, amandla okugoba, amandla oxinzelelo; Ukuqina okuhle, ubushushu obuhle kunye nokumelana nemozulu, umbala olula, ukufunxa amanzi aphantsi.
Ubushushu be-thermal deformation ye-PC yi-135-143 ℃, i-creep incinci kwaye ubungakanani buzinzile. Inokushisa okulungileyo kunye nokumelana nokushisa okuphantsi, iipropati ezizinzileyo zomatshini, ukuzinza kwe-dimensional, iipropati zombane kunye ne-flame retardant kuluhlu olubanzi lobushushu. Ingasetyenziswa ixesha elide kwi -60 ~ 120 ℃.
Uzinzile ekukhanyeni, kodwa ungaxhathisi ukukhanya kwe-UV, ukumelana nemozulu elungileyo; Ukumelana ne-oyile, ukuxhathisa kwe-asidi, ukuxhathisa kwe-alkali, i-asidi ye-oxidation kunye ne-amine, i-ketone, i-soluble kwi-hydrocarbons ene-chlorine kunye nezinyibilikisi ezinevumba elimnandi, inqanda iimpawu zebhaktheriya, iimpawu ze-flame retardant kunye nokumelana nongcoliseko, ixesha elide emanzini kulula ukubangela i-hydrolysis kunye nokuqhekeka, ukungalunganga kuku ngenxa yokungabi namandla okudinwa, kulula ukuvelisa ukuqhekeka koxinzelelo, ukunganyangeki kwe-solvent, ukungahambi kakuhle kwamanzi, ukunganyangeki kokunxiba. Ukubumba inaliti yePC, i-extrusion, ukubumba, ukubumba ukuvuthela, ukuprinta, ukudibanisa, ukugquma kunye nomatshini, eyona ndlela ibalulekileyo yokulungisa inaliti.
Iimpawu zenkqubo yePC
Izinto zePC zinovakalelo ngakumbi kubushushu, i-viscosity yayo enyibilikayo kunye nokunyuka kwamaqondo obushushu kunye nokuncipha okukhulu, ukuhamba ngokukhawuleza, ukungakhathali kuxinzelelo, ukuze kuphuculwe umbane wayo, ukuthatha indlela yokufudumeza. izinto PC phambi kokuba processing yome ngokupheleleyo (120 ℃, 3 ~ 4 iiyure), ukufuma kufuneka ilawulwe ngaphakathi 0.02%, ulandelele inkqubo yamanzi kwiqondo lobushushu eliphezulu kuya kwenza iimveliso ukuvelisa umbala turbidious, isilivere kunye namaqamza, PC kwiqondo lobushushu egumbini inomthamo omkhulu. ukunyanzela ukuguqulwa kwe-elastic ephezulu. Ukuqina kwempembelelo ephezulu, ngenxa yoko kunokucinezela okubandayo, umzobo obandayo, ukucinezela umqulu obandayo kunye nenye inkqubo yokubumba ebandayo. Izinto zePC kufuneka zibunjwe phantsi kweemeko zobushushu bezinto eziphezulu, ubushushu obuphezulu bokubumba kunye noxinzelelo oluphezulu kunye nesantya esiphantsi. Kwi-sprue encinci, inaliti enesantya esisezantsi kufuneka isetyenziswe. Kwezinye iindidi ze-sprue, inaliti yesantya esiphezulu kufuneka isetyenziswe.
Ulawulo lobushushu bomngundo kwi-80-110℃ lungcono, ukwenza ubushushu kwi-280-320℃ kufanelekile.
Uluhlu lwesicelo oluqhelekileyo
Iindawo ezintathu zesicelo zePC zishishini lokuhlanganisa iglasi, ishishini lemoto kunye ne-elektroniki, ishishini lombane, lilandelwa ziindawo zoomatshini boshishino, idiski yamehlo, impahla yoluntu, ikhompyuter kunye nezinye izixhobo zeofisi, ukhathalelo lwezonyango kunye nempilo, ifilimu, ukuzonwabisa kunye nezixhobo zokukhusela.
PBT
Ukusebenza kwe-PBT
I-PBT yenye yezona zinto zinzima zobunjineli be-thermoplastic, yimathiriyeli ye-semi-crystalline, inozinzo oluhle kakhulu lweekhemikhali, amandla omatshini, iimpawu zokugquma umbane kunye nokuzinza kwe-thermal. Ezi zixhobo zinozinzo oluhle kwiimeko ezininzi zokusingqongileyo, kwaye iimpawu zokufunxa umswakama we-PBT zibuthathaka kakhulu.
Indawo yokunyibilika (i-225% ℃) kunye nobushushu obuphezulu be-deformation buphantsi kunemathiriyeli ye-PET. Iqondo lobushushu lokuthambisa iVeka limalunga ne-170℃. Iqondo lobushushu leglasi liphakathi kwe22℃ kunye ne43℃.
Ngenxa yezinga eliphezulu le-crystallization ye-PBT, i-viscosity yayo iphantsi kakhulu, kwaye ixesha lomjikelo wokucutshungulwa kweenxalenye zeplastiki liphantsi.
Iimpawu zenkqubo yePBT
Ukomisa: Le mveliso i-hydrolyzes ngokulula kumaqondo obushushu aphezulu, ngoko ke kubalulekile ukuwomisa ngaphambi kokuba uqwalaselwe. Imeko yokumisa ekhuthazwayo emoyeni yi-120C, iiyure ze-6-8, okanye i-150 ℃, iiyure ze-2-4. Ukufuma kufuneka kube ngaphantsi kwe-0.03%. Ukuba usebenzisa i-hygroscopic dryer, imeko yokumisa ekhuthazwayo yi-150 ° C kwiiyure ezingama-2.5. Ubushushu bokusebenza yi-225 ~ 275 ℃, kwaye ubushushu obucetyiswayo yi-250 ℃. Ubushushu bezinto ezingaphuculwanga ngundo yi-40 ~ 60℃.
Umgodi wokupholisa wesikhunta kufuneka ulungiswe kakuhle ukunciphisa ukugoba kweengxenye zeplastiki. Ubushushu kufuneka buphuluke ngokukhawuleza nangokulinganayo. Kucetyiswa ukuba ububanzi bomgodi wokupholisa ngu-12mm. Uxinzelelo lwenaliti luphakathi (ukuya kuthi ga kwi-1500bar ubuninzi), kwaye izinga lokutofa kufuneka likhawuleze kangangoko (kuba i-PBT iqina ngokukhawuleza).
Umgijimi kunye nesango: Umgijimi wesetyhula uyacetyiswa ukuba anyuse ukutshintshwa koxinzelelo.
Uluhlu lwesicelo oluqhelekileyo
Izixhobo zasendlini (iincakuba ezilungisa ukutya, izinto zokufunxa, iifeni zombane, indawo yokomisa iinwele, izixhobo zekofu, njl.njl.), izixhobo zombane (iiswitshi, izindlu zombane, iibhokisi zefuse, izitshixo zebhodi yezitshixo zekhompyutha, njl. njl.), ishishini lemoto (iigridi zeradiator, iipaneli zomzimba, izigqubuthelo zamavili, iicango neefestile, njl.
Ixesha lokuposa: 18-11-22