Ukomisa iimpahla elangeni kucingelwa ukuba kunempilo, kwaye kulula kwaye kuyawonga amandla. Iimpahla ezomisiweyo elangeni zinuka kamnandi, kodwa kukho iimpahla ezingafanelanga ukomiswa. Iitawuli zokuhlambela ngomnye umzekelo.
Kutheni itawuli yomiswe emgceni iqinile kwaye irhabaxa njengenyama yenkomo? Ngumbuzo oye wadida izazinzulu ixesha elide, kodwa iqela labaphandi abavela kwiYunivesithi yaseHokkaido eJapan liyisombulule le mfihlelo. Babanga ukuba baqhekeze "isitshixo sokumisa umoya" kwaye kwinkqubo bafunde into ebalulekileyo ngamanzi.
Ukuthetha oko, iingubo ezininzi ezingenziwanga ngeplastiki (ngaphandle kwesilika kunye noboya) zisekelwe kwizinto zezityalo. Umqhaphu lucwecwe olumhlophe olusuka kwimbewu yesihlahla esincinci, ngelixa i-rayon, i-Modal, i-fibrin, i-acetate, kunye ne-bamboo zonke ziphuma kwimicu yomthi. Ifayibha yezityalo yikhompawundi ephilayo enceda ukugcina ukuqina kweendonga zeeseli zesityalo, kwaye ifayibha ifunxa kakhulu, yiyo loo nto sisebenzisa umqhaphu ukwenza iitawuli eziziva ngcono kunepolyester. Iimolekyuli zamanzi zincamathela kwi-cellulose kwaye zinamathele kuyo ngokusebenzisa inkqubo ebizwa ngokuba yi-capillarity, enokuthi idelele ubunzima kwaye itsalele amanzi phezulu.
Ngenxa yokuba amanzi yimolekyuli ye-polar, oku kuthetha ukuba anentlawulo efanelekileyo kwelinye icala kunye nentlawulo embi kwelinye, amanzi atsalwa lula ekuhlawuleni. Iqela lithi ulwakhiwo lweefiber ezinqamlezileyo zomntu ngamnye kwiilaphu ezomisiweyo zomoya ezifana neetawuli zekotoni ngokwenene "zibopha amanzi", okanye amanzi aziphatha ngendlela ekhethekileyo kuba iyakwazi ukuncamathela kwinto ephezu kwayo eyenza njengesandwich, isondeza imicu kunye. Uphando lwamva nje luvela kushicilelo lwamva nje lweJenali yePhysical Chemistry.
Iqela lenze iimvavanyo ezibonisa ukuba ukubopha amanzi kumphezulu wemicu yekotoni kudala uhlobo "lwe-capillary adhesion" phakathi kweentsinga ezincinci. Xa ezi ntambo zinamathelana, zenza ilaphu libe lukhuni ngakumbi. Umphandi weYunivesithi yaseHokkaido uKen-Ichiro Murata uqaphele ukuba amanzi adibeneyo ngokwawo abonisa isimo esikhethekileyo se-hydrogen, ngokungafani namanzi aqhelekileyo.
Umphandi uTakako Igarashi uthe: "abantu bacinga ukuba, kunokunciphisa ingxabano phakathi kwe-cotton fiber softener, nangona kunjalo, iziphumo zethu zophando zibonisa ukuba iya kukhuthaza itawuli yomqhaphu yomqhaphu we-hydration ukuqina, inika imbono entsha yokuqonda umgaqo wokusebenza kwesithambiso selaphu, sincede siphuhlise ukulungiswa okungcono, ifomula kunye nokwakheka kwelaphu."
Ixesha lokuposa: Jun-24-2022