Isimo sasekhaya kunye nendlela yophuhliso lweshishini le-PVC laseTshayina

I-PVC yenye yezinto ezintlanu ze-resin ezisetyenziswa kwihlabathi liphela, eneempawu ezintle kakhulu ezifana nokumelana ne-asidi kunye ne-alkali, ukumelana nokuguguleka, ukuthintela ilangatye, kunye nokukhusela ubushushu. Okwangoku, iye yaba yimveliso yesibini ngobukhulu yeplastiki emhlabeni emva kwe-polyethylene.
1. Umthamo wemveliso yasekhaya kunye nemveliso yePVC
Inkqubo yokuvelisa i-PVC ibandakanya iindlela ezimbini: indlela ye-calcium carbide kunye nendlela ye-ethylene, umahluko ophambili yindlela yokulungiselela i-vinyl chloride monomer.
Ngokwembono yemveliso kwiminyaka yakutshanje, imveliso ye-PVC ibonakalise umkhwa okhulayo unyaka nonyaka, kwaye amandla emveliso alo lonke eli shishini angene kwinqanaba lophuhliso olunengqiqo. Imfuno yemarike iye yabuyela kwimeko yesiqhelo, kwaye imveliso iye yanda kancinci kancinci. Ngokwedatha evela kwi-China Chloroalkali Network, izinga lokusebenza lilonke leshishini le-PVC laseTshayina lihlale lingaphezulu kwama-50% kwiminyaka yakutshanje.
2. Indlela yoPhuhliso lweShishini lePVC
(1) Ukuqinisa ukwakhiwa kwezixhobo zokudibanisa amashishini
Ukususela ngo-2007, eli lizwe liye laqulunqa uthotho lwemigaqo enika imigaqo eneenkcukacha zophuhliso lweshishini le-PVC. Kwangaxeshanye, likhuthaza ukwakhiwa kwezixhobo ezixhasayo zamashishini okuvelisa i-calcium carbide kunye ne-chlor alkali, kwaye liqinisa ukwakhiwa kwezixhobo zokudibanisa imboni. Phantsi kwesikhokelo semigaqo-nkqubo yelizwe yangoku, ukusekwa kwezixhobo zokudibanisa imboni kuye kwaba ngumkhwa ongenakuphepheka kwimimandla esembindini nasentshona yeTshayina, etyebileyo ngamalahle, imigodi yetyuwa, kunye nezixhobo zelitye lekalika. Phantsi kwendima yezixhobo ezidibeneyo, ngokuthembela kwiingenelo zezixhobo ezityebileyo kunye neengenelo ezifanayo, iindleko zemveliso zinokulawulwa ngokufanelekileyo kwaye iimveliso ezahlukeneyo zinokuphinda zisetyenziswe, Kuphuculwe ukhuphiswano lwemarike kunye nokukwazi kokusinda kweshishini.
(2) Iinkqubo zemveliso ezahlukeneyo
Kuphuhliso lwangoku lwamashishini e-PVC asekhaya, ugxininiso ekuhlukeni kweenkqubo zezixhobo zemveliso luhlala lukhula, nto leyo eyenza iimfuno zabo kwinqanaba letekhnoloji ziphakame ngakumbi. Umkhwa wokwahlukana kweenkqubo awunakuthintelwa. Ngophuhliso olongezelelekileyo lweenkqubo zemveliso ye-PVC yasekhaya, amashishini kufuneka asebenzise kancinci kancinci ezinye iinkqubo zemveliso ngelixa egcina inkqubo yokuqala ye-calcium carbide. Kwangaxeshanye, iteknoloji ye-PVC polymerization nayo iya kuphucuka kakhulu, ngakumbi ngokubhekiselele kumandla emveliso yee-reactors ze-polymerization. Ukongeza, kuyimfuneko ukwazisa ngenkuthalo iteknoloji yemveliso yangaphandle ephucukileyo kwaye uyikhuthaze kancinci kancinci ukuphucula ukusebenza kakuhle koqoqosho lweshishini.