Chii chinonzi Chlorinated Polyethylene (cpe) uye Inoshandiswa kupi?
Argonated polyethylene cpe low density polyethylene 2 silicone rubber blend cable insulation material yakaderera density polyethylene (LDPE) uye polydimethylsiloxane inopindirana ne ethyl methacrylate (EMA) (PDMS) musanganiswa werabha inobudirira inodzivirira kupisa tambo yekudzivirira tambo. Zvinhu zvakasiyana-siyana zvemagetsi, mechanical properties uye thermal properties yemusanganiswa zvakadzidzwa. Mhedzisiro yacho inoratidza kuti musanganiswa unogona kushandiswa seThermal insulation material, zvichienzaniswa nesilicone rubber material, ine mutengo uri nani kuita.
Kwenguva refu, vanhu vaiona silicone rabha seyakakosha rabha yetambo mune dzakasiyana siyana tembiricha yakakwira uye yakaderera. Nekudaro, mutengo unodhura wesilicone rubha unoganhura huwandu hwekushandisa kwayo.
LDPE ipurasitiki ine huwandu hukuru muindasitiri. Iyo ine mutengo wakaderera uye yakanakisa magetsi emagetsi, saka inoshandiswa zvakanyanya sepolymer inodzivirira mukati uye yakaderera voltage waya netambo. LDPE haina kungodzikira chete mumutengo asiwo ine Yakaderera dielectric inogara uye kurasikirwa chinhu, yakakwirira resistivity, uye yakanakisa michina zvinhu pazasi pe ambient tembiricha ye90C, saka akawanda ekugadzira rubber, senge styrene-butadiene rubber (SBR), butyl rabha (IR). ), neoprene(CR) zvichingodaro vakarasikirwa nechikamu chemusika. Kuenzaniswa nesilicone rubber insulation material, musanganiswa wepolydimethylsiloxane (PDMS) uye LDPE ine mukana wemutengo wakaderera kuitira kuti isangane nemagiredhi akasiyana, Pamusoro pezvakakosha zvinodikanwa zvetambo dzekufambisa magetsi, kutonga uye zviridzwa, vanhu vakaramba vachigadzira. zvakasiyana-siyana zvitsva zvepolymer insulation zvinhu. Nekudaro, izvo zvemakanika zvivakwa uye kupisa kwekudzivirira kweyepasi-voltage magetsi system (<10kV) zvinhu zvakakwirira kupfuura.
Zvinhu zvemagetsi zvinonyanya kukosha.
Semuyenzaniso; iyo cable insulation layer yechoto inofanirwa kuve nekugadzikana kwakanaka kwema mechanical properties pakupisa kukuru. Saizvozvowo; zvinodiwa patambo dzine hutsi hushoma, dzisingadziviri mafuta, uye dzinodzora moto zvakasiyanawo. Saka tambo inofanirwa Chiitiko chekunyorera chinotarisa zvinodikanwa zvekuita kwakakosha kwetambo. Iyo oxidative degradation yerabha uye kuumbwa kweiyo oxide layer pamusoro pepamusoro kuchawedzera conductivity, nekuti mushure mekunge rabha yaiswa oxidized, polarity inogadzirwa pakati pekabhoni dema aggregates.
Mapoka (akadai secarboxyl) Mapoka aya anopa nzira pfupi yemaerekitironi. Pane zvinhu zvakati wandei zvekufunga nezvazvo pakusarudza chinhu chekushandisa. Panyaya yekudzivirira kwetambo; yakakosha parameter ndiyo Miganho yekugona kwezvino kupfuura nepakati peiyo insulation layer. Kune yakananga ikozvino (dc), zviri pachena kuti kushandiswa kwepamusoro-kupikisa zvinhu kunogona kuderedza kuwanda kweiyo insulation layer; yekuchinjanisa ikozvino (ac), kubvumirwa kwehukama uye kurasikirwa kwakaderera.
Dissipation factor inoderedzawo ukobvu hwekudzivirira.
Ethyl methacrylate (EMA) inogona kunyanya kutsiviwa nesilicone rabha sechinhu chekudzivirira chichishandisa PDMS inosanganiswa yezvinhu zvakasiyana-siyana zvemagetsi, zvivakwa zvemagetsi uye kudzivirira kupisa.
Kubudirira kwehuwandu hwakafanana sehunoenderana neLDPE uye PDMSA inosanganiswa (50:50).
1. Stable kudzivirira system, CPE ichasunungura hydrogen chloride kana inopisa kana vulcanized, saka stabilizers ane acid absorption effect inofanira kushandiswa mukugadzirisa, zvakadai se calcium stearate, barium stearate, tribasic lead sulfate kana magnesium oxide.
2. Plasticizing system. Ester plasticizers inowanzoshandiswa muCPEZ, yakadai se dioctyl phthalate (DOP) uye dioctyl adipate (DOA). Iwo solubility parameters ari pedyo neaya eCM. Kugona kwakanaka. Iko kushandiswa kweDOA neDOS murabha kunogona kupa rabha nekunyanya kutonhora kupikisa.
3. Iyo vulcanization system yeCPE, CPE irabha yakazara, uye yakajairika sulfur vulcanization system haigone kuisvibisa zvinobudirira. Kushandiswa kwekutanga kweCPE vulcanization system ndeye thiourea system, iyo inonyanya kushanda iri Na-22, asi Na-22 ine inononoka vulcanization kumhanya, kusaita kuchembera kwakashata, yakanyanya compression set, uye Na-22 ihombe kenza. Inobudisa kunhuhwirira kusingafadzi, uye kushandiswa kwayo kwakadziviswa kunze kwenyika.
4. Kusimbisa hurongwa hwekuzadza, CPE imhando yerabha isina-self-reinforcing, inoda hurongwa hwekusimbisa kuti uwane simba rakanaka. Yayo inosimbisa yekuzadza sisitimu yakafanana neyeyakajairwa-chinangwa chekunamatira. Iyo yekusimbisa iyo inonyanya kuve kabhoni dema uye chena kabhoni dema. White kabhoni dema inogona kuvandudza kuramba kwemisodzi yeCPE, uye inogona kugadzira metamethyl chena sisitimu yekuvandudza kunamatira pakati peCPE uye skeleton. batanidza. CPE ine yakakwirira yekuzadza chivakwa, uye iyo yekuzadza sisitimu inonyanya kusanganisira calcium carbonate, talcum poda, ivhu, nezvimwe.
Nguva yekutumira: Jan-05-2023
