Polylactic acid (H--[OCHCH3CO]n-OH) ili ndi kukhazikika kwabwino kwamafuta, kutentha kwapang'onopang'ono ndi 170 ~ 230 ℃, ndipo imakhala yabwino kukana zosungunulira.Iwo akhoza kukonzedwa m'njira zosiyanasiyana, monga extrusion, kupota, biaxial kutambasula , jekeseni kuwomba akamaumba.Kuphatikiza pa kukhala biodegradable, mankhwala opangidwa ndi asidi polylactic ndi wabwino biocompatibility, gloss, transparency, manja kumva ndi kutentha kukana.Polylactic acid (PLA) yopangidwa ndi Guanghua Weiye ilinso ndi antibacterial ndi retardant flame properties.Ndipo kukana kwa UV, kotero kumakhala ndi ntchito zosiyanasiyana.Itha kugwiritsidwa ntchito ngati zida zonyamula, ulusi ndi zinthu zopanda nsalu, ndi zina zambiri. Zimagwiritsidwa ntchito kwambiri pazovala (zamkati, zovala zakunja), mafakitale (zomangamanga, ulimi, nkhalango, kupanga mapepala), ndi zamankhwala ndi zaumoyo.
Ubwino waukulu wa polylactic acid ndi awa:
Polylactic acid (PLA) ndi mtundu watsopano wa zinthu zomwe zimatha kuwonongeka, zopangidwa kuchokera ku zopangira zowuma zomwe zimaperekedwa ndi zomera zongowonjezwdwa (monga chimanga).Wowuma zopangira ndi saccharified kupeza shuga, amene ndiye thovu ndi shuga ndi zina tizilombo toyambitsa mkulu-kuyera lactic acid, ndiyeno ena maselo kulemera polylactic asidi apanga ndi kaphatikizidwe mankhwala.Ili ndi biodegradability yabwino.Mukagwiritsidwa ntchito, zitha kuonongeka kwathunthu ndi tizilombo tating'onoting'ono m'chilengedwe, ndipo pamapeto pake mpweya woipa ndi madzi amapangidwa popanda kuwononga chilengedwe.Izi ndizopindulitsa kwambiri pakuteteza chilengedwe ndipo zimazindikirika ngati zinthu zoteteza chilengedwe.Mapulasitiki wamba amathandizidwabe ndi kutenthedwa ndi kutenthedwa, zomwe zimapangitsa kuti mpweya wambiri wowonjezera kutentha utulutsidwe mumlengalenga, pomwe mapulasitiki a polylactic acid amakwiriridwa m'nthaka kuti awonongeke, ndipo mpweya woipa wopangidwa umalowa mwachindunji m'nthaka kapena umatengedwa. ndi zomera, ndipo sizidzatulutsidwa mumlengalenga.Sizidzachititsa greenhouse effect.
Nthawi yotumiza: Jan-06-2021