Mupendero wekunze kana kuti sheath ndiyo sheath yekunze inodzivirira muchimiro chetambo ye optical, inonyanya kugadzirwa nezvinhu zvePE sheath uye PVC sheath, uye halogen-free flame-retardant sheath zvinhu uye electric tracking sheath zvinhu zvinoshandiswa panguva dzakakosha.
1. PE sheath zvinhu
PE ipfupiso ye polyethylene, inova polymer compound inoumbwa ne polymerization ye ethylene. Zvinhu zve polyethylene sheath zvinogadzirwa nekusanganisa uye granulating polyethylene resin ne stabilizer, carbon black, antioxidant uye plasticizer mune imwe ratio. Zvinhu zve polyethylene sheath zve optical cable sheaths zvinogona kukamurwa kuita low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE), medium-density polyethylene (MDPE) uye high-density polyethylene (HDPE) zvichienderana nehuwandu. Nekuda kwekusiyana kwehuwandu hwavo uye magadzirirwo emamorekuru, vane hunhu hwakasiyana. Low-density polyethylene, inozivikanwawo se high-pressure polyethylene, inoumbwa ne copolymerization ye ethylene pa high pressure (pamusoro pe 1500 atmospheres) pa 200-300°C ne oxygen se catalyst. Nokudaro, molecular chain ye low-density polyethylene ine matavi akawanda ehurefu hwakasiyana, ane mazinga e chain branching akakwira, chimiro chisina kurongeka, crystallinity yakaderera, uye flexibility yakanaka uye elongation. Polyethylene ine huwandu hwakanyanya, inozivikanwawo se polyethylene ine huwandu hwakanyanya, inoumbwa ne polymerization ye ethylene pa low pressure (1-5 atmospheres) uye 60-80°C ne aluminium ne titanium catalysts. Nekuda kwekupararira kwakamanikana kwe molecular weight ye high-density polyethylene uye kurongeka kwakarongeka kwema molecules, ine hunhu hwakanaka hwemakanika, inodzivirira makemikari zvakanaka uye inoshandiswa zvakanyanya pakupisa. Medium-density polyethylene sheath material inogadzirwa nekubatanidza high-density polyethylene ne low-density polyethylene muchikamu chakakodzera, kana ne polymerizing ethylene monomer ne propylene (kana monomer yechipiri ye 1-butene). Naizvozvo, mashandiro e medium-density polyethylene ari pakati pe high-density polyethylene ne low-density polyethylene, uye ine flexible ye low-density polyethylene uye high-density resistance uye tensile strength ye high-density polyethylene. Linear low-density polyethylene ino polymerized ne low-pressure gas phase kana solution method ne ethylene monomer ne 2-olefin. Matavi e linear low-density polyethylene ari pakati pe low-density ne high-density, saka ine Environmental stress cracking resistance yakanaka. Kuramba kukanganiswa kwesimba rezvakatipoteredza chiratidzo chakakosha chekuziva mhando yezvinhu zvePE. Izvi zvinoreva chiitiko chekuti chinhu chakayedzwa chakakanganiswa nekukanganiswa kwesimba munzvimbo yesurfactant. Zvinhu zvinokanganisa kukanganiswa kwesimba rezvinhu zvinosanganisira: huremu hwemorekuru, kugoverwa kwesimba remorekuru, kristallinity, uye microstructure yecheni yemamorekuru. Huremu hwemorekuru hwakakura, kupararira kwesimba remorekuru kwakatetepa, kubatana kwakawanda pakati pemawafers, kuramba kukanganiswa kwesimba rezvakatipoteredza kwezvinhu zviri nani, uye hupenyu hwebasa rezvinhu hurefu; panguva imwe chete, kupenya kwesimba rezvinhu kunokanganisawo chiratidzo ichi. Kudzika kwesimba rekristallinity, ndiko kuri nani kuramba kukanganiswa kwesimba rezvakatipoteredza kwezvinhu zviri nani. Simba rekumanikidzwa nekureba pakuputsika kwezvinhu zvePE chimwe chiratidzo chekuyera mashandiro echinhu, uye zvinogonawo kufanotaura kuguma kwekushandiswa kwezvinhu. Kabhoni iri muzvinhu zvePE inogona kudzivirira zvinobudirira kuputsika kwemwaranzi ye ultraviolet pachinhu chacho, uye ma antioxidants anogona kuvandudza zvinobudirira antioxidant properties yezvinhu.
2. Zvinhu zvePVC sheath
Zvinhu zvinodzora moto zvePVC zvine maatomu echlorine, ayo achatsva mumoto. Kana zvichitsva, zvinoora zvoburitsa gasi reHCL rinoparadza uye rine chepfu, izvo zvinozokonzera kukuvara kwechipiri, asi zvinodzima zvoga kana zvabuda mumoto, saka zvine hunhu hwekusaparadzira murazvo; panguva imwe chete, zvinhu zvePVC sheath zvine kuchinjika kwakanaka uye kugona kuwedzera, uye zvinoshandiswa zvakanyanya mutambo dzemagetsi dzemukati.
3. Zvinhu zvemugodhi zvinodzora moto zvisina halogen
Sezvo polyvinyl chloride ichizoburitsa magasi ane chepfu kana ichitsva, vanhu vakagadzira zvinhu zvemugodhi zvinodzivirira moto zvishoma, zvisina halogen, zvisina chepfu, uye zvakachena, ndiko kuti, kuwedzera zvinhu zvinodzivirira moto zvisina organic Al(OH)3 naMg(OH)2 kuzvinhu zvemugodhi, izvo zvinoburitsa mvura yekristaro kana zvasangana nemoto uye zvinotora kupisa kwakawanda, nokudaro zvichidzivirira tembiricha yezvinhu zvemugodhi kuti isakwire uye kudzivirira kutsva. Sezvo zvinhu zvinodzivirira moto zvisina organic zvichiwedzerwa kune zvinhu zvemugodhi zvisina halogen, conductivity yemapolymers ichawedzera. Panguva imwe chete, maresini nezvinhu zvinodzivirira moto zvisina organic zvinhu zvakasiyana zvachose zvezvikamu zviviri. Panguva yekugadzirisa, zvakakosha kudzivirira kusanganiswa kusina kuenzana kwezvinodzivisa moto munharaunda. Zvinhu zvinodzivirira moto zvisina organic zvinofanira kuwedzerwa muhuwandu hwakakodzera. Kana chikamu chacho chakakura zvakanyanya, simba remuchina uye kureba pakuputsika kwezvinhu zvichadzikira zvakanyanya. Zviratidzo zvekuongorora hunhu hwezvinodzivirira moto zvezvinodzivirira moto zvisina halogen iokisijeni indekisi uye huwandu hweutsi. Okisijeni indekisi ndiyo huwandu hushoma hweokisijeni hunodiwa kuti zvinhu zvirambe zvichipisa zvakanaka mugasi rakasanganiswa reokisijeni nenitrogen. Kana chiyero cheokisijeni chakakura, zvinoita kuti zvinhu zvinodzora moto zvive nani. Kuwanda kweutsi kunoverengerwa nekuyera kufambiswa kwechiedza chinotenderera chinopfuura nemuutsi hunogadzirwa nekupiswa kwechinhu munzvimbo yakati uye kureba kwenzira yechiedza. Kuwanda kweutsi kuderera, kubuda kweutsi kunoderedza uye kushanda kwechinhu chacho kuri nani.
4. Chishongo chemugodhi chinodzivirira mavanga emagetsi
Kune tambo dzemagetsi dzinozvitsigira (ADSS) dzakawanda dziri mushongwe imwe chete dzine mitsetse yepamusoro yemagetsi muhurongwa hwekutaurirana kwemagetsi. Kuti vakunde simba remagetsi emagetsi anopinza magetsi akawanda pasheath yetambo, vanhu vakagadzira nekugadzira zvinhu zvitsva zvinodzivirira mavanga emagetsi, zvinhu zvinodzivirira mavanga emagetsi nekudzora zvakanyanya zviri mu carbon black, saizi uye kupararira kwezvikamu zvitema zvekabhoni, vachiwedzera zvimwe zvinhu zvakakosha kuti sheath iite zvakanaka inodzivirira mavanga emagetsi.
Nguva yekutumira: Nyamavhuvhu-26-2024