Akpa nkwakọ ngwaahịa na-emebi emebi pụtara ihe na-emebi emebi, ma a na-ekewa akpa akpa akpa na-ekewa n'ime ụdị abụọ: ihe na-emebi emebi na nke zuru oke.Akpa nkwakọ ihe na-emebi emebi na-ezo aka ịgbakwunye ụfọdụ ihe mgbakwunye (dịka starch, starch gbanwetụrụ ma ọ bụ cellulose ndị ọzọ, photosensitizers, biodegraders, wdg) mebiri emebi.Akpa nkwakọ ngwaahịa na-emebi emebi kpamkpam na-ezo aka na akpa nkwakọ ngwaahịa rọba na-emebi emebi kpamkpam n'ime mmiri na carbon dioxide.Isi ebe ihe a na-emebi emebi zuru oke bụ nhazi ọka na akpu ka ọ bụrụ lactic acid, ma ọ bụ PLA.
Polylactic acid (PLA) bụ akwụkwọ ndụ akwụkwọ ndụ matriks na ihe nwere ike imeghari.N'iji starch dị ka akụrụngwa, saccharification iji nweta glucose, na mgbe ahụ na-agbakọ glucose na ụfọdụ ụdị iji nweta lactic acid dị ọcha, wee na-ejikọta polylactic acid na ụfọdụ molecular arọ site na njikọ kemịkalụ.Ọ nwere ezigbo biodegradability.Mgbe ejiri ya, ọ nwere ike imebi ya kpamkpam site na microorganisms na okike n'okpuru ọnọdụ ụfọdụ iji mepụta carbon dioxide na mmiri, nke na-adịghị emetọ gburugburu ebe obibi.Ọ bara ezigbo uru iji chebe gburugburu ebe obibi ma bụrụ ihe na-emetụta gburugburu ebe obibi maka ndị ọrụ.
Ka ọ dị ugbu a, ihe bụ isi nke bio dabere na akpa nkwakọ ngwaahịa na-emebi emebi bụ nke PLA + PBAT, nke enwere ike imebi kpamkpam n'ime mmiri na carbon dioxide n'ime ọnwa 3-6 n'okpuru ọnọdụ compoting (ogo 60-70), na-enweghị mmetọ. gburugburu ebe obibi.Kedu ihe kpatara tinye PBAT, onye ọkachamara na-emepụta nkwakọ ngwaahịa na-agbanwe agbanwe, nkọwa na-esonụ bụ na PBAT adipic acid, 1,4-butanediol, terephthalic acid copolymer, nke ukwuu bụ ihe a na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe, PBAT nwere ezigbo mgbanwe, nwere ike ịmalite. extrusion ihe nkiri, nhazi ịfụ, mkpuchi na nhazi ndị ọzọ.Ebumnuche nke ịgwakọta PLA na PBAT bụ imeziwanye ike, biodegradability na nhazi nke PLA.PLA na PBAT ekwekọghị n'etiti onwe ha, yabụ ịhọrọ onye mmekọ kwesịrị ekwesị nwere ike imeziwanye arụmọrụ nke PLA.
Oge nzipu: Jun-30-2022