Kedu ihe dị iche n'etiti akpa nkwakọ ngwaahịa na-emebi emebi na akpa nkwakọ ngwaahịa zuru oke?

Ọtụtụ ndị enyi na-ajụ kedu ihe dị iche n'etiti akpa nkwakọ ngwaahịa na-emebi emebi na akpa nkwakọ ngwaahịa na-emebi emebi? Ọ bụghị otu ihe ahụ dị ka akpa nkwakọ ngwaahịa na-emebi emebi? Nke ahụ dị njọ, enwere ọdịiche dị n'etiti akpa nkwakọ ngwaahịa na-emebi emebi na akpa nkwakọ ngwaahịa zuru oke.

Akpa akpa akwa na-emebi emebi, ihe ọ pụtara bụ na ha nwere ike imebi ya, ma a na-ekewa akpa akpa akpa na-emebi emebi na "na-emebi emebi" na "na-emebi emebi". Kedu ihe dị iche? Gaa n'ihu na-agụ ntakịrị ihe ọmụma nke Anrui nyere.

Akpa nkwakọ ihe na-emebi emebi na-ezo aka ịgbakwunye ụfọdụ ihe mgbakwunye (dịka starch, starch gbanwetụrụ ma ọ bụ cellulose ọzọ, fotosensitizers, biodegradants, wdg) akpa rọba na-emebi emebi.

Akpa nkwakọ ngwaahịa na-emebi emebi n'ụzọ zuru ezu pụtara na akpa nkwakọ ngwaahịa rọba na-emebi kpamkpam ka ọ bụrụ mmiri na carbon dioxide. A na-esi na ọka, akpu na ihe ndị ọzọ amịpụta isi ihe a na-emebi emebi n'ụzọ zuru ezu n'ime lactic acid, nke bụ PLA. Polylactic acid (PLA) bụ ụdị mkpụrụ ndụ ọhụrụ na ihe nwere ike imegharịgharị. A na-asachapụ ngwa nri starch iji nweta glucose, wee gbaa ya site na glucose na ụdị ụfọdụ iji mepụta lactic acid dị ọcha, nke a na-emezi ya site na usoro njikọ kemịkalụ. molekụla arọ polylactic acid. Ọ nwere ezigbo biodegradability, na enwere ike imebi ya kpamkpam site na microorganisms na okike n'okpuru ọnọdụ ụfọdụ mgbe ejiri ya mee ihe, na-emecha na-emepụta carbon dioxide na mmiri, na-enweghị imetọ gburugburu ebe obibi, nke bara uru nke ukwuu iji chebe gburugburu ebe obibi na bụ ihe na-eme ka ndị ọrụ na-arụ ọrụ. Ka ọ dị ugbu a, isi ihe na-adabere na bio nke akpa nkwakọ ngwaahịa na-emebi emebi zuru oke bụ PLA + PBAT, nke nwere ike imebi kpamkpam n'ime mmiri na carbon dioxide n'ime ọnwa 3-6 n'okpuru ọnọdụ nke composting (60-70 degrees), na-enweghị. mmetọ na gburugburu ebe obibi.

Kedu ihe kpatara eji etinye PBAT? Onye injinia kemịkalụ Anrui na-enyocha kemịkalụ nyeere onye nchịkọta akụkọ aka ịkọwa ya. PBAT bụ copolymer nke adipic acid, 1,4-butanediol na terephthalic acid. Ọ bụ njikọ kemịkalụ nwere ike mebie ya kpamkpam. The aliphatic-aromatic polymer nke PBAT nwere magburu onwe mgbanwe na ike ga-eji maka film extrusion, igbu ịkpụzi, extrusion mkpuchi na ndị ọzọ ịkpụzi Filiks. Ebumnuche nke ịgwakọta PLA na PBAT bụ iji melite ike, biodegradation na ịkpụzi nhazi nke PLA. PLA na PBAT ekwekọghị, yabụ ịhọrọ ezigbo ndakọrịta nwere ike imeziwanye arụmọrụ nke PLA.

Lee ebe a ka ịghọta ọdịiche dị n'etiti akpa nkwakọ ngwaahịa na-emebi emebi na akpa nkwakọ ngwaahịa na-emebi emebi.

Akpa akpa akwa na-emebi emebi, ihe ọ pụtara bụ na ha nwere ike imebi ya, ma a na-ekewa akpa akpa akpa na-emebi emebi na "na-emebi emebi" na "na-emebi emebi". Akpa nkwakọ ihe na-emebi emebi na-ezo aka ịgbakwunye ụfọdụ ihe mgbakwunye (dịka starch, starch gbanwetụrụ ma ọ bụ cellulose ọzọ, fotosensitizers, biodegradants, wdg) akpa rọba na-emebi emebi. Akpa nkwakọ ngwaahịa na-emebi emebi n'ụzọ zuru ezu pụtara na akpa nkwakọ ngwaahịa rọba na-emebi kpamkpam ka ọ bụrụ mmiri na carbon dioxide. A na-esi na ọka, akpu na ihe ndị ọzọ amịpụta isi ihe a na-emebi emebi n'ụzọ zuru ezu n'ime lactic acid, nke bụ PLA.

Polylactic acid (PLA) bụ ụdị mkpụrụ ndụ ọhụrụ na ihe nwere ike imegharịgharị. A na-asachapụ ngwa nri starch iji nweta glucose, wee gbaa ya site na glucose na ụdị ụfọdụ iji mepụta lactic acid dị ọcha, nke a na-emezi ya site na usoro njikọ kemịkalụ. molekụla arọ polylactic acid. Ọ nwere ezigbo biodegradability, na enwere ike imebi ya kpamkpam site na microorganisms na okike n'okpuru ọnọdụ ụfọdụ mgbe ejiri ya mee ihe, na-emecha na-emepụta carbon dioxide na mmiri, na-enweghị imetọ gburugburu ebe obibi, nke bara uru nke ukwuu iji chebe gburugburu ebe obibi na bụ ihe na-eme ka ndị ọrụ na-arụ ọrụ.

Ka ọ dị ugbu a, isi ihe na-adabere na bio nke akpa nkwakọ ngwaahịa na-emebi emebi zuru oke bụ PLA + PBAT, nke nwere ike imebi kpamkpam n'ime mmiri na carbon dioxide n'ime ọnwa 3-6 n'okpuru ọnọdụ nke composting (60-70 degrees), na-enweghị. mmetọ na gburugburu ebe obibi. Kedu ihe kpatara eji etinye PBAT? Ndị ọkachamara na-emepụta nkwakọ ngwaahịa na-agbanwe agbanwe nọ ebe a iji kọwaa na PBAT bụ copolymer nke adipic acid, 1,4-butanediol, na terephthalic acid, nke bụ abụba na-emepụta kemịkalụ nke nwere ike ịdị ndụ kpamkpam. Aromatik-aromatic polymer, PBAT nwere ezigbo mgbanwe na enwere ike iji ya mee ihe maka extrusion fim, ịkpụzi ihe, mkpuchi extrusion na usoro ịkpụzi ndị ọzọ. Ebumnuche nke ịgwakọta PLA na PBAT bụ iji melite ike, biodegradation na ịkpụzi nhazi nke PLA. PLA na PBAT ekwekọghị, yabụ ịhọrọ ezigbo ndakọrịta nwere ike imeziwanye arụmọrụ nke PLA.