Uthini umahluko phakathi kweengxowa zokutya kunye neeplastiki eziqhelekileyo?

1. I-polyethylene: Icandelo eliphambili li-polyethylene resin, kunye nexabiso elincinci le-lubricant, i-agent eguga kunye nezinye izongezo zongezwa.I-Polyethylene yi-waxy engenavumba, engenatyhefu, eqinileyo enobisi emhlophe.I-HDPE ihlulwe ibe yi-polyethylene ephezulu, i-polyethylene ephantsi kunye ne-linear low-density polyethylene ngokwe-morphology, umxholo kunye ne-chain structure ye-polymer.
Iplastiki yePolyethylene ngokuqhelekileyo ibizwa ngokuba yi-HDPE yoxinzelelo oluphantsi.Xa kuthelekiswa ne-polyethylene ephantsi kunye ne-LLDPE, iiplastiki ze-polyethylene zinokumelana nobushushu obuphezulu, ukuxhathisa ukutshatyalaliswa kwe-abrasion, umphunga wamanzi we-hydrophilicity kunye noxinzelelo lwe-crack resistance kwiindawo zendalo.Ukongeza, iplastiki ye-polyethylene inamandla abalaseleyo e-dielectric, ukumelana nempembelelo kunye nokumelana nokubanda.Ilungele iimveliso ezingenanto (ezifana neebhotile zeglasi, iibhotile zokucoca), ukubumba inaliti, ukubumba inaliti kunye namanye amashishini.
Umgca we-polyethylene ephantsi kwe-linear (LINEARLOWDENSYPOYETHYLENE, LLDPE) i-polymer eveliswa yi-polymerization ye-ethylene kunye nenani elincinci le-olefins ehamba phambili phambi kwe-catalyst.Inkangeleko yayo ifana ne-polyethylene ephantsi, kodwa i-gloss yayo ilungile, kunye nobude obuphantsi beqondo lokushisa kunye ne-Modulus ephezulu, ukuxhathisa ukugoba, ukuchasana nokuqhekeka koxinzelelo lwasemhlabeni, ifuthe eliphantsi lobushushu obuphantsi kwamandla oxinzelelo kunye nezinye iingenelo.
Isetyenziselwa ikakhulu ukubumba inaliti, i-extrusion, ukubumba ukuvuthela kunye nezinye iindlela zokubumba ukuvelisa iifilimu, iimfuno zemihla ngemihla, imibhobho, iingcingo kunye neentambo.
2. I-Polypropylene: Inxalenye ephambili yi-polypropylene resin, ene-gloss ephezulu kunye nokuhanjiswa kokukhanya.Ukusebenza kokutywinwa kobushushu kubi kune-PE, kodwa kungcono kunezinye izinto zeplastiki.
1. Ukusebenza komqobo kungcono kune-PE, amandla ayo, ubunzima kunye nokuqina kubhetele kune-PE;
2. Impilo nokhuseleko luphezulu kunemidlalo
3. Inokumelana nobushushu obugqwesileyo kwaye ingasetyenziselwa ixesha elide kwiqondo lokushisa le-100 degrees Celsius, kodwa ukumelana kwayo okubandayo kuphucula ukusebenza kwe-HDPE kwaye ibe yi-brittle kwi -17 degrees Celsius.
Isikhwama sokupakisha esenziwe ngefilimu yeplastiki siphezulu kuneplatinum, izinto ezibonakalayo ezibonakalayo kunye nezixhobo ezingenakunqanda ukukrazula ngokwemiqathango yokumelana nokugqoka kunye nokumelana nomswakama, kodwa umphumo wokupakisha umpofu kwaye iindleko ziphantsi.Ingasetyenziselwa ukupakisha ukuguqulwa kweelollipops kunye nokutya.Ingenziwa ibe yifilimu yokupakisha ubushushu bokutya obushwabeneyo kwingxowa yobushushu obucuthekayo, njengokutya kunye neengxowa zokupakisha zeplastiki zokutya kunye nezinye iingxowa zokupakisha eziyintlanganisela.
3. I-Polystyrene: I-polymer ene-styrene monomer njengeyona nto iphambili.Esi sixhobo sisobala kwaye siyakhazimla.
1. Ukuxhatshazwa komswakama kubi kakhulu kune-PE, ukuzinza kweekhemikhali kuqhelekileyo, ubunzima buphezulu, kodwa i-brittleness inkulu.
2. Ukumelana kakuhle nobushushu obuphantsi, kodwa ukuxhathisa ubushushu obuphantsi, akunakudlula i-60≤80℃.
3. Ukhuseleko olululo.