Cov yas degradable hais txog kev degradation nyob rau hauv tej yam ntuj tso ciam teb xws li av, xuab zeb, dej tshiab, seawater ib puag ncig, tshwj xeeb tej yam kev mob xws li composting tej yam kev mob los yog anaerobic digestion, thiab ua rau degradation, thiab thaum kawg degrades ua carbon dioxide (CO2) los yog / thiab methane (CH4). ), dej (H2O) thiab moineralized inorganic ntsev ntawm no thiab tshiab biomass (xws li microbial tuag, thiab lwm yam).
Tam sim no, muaj ntau yam ntaub ntawv uas tuaj yeem biodegradable cutlery (lub thawv, tais, khob, tais, tais, riam, diav rawg, diav, chopsticks, straw, thiab lwm yam) feem ntau suav nrog:
1. Kev ua kom zoo ntawm cov yas yas xws li Pla, PBAT, PHB, PBS, PBT, thiab lwm yam.
2. High inorganic puv photobiocrinct degradation ntawm calcium carbonate, photosensitizer composite tsoos plastics;
3. Starch composite tsoos plastics;
4. Starch composite degradable yas;
5. Tag nrho cov hmoov txhuv nplej siab yas;
6. Cov khoom siv biomass (qab zib canesets, straw nroj tsuag thiab nroj tsuag), thiab lwm yam.
Risk point raubiodegradableyas tableware
1, tag nrho kev tsiv teb tsaws
Tag nrho cov kev txav mus los yog hais txog tag nrho cov khoom uas tsis yog-volatile nyob rau hauv cov khoom noj simulators uas tsiv los ntawm cov khoom noj khoom haus thiab cov khoom. Cov ntaub ntawv ntxiv cov yas rov qab los yog cov khoom siv ntau ntxiv tau ntxiv rau cov khoom siv raw, uas yuav ua rau tsis ua raws li tag nrho cov kev tsiv teb tsaws chaw. Tsis tas li ntawd, nws muaj peev xwm degrade cov hmoov txhuv nplej siab hauv plastics, cog fibers, thiab cov zoo li tau yooj yim tsiv mus rau hauv cov zaub mov, thiab kev siv cov khoom siv raw no yuav muaj kev hem thawj rau tib neeg kev noj qab haus huv.
02, kev siv poov tshuaj permanganate
Tus nqi ntawm poov tshuaj permanganate qhia tau hais tias tag nrho cov khoom uas tuaj yeem oxidized los ntawm poov tshuaj permanganate los ntawm cov khoom mus rau dej, thiab noj cov poov tshuaj permanganate hauv dej. Tus nqi ntawm cov poov tshuaj permanganate yog npaj rau tag nrho cov kev txav mus los, tab sis tsis tau them tag nrho, tag nrho cov kev tsiv teb tsaws yog tag nrho cov nyiaj tsis-volatile tshuaj migrated rau hauv cov zaub mov simulation, thiab kev noj cov poov tshuaj permanganate yog xav txog. Cov ntaub ntawv tsiv teb tsaws mus rau tag nrho cov dej-soluble cov khoom hauv dej. Muaj ntau ntau yam laj thawj vim li cas cov poov tshuaj permanganate noj ntau tshaj li tus qauv, xws li hnyav residual, nplaum, additive free nag lossis daus, khoom nws tus kheej dissolution, thiab lwm yam. Nws yog ua tau.
03, kev hloov pauv ntawm polymer monomers
Polymer monomers nyob rau hauv tag nrho degradation bio-yas (PLA, PBAT, PHB, PBS, PBT, thiab lwm yam) tej zaum yuav tsiv los ntawm los yog tsawg dua tsiv teb tsaws vim muaj ntau hom zaub mov thiab kev sib cuag kub thiab sij hawm, Ib hom muaj xws li: terephthalic acid, 1,4 -butanediol, hexamethylene diisocyanate, thiab lwm yam.
04, additives lossis additives
Txhawm rau txhim kho cov txheej txheem ntawm cov khoom siv polymer thiab qhov hloov tau yooj yim ntawm cov ntawv, cov yas yas (xws li phthalate, nonylphenol), lossis hauv cov khoom siv raw, cov khoom siv raw, los yog kom ntev kev pab cuam lub neej ntawm cov khoom, thiab ib co. Cov khoom degradable tau ntxiv rau cov kua nplaum molecular kub yaj, cov tshuaj fluorescent whitening agents, thiab lwm yam, uas yuav ua rau cov tshuaj lom thiab phom sij txav mus rau hauv cov txheej txheem ntawm kev sib cuag zaub mov, thiab maj mam cuam tshuam rau tib neeg' kev noj qab haus huv. Yog li ntawd, nws yuav tsum tau hais tias cov khoom lag luam saw yuav tsum xyuas kom meej cov traceability ntawm cov teeb meem tshuaj, txwv cov ntaub ntawv hais txog cov tshuaj, kis los ntawm txwv cov tshuaj kom nkag siab txog cov tseem ceeb txaus ntshai tshuaj, thiab muab lub hauv paus rau kev txhim kho lub hom phiaj tiv thaiv thiab tswj kev ntsuas.
Order cov lus qhia rau degradable tableware
1. Saib cov npe chaw tsim khoom, chaw nyob, cov ntaub ntawv tiv tauj, tus qauv ua tiav, thiab lwm yam. (cov yas degradable tsis muaj ntau yam teeb meem, tsis muaj ntawv tso cai ntau lawm)
2. Kev saib cov khoom yog kev siv ib zaug lossis rov siv dua. Yog tias koj rov siv cov khoom siv pov tseg, qee qhov kev pheej hmoo tsis paub yuav tshwm sim.
3. Saib cov khoom. Muaj ntau hom khoom siv yas, thiab qee cov ntaub ntawv muaj cov kev cai tshwj xeeb, xws li cov ntaub ntawv PBAT tsis txhob siv los tiv tauj cov khoom noj khov thiab cov khoom noj hauv tub yees, thiab cov ntaub ntawv PHB tsis siv los tiv tauj ethanol.
4. Saib kev siv qhov kub thiab txias (txawm siv microwave). Cov yas degradable feem ntau siv qhov ntsuas kub tsawg dua 100 ° C, feem ntau tsis yog cua sov, thiab qee cov yas degradable tsis tuaj yeem refruid lossis khov (xws li cov khoom PBAT).
5. Saib hom zaub mov hauv cov zaub mov. Nco ntsoov tias muaj cov lus qhia tshwj xeeb uas tsis muaj los luam tawm qee yam khoom noj tshwj xeeb (xws li cov zaub mov acidic, zaub mov ethanol, zaub mov oily, thiab lwm yam).