Lisebelisoa tsa Polyolefin, tse tsejoang ka thepa ea tsona e ntle ea motlakase, ts'ebetso ea ts'ebetso, le ts'ebetso ea tikoloho, e se e le e 'ngoe ea lisebelisoa tse sebelisoang haholo ho kenya letsoho le sheath indastering ea terata le likhoele.
Polyolefin ke li-polymers tsa boima bo phahameng ba molek'hule tse entsoeng ho tsoa ho olefin monomers joalo ka ethylene, propylene, le butene. Li sebelisoa haholo lithapong, liphutheloana, liindastering tsa kaho, tsa likoloi le tsa bongaka.
Ha ho etsoa li-cable, lisebelisoa tsa polyolefin li fana ka dielectric tse tlase kamehla, li-insulation tse phahameng, le khanyetso e ikhethang ea lik'hemik'hale, e netefatsang botsitso le polokeho ea nako e telele. Litšobotsi tsa bona tse se nang halogen le tse ka sebelisoang hape li lumellana le mekhoa ea sejoale-joale ea tlhahiso e tala le e tsitsitseng.
I. Sehlopha ka Mofuta oa Monomer
1. Polyethylene (PE)
Polyethylene (PE) ke resin ea thermoplastic e entsoeng ka polymer ho tsoa ho ethylene monomers 'me ke e' ngoe ea lipolasetiki tse sebelisoang haholo lefatšeng ka bophara. Ho ipapisitsoe le bongata le sebopeho sa limolek'hule, e arotsoe ka mefuta ea LDPE, HDPE, LLDPE le XLPE.
(1)Polyethylene e Tekanyelitsoeng ka Tlase (LDPE)
Sebopeho: E hlahisoa ke polymerization ea mahala ea khatello e phahameng; e na le liketane tse ngata tse nang le makala, tse nang le crystallinity ea 55-65% le density ea 0.91-0.93 g/cm³.
Thepa: E bonolo, e bonaletsa, 'me e hanela mocheso empa e hanyetsa mocheso o itekanetseng (ho fihla ho 80 °C).
Lisebelisoa: Hangata e sebelisoa e le thepa ea sheath bakeng sa likhoele tsa puisano le lipontšo, ho feto-fetoha ha maemo le ho kenya letsoho.
(2) Polyethylene e Phahameng ka ho Fetisisa (HDPE)
Sebopeho: Polymerized tlas'a khatello e tlaase ka li-catalyst tsa Ziegler–Natta; e na le makala a seng makae kapa a se nang letho, khanya e phahameng ea kristale (80-95%), le ho teteana ha 0.94–0.96 g/cm³.
Thepa: Matla a phahameng le ho tiea, botsitso bo botle ba lik'hemik'hale, empa bo fokotsehile hanyane ka mocheso o tlase.
Lits'ebetso: E sebelisoa haholo bakeng sa li-insulation layers, li-conduits tsa puisano, le likhoele tsa likhoele tsa fiber optic, tse fanang ka ts'ireletso ea boemo ba leholimo bo holimo le ts'ireletso ea mochini, haholo bakeng sa ho kenya kantle kapa ka tlas'a lefatše.
(3) Linear Low-Density Polyethylene (LLDPE)
Sebopeho: Copolymerized ho tloha ethylene le α-olefin, e nang le branching e khutšoanyane ea ketane; boima bo pakeng tsa 0.915–0.925 g/cm³.
Properties: E kopanya ho fetoha le maemo le matla le khanyetso e babatsehang ea ho phunya.
Lisebelisoa: E loketse lisebelisoa tsa sheath le ho kenya letsoho ka har'a likhoele tsa motlakase tse tlase le tse mahareng le lithapo tsa taolo, tse matlafatsang tšusumetso le ho hanyetsa ho kobeha.
(4)Polyethylene e hokahantsoeng ka ho Fetisisa (XLPE)
Sebopeho: Marang-rang a mararo a entsoeng ka lik'hemik'hale kapa tsa 'mele (silane, peroxide, kapa electron-beam).
Properties: Ho hanyetsa mocheso o ikhethang, matla a mochini, ho kenya motlakase, le boemo ba leholimo.
Lisebelisoa: E sebelisoa haholo lithapong tsa motlakase tse nang le matla a mahareng le a phahameng, likhoele tse ncha tsa matla, le lithapo tsa likhoele tsa likoloi - e leng thepa ea mantlha ea ho kenya letsoho ha ho etsoa lithapo tsa sejoale-joale.
2. Polypropylene (PP)
Polypropylene (PP), e entsoeng ka polymerized ho tloha propylene, e na le boima ba 0.89-0.92 g/cm³, sebaka se qhibilihisang sa 164-176 °C, le mocheso oa ho sebetsa oa -30 °C ho isa ho 140 °C.
Properties: E bobebe, matla a phahameng a mochini, k'hemik'hale e ntle haholo ea ho hanyetsa, le ho kenya motlakase ho phahameng.
Lisebelisoa: E sebelisoa haholo-holo e le lisebelisoa tse se nang halogen ka har'a likhoele. Ka khatello e ntseng e hola ea ts'ireletso ea tikoloho, polypropylene (XLPP) e kopantsoeng le sefapano (XLPP) le copolymer PP e fetotsoeng li ntse li nka sebaka sa polyethylene ea setso mecheng ea mocheso o phahameng le ea matla a motlakase, joalo ka seporo, matla a moea le likhoele tsa koloi ea motlakase.
3. Polybutylene (PB)
Polybutylene e kenyelletsa Poly(1-butene) (PB-1) le Polyisobutylene (PIB).
Thepa: Ho hanyetsa mocheso o motle haholo, botsitso ba lik'hemik'hale, le ho hanyetsa likhahla.
Likopo: PB-1 e sebelisoa liphaepheng, lifiliming le liphutheloana, ha PIB e sebelisoa ka ho pharaletseng ha ho etsoa li-cable e le gel e thibelang metsi, sealant, le motsoako oa ho tlatsa ka lebaka la ho se khonehe ha khase le lik'hemik'hale tsa lik'hemik'hale-tse atisang ho sebelisoa ka likhoele tsa fiber optic bakeng sa ho tiisa le ho sireletsa mongobo.
II. Lisebelisoa tse ling tse Tloaelehileng tsa Polyolefin
(1) Ethylene–Vinyl Acetate Copolymer (EVA)
EVA e kopanya ethylene le vinyl acetate, e nang le ho feto-fetoha ha maemo le ho hanyetsa serame (e boloka ho fetoha ha maemo ho -50 ° C).
Thepa: E bonolo, ha e amehe, ha e chefo, 'me ha e tsofale.
Lisebelisoa: Ka lithapong, EVA e atisa ho sebelisoa e le sesebelisoa sa ho feto-fetoha ha maemo kapa resin ea carriers ho Low Smoke Zero Halogen (LSZH) formulations, ho ntlafatsa botsitso ba ts'ebetso le ho fetoha habonolo ha eco-friendly insulation le thepa ea sheath.
(2) Ultra-High-Molecular-Weight Polyethylene (UHMWPE)
Ka boima ba limolek'hule bo fetang limilione tse 1.5, UHMWPE ke polasetiki ea boemo bo holimo ea boenjiniere.
Thepa: Khanyetso e phahameng ka ho fetesisa har'a lipolasetiki, matla a matla ka makhetlo a mahlano ho feta ABS, khanyetso e ntle ea lik'hemik'hale, le ho monya mongobo o tlase.
Lisebelisoa: E sebelisoa ka har'a likhoele tsa optical le likhoele tse khethehileng joalo ka ha ho roaloa holimo kapa ho roala lintho tse thata, ho matlafatsa ho hanyetsa tšenyo ea mochini le ho khojoa.
III. Qetello
Lisebelisoa tsa polyolefin ha li na halogen, ha li na mosi o fokolang, ebile ha li chefo ha li chesoa. Li fana ka botsitso bo botle ba motlakase, mochini le ts'ebetso, 'me ts'ebetso ea bona e ka ntlafatsoa le ho feta ka theknoloji ea ho hlomathisa, ho kopanya le ho kopanya.
Ka ho kopanya ha bona polokeho, botsoalle ba tikoloho, le ts'ebetso e tšepahalang, lisebelisoa tsa polyolefin li fetohile sistimi ea mantlha indastering ea sejoale-joale ea terata le lithapo. Ha re sheba pele, ha likarolo tse kang likoloi tse ncha tsa matla, li-photovoltaics, le likhokahano tsa data li ntse li tsoela pele ho hōla, mekhoa e mecha ea lisebelisoa tsa polyolefin e tla tsoela pele ho khanna ts'ebetso e phahameng le tsoelo-pele e tsitsitseng ea indasteri ea cable.
Nako ea poso: Oct-17-2025