Ziziphi iingxaki kwimarike yoncedo lokucubungula i-PVC?

1. Kusekho umsantsa othile phakathi kwezixhobo zokulungisa i-PVC zasekhaya kunye neemveliso zangaphandle, kwaye amaxabiso aphantsi awanayo inzuzo enkulu kukhuphiswano lwemarike.
Nangona iimveliso zasekhaya zineengenelo ezithile zejografi kunye namaxabiso kukhuphiswano lwemarike, sinezikhewu ezithile ekusebenzeni kwemveliso, ukwahluka, uzinzo, kunye nezinye iinkalo xa kuthelekiswa neemveliso zangaphandle. Oku kunxulumene nokubuyela umva kwefomyula yemveliso yethu, iteknoloji yokucubungula, ukucubungula, kunye netekhnoloji emva konyango. Amanye amashishini asekhaya ayazi kakuhle le miba kwaye aseke ubudlelwane bentsebenziswano namaziko ophando, amaziko ophando nophuhliso, kwaye enze uphando malunga nezongezo zeplastiki.
2. Iifektri ezincinci zahlukile kwaye akukho shishini liphambili elinesikhundla esipheleleyo, nto leyo ekhokelela kukhuphiswano olungacwangciswanga kwimarike.
Okwangoku, kukho malunga nabavelisi be-ACR basekhaya abangama-30, kodwa ba-4 kuphela kubo abanemveliso enkulu (enomthamo wokufakelwa ngonyaka ongaphezulu kweetoni ezingama-5000). Iimveliso zala mashishini makhulu ziye zaseka umfanekiso omhle kwiimarike zasekhaya nezamazwe ngamazwe, nokuba zinjani na iintlobo kunye nomgangatho wemveliso. Kodwa kwiminyaka emibini edlulileyo, ngenxa yokuchuma kweshishini lokucubungula i-PVC, ezinye iifektri ezincinci ze-ACR ezinomthamo wemveliso ongaphantsi kweetoni ezili-1000 ziye zangena kwimarike. Ngenxa yezixhobo zazo ezilula zokuvelisa kunye nozinzo olubi lwemveliso, la mashishini anokusinda kuphela ngokusebenzisa i-dumping engabizi kakhulu, nto leyo ekhokelela kukhuphiswano olukhulu lwamaxabiso kwimarike yasekhaya. Ezinye iimveliso ezikumgangatho ophantsi nezisemgangathweni ophantsi zazalisa imarike ngoko nangoko, zizisa iziphumo ezimbi kumashishini okucubungula asezantsi kwaye zizisa nemiphumo emibi kakhulu kuphuhliso lweshishini. Kucetyiswa ukuba i-Plastic Processing Association ikhokele ekusekeni i-ACR Additive Industry Association, idibanise imigangatho yeshishini, ilawule uphuhliso lweshishini, isuse iimveliso zobuxoki nezingaphantsi, kwaye inciphise ukhuphiswano olungacwangciswanga. Kwangaxeshanye, amashishini amakhulu kufuneka andise imizamo yawo yokuphuhlisa imveliso, alungise ulwakhiwo lwemveliso yawo, aze agcine uphuhliso oluhambelanayo neemveliso zakwamanye amazwe ezifanayo.
3. Ukunyuka kwamaxabiso eoli ekrwada kukhokelele ekonyukeni kwamaxabiso ezinto ezikrwada kunye nokwehla kwenzuzo yeenkampani.
Ngenxa yokunyuka okuqhubekayo kwamaxabiso eoyile ekrwada kumazwe ngamazwe, zonke izinto eziphambili zemveliso ye-ACR, i-methyl methacrylate kunye ne-acrylic ester, zinyuke kakhulu. Nangona kunjalo, abathengi abasezantsi baye bashiyeka ngasemva ekunyukeni kwamaxabiso emveliso, nto leyo ebangele ukwehla ngokubanzi kwenzuzo kumashishini okucubungula i-ACR. Oku kukhokelele kwimeko yokulahlekelwa yishishini lonke ngo-2003 nango-2004. Okwangoku, ngenxa yokuzinza kwamaxabiso ezinto ezikrwada, ishishini libonise indlela entle yokwenza inzuzo.
4. Ukungabikho kwezakhono zobungcali, uphando lweshishini alukwazanga ukuphuhlisa nzulu
Ngenxa yokuba isongezo se-ACR sisisongezo sezinto zepolymer esaphuhliswa eTshayina ngasekupheleni kweminyaka yoo-1990, iiyunithi zaso zophando nophuhliso kunye nabaphandi bambalwa xa kuthelekiswa nezinye izongezo ezifana neeplastiki kunye nezithinteli zomlilo eTshayina. Nokuba kukho amaziko ophando azimeleyo ayiphuhlisayo, ukungabikho kokudibana okuhle phakathi kwabaphandi kunye nomzi-mveliso wokucubungula iplastiki kukhokelele ekungakwazini ukwenza uphando lwemveliso lube nzulu. Okwangoku, uphuhliso lwe-ACR eTshayina luxhomekeke kuphela kumaziko ophando aphethwe ngamashishini ambalwa ukuze aququzelele kwaye aphuhlise. Nangona kuye kwenziwa impumelelo ethile, kukho umsantsa omkhulu phakathi kwamashishini asekhaya nakwamanye amazwe ngokubhekiselele kwinkxaso-mali yophando, izixhobo zophando nophuhliso, kunye nomgangatho wophando nophuhliso. Ukuba le meko ayiphuculwanga ngokusisiseko, kuya kuba yinto engaziwa ukuba izixhobo zokucubungula zinokuma ziqinile kwimarike yasekhaya kwixesha elizayo.