O le a le eseʻesega i le va o degradable, biodegradable ma compostable?

O le faʻavaeina o meaola faʻasolo i luga ole laʻau ma palasitino faʻasolosolo faʻalelei o loʻo lelei le siʻosiʻomaga ma e mafai ona faʻafesuiaʻi le tuʻufaʻatasia o palasitika masani e masani ona gaosia i le suauʻu. O le "Degradable", "biodegradable" ma le "compostable" o ni faaupuga e masani ona vaai iai tagata pe a talanoa e uiga i nei mea. E tali tutusa ae eseese.
A o le fuafuaina o se oloa fou, e taua tele le mafaufau i ana siosiomaga amioga, lea e fesoʻotaʻi ma lona mulimuli togafitiga. O se atugaluga faʻapitoa o mea ia o loʻo faʻaaoga i afifi faʻatau ma tagata faʻatau oloa. O nei mea e tatau ona fuafuaina ia avea ma meaola ma faʻamautinoa e mafai ona latou lafoa i se auala saʻo ma faʻavasega, e fesoasoani i le siʻosiʻomaga puipuiga ma siosiomaga. Mo se faʻataʻitaʻiga, o le faʻapipiʻiina o palasitisi faʻalauteleina ma palasitika pepa ma isi mea faʻalauteleina o meaola, e pei o faʻatanoa otaota, meaʻai ma faʻataʻitaʻiga otaota, e mafai ona gaosia ai le aofaʻi tele o le carbon rich fertilizers (humic material). O le eleele faʻaleleia e le fetilaisa e tele ona lelei, pei o le faʻateleina o mea o loʻo i totonu o le carbon carbon, vai ma mea aoga, faʻaititia ai le faʻaaogaina o vailaʻau ma taofia ai faʻamaʻi o laʻau. I nei aso, ua tele ma sili atu tagata faʻaaogaina faʻapalaga e faʻatumauina le atinaʻe gafataulimaina o faʻatoʻaga faiga. I le tele o atunuʻu, o otaota meaʻai ma isi meaola o loʻo faʻaputuputuina e faʻaputuputuina ma faʻapipiʻiina ina ia maua mai ai ni mea lelei e faʻaleleia atili ai le eleele e toe faʻafoʻi i le fanua e faʻatumauina ai le taamilosaga o le kaponi.

I taimi ua tuanaʻi, o polymers na fuafuaina ia avea ma ni mea le lelei. I aso nei, o le luʻi o le mamanuina o polymers o loʻo iai manaʻoga manaʻoga i le faʻaaogaina ae mafai ona pala i le maeʻa ai ona faʻaaogaina. Ae sili atu le taua, o le faʻaleagaina oloa e le mafai ona oona ma e le mafai ona i ai i le siosiomaga mo se taimi umi, ae mafai ona faʻatamaia atoa e le eleele microorganisms o meaai i se taimi faapitoa o taimi. Ina ia mautinoa maketi taliaina o biodegradable oloa, e leai se masalosalo o nei mea e mafai ona faʻalauteleina i se puʻupuʻu o vaiaso i le faʻatautaia o otaota atinaʻe (nai lo, e mafai ona latou faʻaogaina / faʻaaogaina e microbial enzymes o loʻo i totonu o togafitiga nofoaga).
Ae ui i lea, o nei mea e le lava e faʻamalamalama manino ai le eseesega i le va o le "degradable", "biodegradable" ma le "compostable" palasitika. O loʻo iai isi faʻamatalaga i lalo.
(1) Palasitika leaga
Faʻaleagaina palasitika aofia ai palasitika e mafai ona faʻaleagaina e tino ma meaola meaola (malamalama po o le vevela, poʻo microbial gaioiga). O le mea ua taʻua o le aerobic degradation (o lona uiga ua faʻateleina le faʻaleagaina e le vaega faʻatosina poʻo le tagata faʻatosina i le maualuga o le vevela) poʻo le polyodyladable starch polyethylene plastic e ono mafua ai ni faʻafitauli tau siosiomaga. O nei mea e le faʻaleagaina vave e pei o Compostable Plastics ma ono tuʻu ai otaota. O lapisi o le hydrophobic otaota na faia e ala i le faʻaleagaina e tele lona laufanua o le eleele ma ono faʻasolo atu i le eleele eleele ma le palapala. Nisi hydrophobic ma sili ona oona mea, pei o PCB ma DDT, mafai ona faʻasalalau ma taofia i luga o le hydrophobic otaota, lea e faia ai le anotusi oona vailaʻau maualuga o le 1 miliona taimi o le talaʻaga mataupu, lea e lava e avea ma felauaiga faiga o vailaʻau oona i le siosiomaga. O le mea lea, e manaʻomia ia mautinoa o le oloa e matua faʻalaʻitiiti lava i totonu o se taimi puʻupuʻu taimi ua fuafuaina e le nofoaga o togafitiga.

(2) Palasitika faʻaleagaina
Biodegradable palasitika o palasitika e mafai ona faʻatumuina atoa e meaola niniʻi i le faiga o togafitiga o meaʻai mo le malosi (i totonu o le filifili filifili). Lenei microbial faʻasoʻoina / faʻaaogaina e fuafuaina e le suʻesuʻeina pe o le carbon elemene o le suʻega palasitika mafai ona liua atoa i le CO2 e ala i le microbial gaioiga tupu i totonu o le sela.
(3) Palasitika Faʻapipiʻi
I le faʻaopopoga i le biodegradable e meaola niniʻi, e i ai le taimi manaʻomia mo se palasitika e taʻua o compostable. Mo se faʻataʻitaʻiga, ASTM 6400 (Specification for Compostable Plastics), ASTM d6868 (Faʻamatalaga mo plastik biodegradable mo luga ufiufi o pepa poʻo isi media compostable) poʻo en 13432 (compostable afifiina) faʻamaoniga tuʻuina mai o nei mea e tatau ona faʻalauteleina i totonu o le 180 aso i se faʻapapaina alamanuia siosiomaga Alamanuia faapalaga paluga siosiomaga o lona uiga o le faamaoti vevela e tusa ma le 60 ℃ ma microorganisms tatau ona i ai. E tusa ai ma lenei faʻamatalaga, e le tuʻua e Compostable Plastics ni otaota i mea na totoe e umi atu le umi nai lo le 12 vaiaso, e leai ni uʻamea mamafa poʻo ni vailaʻau oona, ma mafai ona faʻatumauina le ola o laʻau.

O le faapala o se metotia na atiaʻe i tausaga ua tuanaʻi e iloilo ai le ola maloloina o palasitika. O lona aano o se biokimia faʻagasologa o le faʻamoemoeina i siama, actinomycetes ma fungi lautele tufatufaina i le natura e faʻalauiloa ai le suia o biodegradable mea toto i mautu humus. Lenei metotia e vave, aoga, faigofie ma malamalama e iloilo le biodegradability o uga, ma mafai atagia ai le biodegradability o uga i lalo o tulaga masani i se tulaga faapitoa.
Biodegradable Materials matou (Wuhu Radar Plastic Company Limited) gaosiaina oloa ma
O loʻo avea matou PLA ma PBAT ma matou mea taua mo matou oloa gaosi
1, PLA pipiʻi afifi, PLA Faʻata ata tifaga, PLA teuina ata;
2, PLA ato (taga faʻamomafoa taifau faʻapitoa, taga lapisi faʻafuaseʻi), o le PLA + PBAT;
3, PLA straw, biodegradable PLA inu Straw.
Tatou oloa e 100% uma biodegradable ma compostable, o le EN13432, ASTM D6400, BPI, FDA, faʻamaonia.


Taimi Post: Tes-19-2020