Pakadali pano,biodegradable zodzikongoletsera ma CD zipangizoZakhala zikugwiritsidwa ntchito kulongedza zolimba zamafuta, zopakapaka ndi zodzoladzola zina. Chifukwa chapadera cha zodzoladzola zokha, sizimangofunika kukhala ndi maonekedwe apadera, komanso zimafunikanso kukhala ndi phukusi lomwe limakwaniritsa ntchito zake zapadera.
Mwachitsanzo, kusakhazikika kwachilengedwe kwa zopangira zodzikongoletsera kuli pafupi ndi chakudya. Chifukwa chake, zopaka zodzikongoletsera ziyenera kupereka zotchinga zogwira mtima kwambiri ndikusunga zodzikongoletsera. Kumbali imodzi, ndikofunikira kudzipatula kwathunthu kuwala ndi mpweya, kupewa makutidwe ndi okosijeni wazinthu, ndikupatula mabakiteriya ndi tizilombo tating'onoting'ono kuti tisalowe mu mankhwalawa. Kumbali inayi, ziyeneranso kuletsa zosakaniza zogwiritsira ntchito zodzoladzola kuti zisawonongeke ndi zipangizo zonyamula katundu kapena kuchita nawo panthawi yosungirako, zomwe zidzakhudza chitetezo ndi khalidwe la zodzoladzola.
Kuphatikiza apo, zodzikongoletsera zodzikongoletsera zimakhala ndi zofunikira zachitetezo chachilengedwe, chifukwa pazowonjezera zodzikongoletsera, zinthu zina zovulaza zimatha kusungunuka ndi zodzoladzola, zomwe zimapangitsa kuti zodzoladzola zikhale zoipitsidwa.
Zida zopangira zodzikongoletsera za biodegradable:
Zithunzi za PLAali ndi processability wabwino ndi biocompatibility, ndipo panopa ndi biodegradable ma CD zinthu zodzoladzola. Zinthu za PLA zimakhala ndi kukhazikika bwino komanso kukana kwamakina, zomwe zimapangitsa kukhala chinthu chabwino pakuyika zodzikongoletsera zolimba.
Cellulose ndi zotumphukira zakendi ma polysaccharides omwe amagwiritsidwa ntchito kwambiri popanga mapaketi ndipo ndi ma polima achilengedwe omwe amapezeka kwambiri padziko lapansi. Amakhala ndi mayunitsi a shuga omwe amalumikizidwa pamodzi ndi B-1,4 glycosidic bond, zomwe zimapangitsa maunyolo a cellulose kupanga zomangira zolimba za ma interchain hydrogen. Kupaka kwa cellulose ndikoyenera kusungirako zodzoladzola zowuma zopanda hygroscopic.
Zida zowumandi ma polysaccharides opangidwa ndi amylose ndi amylopectin, omwe amachokera ku mbewu monga chimanga, chinangwa ndi mbatata. Zipangizo zopangira malonda ndi wowuma zimakhala ndi wowuma ndi ma polima ena, monga polyvinyl mowa kapena polycaprolactone. Zida za thermoplastic zowuma izi zakhala zikugwiritsidwa ntchito m'mafakitale osiyanasiyana ndipo zimatha kukumana ndi zomwe zimagwiritsidwa ntchito potulutsa, kuumba jekeseni, kuumba nkhonya, kuwomba filimu ndi kutulutsa thovu pazopaka zodzikongoletsera. Oyenera pa non-hygroscopic dry cosmetic phukusi.
Chitosanali ndi kuthekera kwapang'onopang'ono ngati zinthu zopakira zodzoladzola zodzikongoletsera chifukwa cha antimicrobial. Chitosan ndi cationic polysaccharide yochokera ku deacetylation ya chitin, yomwe imachokera ku zipolopolo za crustacean kapena fungal hyphae. Chitosan itha kugwiritsidwa ntchito ngati zokutira pamakanema a PLA kuti apange ma CD osinthika omwe amatha kuwonongeka komanso antioxidant.
Nthawi yotumiza: Jul-14-2023
