Iindaba
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I-Extrusion yePlastiki - Umgaqo oSebenzayo kunye neeParameters zeNkqubo
I-Extrusion yinkqubo yokuvelisa umthamo ophezulu.Izinto zeplastiki zinyibilika ngokusetyenziswa kobushushu kwaye zigqithiswe ngokufa kwimilo efunekayo.Isikrufu esijikelezayo esisicylindrical sibekwe ngaphakathi komphanda nto leyo enyanzelisa ukuba kuphume imathiriyeli yeplastiki enyibilikisiweyo ngedayisi.Izinto ezikhutshiweyo zithatha...Funda ngokugqithisileyo -
Inkqubo yeMveliso ye-PTFE
I-Tetrafluoroethylene yaqala ukulungiswa ngo-1933. I-synthesis yorhwebo yangoku isekelwe kwi-fluorspar, i-sulfuric acid kunye ne-chloroform.Inkqubo yeMveliso eyiSiseko ye-PTFE Polymer: Ukwenziwa kwe-PTFE Polymer/Resin ngokwesiseko kuqhutywa ngokwezigaba ezibini.Okokuqala, i-TFE Monomer isetyenziswa ngokubanzi...Funda ngokugqithisileyo -
Ukukhutshwa kweepolymers
I-Extrusion yinkqubo yokwenziwa kweemveliso ezinde zecandelo elinqamlezayo (iintonga, amashiti, imibhobho, iifilim, ukugquma ngocingo) ukunyanzela ukuthambisa ipolymer ngokufa ngokuvula.Izinto zePolymer ngendlela yeepellets zityiswa kwi-extruder nge-hopper.Isixhobo si...Funda ngokugqithisileyo -
I-Polyether ether ketone (PEEK) IiPropati kunye nosetyenziso
I-Polyether ether ketone (PEEK) i-polymer ye-organic thermoplastic engenambala kwintsapho ye-polyaryletherketone (PAEK), esetyenziswa kwizicelo zobunjineli.Yaziswa ekuqaleni yiVictrex PLC, emva koko i-Imperial Chemical Industries (ICI) ekuqaleni koo-1980.Iipropati:I-PEEK yi-semicrystalline th...Funda ngokugqithisileyo -
Izicelo ze-Polymer Adsorption
I-Adsorption kukunamathela kwee-ion okanye iamolekyu kumphezulu wesinye isigaba.I-Adsorption inokwenzeka nge-physisorption kunye ne-chemisorption.Iiyoni kunye neemolekyuli zinokubhengeza kwiintlobo ezininzi zemigangatho ebandakanya umphezulu wepolymer.Ipolymer yimolekyuli enkulu eyenziwe ngamasuntswana aphinda-phindayo abophelelekile...Funda ngokugqithisileyo -
Ipolymer adsorption
I-Adsorption kukunamathela kwee-ion okanye iamolekyu kumphezulu wesinye isigaba.I-Adsorption ingenzeka nge-physisorption kunye ne-chemisorption.Iiyoni kunye neemolekyuli zinokubhengeza kwiintlobo ezininzi zemigangatho ebandakanya umphezulu wepolymer.Ipolymer yimolekyuli enkulu eyenziwe ngamasuntswana aphinda-phindayo adityaniswe kunye...Funda ngokugqithisileyo
