Wahi a kahi noiʻi hou i paʻi ʻia ma "Applied Materials Today", hiki i kahi mea hou i hana ʻia mai nā nanofibres liʻiliʻi ke pani i nā mea ʻino i hoʻohana ʻia i nā diapers a me nā huahana hoʻomaʻemaʻe i kēia lā.
Ua ʻōlelo nā mea kākau o ka pepa, mai ka Indian Institute of Technology, ʻaʻole i emi ka hopena o kā lākou mea hou i ke kaiapuni a ʻoi aku ka palekana ma mua o ka mea a ka poʻe e hoʻohana nei i kēia lā.
I nā makahiki he ʻumi i hala iho nei, ua hoʻohana nā diapers hoʻolei ʻia, nā tampons a me nā huahana hoʻomaʻemaʻe ʻē aʻe i nā resins absorbent (SAPs) ma ke ʻano he mea absorbers. Hiki i kēia mau mea ke omo i nā manawa he nui o ko lākou kaumaha i loko o ka wai; Hiki i ka diaper maʻamau ke omo i 30 mau manawa o kona kaumaha i loko o nā wai o ke kino. Akā, ʻaʻole biodegrade ka mea: ma lalo o nā kūlana kūpono, hiki i kahi diaper ke hala a hiki i 500 mau makahiki e pala. Hiki i nā SAP ke hana i nā pilikia olakino e like me ka toxic shock syndrome, a ua pāpā ʻia lākou mai nā tampons i nā makahiki 1980.
ʻAʻohe o kēia mau hemahema kahi mea hou i hana ʻia mai nā nanofibers cellulose acetate electrospun. I kā lākou noiʻi ʻana, ua kālailai ka hui noiʻi i ka mea, a lākou e manaʻoʻiʻo nei e hiki ke pani i nā SAP i hoʻohana ʻia i kēia manawa i nā huahana hoʻomaʻemaʻe wahine.
"He mea nui e hoʻomohala i nā koho palekana ʻē aʻe i nā huahana i loaʻa ma ke kālepa, hiki ke hoʻoulu i ka toxic shock syndrome a me nā hōʻailona ʻē aʻe," wahi a Kauka Chandra Sharma, ka mea kākau o ka pepa. Manaʻo mākou e hoʻopau i nā mea ʻino i hoʻohana ʻia i nā huahana i loaʻa ma ke kālepa i kēia manawa a me nā resins superabsorbent non-biodegradable ma ke kumu o ka hoʻololi ʻole ʻana i ka hana o ka huahana a i ʻole ka hoʻomaikaʻi ʻana i kona omo wai a me ka ʻoluʻolu.
He mau olonā lōʻihi a lahilahi nā nanofibers i hana ʻia e ka electrospinning. Ma muli o ko lākou ʻili nui, manaʻoʻiʻo nā kānaka noiʻi he ʻoi aku ka omo o lākou ma mua o nā mea i loaʻa. ʻO ka mea i hoʻohana ʻia i nā tampons i loaʻa ma ke kālepa, ua hana ʻia me nā olonā pālahalaha, i hoʻopaʻa ʻia ma kahi o 30 microns ma hope. ʻO nā nanofibers, ma ke ʻano ʻē aʻe, he 150 nanometers ka mānoanoa, he 200 manawa ka lahilahi ma mua o nā mea o kēia manawa. ʻOi aku ka ʻoluʻolu o ka mea ma mua o nā mea i hoʻohana ʻia i nā huahana i loaʻa a waiho i nā koena liʻiliʻi ma hope o ka hoʻohana ʻana.
He porous hoʻi ka mea nanofiber (ma luna o 90%) e hoʻohālikelike ʻia me ka maʻamau (80%), no laila ʻoi aku ka omo. Hiki ke hana ʻia kekahi kiko hou: me ka hoʻohana ʻana i nā hoʻāʻo saline a me ka mimi synthetic, ʻoi aku ka omo o nā olonā lole electrostatic ma mua o nā huahana i loaʻa ma ke kālepa. Ua hoʻāʻo pū lākou i ʻelua mau mana o ka mea nanofibre me nā SAP, a ua hōʻike nā hopena ua hana maikaʻi ka nanofibre wale nō.
"Hōʻike kā mākou mau hopena e hana maikaʻi ana nā nanofibers lole electrostatic ma mua o nā huahana sanitary i loaʻa ma ke kālepa ma ke ʻano o ka omo ʻana o ka wai a me ka ʻoluʻolu, a ke manaʻoʻiʻo nei mākou he moho maikaʻi lākou e pani i nā mea ʻino e hoʻohana ʻia nei," wahi a Kauka Sharma. "Manaʻolana mākou e loaʻa ka hopena maikaʻi i ke olakino kanaka a me ke kaiapuni ma o ka hoʻohana palekana a me ka hoʻolei ʻana i nā huahana sanitary."
Ka manawa hoʻouna: Malaki-08-2023
