Kodi PLA Ikhoza Kuwonongeka?
•Polylactic acid, yomwe imadziwikanso kuti PLA, yakhalapo kwa zaka zambiri. Komabe, opanga akuluakulu a PLA angoyamba kumene kugulitsa zinthu atapeza ndalama kuchokera kumakampani akuluakulu omwe akufuna kusintha mapulasitiki opangidwa. Ndiye, kodi PLA imatha kuwola?
•Ngakhale yankho sili losavuta, tinaganiza zopereka kufotokozera ndikulimbikitsa kuwerenga kwina kwa omwe akufuna. PLA siingawonongeke, koma imatha kuwonongeka. Ma enzyme omwe amatha kuwononga PLA sapezeka kawirikawiri m'chilengedwe. Proteinase K ndi enzyme yomwe imayambitsa kuwonongeka kwa PLA kudzera mu hydrolysis. Ofufuza monga Williams mu 1981 ndi Tsuji ndi Miyauchi mu 2001 adafufuza nkhani ya ngati PLA imatha kuwonongeka. Zotsatira zawo zafotokozedwa m'buku la Biomaterials Science: An Introduction to Medical Materials ndipo zaperekedwa pamsonkhano wa European Biomaterials Society. Malinga ndi magwero awa, PLA imayendetsedwa makamaka ndi hydrolysis, popanda kugwiritsa ntchito mankhwala aliwonse a biologic. Ngakhale anthu ambiri angaganize kuti PLA imatha kuwonongeka, ndikofunikira kuzindikira izi.
•Ndipotu, hydrolysis ya PLA ndi proteinase K ndi yosowa kwambiri kotero kuti sikofunikira mokwanira kuti tikambirane zambiri mu sayansi ya zinthu zachilengedwe. Tikukhulupirira kuti izi zikufotokoza bwino nkhani zokhudzana ndi kuwonongeka kwa PLA ndipo tipitiliza kuyesetsa kupereka mayankho abwino kwambiri pazosowa zanu za pulasitiki zomwe siziwononga chilengedwe komanso zomwe zingawonongeke.
Ipomaliza:
PLA ndi pulasitiki yomwe imatha kuwola yomwe imagwiritsidwa ntchito kwambiri pazinthu za tsiku ndi tsiku monga matumba ndi makapu otayidwa. Komabe, imatha kuwola kokha m'malo opangira manyowa m'mafakitale kapena m'malo opumira omwe alibe mpweya, zomwe zimapangitsa kuti kuwonongeka m'malo achilengedwe kukhale kovuta. Kafukufuku watsimikizira kuti PLA imawola pang'ono m'malo a m'nyanja.
Nthawi yotumizira: Novembala-01-2023
