Cov hnab yas twg yog Biodegradable

Composition thiab Properties:
PLA yog biodegradable thermoplastic polyester tau los ntawm cov khoom siv txuas ntxiv dua tshiab xws li pob kws hmoov nplej lossis qab zib. Cov hnab yas ua los ntawm PLA muaj qhov zoo sib xws thiab zoo li cov hnab yas polyethylene ntau zaus. Lawv yog cov ntshiab thiab muaj peev xwm muaj ntau yam yooj yim thiab lub zog, nyob ntawm cov txheej txheem tsim khoom.

Biodegradation txheej txheem:
PLA - raws li cov hnab ntim zom zom los ntawm kev sib xyaw ua ke ntawm hydrolysis (kuaj nrog dej) thiab kev ua haujlwm microbial. Nyob rau hauv ib puag ncig composting nrog rau qhov kub thiab txias, noo noo, thiab microbial muaj (feem ntau nyob rau hauv industrial composting chaw), PLA hnab yuav decompose nyob rau hauv ob peb lub hlis mus rau ib xyoos. Piv txwv li, nyob rau hauv ib lub qhov dej - tswj kev lag luam compost pawg uas tswj qhov kub ntawm ib ncig ntawm 50 - 60 degrees Celsius thiab muaj dej txaus, PLA hnab yuav pib tawg sai heev.

Composition thiab Properties:
Cov hnab no yog tsim los ntawm kev sib xyaw cov hmoov txhuv nplej siab (feem ntau yog los ntawm cov chaw xws li pob kws, qos yaj ywm, lossis tapioca) nrog rau lwm cov polymers. Cov hmoov txhuv nplej siab tuaj yeem sib txawv, tab sis feem ntau nws yog ib feem tseem ceeb ntawm cov khoom. Lawv tuaj yeem muaj lub zog tensile zoo thiab yoog raws, zoo ib yam li cov hnab yas, thiab feem ntau translucent lossis opaque.

Biodegradation txheej txheem:
Cov hmoov txhuv nplej siab hauv cov hnab no muab ib qho biodegradable nam. Cov kab mob hauv ib puag ncig tuaj yeem rhuav tshem cov hmoov txhuv nplej siab ua ntej. Raws li cov hmoov txhuv nplej siab tau noj, cov qauv ntawm lub hnab yuav ntxeem tau thiab yooj yim rau degradation ntxiv. Nyob rau hauv cov av los yog compost, cov hmoov txhuv nplej siab - cov hnab ntim tau biodegrade nyob rau lub sijhawm ntawm ob peb lub hlis mus rau ob peb xyoos, nyob ntawm seb qhov sib xyaw tshwj xeeb thiab ib puag ncig. Piv txwv li, nyob rau hauv lub vaj teb compost bin nrog ib tug sib tov ntawm av thiab organic teeb meem, cov hnab no yuav maj mam zom raws li cov hmoov txhuv nplej siab yog zom los ntawm cov kab mob thiab fungi.

Composition thiab Properties:
PHA yog ib tsev neeg ntawm biodegradable polyesters tsim los ntawm cov kab mob los ntawm fermentation ntawm cov suab thaj los yog lipids. PHA - raws li cov hnab yas muaj cov khoom siv zoo heev, nrog rau lub zog tensile zoo thiab yooj. Lawv tuaj yeem ua tiav rau hauv cov hnab ntshiab lossis xim thiab muaj qhov zoo sib xws thiab zoo li cov hnab yas.

Biodegradation txheej txheem:
PHA hnab yog biodegradable nyob rau hauv ntau qhov chaw, nrog rau cov av, dej, thiab compost. Hauv av, piv txwv li, cov kab mob ib txwm paub txog PHA yog cov pa roj carbon thiab lub zog thiab ua rau nws tawg los ntawm cov tshuaj tiv thaiv enzymatic. Tus nqi degradation tuaj yeem sib txawv, tab sis feem ntau, PHA - raws li lub hnab tuaj yeem biodegrade hauv ib xyoos lossis ob xyoos hauv qhov tsim nyog ib puag ncig.