Iyini i-Chlorinated Polyethylene (cpe) futhi isetshenziswa kuphi?
Izinto zokufakelwa ikhebula ze-polyethylene e-argonated cpe low density polyethylene 2 silicone rubber blend ziyi-low density polyethylene (LDPE) kanti i-polydimethylsiloxane ehambisana ne-ethyl methacrylate (EMA) (PDMS) rubber blend iyindlela yokufakelwa ikhebula evikela ukushisa. Izakhiwo ezahlukene zikagesi, izakhiwo zemishini kanye nezakhiwo zokushisa zenhlanganisela zihlolisisiwe. Imiphumela ikhombisa ukuthi ingxube ingasetshenziswa njengezinto zokufakelwa ukushisa, uma kuqhathaniswa nezinto zerabha ze-silicone, inokusebenza okungcono kwezindleko.
Sekuyisikhathi eside abantu bebheka irabha ye-silicone njengerabha ekhethekile yezintambo emazingeni okushisa aphezulu naphansi. Kodwa-ke, intengo ebizayo yerabha ye-silicone inciphisa ububanzi bokusetshenziswa kwayo.
I-LDPE iyipulasitiki enenani elikhulu embonini. Inezindleko eziphansi kanye nezakhiwo zikagesi ezinhle kakhulu, ngakho-ke isetshenziswa kabanzi njenge-polymer yokuvikela ezintambo nasezintanjeni ze-voltage eziphakathi nendawo neziphansi. I-LDPE ayigcini nje ngokuba nezindleko eziphansi kodwa futhi iphansi kakhulu kune-dielectric constant kanye ne-loss factor, i-resistivity ephezulu, kanye nezakhiwo ezinhle kakhulu zemishini ngaphansi kwezinga lokushisa elimaphakathi elingu-90C, ngakho-ke iningi lama-rubber okwenziwa, njenge-styrene-butadiene rubber (SBR), i-butyl rubber (IR), i-neoprene(CR) njalonjalo lilahlekelwe yingxenye yesabelo semakethe. Uma kuqhathaniswa nezinto zokuvikela irabha ze-silicone, ingxube ye-polydimethylsiloxane (PDMS) kanye ne-LDPE inezinzuzo zezindleko eziphansi ukuze ihlangabezane namazinga ahlukahlukene. Ngaphezu kwezidingo ezikhethekile zezintambo zokudlulisa amandla, ukulawula kanye nezinsimbi, abantu bathuthukise njalo izinto ezintsha zokuvikela i-polymer. Kodwa-ke, izakhiwo zemishini kanye nokumelana nokushisa kwezinto zesistimu kagesi eziphansi (<10kV) ziphakeme kune
Izakhiwo zikagesi zibaluleke kakhulu.
Isibonelo; ungqimba lokufakelwa kwekhebula lesithando kufanele lube nokuqina okuhle kwezakhiwo zemishini ekushiseni okuphezulu. Ngokufanayo; izidingo zezintambo ezinentuthu ephansi, ezingamelani namafutha, nezivimbela umlilo nazo zihlukile. Ngakho-ke ikhebula kufanele lisetshenziswe. Isikhathi sokusetshenziswa sinquma izidingo zokusebenza okukhethekile kwekhebula. Ukuwohloka kwerabha kanye nokwakheka kongqimba lwe-oxide ebusweni kuzokhulisa ukuhanjiswa kwamandla, ngoba ngemva kokuba irabha i-oxidized, kukhiqizwa i-polarity phakathi kwama-aggregates amnyama ekhabhoni.
Amaqembu (njenge-carboxyl) La maqembu ahlinzeka ngendlela emfushane yama-electron. Kunezici eziningana okufanele uzicabangele lapho ukhetha izinto zokusetshenziswa. Ngokuphathelene nokufakwa kwekhebula; ipharamitha ebalulekile ukuthi ikhawulela ikhono lamanje lokudlula kungqimba lokufakwa kwe-insulation. Ku-direct current (dc), kusobala ukuthi ukusetshenziswa kwezinto ezinokumelana okuphezulu kunganciphisa ukujiya kwengqimba yokufakwa kwe-insulation; ku-alternating current (ac), ukuvumelana kanye nokulahlekelwa kuphansi kakhulu.
Isici sokushabalalisa sinciphisa ukujiya kokushisa.
I-ethyl methacrylate (EMA) ingashintshwa kakhulu ngerabha ye-silicone njengento yokuvikela kusetshenziswa izingxube ze-PDMS zezakhiwo ezahlukene zikagesi, izakhiwo zemishini kanye nokumelana nokushisa.
Ukusebenza kahle kwenani elifanayo ne-compatibilizer ye-LDPE kanye ne-PDMSA blends (50:50).
1. Uhlelo lokuvikela oluzinzile, i-CPE izokhipha i-hydrogen chloride uma ishiswa noma ivulcanized, ngakho-ke iziqinisi ezinomphumela wokumuncwa kwe-asidi kufanele zisetshenziswe kule fomula, njenge-calcium stearate, i-barium stearate, i-tribasic lead sulfate noma i-magnesium oxide.
2. Uhlelo lokwenza ipulasitiki. Ama-ester plasticizer avame ukusetshenziswa ku-CPEZ, njenge-dioctyl phthalate (DOP) kanye ne-dioctyl adipate (DOA). Amapharamitha awo okuncibilika asondele kulawo e-CM. Umthamo omuhle. Ukusetshenziswa kwe-DOA kanye ne-DOS erabheni kunganika irabha ukumelana nokubanda okuhle kakhulu.
3. Uhlelo lwe-vulcanization lwe-CPE, i-CPE iyirabha egcwele, futhi uhlelo oluvamile lwe-sulfur vulcanization alukwazi ukuyivundisa ngempumelelo. Ukusetshenziswa kokuqala kohlelo lwe-vulcanization lwe-CPE uhlelo lwe-thiourea, olusebenza kakhulu yi-Na-22, kodwa i-Na-22 inejubane le-vulcanization elihamba kancane, ukusebenza kabi kokuguga, isethi yokucindezela okuphezulu, kanti i-Na-22 iyi-carcinogen enkulu. Ikhiqiza iphunga elibi, futhi ukusetshenziswa kwayo kunqunyelwe kwamanye amazwe.
4. Uhlelo lokugcwalisa oluqinisayo, i-CPE uhlobo lwerabha engaziqiniseli, edinga uhlelo lokuqinisa ukuze kutholakale amandla angcono. Uhlelo lwayo lokugcwalisa oluqinisayo lufana nolwe-glue-purpose-purpose. I-ejenti yokuqinisa ikakhulukazi i-carbon black kanye ne-carbon black emhlophe. I-carbon black emhlophe ingathuthukisa ukumelana nokudabuka kwe-CPE, futhi ingakha uhlelo olumhlophe lwe-metamethyl ukuthuthukisa ukunamathelana phakathi kwe-CPE kanye nohlaka lwamathambo. I-CPE inempahla ephezulu yokugcwalisa, futhi uhlelo lokugcwalisa luhlanganisa kakhulu i-calcium carbonate, i-talcum powder, ubumba, njll.
Isikhathi sokuthunyelwe: Jan-05-2023
