Ubuchwephesha obutsha buthembisa ukunyusa izinga lokubuyisela kwakhona.
Zonke iimveliso zeplastiki zitshintshwe ngeendlela zokuchithwa ngokutsha ngokusetyenziselwa uhlobo lwe-resin esetyenziswayo. Ikhowudi ye-resin ye-resin yo-identifier i-5, kwaye iphinda iphinde iphinde isetshenziswe.
I-market ye-PP yomhlaba wonke ixabiswa ngaphezu kwama-R80 billion, ngokubhekiselele kuphando lwe-Transparency Market, kwaye likulindeleke ukuba lifike kwi-133.3 billion nge-2023.
Ukubaluleka kweProtepropylene Recycling
Ingqungquthela kunye namandla e-PP yenza ukuba kubekho enye iplastiki yokusetyenziswa kwePlastiki naseUnited States, malunga neekhilogram ezigidi ezi-5 eziveliswe ngo-2010 kuphela e-United States. Kodwa ngokwemveliso yePP kunye namanani okuphinda avuselelwe ahlinzekwa yi-American Chemistry Council, i-PP yenye yeeplastiki ezingaphantsi kwe-post-consumer, kwinqanaba elingaphantsi kweepesenti ezili-1 kwi- PP-foam .
Ngenxa yexesha elifutshane lePP eyenziwe ukupakishwa, uninzi lwala ma-thermoplastiki luphela ekuhlaselweni kwempahla njengenkunkuma. I-Arhente yokuKhuselwa kweNdalo yase-United States ithi malunga nama-20 ekhulwini enkunkuma echanekileyo eveliswayo iquka ezinye iiplastiki ezibandakanya iPP.
Iimveliso ezenziwe nge-PP zihlaziye ngokuthe ngcembe kwipropathi yomhlaba kwaye zithatha malunga neminyaka engama-20 ukuya ku-30 ukuba ziqhekeke ngokupheleleyo. Esi sibonakaliso sichaphazela kakhulu kwindawo yethu. Izongezo ezisetyenziswe kwimveliso yeplastiki ingaba neetekisi ezinjenge-lead kunye ne-cadmium. Uphando lubonisa ukuba i-cadmium equlethwe kwimveliso yeplastiki inokukwazi ukwenza i-percolate kunye nemiphumo eyingozi kakhulu kwinani le-bio-systems.
Kwakhona, ukutshiswa kwama-thermoplastics njengePP kunokukhupha i-dioxins kunye ne-vinyl chloride. Le ngxaki yenza ukungcola kwendalo kungenxa yePP kutsha ingxaki ebalulekileyo ekuqwalaseleni.
I-Recycling Polypropylene yindlela ekhethekileyo yokukhetha ukujongana nale meko ngendlela eco-friendly kunye nexabiso.
Inkqubo yokubuyisela iProproprolene
Inkqubo yokubuyisela kwakhona iquka amanyathelo amahlanu okuhlanganisa ukuqokelela, ukuhlenga, ukucoca, ukuhlaziya ngokutshabalalisa nokuvelisa iimveliso ezintsha kwiP PP. Ngoko, amanyathelo amathathu okuqala afana nokubuyisela kwakhona ezinye izinto eziphathekayo. Kodwa ezimbini zokugqibela zibalulekile. Kwinqanaba lokubuyisela, iimveliso ze-PP eziqokelelwayo zondliwa kwi-extruder apho iyancibilika kwi-4640F (i-2400C) kwaye igalelwe i-granules. Ezi zibumba zilungele ukusetyenziswa kwimveliso emitsha. Ukusetyenziswa kwamagcino ekhoyo kwamanje kwenza kube lula ukuba iinkampani zizinyibilike iPP kwaye zizise ekuveliseni izinto ezintsha.
Iingxaki kunye namathuba kwi-Polypropylene Recycling
Imizamo yokuphucula ukubuyiswa kwe-PP iye yaqhubeka. I-Nextek Ltd., uyi-design yasePlanikhi ye-plastiki kunye ne-recycling consulting nkampani kunye neyokugqibela ye-2013 yokuvuselela i-forum ye-innovators, iqulunqe inkqubo entsha yokunqanda i-polypropylene ye-food grade ukuze iphinde iphinde isetyenziswe kwi-packaged closed.
Ezinye iimfucuza zeplastiki, ngokukodwa iPET , nazo ziye zavelisa ubugcisa bokubuyisela ubugcisa bokufunda. Abaninzi bacinga ukuba kukuphucula okuphawulekayo kwi-polypropylene yokuphinda iphinda iphinde iphinde iphinde iphindwe ngokuphindaphinda ngokutsha ngokukhawuleza kwixesha elizayo. I-Nextek yenze inkqubo iquka amanyathelo amabini.
Isigaba sokuqala siquka ukuxutywa kwePP malunga nama-250 Celsius (ama-degrees ama-Fahrenheit ama-500) ukulahla iimolekyuli ezingcolisayo. Isinyathelo sesibini nesigxina siquka ukususa ama-molecule asele ngexesha lokucoca kunye nokuqiniswa malunga ne-140 Celsius (280 Fahrenheit). Iimveliso ezenziwe ngokulandela le nkqubo zinokudibaniswa nentombi PP kwizinga ukuya kuma-50 ekhulwini. Kodwa umceli-mngeni oyinqobo we-polypropylene kwakhona ukunyusa izinga lokuphindaphinda i-polypropylene kwaye ngexesha elifanayo ukuphelisa umonakalo onobungozi obungalunganga wePolproprolene.
Njengoko kuchazwe ngasentla, ngoku malunga neepesenti ezi-1 zePP zenziwa kwakhona. Kuphela ukuphuhliswa kobuchwephesha obutsha kunye nobuchule bokunceda ukunqoba lo mngeni omkhulu.
NgoJulayi ngo-2017, iProtektri neGamble zamemezela intsebenziswano nePureCycle Technologies ekwakheni isityalo sokubuyisela kabusha iPP e-Lawrence County, eOhio. Iza kuphinda iphinde ibuye i-polypropylene ibe yinto efana neyintombi. Kukho imfuno enkulu engapheliyo ye-polypropylene ephindwe kwiindawo zemarike.
Ngokombutho we-Plastics Recyclers (APR), kukho imfuno yeebhiliyoni eziyi-1 zeeplani eziphinda zenziwe kwakhona ngonyaka kwi-North America kuphela; kuquka iipilisi ezili-720 zezigidi 'zeP-quality' eziphinda zenziwe kwakhona. "
I-P & G iphuhlise iteknoloji, leyo ilayisenisi kwi-PureCycle, inkampani ye-portfolio ye-Innventure, i-Wasson Enterprise Partnership, iphinde isekelwe e-Chicago. Umsebenzi wokuqala wokubuyisela iPureCycle uhlonyelwe ukuqala ngoJanuwari 2018. Kuya ku vavanya kwaye kulandelelaniswe inkqubo yokuvuselela iP PP ngaphambi kokuvula isityalo esipheleleyo ngo-2020.