Iintlobo eziqhelekileyo kunye nokuqaliswa kweplastiki.

Iplastiki, oko kukuthi, irabha yeplastiki, i-rubber granule eyenziwe yi-polymerization yeemveliso zokucoca i-petroleum kunye neekhemikhali ezithile.Icutshungulwa ngabavelisi ukuba benze iimveliso zeplastiki zeemilo ezahlukeneyo.

1. Ukuhlelwa kweeplastiki: Emva kokucubungula kunye nokufudumeza, iiplastiki zinokwahlulwa zibe ngamacandelo amabini: i-thermoplastic kunye ne-thermosetting.Eziqhelekileyo zezi zilandelayo:
1) I-PVC-i-polyvinyl chloride
2) I-PE-polyethylene, i-HDPE-i-polyethylene ephezulu yoxinaniso, i-LDPE-i-polyethylene ephantsi
3) PP-Polypropylene
4) I-PS-polystyrene
5) Ezinye izinto eziqhelekileyo zokushicilela ziyiPC, PT, PET, EVA, PU, ​​KOP, Tedolon, njl.

2. Indlela elula yokuchonga yeentlobo ezahlukeneyo zeplastiki:
Yahlula ngokwembonakalo:
1) Iteyiphu yePVC ithambile kwaye inokwandiswa okuhle kakhulu.Ukongeza, kukwakho nezinye izinto eziqinileyo okanye ezinogwebu, njengemibhobho yamanzi, iingcango ezityibilikayo, njl.
2) I-PS, i-ABS, i-soft and brittle texture, ngokuqhelekileyo i-surface injection yokubumba.
I-3) I-HDPE kwi-PE ilula kwi-texture, ilungile kukuqina kunye ne-opaque, ngelixa i-LDPE i-ductile kancinane.
4) I-PP ine-transparency ethile kwaye i-brittle.

Ukwahlula ngokweempawu zekhemikhali:
1) I-PS, i-PC kunye ne-ABS inokunyibilika kwi-toluene ukuze igxumeke imiphezulu yazo.
2) I-PVC ayinyibiliki ngebenzene, kodwa inokunyibilika nge-ketone solvent.
I-3) I-PP kunye ne-PE zinokuxhathisa okulungileyo kwe-alkali kunye nokuchasana kwe-solvent.

Ukwahlula ngokuvutha:
1) Xa i-PVC itshiswa ngomlilo, iya kutshabalalisa iphunga le-chlorine, kwaye xa umlilo ushiya, awuyi kutshisa.
I-2) I-PE iya kuvelisa i-waxy iphunga xa itshisa, kunye namaconsi e-waxy, kodwa i-PP ayiyi, kwaye zombini iya kuqhubeka nokutshisa emva kokushiya umlilo.

3. Iimpawu zeeplastiki ezahlukeneyo
I-1) Iimpawu ze-PP: Nangona i-PP inokungafihli, ukuthungwa kwayo kulula ukuphuka, okulunge ngakumbi ukupakishwa kokutya.Iintlobo ezahlukeneyo zeemveliso ezahlukeneyo zinokufunyanwa ngokuphucula iziphene zabo zokuphuka.Umzekelo: I-OPP kunye ne-PP zandisiwe ngokungafaniyo ukuphucula amandla azo, asetyenziswa ngokuqhelekileyo kwipakethe yangaphandle yeetawuli zephepha kunye nezinti.
2) Iimpawu ze-PE: I-PE yenziwe nge-ethylene.Ubuninzi be-LDPE bumalunga ne-0.910 g/cm-0.940 g/cm.Ngenxa yokuqina kwayo okugqwesileyo kunye namandla obungqina bokufuma, ihlala isetyenziselwa ukupakishwa kokutya, ukupakishwa kwezithambiso, njl njl.;Ubuninzi be-HDPE bu malunga ne-0.941 g / cm okanye ngaphezulu.Ngenxa yokukhanya kwayo kunye nokumelana nobushushu, ihlala isetyenziswa kwiibhegi kunye neengxowa ezahlukeneyo eziluncedo.