Umahluko oPhambili-UHMW vs HDPE
I-UHMW kunye ne-HDPE ziipholima ze-thermoplastic ezinenkangeleko efanayo.Umahluko ophambili phakathi kwe-UHMW kunye ne-HDPE kukuba i-UHMW iqulathe amatyathanga epolymer amade anobunzima beemolekyuli eziphakamileyo ngelixa i-HDPE inomlinganiselo ophezulu wokuqina wokuxinana.
I-UHMW imele i-Ultra High Molecular Weight polyethylene.Ikwachazwa ngu-UHMWPE.Igama elithi HDPE limele i-High Density Polyethylene.
Yintoni i-UHMW?
I-UHMW yi-ultra-high molecular weight polyethylene.Luhlobo lwepolymer thermoplastic.Le khompawundi yepolymer inamatyathanga epolymer amade kakhulu anobunzima bemolekyuli ephezulu (malunga ne-5-9 yezigidi ze-amu).Ke ngoko, i-UHMW inowona xinano luphezulu lweemolekyuli.Nangona kunjalo, inkangeleko yale khompawundi ayibonakali kuleyo ye-HDPE.
Iipropati ze-UHMW
Iimpawu ezibalulekileyo ze-UHMW zezi zilandelayo.
Yimpahla enzima.
Inamandla empembelelo ephezulu
Ayinavumba kwaye ayinancasa
Ikhono eliphezulu lokutyibilika
Ukuchasana nokuqhekeka
Ayinamatheli kakhulu
Ikhompawundi ayinayo ityhefu, kwaye ikhuselekile.
Ayiwafunxi amanzi.
Onke amatyathanga epolymer kwi-UHMW made kakhulu, kwaye alungelelaniswa kwicala elinye.Ikhonkco ngalinye lepolymer lidityaniswe namanye amatyathanga epolymer ajikelezileyo ngemikhosi yeVan der Waal.Oku kwenza ukuba ulwakhiwo lube nzima kakhulu.
I-UHMW iveliswa kwi-polymerization ye-monomer, i-ethylene.I-polymerization ye-ethylene yenza imveliso yesiseko se-polyethylene.Ubume be-UHMW buhluke kakhulu kwi-HDPE ngenxa yendlela yokuvelisa.I-UHMW iveliswa kubukho be-metallocene catalyst (i-HDPE iveliswa phambi kwe-Ziegler-Natta catalyst).
Usetyenziso lwe-UHMW
Ukuveliswa kwamavili eenkwenkwezi
Izikrufu
Iirola
Iigiya
Iipleyiti zokutyibilika
Yintoni i-HDPE?
I-HDPE yi-polyethylene yoxinaniso oluphezulu.Yimathiriyeli ye-thermoplastic polymer.Esi sixhobo sinokuxinwa okuphezulu xa kuthelekiswa nezinye iintlobo ze-polyethylene.Ubuninzi be-HDPE bunikezelwa njenge-0.95 g / cm3.Ekubeni idigri ye-polymer chain branching kule nto iphantsi kakhulu, amakhonkco e-polymer apakishwe ngokuqinileyo.Oku kwenza i-HDPE ibenzima kwaye inika ukuxhathisa impembelelo ephezulu.I-HDPE inokuphathwa phantsi kobushushu obujikeleze i-120°C ngaphandle kwesiphumo esiyingozi.Oku kwenza i-HDPE ikwazi ukuzenzela.
Iipropati ze-HDPE
Iimpawu ezibalulekileyo zeHDPE ziquka,
Nzima ngokomlinganiselo
Ukumelana nempembelelo ephezulu
I-Autoclavable
Imbonakalo ekhanyayo okanye eguquguqukayo
Umlinganiselo ophezulu wamandla ukuya kuxinaniso
Ubunzima obulula
Akukho okanye ukufunxwa ngaphantsi kolwelo
Ukumelana nemichiza
I-HDPE yenye yemathiriyeli yeplastiki ekulula ukuyihlaziya.Ezi propati zimisela usetyenziso lwe-HDPE.
Usetyenziso lweHDPE
Ezinye izicelo ezibalulekileyo ziquka ezi zilandelayo.
Isetyenziswa njengezikhongozeli zeekhompawundi zolwelo ezininzi ezinjengobisi kunye nokugcina imichiza efana neealkoholi.
Ukuvelisa iingxowa zokuthenga zeplastiki
Iitreyi
Ukufakwa kwemibhobho
I-HDPE ikwasetyenziselwa ukusika iibhodi
Kukuphi ukuFaniswa phakathi kwe-UHMW kunye ne-HDPE?
I-UHMW kunye ne-HDPE zenziwe ngee-ethylene monomers.
Zombini ziipolima ze-thermoplastic.
Zombini zinenkangeleko engaqondakaliyo.
| UHMW vs HDPE | |
| I-UHMW yi-ultra-high molecular weight polyethylene. | I-HDPE yi-polyethylene yoxinaniso oluphezulu. |
| Ulwakhiwo | |
| I-UHMW inamatyathanga epholima amade kakhulu. | I-HDPE inamatyathanga epolymer amafutshane xa kuthelekiswa ne-UHMW. |
| Ubunzima beMolekyuli yeeChayini zePolymer | |
| Amakhonkco e-polymer e-UHMW anobunzima beemolekyuli eziphezulu kakhulu. | Amakhonkco e-polymer e-HDPE anobunzima obuphantsi be-molecular xa kuthelekiswa ne-UHMW. |
| Imveliso | |
| I-UHMW iveliswa kubukho be-metallocene catalyst. | I-HDPE iveliswa phambi kweZiegler-Natta catalyst. |
| Ukufunxwa kwamanzi | |
| I-UHMW ayifunxi manzi (zero absorption). | I-HDPE inokufunxa amanzi kancinci. |
Isishwankathelo-UHMW vs HDPE
Zombini i-UHMW kunye ne-HDPE zenziwe ngee-ethylene monomers nge-polymerization.Umahluko ophambili phakathi kwe-UHMW kunye ne-HDPE kukuba i-UHMW iqulathe amatyathanga epolymer amade anobunzima beemolekyuli eziphakamileyo ngelixa i-HDPE inomlinganiselo ophezulu wokuqina wokuxinana.
Ixesha lokuposa: Sep-11-2022
