Izinto ze-Polythene zihlala phakathi kwezinto ezisetshenziswa kakhulu embonini yomhlaba wonke, ezokupakisha, kanye nezokwakha. Lolu hlobo lwezinto zepulasitiki luhlanganisa izinhlobonhlobo zezindlela zokukhiqiza, okubandakanya i-low density polyethylene, i-expanded polyethylene, kanye nezinhlobo ezixutshwe ne-polypropylene njenge-pp polyethylene. Abakhiqizi bakhetha izinhlobo ezithile ze-polyethylene polythene ngezici ezifana nokuguquguquka, ukuqina, ukumelana namakhemikhali, nokuba nenzuzo ngezindleko. Kubhizinisi elihlola imininingwane yezinto, ukuqonda umehluko phakathi kwezinto ze-polythene kubalulekile ekukhetheni izinhlobo ze-resin, izindlela zokucubungula, kanye namasu okugcina impilo. Izinkampani ezifana ne-13791924718 kanye nabathengisi bamazwe omhlaba bagcizelela amashidi emininingwane yomkhiqizo afaka ukhwezi, i-melt flow index, kanye nezincomo zezimo zokucubungula ukuze onjiniyela bakwazi ukwenza kahle ukukhiqiza. Ukuze uthole isibuyekezo somthengisi kanye nemifanekiso yomkhiqizo esekela izinqumo zokuthenga, bona ikhasi leMikhiqizo ukuze ubone amakhono omthengisi kanye nezinketho zezinto.

Umkhondo wemvelo wezinto ze-polythene sewuphenduke ukukhathazeka okukhulu komphakathi ngenxa yokungcola okuqhubekayo ezindaweni zemhlabathi nolwandle. Uma zingaphathwa ngendlela engafanele, i-polyethylene polythene iyakwephuka ibe ama-microplastics aqongeka emhlabathini, emifuleni, nasemaketangeni okudla, iguqule izindawo zokuhlala futhi ibeke izingozi ezilwaneni zasendle. Izinto ze-expanded polyethylene foams, ezivame ukusetshenziswa ekupakisheni nasekuvikeleni ukushisa, zingamelana nokubola iminyaka eminingi futhi zibe nomthelela emifuleni yemfucumfucu enkulu ebiza kakhulu ukuqoqa nokucubungula. Ngisho nama-low density polyethylene films, asetshenziswa kakhulu ezikhwameni nasemapakishini asetshenziswa kanye, angavala imifulana futhi aqhekeke abe izingxenye ezincane ezinzima ukuzisusa. Ngakho-ke, amabhizinisi kufanele acabangele hhayi izindleko zokukhiqiza kuphela kodwa nemiphumela yokugcina kanye nezimfuno zomthetho lapho ekhetha phakathi kwezinto ze-polythene. Abahlinzeki nabakhiqizi abafaka izinhlelo zokubuyisa kanye nezindlela zokugaywa kabusha banganciphisa ukungcola komjikelezo wempilo futhi bathuthukise izithombe zokuzinikela kwezinkampani.

Ukwenza izinto ze-polythene kudinga izinyathelo ezisebenzisa amandla amaningi okubandakanya ukwenziwa kwe-ethylene monomer, i-polymerization, kanye ne-pelletizing, konke lokhu kunomthelela ekukhishweni kwegesi elibamba ukushisa. Umkhondo wekhabhoni uyahlukahluka kumabanga ahlukene: ukukhiqiza i-low density polyethylene ngokuvamile kunezici zamandla ezihlukile kunezinga lokukhiqiza ama-foam e-expanded polyethylene ngenxa yokucubungula okwengeziwe kokunweba nokuhlanganisa izithako. Ukuthola izinto ezisetshenziswa njenge-naphtha noma i-ethane, kanye nokusebenza kahle kwezikhukhula zamanzi kanye ne-polymerization reactors kuthinta kakhulu ukukhishwa okuphelele nge-tonne yerayisi. Ngaphezu kwalokho, ukuhlanganisa okuqukethwe okusebenzisiwe ku-polyethylene polythene kunganciphisa kakhulu i-carbon esele kodwa kudinga ingqalasizinda eqinile yokuhlunga nokucubungula kabusha ukuze kugcinwe izici zezinto. Ezinkampanini ezilinganisa ukukhishwa kwe-Scope 1 kanye ne-Scope 3, ukubambisana nabaphakeli abadalula idatha yokuhlola umjikelezo wempilo (LCA) futhi banikele ngama-blends e-pp polyethylene asebenzisiwe noma aphansi-carbon kuyabaluleka kakhulu.

Ukusungula izinto ze-polythene kugxile ekunciphiseni umonakalo emvelweni ngenkathi kugcinwa ukusebenza. Ukuqhubeka kufaka phakathi izinhlanganisela ze-polyethylene ezinganeni ezingaphansi ezisetshenziswe kakhulu, izinto ezihlangene ezivumela ukugaywa kabusha kwe-polymer eyinhlanganisela, kanye ne-ethylene evela ezintweni eziphilayo ukuze kuncishiswe ukukhishwa kwe-cradle-to-gate. Imikhiqizo ye-polyethylene eyandisiwe iyabuyekezwa ukuze kuthuthukiswe ukugaywa kabusha futhi kuncishiswe izinto ezishintsha kalula, futhi ubuchwepheshe obusha bokugaywa kabusha ngomshini nangamakhemikhali bungaguqula udoti we-polyethylene polythene ubuyele kumamonoma asezingeni le-feedstock. Izindlela ezivelayo ezifana nezinto eziphilayo eziphilayo, izinhlanganisela ze-polymer, namapulatifomu ahlukene ngokuphelele okokupakisha ziyathandwa, kodwa inketho ngayinye kufanele ihlolwe ukusebenza kwayo kwezempilo kanye nokwenzeka kokuphela kokuphila. Amabhulogi agxile embonini kanye nezinkundla zobuchwepheshe kuvame ukushicilela izifundo zokuqhathanisa; ukuze uthole imininingwane eqhubekayo yomkhakha kanye nokuhlaziywa kwezimo, thintana nesigaba seBlog esigcinwa abahlinzeki kanye nabalingani bezohwebo.

Ohulumeni kanye nemibutho yezimboni emhlabeni wonke bayalungisa imithetho ukuze banciphise ukusetshenziswa kwezinto ze-polythene ezisetshenziswa kanye kuphela futhi bakhuthaze ukujikeleza. Izinyathelo ziqala emiklomelweni ezintweni ezithile ze-polyethylene ezingenawo inani eliphansi kuya ezinhlelweni zokubhekana nomkhiqizi (EPR) ezidinga abakhiqizi ukuthi bahlanganyele ukuqoqwa nokugaywa kabusha. Lezi zinguquko zenqubomgomo zithinta izindawo zokuhlinzekwa kwe-polyethylene polythene kanye ne-pp polyethylene, ziphoqa ukuklanywa kabusha komkhiqizo, izinguquko zamalebula, kanye nokutshalwa kwezimali emandleni okugaywa kabusha. Izinkampani ezithola izinto ze-polythene kufanele zihlale zazi ngezimfuno zesifunda, izibopho zokubika, kanye nezinsuku zokugcina zokuthobela ukuze zigweme izinhlawulo futhi zigcine ukufinyelela emakethe. Abalingani bezohwebo njenge-Qingdao Xinfeng Jincheng International Trade Co., Ltd., bavame ukubuyekeza izinhlu zemikhiqizo kanye nezipho zezinsizakalo ngokuphendula emithethweni; ulwazi olungemuva ngabahlinzeki abanjalo kanye nezinsizakalo zabo zokuthobela lungatholakala ekhasini elithi Mayelana Nathi.

Izinyathelo ezingokoqobo zokunciphisa ukuncika ezintweni ze-polythene ziqala ngokunciphisa umthombo: faka esikhundleni ukupakishwa kwe-low density polyethylene okusetshenziswa kanye kuphela ngezinto ezingasetshenziswa kabusha noma ezinokuqukethwe okusebenzisekayo kabusha lapho kungenzeka khona. Amabhizinisi angaklama kabusha ukupakishwa ukuze kuncishiswe ukusetshenziswa kwezinto, akhethe i-expanded polyethylene lapho ukusebenza kokuvikela kukufanelekele khona izindleko zemvelo, futhi achaze izinhlanganisela ze-pp polyethylene ezinokuqukethwe okusebenzisekayo ukuze kufezeke imigomo yokusimama. Ukusebenzisa ukuqoqwa okuqinile nokuhlukaniswa endaweni kuthuthukisa ikhwalithi yezinto ezisebenzisekayo kabusha, okuvumela ukusetshenziswa kabusha kwe-polyethylene polythene ezinhlelweni ezingezona ezokudla. Imikhankaso yokuqeqesha amakhasimende kanye nokubambisana nabalingani bezokuthutha ezinhlelweni zokupakisha ezibuyiswayo kusiza ukuvala imijikelezo yezinto kanye nokunciphisa ukukhiqizwa kukadoti. Ngokubandakanyeka ngqo nabahlinzeki, amaqembu okuthenga angasebenzisa ikhasi elithi Xhumana Nathi ukucela idatha yezobuchwepheshe, izitifiketi, kanye nezinhlelo zokuhlola ezibambisanayo ukuze kuhlolwe izinto ze-polythene ezinomthelela ongaphansi.

Ukuqaliswa ngempumelelo kwezindlela zokuphatha i-polythene kuhlanganisa inqubomgomo yokuthenga, ukuklama umkhiqizo, kanye nokuhlola impilo yonke yomkhiqizo. Izinqubomgomo zokuthenga kufanele zinikeze izinsiza ezibonisa ukusebenza kwazo kwezemvelo, zinikeze izigaba ezinezingxenye ezisetshenziswe kabusha, futhi zinikeze izixazululo zokuphela kwempilo. Ukuklama ukuze kusetshenziswe kabusha kufaka phakathi ukugwema izendlalelo eziningi ezivimbela ukuhlukaniswa nokukhetha ama-polymer ahambisanayo njengokuhlanganiswa okuhambisanayo kwe-pp polyethylene ne-polyethylene polythene lapho ukusetshenziswa kabusha kuyinto ebalulekile. Ukuhlela impilo yonke kudinga ukubala ukushintshana phakathi komsebenzi wokuvikela nezindleko zemvelo; ngezinye izikhathi ama-film aphezulu noma izixazululo ze-polyethylene ezakhiwe kahle zinciphisa udoti wonke ngokuvimbela ukulimala komkhiqizo. Amaqembu asebenza ngokubambisana — afaka i-R&D, ukuthenga, kanye nezikhulu zezimiso — akhiqiza imiphumela emihle kakhulu lapho kuhlolwa izinto ezintsha noma imiqondo yokupakisha. Kuhlu lwezinketho zezinto kanye namakhono abahlinzeki ukuze kusekelwe lezi zivivinyo, buyekeza ikhasi lasekhaya ukuze uhlonze abakhiqizi abanikeza izinhlobonhlobo zezinto zepulasitiki nemishini.

Abakhiqizi abaningana baphumelele ukunciphisa ukusetshenziswa kwezinto ze-polythene ngokuklama kabusha ukupakisha nokutshala imali engqalasizinda yokugaywa kabusha. Esinye isibonelo, inkampani yezimpahla zabathengi yafaka izindwangu ze-polyethylene ezingajwayelekile ezincane ngefilimu ezisebenza kakhulu ezagcina izakhiwo zokuvikela ngenkathi inciphisa isisindo sezinto eziluhlaza ngo-20%. Esinye isibonelo sasibandakanya ukushintsha imicamelo ye-polyethylene eyandisiwe nge-pulp eyenziwe ngezinto ezibunjiwe lapho ukufakwa komoya okushisayo kungadingeki, kwathuthukisa kakhulu ukukwazi ukubola ekupheleni kwempilo. Abathengisi abasebenzisa izinhlelo zokubuyisa ukupakisha kwe-polyethylene polythene bathuthukise imifudlana yokugaywa kabusha futhi badala izinto zokucubungula okwesibili zibe izimpahla ezihlala njalo. Lezi zifundo zibeka phambili ukubaluleka kokuhlolwa kwe-pilot, ukubambisana nabahlinzeki, kanye nezilinganiso ezicacile zokuhlola imiphumela yemvelo neyezomnotho.

Izinto ze-Polythene zizoqhubeka nokuba yingxenye ebalulekileyo kwezimboni ezininzi kwixesha elizayo elibonakalayo, kodwa impembelelo yazo ingalawulwa ngokukhetha izinto ezinekhono, ukuthotyelwa kwemithetho, kunye notyalo-mali kwiinkqubo ezijikelezayo. Amashishini aphambili ezinketho ze-polyethylene ezinegazi eliphantsi ezizinzileyo, i-polyethylene eyandisiweyo ethengiweyo ngokufanelekileyo, kunye ne-polyethylene ye-pp enokuphinda isetyenziswe inganciphisa ukukhutshwa kwe-lifecycle kunye nokungcola ngelixa kugcinwa ukusebenza kwemveliso. Ukubandakanya ababoneleli, kubandakanya iinkampani ezinje nge-13791924718 kunye namaqabane ayo orhwebo, ngoncedo lobuchwepheshe kunye neeprojekthi zokuqala yinyathelo elisebenzayo eliya ekusebenzeni okuzinzileyo. Kubafundi abalungele ukuhlola imininingwane yemveliso, iinkonzo zababoneleli, okanye izinyathelo ezihlanganyelweyo, amaphepha eMveliso kunye noQhakamshelana nathi anikezela ngeendlela eziqondileyo zokuqalisa ukusebenza kunye nokuphucula ulawulo lwezinto.

Ukuze uqhubeke nocwaningo ngezinto ze-polythene namakhono abahlinzeki, sebenzisa izinsiza zangaphakathi namakhasi abahlinzeki njenge-HOME ukuze uthole izibuyekezo zabahlinzeki, Imikhiqizo ukuze uthole imininingwane yezinto, Mayelana Nathi ukuze uthole amaphrofayela ezinkampani, Ibhulogi ukuze uthole ukuphawula komkhakha, kanye Nathi Xhumana ukuze uqale ukuthenga noma imibuzo yezobuchwepheshe. Lezi zixhumanisi zisiza amabhizinisi ukuthi axhumanise izidingo zobuchwepheshe nabahlinzeki bemakethe ukuze kufezeke izinjongo zokusebenza nokusimama.