Iminyango yephrofayela ye-PVC yaseChina kanye nokukhiqizwa kwamafasitela kungene esikhathini sezinguquko
Sekuphele isigamu sekhulu leminyaka kusukela iminyango namafasitela epulasitiki yokuqala ye-PVC emhlabeni yaphuma e-Federal Republic of Germany ngo-1959. Lolu hlobo lwezinto zokwenziwa ze-PVC njengezinto eziluhlaza zinezakhiwo ezinhle kakhulu zemishini, ukumelana nesimo sezulu (ukumelana ne-ultraviolet) nokunciphisa ilangabi., Isisindo esilula, ubude besikhathi sokuphila, ukukhiqizwa nokufakwa okulula, ukunakekelwa okuphansi, nentengo ephansi, njll., kwenze intuthuko enkulu emazweni athuthukile.Imboni yasekhaya enephrofayili ye-PVC yomnyango namafasitela nayo ihlangabezane neminyaka engama-30 yentuthuko.Kusukela esikhathini sokwethulwa kanye nesikhathi sokuthuthuka okusheshayo, manje isingene esikhathini soguquko.
Ohlelweni "lweminyaka Eyishumi Nanye Yeminyaka Emihlanu", i-China yabeka ngokucacile umgomo wokunciphisa ukusetshenziswa kwamandla ezweni lonke ngamaphesenti angaphezu kwama-20%.Ngokwemininingwane yocwaningo ekhishwe iminyango efanele, ukusetshenziswa kwamandla okwakhiwa kweChina njengamanje kufinyelela ku-40% wawo wonke amandla asetshenziswayo, okukleliswe kuqala kuzo zonke izinhlobo zokusetshenziswa kwamandla, lapho u-46% ulahleka ngeminyango namafasitela.Ngakho-ke, ukwakha ukongiwa kwamandla sekuyisinyathelo esibalulekile sokunciphisa ukusetshenziswa kwamandla, okuye kwakhanga ukunaka kwabantu abaningi, futhi kungenye yezindlela zokuthuthukisa ngokushesha imboni yasekhaya yepulasitiki nefasitela.Ngokusekelwa inqubomgomo kazwelonke "yokonga amandla nokunciphisa ukukhishwa", isicelo semakethe yasekhaya safinyelela ngaphezu kuka-4300kt ngo-2007, umphumela wangempela wabalelwa cishe i-1/2 yomthamo wokukhiqiza (kuhlanganise nemikhiqizo ephansi engu-2000kt), umthamo wokuthekelisa. yayicishe ibe yi-100kt, futhi ukusetshenziswa konyaka kwe-PVC resin Cishe i-3500kt noma ngaphezulu, ibalwa ngaphezu kuka-40% wengqikithi yokukhishwa kwenhlaka ye-PVC yezwe lami.Ekupheleni kuka-2008, kwase kunemigqa yokukhiqiza iphrofayili engaphezu kuka-10,000 e-China, enamandla okukhiqiza angaphezu kuka-8,000kt, kanye namabhizinisi okukhiqiza angaphezu kuka-10,000.Ngo-2008, isabelo semakethe seminyango namafasitela epulasitiki yezwe lami ezakhiweni ezisanda kwakhiwa zokuhlala emadolobheni amakhulu namadolobhana sesifinyelele ngaphezu kwama-50%.Ngaso leso sikhathi, izindaba zokuphepha nokuvikelwa kwemvelo kweminyango namafasitela epulasitiki nazo zithole ukunakwa kwabantu njengokongiwa kwamandla.
Isikhathi sokuthumela: Jan-12-2021