KODI PLA FILM NDI CHIYANI?
Kanema wa PLA ndi filimu yowola komanso yokonda zachilengedwe yopangidwa kuchokera ku chimanga cha Polylactic Acid resin.organic monga chimanga wowuma kapena nzimbe. Kugwiritsa ntchito zotsalira zazomera kumapangitsa kupanga PLA kukhala yosiyana ndi mapulasitiki ambiri, omwe amapangidwa pogwiritsa ntchito mafuta oyambira pansi pa distillation ndi polymerization yamafuta.
Ngakhale kusiyana kwa zinthu zopangira, PLA ikhoza kupangidwa pogwiritsa ntchito zida zomwezo monga mapulasitiki a petrochemical, zomwe zimapangitsa kuti PLA ikhale yotsika mtengo. PLA ndi yachiwiri yopangidwa ndi bioplastic (pambuyo pa wowuma wa thermoplastic) ndipo ili ndi mawonekedwe ofanana ndi polypropylene (PP), polyethylene (PE), kapena polystyrene (PS), komanso kukhala yosasinthika.
Filimuyi ili ndi kumveka bwino,Mphamvu yabwino yolimbikira,ndi Kuuma kwabwino ndi kulimba.Makanema athu a PLA ndi ovomerezeka kuti apange kompositi malinga ndi satifiketi ya EN 13432
PLA filimu zikutsimikizira kukhala mmodzi wa wapamwamba ma CD filimu mu kusintha ma CD makampani, ndipo tsopano akhala ntchito phukusi kwa maluwa, mphatso, zakudya monga mkate ndi masikono, nyemba khofi.
KODI PLA imapangidwa bwanji?
PLA ndi polyester (polima yomwe ili ndi gulu la ester) yopangidwa ndi ma monomers awiri kapena zomangira: lactic acid, ndi lactide. Lactic acid imatha kupangidwa ndi kuwira kwa bakiteriya kwa gwero lazakudya zama carbohydrate pansi pamikhalidwe yoyendetsedwa bwino. Popanga lactic acid m'mafakitale, chakudya chopatsa thanzi chingakhale chimanga, mizu ya chinangwa, kapena nzimbe, zomwe zimapangitsa kuti ntchitoyi ikhale yokhazikika komanso yongowonjezera.
ENVIRONMENTAL ADVANTAGE OF PLA
PLA ndi biodegradable pansi pa mikhalidwe composting malonda ndipo adzasweka mkati masabata khumi ndi awiri, kupanga izo kusankha kwambiri zachilengedwe pankhani mapulasitiki kusiyana ndi mapulasitiki chikhalidwe amene angatenge zaka zambiri kuwola ndi kutha kupanga microplastics.
Njira yopangira PLA ndiyothandizanso zachilengedwe kuposa mapulasitiki achikhalidwe opangidwa kuchokera ku zinthu zakale zotsalira. Malinga ndi kafukufuku, mpweya wopangidwa ndi PLA ndi 80% wotsika kuposa wa pulasitiki wachikhalidwe (gwero).
PLA ikhoza kusinthidwanso chifukwa imatha kusweka ku monomer yake yoyambirira ndi njira yotenthetsera depolymerization kapena hydrolysis. Zotsatira zake ndi yankho la monomer lomwe limatha kuyeretsedwa ndikugwiritsidwa ntchito pazotsatira za PLA popanda kutayika kwamtundu uliwonse.
Nthawi yotumiza: Jan-31-2023