Polima wangwiro—omwe amalinganiza zinthu zakuthupi ndi magwiridwe antchito a chilengedwe—kulibe, koma polybutylene adipate co-terephthalate (PBAT) imayandikira kuposa ambiri.
Opanga ma polima opangira ma polima akhala akulephera kwa zaka zambiri kuti zinthu zawo zisathere m'malo otayira pansi komanso m'nyanja, ndipo tsopano akukakamizidwa kuti atenge udindo.Ambiri akuyesetsa kulimbikitsa zobwezeretsanso kuti apewe otsutsa.Makampani ena akuyesera kuthana ndi vuto la zinyalala poika ndalama m'mapulasitiki opangidwa ndi biodegradable biobased monga polylactic acid (PLA) ndi polyhydroxyalkanoate (PHA), akuyembekeza kuti kuwonongeka kwachilengedwe kuchepetse zinyalala zina.
Koma zonse zobwezeretsanso ndi biopolymers zimakumana ndi zopinga.Ngakhale ayesetsa kwa zaka zambiri, kuchuluka kwa mapulasitiki obwezeretsanso ku US, mwachitsanzo, akadali ochepera 10%.Ndipo ma biopolymers, omwe nthawi zambiri amapangidwa ndi fermentation, amavutika kuti akwaniritse ntchito yofanana ndi kupanga ma polima opangidwa omwe amayenera kusintha.
PBAT imaphatikiza zina mwazabwino zama polima opangidwa ndi biobased.Amachokera ku petrochemicals wamba-purified terephthalic acid (PTA), butanediol, ndi adipic acid-komabe ndi biodegradable.Monga polima yopangira, imatha kupangidwa mosavuta pamlingo waukulu, ndipo ili ndi mawonekedwe ofunikira kuti apange makanema osinthika omwe amapikisana ndi mapulasitiki wamba.
Wopanga PTA waku China Hengli.Zambiri sizikudziwika, ndipo kampaniyo sinafikiridwe kuti ipereke ndemanga.Pazofalitsa ndi zachuma, Hengli adanena mosiyanasiyana kuti akukonzekera chomera cha 450,000 t kapena chomera cha 600,000 t cha mapulasitiki owonongeka.Koma pofotokoza zinthu zofunika pazachuma, kampaniyo imatchula PTA, butanediol, ndi adipic acid.
Kuthamanga kwa golide kwa PBAT ndikokulirapo ku China.Kampani yaku China yogawa mankhwala a CHEMDO ikupanga kuti kupanga kwa PBAT yaku China kudzakwera pafupifupi 400,000 t mu 2022 kuchoka pa 150,000 t mu 2020.
Nthawi yotumiza: Feb-14-2022