Chikwama choyikirapo chosawonongeka, tanthauzo lake ndi lonyozeka, koma zoyikapo zowonongeka zimagawidwa kukhala "zowonongeka" ndi "zowonongeka kwathunthu" mitundu iwiri.
The biodegradable pulasitiki thumba amapangidwa ndi udzu zomera ndi ena ochezeka kwa thupi la munthu ndi chilengedwe, zosiyana ndi mapulasitiki atatu kupanga, pambuyo zinyalala, pansi zochita za chilengedwe chilengedwe, akhoza kuwola palokha, ziribe kanthu kwa anthu kapena chilengedwe. alibe vuto lililonse, wa ma CD wobiriwira.Chikwama cha pulasitiki chowonongeka ndi mtundu wa thumba lachikwama lotayira lomwe lingathe kunyozedwa ndikuwonongeka mosavuta.
Matumba apulasitiki owonongeka amatha kugawidwa m'mitundu iwiri kuchokera pakusiyana kwa zinthu zopangira ndi kuwonongeka kwa zinthu:
• Thumba la pulasitiki nthawi zambiri limapangidwa ndi pulasitiki ya polyethylene, yosakanikirana ndi wowuma ndi zinthu zina zowononga zachilengedwe, zomwe zimadziwikanso kuti thumba lapulasitiki losawonongeka.Mtundu wa pulasitiki thumba decomposes makamaka ndi zochita za tizilombo.
• Mtundu winawo umapangidwa makamaka ndi pulasitiki ya polyethylene, yosakanikirana ndi mchere wa mchere monga kuwala kwa desorption agent ndi calcium carbonate, yomwe imatchedwanso light desorption plastic bag.Thumba la pulasitiki lamtunduwu limaphwanyidwa ndi dzuwa.
Thumba lowonongeka kotheratu limatanthauza kuti matumba onse apulasitiki amawonongeka kukhala madzi ndi mpweya woipa.Gwero lalikulu la zinthu zosawonongeka izi zimakonzedwa kuchokera ku chimanga, chinangwa ndi zinthu zina kukhala lactic acid, yomwe imadziwikanso kuti PLA.Poly Lactic Acid (PLA) ndi mtundu watsopano wa gawo lapansi lachilengedwe komanso zinthu zomwe zimatha kuwonongeka.Wowuma zopangira ndi saccharified kuti shuga, ndiyeno shuga ndi zina tizilombo ta thovu kubala mkulu chiyero lactic acid, ndiyeno PLA ndi ena maselo kulemera apanga ndi mankhwala synthesis njira.Ili ndi biodegradability yabwino.Mukatha kugwiritsa ntchito, zitha kuwonongeka kwathunthu ndi tizilombo tating'onoting'ono m'chilengedwe, ndipo pamapeto pake timapanga mpweya woipa ndi madzi.Simaipitsa chilengedwe, chomwe chili chopindulitsa kwambiri poteteza chilengedwe komanso ndi zinthu zokomera anthu ogwira ntchito.
Nthawi yotumiza: Mar-05-2021