Lub hnab yas degrade ntev npaum li cas

1. Tam sim no, cov thev naus laus zis ntawm cov yas degradation tseem ceeb hauv kev ua lag luam tau muab faib ua ob pawg. Ib qho yog tag nrho cov biodegradable plastics, feem ntau yog los ntawm kev nrhiav cov khoom siv roj ntsha uas tsim nyog los hloov cov khoom siv polyethylene ib txwm muaj, thiab tsim thiab ua txhua lub hnab yas biodegradable los ntawm cov khoom siv sib xws. Polyethylene hnab yas siv 300 mus rau 500 xyoo kom degrade rau hauv dej, carbon dioxide, thiab av fertility.
2. Lwm cov txheej txheem yog ntxiv degradable masterbatch rau cov yas yas, uas tuaj yeem degrade hauv tsuas yog 2-3 xyoo.
3. Tsis tas li ntawd, tag nrho cov khoom siv biodegradable plastics kuj zoo vim tias cov khoom siv hauv tshuab no yog PBAT lossis PLA, thiab feem ntau ntawm cov khoom siv raw yog nplej straw, ntoo fiber ntau, xyoob fiber ntau, tshuaj yej, thiab lwm yam. Biodegradable hnab yas muab tso rau ntawm chav tsev kub thiab av noo tas li, thiab feem ntau pib degrade tom qab ib thiab ib nrab xyoo. Yog tias muaj cov kab mob, cov av noo yog 50% ~ 70%, thiab qhov kub ntawm 50 ° ~ 70 ° C. Cov degradation pib hauv 3-6 hli, thiab cov khoom degradation yog carbon dioxide thiab dej.