I-Polyvinyl chloride (PVC) iyi-polymer eyenziwe nge-vinyl chloride monomer (VCM) ku-peroxide, i-azo compound kanye nezinye izinto eziqalayo noma ngokwendlela yokwenza i-free radical polymerization ngaphansi kwesenzo sokukhanya nokushisa. I-homopolymer ye-vinyl chloride kanye ne-vinyl chloride copolymer zibizwa ngokuthi i-vinyl chloride resin.
I-PVC yake yaba yipulasitiki enkulu kunazo zonke emhlabeni, eyayisetshenziswa kabanzi. Isetshenziswa kabanzi ezintweni zokwakha, emikhiqizweni yezimboni, ezidingweni zansuku zonke, esikhumbeni saphansi, amathayili aphansi, esikhumbeni sokwenziwa, emapayipini, ezintambo nasezintanjeni, efilimini yokupakisha, emabhodleleni, ezintweni zokwenza igwebu, ezintweni zokuvala, efayibhelini njalo njalo.
Ngokwezinhlelo zokusebenza ezahlukene, i-PVC ingahlukaniswa ibe yi: i-resin ye-PVC ejwayelekile, izinga eliphezulu le-polymerization ye-PVC resin kanye ne-resin ye-PVC exhumene. I-resin ye-PVC ejwayelekile yakhiwa yi-polymerization ye-monomer ye-vinyl chloride ngaphansi kwesenzo somsunguli; Izinga eliphezulu le-polymerization ye-PVC resin ibhekisela ku-resin polymerized ngokungeza i-ejenti yokukhula kweketanga ohlelweni lwe-polymerization ye-monomer ye-vinyl chloride; i-resin ye-PVC exhumene ne-Crosslinked iyi-resin polymerized ngokungeza i-ejenti yokuxhumanisa equkethe i-diene ne-polyene ohlelweni lwe-polymerization ye-monomer ye-vinyl chloride.
Ngokwendlela yokuthola i-vinyl chloride monomer, ingahlukaniswa ibe yindlela ye-calcium carbide, indlela ye-ethylene kanye nendlela ye-imported (EDC, VCM) monomer (ngokwesiko, indlela ye-ethylene kanye nendlela ye-imported monomer zibizwa ngokuthi indlela ye-ethylene).
Isikhathi sokuthunyelwe: Meyi-07-2022