1.Biodegradation bag，Iingxowa zeBiodegradation ziingxowa ezikwaziyo ukuboliswa ziibhaktheriya okanye ezinye izinto eziphilayo. Malunga nama-500 eebhiliyoni ukuya kwi-1 yeetriliyoni zeengxowa zeplastiki zisetyenziswa minyaka le.Iingxowa ze-Biodegradation ziingxowa ezikwazi ukuboliswa ziibhaktheriya okanye ezinye izinto eziphilayo. Malunga nama-500 eebhiliyoni ukuya kwi-1 yetriliyoni yeengxowa zeplastiki ezisetyenziswa minyaka le.
2.Ukwahlula phakathi kwe "biodegradable" kunye "compostable"
Ngokwesiqhelo, igama elithi biodegradable linentsingiselo eyahlukileyo kune-compost.Biodegradable ngokulula lithetha ukuba izinto zinokubola ngebhaktiriya okanye ezinye izinto eziphilayo, kwaye "umgquba" kwishishini leplastiki uchazwa njengokukwazi ukubola kwimeko ye-aerobic egcinwe kwindawo ethile. ubushushu obulawulwayo kunye neemeko zokufuma.I-Compospost kukukwazi ukubola kwintsimi yomgquba, ukwenza izinto ezibonakalayo zingabonakali kwaye ziboliswe zibe yicarbon dioxide, amanzi, i-inorganic compounds kunye ne-biomass ngesantya esihambelanayo.
Ukubandakanywa "kwezinto ezingaphiliyo" akuquki imveliso yokugqibela ekubeni ithathwe njenge-compost okanye i-humus, eyi-organic material kuphela. Enyanisweni, umgangatho we-xxx ofunekayo ukuze iplastiki ibizwe ngokuba ngumgquba phantsi kwenkcazo ye-ASTM kukuba kufuneka inyamalale ngexesha elinye. ireyithi njengenye into umntu asele eyazi ukwenza umgquba phantsi kwenkcazo yemveli.Iingxowa zeplastiki zingenziwa kwipolymer yeplastiki eqhelekileyo (oko kukuthi, i-polyethylene) okanye i-polypropylene kwaye ixutywe kunye ne-additive ebangela ukuthotywa kwe-polymer (i-polyethylene) kwaye emva koko i-biodegradable ngenxa.
3.Impahla yengxowa enokubola
yomelele njengoko iqinile kwaye ithembekile njengeengxowa zemveli (ingakumbi i-polyethylene).Iingxowa ezininzi zenziwe ngephepha, izinto eziphilayo, okanye i-polyhexanolactone."Uluntu lubona i-biodegradable yinto enomlingo," nangona igama lisetyenziswa ngokubanzi, ngokutsho kukaRamaniNarayan, injineli yeekhemikhali kwiYunivesithi yase-East Lansing Michigan State kunye nomcebisi wesayensi kwiZiko leePlastiki zeBiodegradable. kunye negama elisetyenziswe gwenxa kwisichazi-magama sethu.KwiNdawo yeNkunkuma yePasifiki eNkulu, iplastiki ebolisekayo iyaqhekeka ibe ngamaqhekeza amancinci anokungena lula kwitsheyini lokutya ngokusetyenziswa.
4.Ukurisayikilishwa kweengxowa ezinokonakala.
Inkunkuma engaphakathi kwisityalo idla ngokuphinda isetyenziswe, kodwa kunzima ukuyilungisa kwaye isetyenziswe kwakhona emva kokusetyenziswa. abahlaziyo abasayi kuyamkela ngenxa yokuba akukho sifundo sexesha elide malunga nokuba nokwenzeka kweemveliso ezinokuthi zisetyenziswe kwakhona eziqulethe ezi zongezelelo.Ukongezelela, i-Institute for Biodegradable Plastics (BPI) yathi ukuqulunqwa kwezongezo kwiifilimu ezine-oxidized ziyahluka ngokubanzi, ezizisa ukuguquguquka okukhulu. kwinkqubo yokurisayikilisha.
Ixesha lokuposa: Jun-15-2022