Igama lomkhiqizo wase-China PVC livamise ukusetshenziswa idigri ye-polymerization noma isichasiselo esiyimodeli.Isibonelo, uhlobo oluyisikhombisa lwe-PVC (uhlobo lwe-S-800, SG-7) noma uhlobo lwe-PVC oluyisishiyagalombili (uhlobo lwe-S-700, SG-8) olunekhwalithi enhle luzophawulwa ngokuhlukile ngabakhiqizi abahlukene.Iningi lawo limakwe ngo-SG kanye nedijithi eyodwa ukumela amamodeli e-PVC.Inani lamakhulu nezinkulungwane zamamaki limelela izinga le-polymerization (inani elifanayo limelela umkhiqizo ofanayo, njenge-Qingdao Haijing HS1000, i-Shanghai chlor-alkali WS1000,I-Qilu Petrochemical S1000zonke zimelela i-PVC yezinhlobo ezinhlanu).
UKUQHATHANISA LEZO NDAWO YASEKHAYA IBAMBISA IZINTO EZIYI-7, 8 IZINHLOBO, OKUJWAYELEKILE UKUSETSHENZISWA I-QILU PETROCHEMICAL, Shanghai CHLOR-ALKALI, CANG HUA, Qingdao HAI JING, UMkhiqizo We-DAGU HUA.
Abanye ozakwethu abasha nabathakazelayo bangase babuze ukuthi kungani abakhiqizi beshidi bekhetha ukusebenzisa Uhlobo 7 futhi bathayiphe 8 esikhundleni sohlobo 5. Alikho elinye, kodwa eziyisikhombisa, uhlobo lwesishiyagalombili lwedigri ye-PVC polymerization iphansi, kulula ukuyicubungula.Hhayi kuphela ishidi, ukufakwa kwepayipi le-PVC, ama-valve e-PVC nawo afanelekile ukusetshenziswa.
Izimboni zamapayipi ngokuvamile zisebenzisa uhlobo 5. Ingxenye ephezulu ye-calcium carbonate nayo yengezwa ukuze kuncishiswe izindleko, okungafanele kuchazwe kabanzi lapha.
Kuleyo minyaka esabekayo, i-PVC ezweni lakithi yayihlukaniswe yaba izinhlobo eziyisishiyagalombili, okuwuhlobo 1 kuya ku-8. Abazalwane abayisishiyagalombili bavivinywa (bacekelwa phansi) yimakethe, kwasala ezine kuphela:
Uhlobo 3(i-polymerization degree 1300, ikakhulukazi esetshenziselwa ukukhiqiza izintambo nekhebula, ifilimu ye-calendering), uhlobo 5 (i-polymerization degree 1000, esetshenziselwa kakhulu amaphrofayili, amapayipi), kanye nohlobo 7 lwesishiyagalombili.
Ukukhiqiza okujwayelekile kwe-PVC kusetshenziswa indlela yokumiswa, ekukhethweni kwe-dispersant ehlukene yokumiswa, kungatholakala isakhiwo sezinhlayiyana kanye ne-morphology yezinhlobo ezimbili ezihlukene ze-resin.
Isikhathi sokuthumela: Aug-08-2022