Polyhydroxyalkanoate PHA

Polyhydroxyalkanoate, yomwe chidule chake ndi PHA, ndi mawu wamba a gulu la ma polyester okhala ndi mamolekyulu ambiri omwe amapangidwa ndi tizilombo toyambitsa matenda. PHA imapangidwa kuchokera ku chimanga, mbatata ndi zina zopangidwa ndi wowuma kapena udzu wa cellulose ngati zinthu zopangira, zowiritsidwa kuti zipange lactic acid, ndikuyeretsedwanso ndikusinthidwa kuti akonze PLA yoyera kwambiri, yomwe ndi yosamalira chilengedwe, yopanda poizoni, yoletsa mabakiteriya, yoletsa moto komanso yogwirizana bwino ndi zinthu zina.

Gulu la PHA lopangira jekeseni, gulu la ma blister, gulu la filimu yopyoza, gulu la thovu, ndi zinthu zina zomwe zimatha kuwola bwino pamzere wonse. Ma PHA ndi mtundu wa zinthu za polyhydroxyalkanoates (PHA), zomwe ndi zinthu za biopolymer zomwe zimapangidwa mwachindunji kudzera mu kuwiritsa kwa tizilombo toyambitsa matenda. Ma PHA ali ndi zinthu zamtengo wapatali monga kugwirizanirana ndi zinthu zina, kuwola bwino, ndi zinthu za piezoelectric. Ali ndi zinthu zabwino zogwiritsidwa ntchito komanso zokonzedwa, ndipo zinthu zawo zoyambira ndizofanana ndi polypropylene. Amatha kukonzedwa ndikupangidwa pogwiritsa ntchito zida zachikhalidwe zopangira pulasitiki monga kupangira jekeseni, kutulutsa, kupukutira filimu, kujambula waya, ndi kuumba, ndipo amatha kusintha mapulasitiki ambiri opangidwa ndi mafuta. Kuchuluka kwa kuwola kwa ma PHA kumatha kulamulidwa ndi kapangidwe ka ma copolymer awo malinga ndi zosowa zosiyanasiyana zogwiritsidwa ntchito.