Taw qhia
PE (Polyethylene) wax, feem ntau hu ua polyethylene wax, yog cov khoom siv ntau yam thiab siv dav hauv ntau yam lag luam. Nws cov khoom tshwj xeeb ua rau nws muaj txiaj ntsig zoo ntxiv, tshwj xeeb hauv PVC (Polyvinyl Chloride) ua. Hauv tsab xov xwm no, peb yuav tshawb txog lub ntiaj teb ntawm PE ciab, muab cov ntsiab lus ntawm nws cov yam ntxwv thiab delving rau hauv nws lub luag haujlwm tseem ceeb hauv kev txhim kho cov khoom siv PVC.
PE wax yog ib hom khoom siv hluavtaws tau los ntawm polyethylene, uas yog siv dav siv polymer. Cov quav ciab no yog tsim los ntawm kev ua tib zoo refining thiab ua cov polyethylene, uas ua rau cov khoom siv nrog cov khoom sib txawv uas qiv lawv tus kheej rau ntau yam kev siv. Qee yam tseem ceeb ntawm PE ciab suav nrog:
- Tsawg Melting Point: PE wax feem ntau muaj qhov qis melting point, ua rau nws yooj yim dispersible thiab sib xws nrog lwm yam ntaub ntawv, xws li PVC.
- High Hardness: Nws nthuav tawm siab hardness thiab abrasion tsis kam, uas tuaj yeem txhim kho durability ntawm cov ntaub ntawv nws ntxiv rau.
- Lubrication: PE wax muab cov khoom zoo lubrication, txo kev sib txhuam thiab txhim kho cov txheej txheem ntawm cov ntaub ntawv.
- Chemical Inertness: PE wax yog chemically inert, uas txhais tau tias nws tsis hnov mob nrog lwm yam tshuaj, ua rau nws muaj kev nyab xeeb thiab haum rau ntau yam kev siv.
Kev siv hauv PVC
PE wax yog ib qho khoom muaj txiaj ntsig zoo hauv kev lag luam PVC, uas nws tau siv rau ntau lub hom phiaj, suav nrog:
Lubrication: Ib qho tseem ceeb ntawm kev siv PE wax hauv PVC ua cov khoom siv lubricating. Nws txo kev sib txhuam thaum lub sij hawm extrusion thiab molding txheej txheem, txhim kho cov khoom ntws ntawm PVC tebchaw. Qhov no ua rau smoother ua thiab txhim kho cov khoom zoo.
Tus neeg saib xyuas tso tawm: PE wax ua raws li tus neeg sawv cev tso tawm zoo hauv PVC molding thiab ua. Nws pab tiv thaiv cov khoom siv PVC los ntawm kev ua raws cov pwm thiab cov cuab yeej siv, ua kom yooj yim tshem tawm cov khoom tiav thiab txo cov sij hawm ntau lawm.
Impact Modifier: Hauv PVC formulations, PE ciab tuaj yeem ua tus hloov pauv. Nws txhim kho qhov cuam tshuam tsis zoo ntawm cov ntaub ntawv PVC, ua rau lawv tsim nyog rau cov ntawv thov uas muaj zog thiab tawv yog qhov tseem ceeb.
Ua Npuas Ncauj Ua Npuas Ncauj: PE siv quav ciab qee zaum siv ua npuas dej hauv kev tsim cov PVC foams. Thaum ua ke nrog cov neeg ua haujlwm foaming, nws pab txhawb rau kev tsim cov qauv zoo li qub thiab zoo-cellular, txhim kho cov khoom rwb thaiv tsev ntawm foamed PVC.
Synergy nrog Foaming Agents
Hauv PVC ua npuas ncauj, kev sib koom ua ke ntawm PE wax thiab foaming agents yog qhov tshwj xeeb. Foaming cov neeg ua haujlwm, uas tso cov roj thaum raug tshav kub thaum ua haujlwm, tsim cov qauv cellular hauv foamed PVC. PE wax, raws li ib tug additive, pab nyob rau hauv lub tsim ntawm ib tug ruaj khov thiab zoo ua npuas ncauj qauv los ntawm kev muab lubrication, txo kev sib txhuam, thiab txhim khu kev sib raug zoo ntawm cov foaming agents nyob rau hauv lub PVC matrix.
Xaus
PE wax yog ib qho khoom siv ntau yam uas ua lub luag haujlwm tseem ceeb hauv kev txhim kho cov ntaub ntawv PVC. Nws cov khoom tshwj xeeb, suav nrog qhov tsis tshua muaj melting point, siab hardness, lubrication muaj peev xwm, thiab tshuaj inertness, ua rau nws muaj txiaj ntsig zoo rau kev siv hauv kev lag luam PVC. Txawm hais tias yog cov roj nplua nyeem, tso tawm tus neeg sawv cev, cuam tshuam kev hloov pauv, lossis ua npuas dej, PE wax pab txhawb kev txhim kho kev ua haujlwm, zoo, thiab kev ua haujlwm ntawm cov ntaub ntawv PVC. Kev sib koom ua ke ntawm PE wax thiab foaming agents hauv PVC ua npuas ncauj ua piv txwv ntxiv rau kev hloov pauv thiab ntau yam ntawm cov khoom zoo kawg li no. Raws li kev siv thev naus laus zis txuas ntxiv mus, cov ntawv thov ntawm PE ciab hauv PVC zoo li yuav nthuav dav, muab cov peev txheej tshiab thiab kev tsim kho tshiab hauv thaj teb.
