Ubume basekhaya kunye nendlela yophuhliso lweshishini laseTshayina lePVC

I-PVC yenye yezinto ezintlanu ze-resin ye-universal resin, eneempawu ezibalaseleyo ezifana nokumelana ne-asidi kunye ne-alkali, ukuxhathisa ukunxiba, ukubuyiswa komlilo, kunye nokugquma. Okwangoku, iye yaba yimveliso yeplastiki yesibini ngobukhulu emhlabeni emva polyethylene.
1.Umthamo wemveliso yasekhaya kunye nemveliso yePVC
Inkqubo yemveliso yePVC ikakhulu ibandakanya iindlela ezimbini: indlela ye-calcium carbide kunye nendlela ye-ethylene, umahluko omkhulu yindlela yokulungiselela i-vinyl chloride monomer.
Ngokwembono yemveliso kwiminyaka yakutshanje, imveliso ye-PVC ibonise ukunyuka okunyukayo unyaka nonyaka, kwaye yonke imveliso yemveliso ingene kwinqanaba lophuhliso olunengqiqo. Imfuno yemarike iye yanda ngokuthe ngcembe, kwaye imveliso iye yanda ngokuthe ngcembe. Ngokwedatha evela eChina Chloroalkali Network, izinga lokusebenza lilonke kwishishini lePVC laseTshayina lihleli lingaphezulu kwama-50% kwiminyaka yakutshanje.
2. Indlela yoPhuhliso yoShishino lwePVC
(1) Ukuqinisa ukwakhiwa kwezixhobo zokudityaniswa kwemizi-mveliso
Ukususela kwi-2007, ilizwe liye laqulunqa uluhlu lwemimiselo enika imimiselo ecacileyo yokuphuhliswa kweshishini le-PVC. Ngelo xesha, ikhuthaza ukwakhiwa kwezixhobo ezixhasayo ze-calcium carbide kunye ne-chlor alkali yokuvelisa amashishini, kwaye iqinisa ukwakhiwa kwezixhobo zokudibanisa zoshishino. Phantsi kokhokelo lwemigaqo-nkqubo yesizwe yangoku, ukusekwa kwezixhobo zokudityaniswa kwemizi-mveliso kuye kwaba yinto engenakuphepheka kwimimandla esembindini nasentshona yeTshayina, etyebe ngamalahle, imigodi yetyuwa, kunye nemithombo yelitye likalika. Ngaphantsi kwendima yezixhobo ezidibeneyo, ngokuthembela kuncedo olutyebileyo kunye neenzuzo ezihambelanayo, iindleko zemveliso zinokulawulwa ngokufanelekileyo kwaye iintlobo ngeentlobo zeemveliso zinokuphinda zisetyenziswe, Ukuphucula ukukhuphisana kwemarike kunye nokukwazi ukusinda kwishishini.
(2) Iinkqubo zemveliso ezahlukahlukeneyo
Kuphuhliso lwangoku lwamashishini e-PVC asekhaya, ugxininiso lokwahluka kweenkqubo zezixhobo zemveliso luhlala lusanda, nto leyo eyenza ukuba iimfuno zabo kwinqanaba letekhnoloji zinyuke kakhulu. Indlela yokwahluka kwenkqubo ayinakuthintelwa. Ngophuhliso olongezelelweyo lweenkqubo zasekhaya zePVC, amashishini kufuneka asebenzise ngokuthe ngcembe iinkqubo ezintsha zemveliso ngelixa egcina inkqubo ye-calcium carbide. Kwangaxeshanye, itekhnoloji yePVC yokwenziwa kwepolymerization nayo iya kuphuculwa kakhulu, ngakumbi ngokubhekiselele kumthamo wemveliso yeereactors zepolymerization. Ukongeza, kukwayimfuneko ukwazisa ngenkuthalo itekhnoloji yemveliso yangaphandle ehambele phambili kwaye ngokuthe ngcembe ibakhuthaze ukuphucula ukusebenza kakuhle kwezoqoqosho kwishishini.