PVC chimwe chezvishanu zvepasi rose resin zvinhu, zvine hunhu hwakanaka senge acid uye alkali resistance, kupfeka resistance, flame retardancy, uye insulation.Parizvino, yave yechipiri yakakura chigadzirwa chepurasitiki munyika mushure me polyethylene.
1.Domestic kugadzirwa kwesimba uye kubuda kwePVC
Nzira yekugadzira yePVC inonyanya kusanganisira nzira mbiri: nzira ye calcium carbide uye ethylene nzira, nemusiyano mukuru uri nzira yekugadzirira yevinyl chloride monomer.
Kubva pamaonero ekugadzirwa mumakore achangopfuura, kugadzirwa kwePVC kwakaratidza kuwedzera kwegore negore, uye indasitiri yese yekugadzira yakapinda mudanho rekusimudzira.Kudiwa kwemusika kwakawedzera zvishoma nezvishoma, uye kugadzirwa kwakawedzera zvishoma nezvishoma.Zvinoenderana nedata kubva kuChina Chloroalkali Network, huwandu hwese hwekushanda hweindasitiri yePVC yeChina hwakaramba huri pamusoro pe50% mumakore achangopfuura.
2. The Development Trend yePVC Industry
(1) Simbisa kuvakwa kwemidziyo yekubatanidza maindasitiri
Kubva 2007, nyika yakagadzira nhevedzano yemirau inopa yakadzama mirau yekusimudzira indasitiri yePVC.Panguva imwecheteyo, inokurudzira kuvakwa kwemidziyo inotsigira yecalcium carbide uye chlor alkali kugadzira mabhizinesi, uye inosimbisa kuvakwa kwemidziyo yekubatanidza maindasitiri.Pasi pehutungamiri hwemitemo yenyika iripo, kugadzwa kwemidziyo yekubatanidza maindasitiri kwave tsika isingadzivisiki munzvimbo dzepakati nekumadokero kweChina, idzo dzakapfuma nemarasha, migodhi yemunyu, nezviwanikwa zveraimu.Pasi pebasa rezvishandiso zvakabatanidzwa, nekuvimba neakapfuma zviwanikwa zvakanakira uye mabhenefiti anoenderana, mutengo wekugadzira unogona kudzorwa zvinobudirira uye zvakasiyana-siyana-zvigadzirwa zvinogona kudzokororwa, Kuvandudza kukwikwidza kwemusika uye kugona kwekupona kwebhizinesi.
(2) Maitiro ekugadzira akasiyana
Mukusimudzira kwazvino kwemabhizinesi ePVC epamba, kusimbiswa kwekusiyana kwemaitiro emidziyo yekugadzira kuri kuramba kuchiwedzera, izvo zvinoita kuti zvavanoda padanho retekinoroji zviwedzere kukwirira.Maitiro ekusiyana kwemaitiro haamiswe.Nekumwe kuvandudzwa kwemaitiro ekugadzira epamba ePVC, mabhizinesi anofanirwa kushandisa zvishoma nezvishoma mamwe maitiro matsva ekugadzira achichengeta iyo yekutanga calcium carbide process.Panguva imwecheteyo, tekinoroji yePVC yepolymerization ichave yakavandudzwa zvakanyanya, kunyanya maererano nehuwandu hwekugadzira hwepolymerization reactor.Pamusoro pezvo, zvinodikanwa zvakare kushingaira kusuma matekinoroji ekugadzirwa kwekunze uye zvishoma nezvishoma kusimudzira iwo kuvandudza hupfumi hweindasitiri.
Nguva yekutumira: Jul-28-2023
