Qhov Tseem Ceeb - XLPE vs PVC
XLPE yog crosslinked polyethylene. PVC yog polyvinyl chloride. Qhov sib txawv tseem ceeb ntawm XLPE thiab PVC yog tias XLPE muaj qhov sib txuas ntawm cov saw hlau polymer thaum PVC tsis muaj qhov sib txuas ntawm cov saw hlau polymer.
PVC tseem hu ua polychloroethane. Tias yog vim li cas cov monomer siv los tsim PVC yog chloroethene.
XLPE yog dab tsi?
XLPE yog crosslinked polyethylene. Qee lub sij hawm nws yog denoted li PEX los yog XPE ib yam nkaus. Nws yog ib daim ntawv ntawm polyethylene. Polyethylene yog cov khoom siv polymer. Lub monomer siv los ua cov polymer no yog ethylene. Polyethylene polymer chains yog tsim los ntawm kev ntxiv polymerization ntawm ethylene monomers. XLPE yog tsim los ntawm polyethylene polymer chains los ntawm kev ntxiv tus neeg sawv cev crosslinking. XLPE yog lwm qhov zoo rau PVC.
Daim duab 01: Ib lub raj ua los ntawm XLPE
Properties of XLPE
- Kub-kub cuam tshuam lub zog
- Abrasion resistance
- Crack resistance
- Txo hardness thiab rigidity (piv rau non-crosslinked polyethylene)
- Tshuaj tiv thaiv
- khawb tiv thaiv
txiaj ntsig ntawm kev siv XLPE
- tuaj yeem ua haujlwm nrog ntau qhov voltages
- Tus nqi khoom qis rau kev tsim khoom
- Muab kev tiv thaiv txhua yam
- Thermal resistance tso cai rau nws siv txawm tias qhov kub siab heev
- Kev hloov pauv
- Resistant to noo
- Huab cua tsis kam, yog li, corrosion resistant
Txawm li cas los xij, muaj qee qhov tsis zoo thaum siv cov khoom no thiab. Hnub ci tuaj yeem degrade XLPE. Lub degradation yog considerably sai heev. Thiab tseem, cov khoom no tuaj yeem raug puas los ntawm qee cov kab.
YPVC yog dab tsi?
PVC yog polyvinyl chloride. Nws yog cov khoom siv thermoplastic polymer ua los ntawm chloroethene monomers. PVC yog ib qho ntawm cov khoom siv polymer feem ntau nrog rau polyethylene thiab polypropylene. Muaj ob hom loj ntawm PVC muaj npe raws li daim ntawv nruj thiab hloov tau yooj yim. Rigid PVC yog siv rau kev tsim kho kev xav tau thiab daim ntawv hloov pauv yog siv rau kev xaim thiab cables.
Daim duab 02: Cov kav dej PVC
Muaj 3 kauj ruam ntawm kev tsim PVC:
- Kev hloov pauv ntawm ethene rau hauv 1, 2-dichloroethane (ntawm chlorination)
- Cracking 1, 2-dichloroethane rau hauv chloroethene (HCl raug tshem tawm hauv cov kauj ruam no)
- Polymerization ntawm chloroethene los tsim PVC (ntawm dawb-radical polymerization)
khoom ntawm PVC
- High hardness thiab cov cuab yeej siv tau zoo
- Tsis muaj cua sov tsis zoo
- nplaim retardancy
- High hluav taws xob rwb thaiv tsev
- Tshuaj tiv thaiv
txiaj ntsig ntawm PVC
- Nyob rau hauv
- Nyiaj
- zoo tensile zog
- Resistance rau tshuaj xws li acids thiab bases
Dab tsi yog qhov zoo sib xws ntawm XLPE thiab PVC?
- Ob leeg XLPE thiab PVC yog cov ntaub ntawv yas
- ob leeg tiv taus tshuaj
- ob leeg pheej yig
- XLPE hloov pauv tau thiab muaj cov ntaub ntawv hloov pauv PVC ib yam nkaus
Qhov txawv ntawm XLPE thiab PVC yog dab tsi?
XLPE vs PVC |
|
| XLPE yog crosslinked polyethylene. | YPVC yog polyvinyl chloride. |
| Kev sib txuas | |
| XLPE muaj crosslinks ntawm polymer chains. | PVC tsis muaj qhov sib txuas ntawm cov saw hlau polymer. |
| monomer | |
| XLPE yog tsim los ntawm ethylene monomers. | PVC yog tsim los ntawm chloroethene monomers. |
| txoj kev Polymerizing | |
| XLPE yog tsim los ntawm ntxiv polymerization. | PVC yog tsim los ntawm cov dawb radical polymerization. |
Summary – XLPE vs PVC
Ob leeg XLPE thiab PVC muaj ntau yam zoo sib xws uas tso cai rau lawv siv sib hloov. Qhov txawv ntawm XLPE thiab PVC yog tias XLPE muaj crosslinks ntawm polymer chains whereas PVC tsis muaj crosslinks ntawm polymer chains.
