Zonyezimira zosawonongeka zitha kusintha makampani opanga zodzoladzola.

Moyo uli wodzaza ndi zopangira zonyezimira, mabotolo odzikongoletsera, mbale za zipatso ndi zina, koma zambiri zimapangidwa ndi zinthu zapoizoni komanso zosakhazikika zomwe zimapangitsa kuti pulasitiki iwonongeke.

Posachedwapa, ofufuza a ku yunivesite ya Cambridge ku UK apeza njira yopangira glitter yokhazikika, yopanda poizoni komanso yowonongeka kuchokera ku cellulose, nyumba yaikulu yomanga makoma a zomera, zipatso ndi ndiwo zamasamba. Mapepala ogwirizana nawo adasindikizidwa mu nyuzipepala ya Nature Materials pa 11th.

Wopangidwa kuchokera ku cellulose nanocrystals, chonyezimirachi chimagwiritsa ntchito mtundu wowoneka bwino kusintha kuwala kuti apange mitundu yowoneka bwino. Mwachirengedwe, mwachitsanzo, kung'anima kwa mapiko agulugufe ndi nthenga za pikoko ndizojambula bwino kwambiri, zomwe sizidzatha pakatha zaka zana.

Pogwiritsa ntchito njira zodzipangira okha, cellulose imatha kupanga mafilimu amitundu yowala, ofufuzawo akuti. Mwa kukhathamiritsa njira ya cellulose ndi ma parameters opaka, gulu lofufuzira lidatha kuwongolera kwathunthu njira yodzipangira, kulola kuti zinthuzo zizipangidwa mochuluka mumipukutu. Njira yawo imagwirizana ndi makina omwe alipo kale. Pogwiritsa ntchito zida za cellulosic zomwe zimapezeka pamalonda, zimangotengera masitepe ochepa chabe kuti musinthe kukhala kuyimitsidwa komwe kumakhala ndi zonyezimira izi.

Atapanga mafilimu a cellulose pamlingo waukulu, ochita kafukufukuwo adawapera kukhala tinthu tating'onoting'ono tomwe timagwiritsidwa ntchito popanga utoto wonyezimira kapena wonyezimira. Ma pellets amatha kuwonongeka, alibe pulasitiki, komanso alibe poizoni. Komanso, ndondomekoyi imakhala yochepa kwambiri yamagetsi kusiyana ndi njira zamakono.

Zinthu zawo zitha kugwiritsidwa ntchito m'malo mwa tinthu tating'onoting'ono ta pulasitiki tonyezimira komanso tinthu tating'ono tating'ono tambiri tomwe timagwiritsa ntchito muzodzola. Mitundu yachikale, monga glitter powders yomwe imagwiritsidwa ntchito tsiku ndi tsiku, ndi zipangizo zosakhazikika ndipo zimaipitsa nthaka ndi nyanja. Nthawi zambiri, mchere wa pigment uyenera kutenthedwa pa kutentha kwakukulu kwa 800 ° C kuti apange tinthu tating'onoting'ono ta pigment, zomwenso sizigwirizana ndi chilengedwe.

Mafilimu a cellulose nanocrystal okonzedwa ndi gululo akhoza kupangidwa pamlingo waukulu pogwiritsa ntchito ndondomeko ya "roll-to-roll", monga momwe mapepala amapangidwira kuchokera ku nkhuni zamatabwa, kupanga zinthuzi kukhala mafakitale kwa nthawi yoyamba.

Ku Ulaya, makampani opanga zodzoladzola amagwiritsa ntchito matani pafupifupi 5,500 a microplastics chaka chilichonse. Mlembi wamkulu wa pepalali, Pulofesa Silvia Vignolini, wochokera ku Yusuf Hamid Dipatimenti ya Chemistry ku yunivesite ya Cambridge, adanena kuti amakhulupirira kuti mankhwalawa akhoza kusintha malonda a zodzoladzola.