Lisebelisoa tsa terata le lithapo li ka aroloa ka lisebelisoa tse tsamaisang, lisebelisoa tsa insulating, lisebelisoa tse sireletsang, lisebelisoa tsa tšireletso, lisebelisoa tsa ho tlatsa joalo-joalo ho ea ka likarolo le mesebetsi ea tsona.Ho ea ka thepa ea thepa, e ka aroloa ka tšepe (koporo, aluminium, motsoako oa aluminium, tšepe), polasetiki (PVC, PE, PP, XLPE / XL-PVC, PU, ​​TPE / PO), rabara, joalo-joalo. ea lisebelisoa tsena li tloaelehile ho mehaho e 'maloa.Haholo-holo lisebelisoa tsa thermoplastic, tse kang polyvinyl chloride, polyethylene, hafeela phetoho ea karolo ea foromo e ka sebelisoa ho kenya letsoho kapa sheath.

Ka mor'a moo, re kenyelletsa terata e tloaelehileng e se nang tšepe le lisebelisoa tse tala tsa cable

E 'ngoe, polyvinyl chloride (PVC)

PVC hangata e sebelisoa e le lisebelisoa tse sireletsang le tse sireletsang.PVC e le ts'ebetso ea ts'ebetso ea terata le ea cable: ha ho bonolo ho chesa, ho hanyetsa botsofali, ho hanyetsa oli, khanyetso ea lik'hemik'hale, ho hanyetsa tšusumetso, mebala e bonolo;Leha ho le joalo, ka lebaka la sebopeho se seholo sa dielectric, hangata e sebelisoa feela e le thepa ea ho kenya letsoho ea thapo ea motlakase o tlase le thapo ea taolo.

PVC e le terata le ts'ebetso ea sheath ea cable: ka ts'ebetso e ntle ea ho apara, ho hanyetsa oli, acid, alkali, libaktheria, mongobo le khanya ea letsatsi, 'me ketso ea lelakabe e na le ts'ebetso ea ho tima;PVC sheath e na le mocheso o tlase oa ho sebetsa oa -40 ° C le mocheso o phahameng oa ho hanyetsa oa 105 ° C.

Ea bobeli, polyethylene (PE)

PE kakaretso ea thepa ea 'mele: boka bo bosoeu, bo khanyang, bo bonolo ebile bo thata, bo khona ho otlolla hanyenyane, bo bobebe ho feta metsi, bo se nang chefo;Litšobotsi tsa ho tuka: ho cha, ho tloha mollong ho tsoela pele ho tuka, karolo e ka holimo ea lelakabe e mosehla 'me karolo e ka tlaase e putsoa, ​​e qhibilihang e rotha ha e chesa, e fana ka monko oa ho chesa parafine;Polyethylene process melting point range ke 132 ~ 1350C, mocheso oa khase ke 3400C, mocheso o tukang o itlelang feela ke 3900C.

Polyethylene (PE) ka kakaretso e arotsoe ka LDPE, MDPE, HDPE, FMPE mekhahlelo e mengata.

1, LDPE: polyethylene e tlaase ke e 'ngoe ea lihlopha tse bobebe ka ho fetisisa tsa polyethylene, tse tsejoang hape e le polyethylene e nang le khatello e tlaase, litšoaneleho tsa sebopeho ha li na moeli, li na le kristalline e tlaase le ntlha e nolofatsang, e na le ho feto-fetoha ha maemo, elongation, ho kenya motlakase, ho pepeseha le ho feta. matla a tshusumetso e phahameng.Polyethylene e fokolang e na le matla a fokolang a mochine, mocheso o fokolang oa mocheso 'me, ho phaella moo, bofokoli bo totobetseng ke ho hanyetsa ho futsanehileng ha khatello ea tikoloho.

2, MDPE: polyethylene ea mahareng, e tsejoang hape e le polyethylene ea khatello e mahareng le Philip polyethylene, ts'ebetso ea eona le polyethylene phase nuo e phahameng haholo, fektheri ha e sa sebelisoa, ha e hlalosoe mona.

3, HDPE, polyethylene e phahameng haholo e nang le polyethylene e tlaase, e tsejoang hape e le polyethylene ea khatello e phahameng, e na le ts'ebetso e tsotehang e akaretsang, e kang ho ntlafatsa mocheso oa mocheso le matla a mochine, joalo ka bolelele ba ho tsitsa, matla a ho khumama, matla a ho hatella le matla a ho kuta), le e ntlafalitse mouoane oa metsi le thepa ea thibelo ea khase, ho hanyetsa khatello ea kelello ea tikoloho ho phahametse.

4, FMPE: PE e foamed ke sesebelisoa sa foam se sebelisoang ka ho fetisisa, se sebelisa polyethylene ea lik'hemik'hale e nang le foamed, kamehla dielectric ea eona e ka fokotsoa hoo e ka bang 1.55.Haeba theknoloji e ncha ea ho amohela foaming ea 'mele, ke hore, ha extrusion ho khase ea inert (naetrojene kapa moea) ka har'a foam e entsoeng ka polyethylene e qhibilihisitsoeng, boholo bo bonyenyane ba bubble bo ka fumanoa ho tloha foam ea polyethylene, tekanyo ea ho foaming e ka laoloa pakeng tsa 35-40. %, ho feta 40% Zhui, nako ea eona ea dielectric e ka fokotsoa ho 1.20 kapa ho feta, 'me hobane ha e sebelise lik'hemik'hale tse nang le bokooa ba lik'hemik'hale, ho kenya letsoho ha ho na masala a mahlahahlaha,' me tahlehelo ea dielectric e ka fokotseha haholo, e seng e fihlile. boemo ba ho kenya moea.

Polyethylene e na le ts'ebetso e ntle haholo ea ho kenya motlakase 'me e sebelisoa haholo ho insulation ea cable ea puisano.E le ho ntlafatsa matšoao a tekheniki le moruo oa likhoele tsa puisano, polyethylene ea foam e sebelisoa hangata.E le ho ntlafatsa ts'ebetso ea khatello ea tikoloho, ntle le ts'ebeliso ea XPE, e ka boela ea khetha index ea melting ea PE e nyenyane.Ka kakaretso, ha boima ba limolek'hule bo le bonyenyane (ho phahamela index ea melting), ho mpefala ha khatello ea tikoloho ho hanyetsa khatello ea maikutlo.Lenane la ho qhibiliha le ka tlase ho 0.4 le ka qoba ho senyeha ha khatello ea tikoloho.Boima ba 0.950, index ea ho qhibiliha ea mefuta e nyane, e hanyetsanang ka ho fetesisa le khatello ea tikoloho.Haeba letsoalo le le leholo ho feta 0.95, khanyetso ea khatello ea tikoloho le eona e mpe le ho feta, empa sekhahla se tlase se nang le index e ts'oanang ea ho qhibiliha se molemo haholo.Leha ho le joalo, ho bopa ha HDPE hangata ho na le khatello ea kelello e setseng, e lokelang ho lebisoa tlhokomelo ho ts'ebetsong ea ts'ebeliso.

Ho kopanya PE le EVA ka tekanyo e itseng ho ka ntlafatsa ho senyeha ha khatello ea tikoloho;Ho kopantsoe le PP ho ka ntlafatsa ho thatafala;E kopantsoe le PE ea boholo bo fapaneng, e ka fetola bonolo le boima ba eona.

Ethylene - vinyl acetate copolymer (EVA)

EVA ke mofuta oa thermoplastic e nang le elastic joaloka rabara ea nuo, ts'ebetso ea eona le litaba tsa vinyl acetate (VA) li na le kamano e ntle: e nyenyane ea VA e tšoana le polyethylene e phahameng, 'me VA e tšoana le rabara.EVA nuo high pressure polyethylene e nang le litaba tse tlase tsa VA, matla a ts'ebetso e bonolo le e ntle, e loketseng ho etsa thepa e kopaneng.

EVA e na le elasticity e ntle le ho feto-fetoha ha mocheso o tlase, ho hanyetsa lik'hemik'hale, ho hanyetsa boemo ba leholimo, le LDPE copolymerization, e ka ntlafatsa ho hanyetsa ha tikoloho ea LDPE, ho hanyetsa tšusumetso, ho thatafala le ho khomarela pakeng tsa conductor le insulation.

Tetrapolypropylene (PP)

Matla a khoheli a khethehileng a polypropylene ke 0.89 ho ea ho 0.91, e leng eona e nyenyane ka ho fetisisa ea li-plastiki tse tloaelehileng.E na le matla a matla a mochini, mocheso o phahameng ka ho fetisisa o nolofatsang ka har'a resin ea thermoplastic, le khanyetso e ntle ea mocheso o tlase le ho hanyetsa botsofali.Ke feela ho hanyetsa ha optical rotation ho fokolang hanyenyane, empa ho ka ntlafatsoa ka copolymerization le stabilizers.

Lintho tse akaretsang tsa polypropylene: PONAHALO ea PP e tšoana haholo le HDPE, ke boka ba boka bo bosoeu, bo bonaletsang ho feta PE, bo se nang chefo, bo tukang 'me bo tla tsoela pele ho tuka ka mor'a mollo, le ho lokolla monko oa petroleum nuo.

Ha ho bapisoa le polyethylene, polypropylene e na le litšobotsi tse latelang tse fapaneng:

1, ho thatafala ha sefahleho sa PP ho phahame ho feta PE, ho hanyetsa le bokhoni ba ho koba bo botle haholo, kahoo PP e tsejoa e le "plastiki e matla e tlaase ea matla a phahameng".

2, PP e betere ho feta PE molemo o mong ke hoo e ka bang ha ho na ts'ebetso ea khatello ea tikoloho, PP e na le khanyetso e ntle ea khatello ea tikoloho.Leha ho le joalo, ka lebaka la maemo a phahameng a sebopeho sa limolek'hule tsa PP, ts'ebetso ea eona ea phello mochesong oa kamore le mocheso o tlase o fokola haholo.

3, Ts'ebetso ea ho kenya motlakase ea PP: PP ke lisebelisoa tse se nang polar, kahoo ho na le motlakase o motle oa motlakase.

Motlakase oa eona ha e le hantle o tšoana le LDPE, 'me ha o fetohe ka bongata bo pharaletseng.Ka lebaka la boima ba eona bo tlaase haholo, kamehla dielectric e nyenyane ho feta LDPE (ε = 2.0 ~ 2.5), tahlehelo ea dielectric Angle tangent ke 0.0005 ~ 0.001, resistivity ea molumo oa 1014 ω.M, matla a tšimo ea ho senyeha a boetse a phahame haholo, 30MV/m;Ntle le moo, ho monya metsi ho nyane haholo, ka hona PP e ka sebelisoa e le lisebelisoa tse phahameng tsa insulation.

Lintho tse hlano tsa polyester

Mofuta ona oa thepa o tšoauoa ka modulus e phahameng, khanyetso e phahameng ea meokho, khanyetso e phahameng ea ho roala, elasticity e phahameng le lag e tlase, moeli o kaholimo oa mocheso o sebetsang ke 1500C, ho feta rabara e meng ea thermoplastic, empa hape e na le khanyetso e ntle ea oli, ho hanyetsa solvent. litšobotsi.