Unokwazi njani ukuba imathiriyeli iyabola?Izalathi ezithathu kufuneka zijongwe: izinga lokuthotywa okunxulumeneyo, imveliso yokugqibela kunye nomxholo wentsimbi enzima.Enye yazo ayihambelani nemigangatho, ngoko ke ayinakonakala ngokobugcisa.
Okwangoku, kukho iindidi ezimbini eziphambili zeeplastiki ezithotyiweyo: ukutshintshwa kwengcamango kunye nentsalela emva kokubola.Esona sizathu siphambili sokuvelisa inani elikhulu leeplastikhi zomgunyathi ezonakeleyo kukuba umgaqo-nkqubo wothintelo lweplastiki uqhubele phambili ukukhula okuthe gqolo kwemfuno yasekhaya yeeplastiki ezinokonakala.Okwangoku, "ukuthintelwa kweplastiki" kunqatshelwe ngokupheleleyo kuphela kwimibhobho yeplastiki, kwaye amandla okutshatyalaliswa kwekhaya angagqunywa.Kwixesha elizayo, imathiriyeli eyonakaliswayo iya kuqengqeleka kancinane kwaye isetyenziswe kuzo zonke izixhobo zokutya, kwaye ubudlelwane phakathi konikezelo kunye nemfuno kufuneka kulungelelaniswe ngokuthe ngcembe, kodwa imigangatho kunye nolongamelo lunqongophele.Ngokudityaniswa nexabiso eliphezulu lezinto zokwenyani ezonakaliswayo, amashishini aqhutywa yimidla, amandla okuchongwa kwabathengi abuthathaka, okubangela ukuthotywa kobuxoki.
1. Ingqikelelo yeplastiki engenakonakala iyatshintshwa
Iiplastiki zemveli kunye nezongezelelo ezahlukeneyo zokonakaliswa okanye iiplastiki ze-biobased zixutywe kunye, kwaye ingcamango "yezinto zokutya ezisemgangathweni" kunye "nemveliso yokukhusela indalo" ithathelwa indawo.Isantya sangempela sokuthotywa siphantsi ekugqibeleni, esingahambelani neemfuno zeemveliso ezichithwayo kunye nemigangatho ye-biochemical.
UWu Yufeng, unjingalwazi kwiZiko loQoqosho lweSetyhula kwiYunivesithi yaseBeijing yeTekhnoloji, wathi kudliwano-ndlebe ne-Consumption Daily ukuba "ibakala lokutya" ngumgangatho welizwe kuphela wokhuseleko lwezinto ezibonakalayo, kungekhona isiqinisekiso sokusingqongileyo.“Xa sithetha ‘ngeplastiki enokubola,’ sithetha iiplastiki ezithi, phantsi kweemeko ezithile, ekugqibeleni ziqhekeke zibe yicarbon dioxide okanye imethane, amanzi nezinye izinto eziphilayo.Enyanisweni, nangona kunjalo, ezininzi ezibizwa ngokuba 'ziiplastiki ze-biodegradable' zizinto ezixubeneyo ezidibanisa iiplastiki eziqhelekileyo kunye nezongezo ezahlukeneyo zokuthotywa okanye iiplastiki ze-biobased.Ukongeza, ezinye iimveliso zeplastiki zide zisebenzise izinto zeplastiki ezingonakali, njenge-polyethylene, zongeza i-oxidation degradation agent, i-photodegradation agent, ibango 'enokonakala', ebonisa imarike, iphazamisa imarike. "
2. Intsalela emva kokubola
Yongeza umlinganiselo othile wesitatshi, ngokusebenzisa iipropathi eziphathekayo ze-starch biodegradable materials collapse, PE, PP, PVC, njl. , ayipheleli nje ekuncedeni ukurisayikilisha iplastiki kunye nokucoca, ukuqhekeka kweplastiki kuya kuvelisa umonakalo omkhulu kokusingqongileyo.
Umzekelo, i-D2W kunye ne-D2W1 zizongezo ze-oxidized biodegradation.Iingxowa zeplastiki ezenziwe nge-PE-D2W kunye (PE-HD)-D2W1 ziplastiki eziqhelekileyo ze-oxidized biodegradation, utshilo uLiu Jun, umlawuli we-Shanghai Institute of Quality Supervision and Inspection Technology kunye nenjineli ephezulu yezinga eliphezulu, kudliwanondlebe kunye neBeijing. Iindaba.Ifakwe kwi-GB / T yangoku ye-20197-2006 yokuhlelwa kweeplastiki ezinokuchithwa.Kodwa inkqubo yokunciphisa iiplastiki ezinjalo kukuba ezinkulu ziba zincinci kwaye ezincinci ziphule, ziguqule zibe yi-microplastics engabonakaliyo.
Ixesha lokuposa: Nov-23-2022