Iindaba

Umahluko oPhambili–UHMW vs HDPE

I-UHMW kunye ne-HDPE zii-polymers ze-thermoplastic ezinembonakalo efanayo. Umahluko ophambili phakathi kwe-UHMW kunye ne-HDPE kukuba i-UHMW inee-polymer chain ezinde ezinobunzima obukhulu kakhulu be-molecular ngelixa i-HDPE inomlinganiselo ophezulu wamandla-ukuya-kuxinana.

I-UHMW imele i-Ultra High Molecular Weight polyethylene. Ikwachazwa yi-UHMWPE. Igama elithi HDPE limele i-High Density Polyethylene.

Yintoni i-UHMW?

I-UHMW yi-polyethylene enobunzima obukhulu kakhulu bemolekyuli. Luhlobo lwe-polymer ye-thermoplastic. Le polymer compound inee-polymer chain ezinde kakhulu ezinobunzima obukhulu bemolekyuli (malunga ne-5-9 yezigidi ze-amu). Ke ngoko, i-UHMW inobuninzi bemolekyuli. Nangona kunjalo, imbonakalo yale compound ayifani ne-HDPE.

Iipropati ze-UHMW

Iimpawu ezibalulekileyo ze-UHMW zezi zilandelayo.

Yinto eqinileyo.

Inamandla aphezulu okusebenza

Ayinavumba kwaye ayinancasa

Ubuchule bokutyibilika obuphezulu

Ukumelana nokuqhekeka

Ayinamatheli kakhulu

Le khompawundi ayinabungozi, kwaye ikhuselekile.

Ayifunxi manzi.

Zonke iintambo zepolymer kwi-UHMW zinde kakhulu, kwaye zihambelana kwicala elinye. Intambo nganye yepolymer ibotshelelwe nezinye iintambo zepolymer ezijikelezileyo ngokusebenzisa amandla kaVan der Waal. Oku kwenza lonke ulwakhiwo lube nzima kakhulu.

I-UHMW iveliswa ngokupholisha kwe-monomer, i-ethylene. Ukupholisha kwe-ethylene kwenza imveliso ye-polyethylene esisiseko. Ulwakhiwo lwe-UHMW lwahluke kakhulu kolwe-HDPE ngenxa yendlela yokuvelisa. I-UHMW iveliswa xa kukho i-catalyst ye-metallocene (i-HDPE iveliswa xa kukho i-catalyst ye-Ziegler-Natta).

Usetyenziso lwe-UHMW

Imveliso yamavili eenkwenkwezi

Izikrufu

Iirola

Iigiya

Iipleyiti zokutyibiliza

Yintoni i-HDPE?

I-HDPE yi-polyethylene enoxinano oluphezulu. Yinto eyenziwe nge-thermoplastic polymer. Le nto inoxinano oluphezulu xa ithelekiswa nezinye iintlobo ze-polyethylene. Uxinano lwe-HDPE lunikwe njenge-0.95 g/cm3. Ekubeni inqanaba lokudibana kwe-polymer chain kule nto liphantsi kakhulu, ii-polymer chain zipakishwe ngokuqinileyo. Oku kwenza i-HDPE ibe nzima kwaye inika ukumelana okuphezulu. I-HDPE inokuphathwa phantsi kobushushu obumalunga ne-120°C ngaphandle kwempembelelo eyingozi. Oku kwenza i-HDPE ikwazi ukubethelwa ngokwayo.

Iimpawu ze-HDPE

Iimpawu ezibalulekileyo ze-HDPE ziquka,

Kunzima kakhulu

Ukumelana neempembelelo eziphezulu

Iyakwazi ukubethelwa ngokuzenzekelayo

Inkangeleko ecacileyo okanye ekhanyayo

Umlinganiselo ophezulu wamandla ukuya kuxinano

Ubunzima obuphantsi

Akukho okanye akukho kufunxwa kolwelo

Ukumelana neekhemikhali

I-HDPE yenye yezinto zeplastiki ezilula ukuzisebenzisa kwakhona. Ezi mpawu zimisela ukusetyenziswa kwe-HDPE.

Ukusetyenziswa kwe-HDPE

Ezinye izicelo ezibalulekileyo ziquka okulandelayo.

Isetyenziswa njengezikhongozeli zezinto ezininzi ezingamanzi ezifana nobisi kunye nokugcina iikhemikhali ezifana neealcohols.

Ukuvelisa iingxowa zeplastiki zokuthenga

Iitreyi

Izixhobo zombhobho

I-HDPE ikwasetyenziswa kwiibhodi zokusika

Zithini izinto ezifanayo phakathi kwe-UHMW kunye ne-HDPE?

I-UHMW kunye ne-HDPE zenziwe ngee-ethylene monomers.

Zombini zii-polymers ze-thermoplastic.

Zombini zinembonakalo engabonakaliyo.

Isishwankathelo–UHMW vs HDPE

Zombini i-UHMW kunye ne-HDPE zenziwe ngee-ethylene monomers ngokusebenzisa i-polymerization. Umahluko ophambili phakathi kwe-UHMW kunye ne-HDPE kukuba i-UHMW inee-polymer chain ezinde ezinobunzima obukhulu kakhulu be-molecular ngelixa i-HDPE inomlinganiselo ophezulu wamandla ukuya kuxinano.