Ongororo yemaitiro ebudiriro yeChina yePVC (polyvinyl chloride) indasitiri muna 2021, huwandu hwekugadzira huchadzikama.

Ongororo yemaitiro ebudiriro yeChina yePVC (polyvinyl chloride) indasitiri muna 2021, huwandu hwekugadzira huchadzikama.

1. Mhedziso yekuvandudzwa kweindasitiri yePVC

Polyvinyl chloride (PVC) ipolymer yakaumbwa nepolymerization yevinyl chloride monomer (VCM) mune yekutanga senge peroxides uye azo komisheni kana pasi pechiito chechiedza uye kupisa zvinoenderana nemagadzirirwo emahara radical polymerization.chikamu chakakosha.

Polyvinyl chloride resins inonyanya kupatsanurwa kuva-general-purpose resins uye paste resin maererano nekushandiswa kwavo: general-purpose resins (G resins) maresini anosanganiswa neyakajairwa huwandu hwemaplasticizers kana additives kuita hupfu hwakaoma kana hunyoro hwekugadzirisa;paste resin (P Resin) inowanzogadzirwa neplasticizer kuti iite paste resin yekushandisa;kune zvakare PVC musanganiswa resin, inova PVC resin inotsiva chikamu chenamira resin nekusanganisa pakugadzira PVC plastisol.

Main classification yePVC resin

Nzira huru dzekugadzira dzePVC resin dzinosanganisira nzira yekumisa, nzira yakawanda, emulsion nzira, nzira yekugadzirisa uye micro-suspension polymerization nzira.Kubva pakuona kwepasirese, nzira yekumisa ndiyo nzira huru yekugadzira yePVC general-chinangwa resin, nepo nzira dzekugadzira dzePVC paste resin inzira yeemulsion uye micro-suspension polymerization nzira.Nekuda kwemaitiro akasiyana ekugadzira, huwandu hwekugadzira hwema resin maviri haugone kushandurwa kuita mumwe nemumwe.

2. Industrial chain yePVC industry

Iyo PVC yekugadzira maitiro inonyanya "calcium carbide nzira" uye "ethylene nzira", uye zvigadzirwa zvayo marasha uye isina mafuta oiri zvichiteerana.Nyika zhinji pasi rose dzinoshandisa nzira yemafuta negasi.Nekuda kwekuti China ine urombo mumafuta uye yakapfuma mumarasha, nyika yangu yePVC kugadzirwa kunonyanya kuenderana necalcium carbide nzira.

PVC indasitiri cheni

Iyo mbishi yekugadzirwa kwePVC necalcium carbide nzira marasha.Kubva 2012, nyika yangu marasha akabuda aratidza maitiro ekutanga kudzikira obva awedzera.Sekureva kweNational Bureau of Statistics, kuburitswa kwemarasha munyika kuchasvika matani 4.13 bhiriyoni muna 2021, kuwedzera kwe228 miriyoni matani zvichienzaniswa ne2020.

Iyo mbishi yekugadzirwa kwePVC nenzira ye ethylene ndiyo isina mafuta.Sekureva kweNational Bureau of Statistics, nyika yangu ichagadzira 198.98 miriyoni matani emafuta asina kuchena muna 2021, kuwedzera kwe4.06 miriyoni matani kana zvichienzaniswa ne2020. Pakati pavo, 16.47 miriyoni matani emafuta asina kuchena akagadzirwa muna Zvita, gore-on- kuwedzera kwegore kwe1.7%.