Acide Polylactic (Pla): ubundi buryo bwangiza ibidukikije kuri plastiki

Pla ni iki?

Acide ya Polylactic, uzwi kandi nka PLA (Acide Polylactic), ni igihangano cyo mu mutego ukomoka mu isoko rusange nk'ibigori cyangwa ibisurcane cyangwa beti.

Nubwo ari kimwe na plastiki yabanje, imitungo yayo yabaye umutungo uko ishobora kongerwa, bigatuma habaho ubundi buryo busanzwe mubicanwa.

PL iracyari karubone itabogamye, iriba, na biodegrafiya, bivuze ko ishobora kubora burundu mubidukikije bikwiye aho kumena microplastics.

Bitewe nubushobozi bwayo bwo kubora, bikunze gukoreshwa nkibikoresho byo gupakira imifuka ya plastike ya biodegradupation, ibyatsi, ibikombe, amasahani

Uburyo bwo gutesha agaciro Pla

Pla iyobowe no gutesha agaciro ibinyabuzima binyuze mu mikorere itatu:

Hydrolysis: Amatsinda ya Ester muri urunigi nyamukuru yaravunitse, bikaviramo kugabanuka muburemere bwa molekile.

Ubushyuhe bwubushyuhe: Ikintu kigoye kivamo gushyiraho ibice bitandukanye, nko mu mazi yoroshye, umurongo na cyclic hamwe n'uburemere butandukanye bwa molekane, n'ubushishozi.

Amafoto: Imirasire ya ultraviolet irashobora gutera imbaraga. Nibintu nyamukuru bishyikirize aside inkereti yizuba muri plastike, ipakishwa, hamwe nibisabwa bya firime.

Imyuka ya hydrolysis ni:

-Koo- + h 2 o → -cooh + -Oh

Igipimo cyo gutesha agaciro kiratinda cyane ku bushyuhe bwibidukikije. Ubushakashatsi bwa 2017 bwerekanye ko VE idahuye nigihombo cyiza mugihe cyumwaka mumazi yinyanja kuri 25 ° C (77 ° F (77 ° F (77 ° F (77 ° F), ariko ubushakashatsi ntabwo bwapimaga iminyururu cyangwa amazi ya polymer.

Nibihe bice bisabwa bya Pli?

1. Ibicuruzwa
Pla ikoreshwa mubicuruzwa bitandukanye byabaguzi, nkameza yimyandikire, imifuka yo kugura supermarket, ibura ryigikoni yimodoka, kimwe na mudasobwa zigendanwa n'ibikoresho bifite intoki.

2. Ubuhinzi
Pla ikoreshwa muburyo bwa fibre kuri fibre imwe yuburobyi hamwe ninshundura kubimera no kugenzura ibyatsi. Ikoreshwa ku basenyi, urusaku rw'indabyo, imishumi ihatirwa, n'imigozi.

3. Kuvura ubuvuzi
PL irashobora guteshwa agaciro muri acide itagira ingaruka, bigatuma bikwirakwira nkibikoresho byubuvuzi muburyo bwa allkirs, imigozi, amasahani, amapine, inkoni.

Ibihe bine bikunze guswera

1. Gusubiramo:
Irashobora gutungura imiti cyangwa gutunganya imashini. Mu Bubiligi, Galaxy yatangije igihingwa cya mbere cy'indege cyo gutunganya imiti ya pla (uburuhukiro). Bitandukanye no gutunganya ubushishozi, imyanda irashobora kuba irimo imyanya itandukanye. Acide ya Polylactic irashobora kugarurwa nka monomers binyuze muri ubushyuhe bwamagana cyangwa hydrolysis. Nyuma yo kwezwa, monomers irashobora gukoreshwa mugukora pli yijimye utabuze imitungo yabo yumwimerere.

2. Ifumbire:
PL irashobora kubinyabuzima mubihe byifashe inganda, ubanza binyuze kuri hydrolysis yimiti, hanyuma binyuze muri microbial igose, amaherezo yangiritse. Mu bihe by'inganda (58 ° C (136 ° F)), PLA irashobora kunyura mu mazi na dioxyde de carbon mu minsi 60, bitewe na kristu gahoro, bitewe na kristu gahoro gahoro, bitewe na kristu. Mu bidukikije nta miterere ikenewe, kubora bizatinda cyane, bisa na plastike bitarimo ibinyabuzima byose, bitazabora burundu amajana cyangwa ibihumbi.

3. Gutwika:
PLA irashobora gucika intege nta gukora chlorine irimo imiti cyangwa ibyuma biremereye, kuko ikubiyemo karubone gusa, ogisijeni, na atome ya hydrogen. Ikipe yaka umuriro izabyara 19.5 MG (8368 btu / lb) yingufu nta gusiba ibisigisigi. Ibi bisubizo, hamwe nibindi byagaragaye, byerekana ko gushints ari uburyo bwinshuti bwibidukikije bwo kuvura imyanda ya Polylactike.

4. LandFill:
Nubwo PL ishobora kwinjira mumyanda, ni amahitamo adakomeye mu bidukikije kuko ibikoresho bifatika buhoro buhoro ku bushyuhe bw'imbogamizi, mubisanzwe nkuko ari ibindi bikoresho bitari bitesha agaciro.