PLA, nke a makwaara dị ka polylactic acid, nke sitere na poly lactic acid.Polylactic acid nwere ihe magburu onwe biodegradability, ndakọrịta na absorption, ọ bụ ihe na-adịghị egbu egbu, non synthetic polymer material .lts raw material bụ polylactic acid, nke a na-esite na gbaa ụka nke starch, dị ka com na rc.Enwere ike nweta ya site na cellulose, ihe mkpofu kichin ma ọ bụ mkpofu azụ.
PLA nwere ụdị ngwa ngwa dị iche iche, na ngwaahịa ndị sitere na ya nwere ike ịme ya ozugbo ma ọ bụ gbaa ọkụ, nke nwere ike izute ihe ndị a chọrọ maka mmepe na-adịgide adịgide Ezi nghọta na ụfọdụ siri ike, bio-ndakọrịta na okpomọkụ-eguzogide nke PLA bụ isi ihe kpatara ya. maka ngwa ya juru ebe niile.
na mgbakwunye, PLA nwere thermal-plasticity na enwere ike itinye ya n'ọtụtụ ubi, dị ka ihe nkwakọba ihe, ihe ndochi, wdg .. a na-ejikarị ya eme ihe maka ihe ndị a na-eji eme ihe dị ka tableware na nkwakọ ngwaahịa, yana ngwa eletriki na nlekọta ahụike.
E jiri ya tụnyere ngwaahịa petrochemical omenala, oriri ike na mmepụta nke polylactic acid bụ nanị 20% na 50% nke ngwaahịa petrochemical, na carbon dioxide na-emepụta bụ nanị 50% nke ngwaahịa petrochemical. Ya mere, mmepe nke polylactic acid na-emebi ihe dị mkpa. iji belata nsogbu gburugburu ebe obibi na ike ike zuru ụwa ọnụ.
Atụmatụ PLA
1.Biodegradability
E jiri ya tụnyere plastik ọdịnala, polylactic acid nwere ike imebi ya na CO2 na H2O site na microorganisms na ìhè.Ngwaahịa ndị na-emebi ihe na-emebi ndụ anaghị egbu egbu na enweghị mmerụ na ha agaghị emetọ gburugburu ebe obibi.The monomer maka amị polylactic, nke nwere ike fermented site n'ubi dị ka osikapa ọka wit na sugar beet ma ọ bụ ụdị ugbo ụdị ngwaahịa.Ya mere, na akụrụngwa maka imepụta polylactic acid bụ mmeghari ohuru.A na-eji polylactic acid dị ka ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe.
2. Bio-ndakọrịta na absorb-ikike
Enwere ike iji acid ma ọ bụ enzyme mee polylactic acid iji mepụta lactic acid n'ime ahụ mmadụ.Dị ka metabolite nke mkpụrụ ndụ, polylactic acid nwere ike imewanyewanye ya site na enzymes n'ime ahụ, iji mepụta CO2 na H2O.Ya mere, polylactic acid abụghị ihe na-egbu egbu na enweghị mmerụ ahụ n'ahụ mmadụ, ọ nwere ezigbo bio-compatibility na bio-absorb-iki, Polylactic acid bụ nke US Food and Drug Administration kwadoro nke enwere ike iji dị ka ihe bio-material maka ịkụnye n'ime ya. ụmụ mmadụ.
3. N'ụzọ anụ ahụ Machinable
Dị ka ihe eji eme ihe na-ekpo ọkụ na-ekpo ọkụ, poly lactic acid nwere ezigbo plasticity na nhazi nhazi anụ ahụ, nke nwere nnukwu agbaze, ezigbo ngbanwe na mgbanwe, na ikike ịmepụta ọkụ dị mma.Ihe ndị dị na lactic acid dị ka ihe ndị dị ka polypropylene (PP), polystyrene (PS), na polypropylene ether resin (PPO), nwere ike ịhazi ya site na extrusion, ịgbatị, na ịkpụzi nsị.
Oge nzipu: Nov-03-2022
