Musiyano Mukuru–UHMW vs HDPE
UHMW neHDPE mapolymer ethermoplastic ane chitarisiko chakafanana. Musiyano mukuru pakati peUHMW neHDPE ndewekuti UHMW ine cheni refu dzepolymer dzine huremu hwakawanda hwemamorekuru nepo HDPE ine chiyero chakasimba chekusimba kusvika pakuwanda.
UHMW inomiririra Ultra High Molecular Weight polyethylene. Inoratidzwawo neUHMWPE. Izwi rekuti HDPE inomiririra High Density Polyethylene.
Chii chinonzi UHMW?
UHMW ipolyethylene ine huremu hwakawanda kwazvo. Imhando yethermoplastic polymer. Iyi polymer compound ine cheni refu kwazvo dzepolymer dzine huremu hwakawanda (inenge mamiriyoni 5-9 emu). Saka, UHMW ine huwandu hwakanyanya hwemamorekuru. Zvisinei, chitarisiko cheiyi compound hachisiyaniswi neHDPE.
Zvivakwa zveUHMW
Hunhu hwakakosha hweUHMW ndehwekuti:
Chinhu chakaoma.
Ine simba guru rekusimba
Hainhuhwi uye haina kunaka
Kukwanisa kutsvedza kwepamusoro
Kuramba kutsemuka
Hainamati zvakanyanya
Musanganiswa uyu hauna chepfu, uye wakachengeteka.
Hazvitore mvura.
Maketani ese epolymer muUHMW akareba kwazvo, uye anowirirana nenzira imwe chete. Cheni yega yega yepolymer yakabatana nemamwe macheni epolymer akaipoteredza kuburikidza neVan der Waal. Izvi zvinoita kuti chimiro chose chive chakasimba.
UHMW inogadzirwa kubva mukuumbwa kwemonomer, ethylene. Kuumbwa kweethylene kunoumba chigadzirwa che polyethylene. Maumbirwo eUHMW akasiyana zvikuru neeHDPE nekuda kwenzira yekugadzira. UHMW inogadzirwa nekuumbwa kwe metallocene catalyst (HDPE inogadzirwa nekuumbwa kweZiegler-Natta catalyst).
Mashandisirwo eUHMW
Kugadzirwa kwemavhiri enyeredzi
Zvikuruu
Maroller
Magiya
Mahwendefa anotsvedza
Chii chinonzi HDPE?
HDPE ipolyethylene ine density yakakura. Ipolymer yakagadzirwa nethermoplastic. Iyi polymer ine density yakakura kana ichienzaniswa nedzimwe mhando dzepolyethylene. Density yeHDPE inopiwa se0.95 g/cm3. Sezvo huwandu hwemacheni epolymer muchinhu ichi hwakaderera, macheni epolymer akabatanidzwa zvakasimba. Izvi zvinoita kuti HDPE iome uye inopa resistance yakasimba. HDPE inogona kubatwa pasi pekupisa kunosvika 120°C isina kana mhedzisiro inokuvadza. Izvi zvinoita kuti HDPE igone kurovererwa yoga.
Hunhu hweHDPE
Hunhu hwakakosha hweHDPE hunosanganisira,
Zvakaoma Zvishoma
Inodzivirira kuputika zvakanyanya
Zvinogona kurovererwa otomatiki
Chitarisiko chisina kujeka kana kuti chinopenya
Chiyero chesimba guru kusvika pakuwanda kwehuwandu
Huremu hwakareruka
Kusapinza zvinwiwa kana kushoma
Kuramba kwemakemikari
HDPE chimwe chezvinhu zvepurasitiki zviri nyore kushandisa. Izvi ndizvo zvinosarudza mashandisirwo eHDPE.
Mashandisirwo eHDPE
Mamwe mashandisirwo akakosha anosanganisira anotevera.
Inoshandiswa semidziyo yekuisa zvinhu zvakawanda zvakaita semukaka uye kuchengetera makemikari akadai sealcohols.
Kugadzira mabhegi epurasitiki ekutenga
Matrei
Zvishandiso zvepombi
HDPE inoshandiswawo pakucheka mabhodhi
Ndezvipi zvakafanana pakati peUHMW neHDPE?
UHMW neHDPE zvinogadzirwa nema ethylene monomers.
Ose ari maviri mapolymer ethermoplastic.
Ose ari maviri ane chitarisiko chisingasiyaniswi.
| UHMW vs HDPE | |
| UHMW ipolyethylene ine huremu hwakawanda kwazvo. | HDPE ipurasitiki ine density yakakura. |
| Maumbirwo | |
| UHMW ine cheni refu dzepolymer. | HDPE ine cheni pfupi dzepolymer kana tichienzanisa neUHMW. |
| Kurema kweMolecular yePolymer Chains | |
| Maketani epolymer eUHMW ane huremu hwakawanda kwazvo hwemamorekuru. | Maketani epolymer eHDPE ane huremu hushoma hwemamorekuru zvichienzaniswa neUHMW. |
| Kugadzirwa | |
| UHMW inogadzirwa kana paine metallocene catalyst. | HDPE inogadzirwa paine Ziegler-Natta catalyst. |
| Kunyudzwa kweMvura | |
| UHMW hainyudzi mvura (hainyudzi mvura zvachose). | HDPE inogona kunwisa mvura zvishoma. |
Pfupiso–UHMW vs HDPE
UHMW neHDPE zvose zvakagadzirwa nemaethylene monomers kuburikidza nepolymerization. Musiyano mukuru pakati peUHMW neHDPE ndewekuti UHMW ine cheni refu dzepolymer dzine huremu hwakawanda hwemamorekuru nepo HDPE ine chiyero chakakwirira chesimba-kusvika-density.
Nguva yekutumira: Gunyana-11-2022
