Yintoni iChlorinated Polyethylene (cpe) kwaye isetyenziswa phi?
Izinto zokufakelwa kwentambo ze-polyethylene ezi-argonated cpe ezixineneyo ezi-2 ze-silicone rubber blend yi-polyethylene exineneyo (LDPE) kwaye i-polydimethylsiloxane ehambelana ne-ethyl methacrylate (EMA) (PDMS) ngerabha zizinto zokufakelwa kwentambo ezisebenza kakuhle. Iipropati ezahlukeneyo zombane, iipropati zoomatshini kunye neepropati zobushushu zomxube zifundwe. Iziphumo zibonisa ukuba umxube ungasetyenziswa njengezinto zokufakelwa kwe-Thermal, xa kuthelekiswa nezinto zerabha ze-silicone, zisebenza ngcono ngexabiso.
Kangangexesha elide, abantu bebeyithatha irabha yesilicone njengerabha ekhethekileyo yeentambo kubushushu obuphezulu nobuphantsi. Nangona kunjalo, ixabiso elibizayo lerabha yesilicone linciphisa uluhlu lokusetyenziswa kwayo.
I-LDPE yiplastiki enexabiso elikhulu kushishino. Inexabiso eliphantsi kunye neempawu zombane ezibalaseleyo, ngoko ke isetyenziswa kakhulu njenge-polymer yokukhusela kwiintambo ze-voltage eziphakathi neziphantsi kunye neentambo. I-LDPE ayibizi nje kuphela ngexabiso eliphantsi kodwa ikwayi-dielectric constant kunye ne-loss factor ephantsi, i-resistivity ephezulu, kunye neempawu zoomatshini ezibalaseleyo ezingaphantsi kobushushu obuqhelekileyo be-90C, ngoko uninzi lweerabha zokwenziwa, ezifana nerabha ye-styrene-butadiene (SBR), irabha ye-butyl (IR), i-neoprene (CR) njalo njalo zilahlekelwe yinxalenye yesabelo semarike. Xa kuthelekiswa nezinto zokukhusela irabha ye-silicone, umxube we-polydimethylsiloxane (PDMS) kunye ne-LDPE unenzuzo yexabiso eliphantsi ukuze kuhlangatyezwane neendidi ezahlukeneyo. Ukongeza kwiimfuno ezikhethekileyo zeentambo zokuhambisa umbane, ulawulo kunye nezixhobo, abantu baye baphuhlisa ngokuqhubekayo izixhobo ezintsha zokukhusela i-polymer. Nangona kunjalo, iimpawu zoomatshini kunye nokumelana nobushushu kwezinto zombane ze-low-voltage (<10kV) ziphezulu kune
Iimpawu zombane zibaluleke ngakumbi.
Umzekelo; umaleko wokugquma intambo yesithando kufuneka ube nozinzo oluhle lweempawu zoomatshini kubushushu obuphezulu. Ngokufanayo; iimfuno zeentambo ezinomsi omncinci, ezinganyangekiyo yioyile, nezithintela ilangatye nazo zahlukile. Ngoko ke intambo kufuneka isetyenziswe. Ithuba lokufaka isicelo limisela iimfuno zokusebenza okukhethekileyo kwentambo. Ukuwohloka kwerabha kunye nokwakheka komaleko we-oxide kumphezulu kuya kwandisa ukuhanjiswa kwamandla, kuba emva kokuba irabha i-oxidized, kuvela i-polarity phakathi kwee-aggregates ezimnyama zekhabhoni.
Amaqela (afana ne-carboxyl) La maqela abonelela ngendlela emfutshane yee-electron. Kukho izinto ezininzi ekufuneka ziqwalaselwe xa ukhetha izinto eziza kusetyenziswa. Ngokuphathelele ukugquma intambo; ipharamitha ebalulekileyo kukuba ithintela amandla ombane okudlula kungqimba lokugquma. Kwi-direct current (dc), kuyacaca ukuba ukusetyenziswa kwezinto ezixhathisayo kakhulu kunokunciphisa ubukhulu bongqimba lokugquma; kwi-alternating current (ac), i-relative permittivity kunye nelahleko ziphantsi kakhulu.
Into yokusasaza ikwanciphisa ubukhulu bokugquma.
I-ethyl methacrylate (EMA) ingatshintshwa kakhulu ngerabha ye-silicone njengesixhobo sokukhusela ubushushu kusetyenziswa imixube ye-PDMS kwiipropati ezahlukeneyo zombane, iipropati zoomatshini kunye nokumelana nobushushu.
Ukusebenza komlinganiselo ofanayo nowokudibanisa i-LDPE kunye ne-PDMSA blends (50:50).
1. Inkqubo yokukhusela ezinzileyo, i-CPE iya kukhupha i-hydrogen chloride xa ishushu okanye ivulcanized, ngoko ke kufuneka kusetyenziswe iziqinisi ezinefuthe lokufunxwa kwe-asidi kwifomyula, ezifana ne-calcium stearate, i-barium stearate, i-tribasic lead sulfate okanye i-magnesium oxide.
2. Inkqubo yokwenza iplastiki. Iiplastiki ze-Ester zisetyenziswa kakhulu kwi-CPEZ, ezifana ne-dioctyl phthalate (DOP) kunye ne-dioctyl adipate (DOA). Iiparamitha zazo zokunyibilika zisondele kwezo ze-CM. Umthamo olungileyo. Ukusetyenziswa kwe-DOA kunye ne-DOS kwirabha kunokwenza irabha ibe nokumelana nokubanda okugqwesileyo.
3. Inkqubo ye-vulcanization ye-CPE, i-CPE ngerabha egcweleyo, kwaye inkqubo ye-sulfur vulcanization eqhelekileyo ayinakuyicoca ngokufanelekileyo. Ukusetyenziswa kokuqala kwenkqubo ye-vulcanization ye-CPE yinkqubo ye-thiourea, eyona isebenzayo yi-Na-22, kodwa i-Na-22 inesantya esicothayo se-vulcanization, ukusebenza kakubi kokwaluphala, iseti ephezulu yoxinzelelo, kwaye i-Na-22 yi-carcinogen enkulu. Ivelisa ivumba elibi, kwaye ukusetyenziswa kwayo kunqunyelwe kwamanye amazwe.
4. Inkqubo yokuzalisa eqinisayo, i-CPE luhlobo lwerabha engaziqinisekisiyo, efuna inkqubo yokuqinisa ukuze kufumaneke amandla angcono. Inkqubo yayo yokuzalisa eqinisayo ifana neyeglue yenjongo eqhelekileyo. Iarhente yokuqinisa ikakhulu yi-carbon black kunye ne-white carbon black. I-white carbon black inokuphucula ukumelana nokukrazuka kwe-CPE, kwaye inokwenza inkqubo emhlophe ye-metamethyl ukuphucula ukunamathelana phakathi kwe-CPE kunye ne-skeleton. I-CPE inepropathi ephezulu yokuzalisa, kwaye inkqubo yokuzalisa ibandakanya ikakhulu i-calcium carbonate, umgubo we-talcum, udongwe, njl.
Ixesha lokuthumela: Jan-05-2023
