1. Kodi ulusi wochokera ku bio ndi chiyani?
● Ulusi wochokera ku zamoyo umatanthauza ulusi wopangidwa kuchokera ku zamoyo zokha kapena kuchokera ku zotulutsa zake. Mwachitsanzo, ulusi wa polylactic acid (PLA fiber) umapangidwa ndi zinthu zaulimi zomwe zili ndi wowuma monga chimanga, tirigu, ndi beet, ndipo ulusi wa alginate umapangidwa ndi algae yofiirira.
● Mtundu uwu wa ulusi wochokera ku zomera siwobiriwira komanso woteteza chilengedwe kokha, komanso umagwira ntchito bwino kwambiri komanso uli ndi phindu lalikulu. Mwachitsanzo, mphamvu zake zamagetsi, kuwononga chilengedwe, kutha kusweka, kusayaka, kukonda khungu, kupha mabakiteriya, komanso kuletsa chinyezi kwa ulusi wa PLA sizotsika poyerekeza ndi ulusi wachikhalidwe. Ulusi wa alginate ndi chinthu chapamwamba kwambiri chopangira ma dressing azachipatala omwe ali ndi hygroscopic kwambiri, kotero uli ndi phindu lapadera pantchito zachipatala komanso zaumoyo.
2. N’chifukwa chiyani muyenera kuyesa zinthu zomwe zili ndi zinthu zachilengedwe?
Pamene ogula akukonda kwambiri zinthu zobiriwira zosakhala ndi chilengedwe, zotetezeka, komanso zochokera ku zomera. Kufunika kwa ulusi wochokera ku zomera pamsika wa nsalu kukuwonjezeka tsiku ndi tsiku, ndipo ndikofunikira kupanga zinthu zomwe zimagwiritsa ntchito kuchuluka kwa zinthu zochokera ku zomera kuti zigwiritse ntchito bwino msika. Zinthu zochokera ku zomera zimafuna zinthu zochokera ku zomera kaya zili mu kafukufuku ndi chitukuko, kuwongolera khalidwe kapena magawo ogulitsa. Kuyesa kwa biobased kungathandize opanga, ogulitsa kapena ogulitsa:
● Kufufuza ndi Kukonza Zamalonda: Kuyesa kochokera ku bio kumachitika panthawi yopanga zinthu zopangidwa kuchokera ku bio, zomwe zimatha kufotokoza bwino zomwe zili mu bio zomwe zili mu malonda kuti zithandize kukonza zinthu;
● Kuwongolera khalidwe: Pakupanga zinthu zopangidwa ndi zamoyo, mayeso opangidwa ndi zamoyo amatha kuchitika pa zinthu zopangira zomwe zaperekedwa kuti azilamulira bwino mtundu wa zinthu zopangira;
● Kutsatsa ndi kutsatsa: Zinthu zochokera ku bio zidzakhala chida chabwino kwambiri chotsatsa malonda, chomwe chingathandize zinthu kupeza chidaliro cha ogula ndikugwiritsa ntchito mwayi wamsika.
3. Kodi ndingadziwe bwanji zomwe zili mu chinthu chopangidwa ndi zamoyo? - Kuyesa kwa Carbon 14.
Kuyesa kwa kaboni-14 kumatha kusiyanitsa bwino zinthu zochokera ku zamoyo ndi za petrochemical zomwe zimapezeka mu chinthu. Chifukwa zamoyo zamakono zimakhala ndi kaboni 14 wofanana ndi kaboni 14 mumlengalenga, pomwe zinthu zopangira petrochemical sizili ndi kaboni 14.
Ngati zotsatira za mayeso a chinthu chopangidwa ndi bio zili ndi 100% ya kaboni wopangidwa ndi bio, zikutanthauza kuti chinthucho chili ndi 100% ya kaboni wopangidwa ndi bio; ngati zotsatira za mayeso a chinthucho zili 0%, zikutanthauza kuti chinthucho chonse ndi cha petrochemical; ngati zotsatira za mayeso zili 50%, zikutanthauza kuti 50% ya chinthucho ndi chachilengedwe ndipo 50% ya kaboni ndi ya petrochemical.
Miyezo yoyesera nsalu ikuphatikizapo muyezo waku America wa ASTM D6866, muyezo waku Europe wa EN 16640, ndi zina zotero.
Nthawi yotumizira: Januwale-08-2022
