Zitseko za mbiri ya PVC yaku China ndi kupanga mazenera kwalowa nthawi yosinthira
Patha zaka theka kuyambira dziko loyamba PVC pulasitiki zitseko ndi mazenera anatuluka mu Federal Republic of Germany mu 1959. Mtundu wa zinthu kupanga PVC monga zopangira ali kwambiri mawotchi katundu, kukana nyengo (ultraviolet kukana) ndi retardancy lawi., Kulemera kwa kuwala, kutalika kwa moyo, kupanga ndi kukhazikitsa kosavuta, kukonza kochepa, ndi mtengo wotsika, ndi zina zotero, zapita patsogolo kwambiri m'mayiko otukuka.Makampani apakhomo a PVC omwe ali ndi khomo ndi zenera akumananso ndi zaka 30 zachitukuko.Kuyambira nthawi yoyambira komanso nthawi yachitukuko chofulumira, tsopano yalowa mu nthawi ya kusintha.
Mu ndondomeko ya "Chaka chachisanu ndi chimodzi", dziko la China likulongosola momveka bwino cholinga chochepetsera mphamvu zamagetsi m'dziko lonselo ndi 20%.Malinga ndi kafukufuku wafukufuku wotulutsidwa ndi madipatimenti oyenerera, ku China kugwiritsira ntchito mphamvu zomangamanga kumagwiritsa ntchito 40% ya mphamvu zonse zomwe zimagwiritsidwa ntchito, zomwe zimayambira pakati pa mitundu yonse ya mphamvu zamagetsi, zomwe 46% zimatayika pazitseko ndi mawindo.Chifukwa chake, kusungirako mphamvu zomanga kwakhala njira yofunika kwambiri yochepetsera kugwiritsa ntchito mphamvu, zomwe zakopa chidwi cha anthu ambiri, komanso ndi imodzi mwazinthu zomwe zimapangitsa kuti pakhale chitukuko chofulumira cha chitseko cha pulasitiki chapakhomo ndi zenera.Mothandizidwa ndi mfundo za dziko "kupulumutsa mphamvu ndi kuchepetsa umuna", ntchito msika zoweta ankafuna anafika oposa 4300kt mu 2007, linanena bungwe kwenikweni ankawerengera pafupifupi 1/2 mphamvu kupanga (kuphatikiza 2000kt otsika mankhwala), voliyumu katundu kunja. anali pafupifupi 100kt, ndi kumwa pachaka PVC utomoni Pafupifupi 3500kt kapena kuposa, mlandu oposa 40% ya okwana dziko langa PVC utomoni linanena bungwe.Pofika kumapeto kwa 2008, panali mizere yoposa 10,000 yopanga mbiri ku China, yokhala ndi mphamvu yoposa 8,000kt, ndi mabizinesi opitilira 10,000.Mu 2008, gawo la msika la zitseko za pulasitiki ndi mazenera a dziko langa m'nyumba zomangidwa kumene m'mizinda ndi m'matawuni zafika kupitirira 50%.Panthawi imodzimodziyo, nkhani zachitetezo ndi chitetezo cha chilengedwe cha zitseko zapulasitiki ndi mazenera zalandiranso chidwi cha anthu monga kusunga mphamvu.
Nthawi yotumiza: Jan-12-2021