Zodzoladzola zomwe zimawonongeka zitha kusintha makampani opanga zodzoladzola.

Moyo uli wodzaza ndi ma phukusi onyezimira, mabotolo okongoletsera, mbale za zipatso ndi zina zambiri, koma zambiri mwa izo zimapangidwa ndi zinthu zoopsa komanso zosakhazikika zomwe zimapangitsa kuti pulasitiki iipitsidwe.

Posachedwapa, ofufuza ku Yunivesite ya Cambridge ku UK apeza njira yopangira glitter yokhazikika, yopanda poizoni komanso yosawonongeka kuchokera ku cellulose, chinthu chachikulu chomwe chimamanga makoma a maselo a zomera, zipatso ndi ndiwo zamasamba. Mapepala ena ofanana adasindikizidwa mu magazini ya Nature Materials pa 11th.

Chopangidwa kuchokera ku makristalo a cellulose nanocrystals, glitter iyi imagwiritsa ntchito mtundu wa kapangidwe kake kuti isinthe kuwala kuti ipange mitundu yowala. Mwachitsanzo, m'chilengedwe, kunyezimira kwa mapiko a gulugufe ndi nthenga za pikoko ndi zinthu zaluso kwambiri zamtundu wa kapangidwe kake, zomwe sizidzatha patatha zaka zana.

Pogwiritsa ntchito njira zodzipangira zokha, cellulose imatha kupanga mafilimu amitundu yowala, ofufuzawo akutero. Mwa kukonza bwino njira yothetsera cellulose ndi magawo ophikira, gulu lofufuza lidatha kuwongolera mokwanira njira yodzipangira yokha, zomwe zidalola kuti zinthuzo zipangidwe mochuluka m'ma rolls. Njira yawo imagwirizana ndi makina omwe alipo kale m'mafakitale. Pogwiritsa ntchito zipangizo zogulitsa za cellulosic, zimangofunika masitepe ochepa kuti zisinthe kukhala suspension yokhala ndi glitter iyi.

Atapanga mafilimu a cellulose pamlingo waukulu, ofufuzawo anawapera kukhala tinthu tating'onoting'ono tomwe kukula kwake timagwiritsidwa ntchito popanga glitter kapena effect pigment. Tinthu tating'onoting'ono titha kuwonongeka, sitili ndi pulasitiki, komanso sitili ndi poizoni. Kuphatikiza apo, njirayi siigwiritsa ntchito mphamvu zambiri kuposa njira zachikhalidwe.

Zipangizo zawo zitha kugwiritsidwa ntchito m'malo mwa tinthu ta pulasitiki tonyezimira ndi utoto wa mchere timene timagwiritsidwa ntchito kwambiri mu zodzoladzola. Utoto wachikhalidwe, monga ufa wa glitter womwe umagwiritsidwa ntchito tsiku ndi tsiku, ndi zinthu zosakhazikika ndipo zimaipitsa nthaka ndi nyanja. Kawirikawiri, mchere wa utoto uyenera kutenthedwa kutentha kwa 800°C kuti upange tinthu ta utoto, zomwe sizikugwirizana ndi chilengedwe.

Filimu ya cellulose nanocrystal yokonzedwa ndi gululo ikhoza kupangidwa pamlingo waukulu pogwiritsa ntchito njira ya "roll-to-roll", monga momwe pepala limapangidwira kuchokera ku matabwa, zomwe zimapangitsa kuti izi zikhale zamakampani koyamba.

Ku Ulaya, makampani opanga zodzoladzola amagwiritsa ntchito matani pafupifupi 5,500 a mapulasitiki ang'onoang'ono chaka chilichonse. Wolemba wamkulu wa nkhaniyi, Pulofesa Silvia Vignolini, wochokera ku Yusuf Hamid Department of Chemistry ku University of Cambridge, anati amakhulupirira kuti mankhwalawa angasinthe kwambiri makampani opanga zodzoladzola.