Nkwakọ nri comppostable sitere na mkpofu osisi na nshịkọ

A na-ahụ Cellulose na chitin, biopolymers abụọ a na-ahụkarị n'ụwa, na osisi na shells crustacean (n'etiti ebe ndị ọzọ), n'otu n'otu.Ndị ọkà mmụta sayensị nọ na Ụlọ Ọrụ Na-ahụ Maka Nkà na Ụzụ Georgia ewepụtala ụzọ ha ga-esi jikọta abụọ ahụ iji mepụta ngwugwu nri nwere ike ime ka akpa rọba.

N'ịbụ onye Prọfesọ J. Carson Meredith na-edu, ndị otu nyocha ahụ na-arụ ọrụ site n'ịkwụsị cellulose nanocrystals nke ewepụtara n'osisi na chitin nanofibers nke ewepụtara na shei nshịkọ n'ime mmiri, wee fesa ihe ngwọta ahụ n'ime bioavailable na ọkwa ọzọ.A na-emepụta ihe a na ihe eji eme ihe na-emepụta ihe na polymer - ezigbo ngwakọta nke cellulose nanocrystals ebubo na-ezighị ezi na chitin nanofibers nke ọma.

Ozugbo a mịrị amị na peeled site na mkpụrụ, ihe nkiri transperent na-esi na ya pụta nwere nnukwu mgbanwe, ike na compostability.Ihe ọzọ bụ na ọ nwekwara ike karịa ihe mkpuchi rọba na-abụghị comppostable n'ime ka nri ghara imebi.Meredith kwuru, "Ihe nrịbama anyị bụ isi nke a na-atụnyere ihe a bụ PET ma ọ bụ polyethylene terephthalate, nke bụ otu n'ime ihe ndị sitere na mmanụ ala nke ị na-ahụ na nkwakọ ngwaahịa doro anya na igwe na-ere ahịa na ihe ndị yiri ya.""Ihe anyị na-egosi mbelata pasent 67 na ikuku oxygen ma e jiri ya tụnyere ụdị PET ụfọdụ, nke pụtara na ọ nwere ike idobe nri ogologo oge."

Mbelata nke permeability bụ n'ihi ọnụnọ nke nanocrystals."Ọ na-esiri ike maka molekul gas ịbanye n'ime kristal siri ike n'ihi na ọ ghaghị ịkpaghasị usoro kristal," Meredith kwuru."N'aka nke ọzọ, ihe ndị dị ka PET nwere ọtụtụ ihe amorphous ma ọ bụ na-abụghị kristal, ya mere enwere ọtụtụ ụzọ maka obere ikuku gas ịchọta ngwa ngwa."

N'ikpeazụ, ihe nkiri ndị dabeere na biopolymer nwere ike ọ bụghị naanị dochie ihe nkiri plastik nke na-adịghị adị ugbu a mgbe a tụfuru ya, kamakwa na-eji ihe mkpofu osisi na-emepụta n'ụlọ ọrụ na nshịkọ nke ụlọ ọrụ nri azụ tụfuru.Otú ọ dị, ruo mgbe ahụ, a ghaghị ibelata ọnụ ahịa mmepụta ihe na ụlọ ọrụ mmepụta ihe.