Mkhalidwe wapakhomo ndi chitukuko cha makampani a PVC ku China

PVC ndi imodzi mwa zipangizo zisanu zodziwika bwino za utomoni, zomwe zili ndi makhalidwe abwino kwambiri monga kukana asidi ndi alkali, kukana kukalamba, kukana moto, komanso kutchinjiriza moto. Pakadali pano, yakhala chinthu chachiwiri chachikulu kwambiri cha pulasitiki padziko lonse lapansi pambuyo pa polyethylene.
1. Mphamvu yopangira zinthu zapakhomo komanso zotuluka za PVC
Njira yopangira PVC imaphatikizapo njira ziwiri: njira ya calcium carbide ndi njira ya ethylene, kusiyana kwakukulu ndi njira yokonzekera vinyl chloride monomer.
Poganizira za kupanga m'zaka zaposachedwa, kupanga PVC kwakhala kukuchulukirachulukira chaka ndi chaka, ndipo mphamvu zonse zopangira mafakitale zalowa mu gawo loyenera la chitukuko. Kufunika kwa msika kwayambiranso pang'onopang'ono, ndipo kupanga kwawonjezeka pang'onopang'ono. Malinga ndi deta yochokera ku China Chloroalkali Network, kuchuluka konse kwa ntchito zamakampani a PVC ku China kwapitirira 50% m'zaka zaposachedwa.
2. Chitukuko cha Makampani a PVC
(1) Kulimbitsa ntchito yomanga zipangizo zogwirizanitsa mafakitale
Kuyambira mu 2007, dzikolo lapanga malamulo angapo omwe amapereka malamulo atsatanetsatane oyendetsera makampani opanga PVC. Nthawi yomweyo, limalimbikitsa kumanga zida zothandizira makampani opanga calcium carbide ndi chlor alkali, ndikulimbitsa zomangamanga za zida zogwirizanitsa mafakitale. Motsogozedwa ndi mfundo zadziko zomwe zilipo, kukhazikitsidwa kwa zida zogwirizanitsa mafakitale kwakhala chizolowezi chosapeŵeka m'madera apakati ndi akumadzulo kwa China, omwe ali ndi malasha ambiri, migodi yamchere, ndi miyala yamchere. Pansi pa udindo wa zida zophatikizana, podalira zabwino zambiri za zinthu ndi zabwino zofanana, ndalama zopangira zitha kulamulidwa bwino ndipo zinthu zosiyanasiyana zitha kubwezeretsedwanso, Kukweza mpikisano wamsika ndi kuthekera kopulumuka kwa bizinesi.
(2) Njira zosiyanasiyana zopangira
Pakukula kwa makampani opanga zinthu za PVC m'nyumba, kugogomezera kusiyanasiyana kwa njira zopangira zida kukuchulukirachulukira, zomwe zimapangitsa kuti zofunikira zawo pamlingo waukadaulo zikhale zapamwamba kwambiri. Kusintha kwa njira zopangira zinthu sikungatheke. Ndi chitukuko chowonjezereka cha njira zopangira zinthu za PVC m'nyumba, makampani amafunika kugwiritsa ntchito pang'onopang'ono njira zina zatsopano zopangira zinthu pamene akusunga njira yoyambirira ya calcium carbide. Nthawi yomweyo, ukadaulo wa polymerization wa PVC udzasinthidwanso kwambiri, makamaka pankhani ya mphamvu yopanga zinthu za polymerization reactors. Kuphatikiza apo, ndikofunikiranso kuyambitsa ukadaulo wapamwamba wopanga zinthu zakunja ndikuzilimbikitsa pang'onopang'ono kuti ziwongolere magwiridwe antchito azachuma amakampani.