Cov kws tshawb fawb hauv Suav teb tau tsim cov polyurethane-raws li cov khoom siv fiber ntau uas tuaj yeem ncav cuag tsib npaug ntawm lawv qhov qub ntev, tus kheej- kho tau tom qab raug txiav thiab txhawb nqa kov- teb illuminated textiles.
Cov fibers tau tsim los ntawm ntub dej - spinning sib tov ntawm polyurethane thiab ib tug ionic kua. Qhov tshwm sim ntawm kev sib txuas ion ion - ua lub network tswj txoj hauv kev rau ion txav raws li cov saw hlau nyob ib puag ncig PU tau deformation ntau heev.
Cov kws tshawb fawb los ntawm Donghua University, Jilin University thiab Tuam Tshoj FAW Group tau koom nrog cov fibers rau kev hloov pauv -tam sim no cov khoom siv hluav taws xob electroluminescent npaj rau cov khoom siv coj los hnav thiab tib neeg- tshuab cuam tshuam.
Cov fibers ua tiav qhov elongation ntawm 500% thiab ionic conductivity ntawm 2.8 × 10-6 S / cm. Pab neeg tshawb fawb tau hais tias lawv khaws cov khoom siv kho tshuab ruaj khov dua li rov ua dua cov voj voog uas tsis muaj kev puas tsuaj.
Cov kua ionic dispersed nyob rau hauv lub elastomeric PU matrix tso cai rau lub conductive network kom haum rau kev txav mus los yam tsis muaj kev cuam tshuam ion thauj. Qhov no tau ua rau cov khoom siv txuas ntxiv emitting lub teeb thaum tab tom muaj kev deformations loj.
Cov kws tshawb fawb kuj tau ua kom pom kev kov-tej teeb pom kev zoo uas siv cov capacitive coupling ntawm tus neeg hnav lub cev thiab cov fiber ntau. Kov lub cuab yeej hloov kho nws qhov hluav taws xob thiab ua rau pom cov lus teb tsis tas yuav tsum muaj qhov hloov pauv hloov pauv.
Tom qab cov fiber ntau raug txiav, kev sib cuam tshuam tsis zoo nyob rau hauv lub polyurethane tso cai rau cov chaw txiav kom rov sib txuas ntawm chav tsev kub. Cov kua ionic tom qab ntawd rov ua dua -tsim txoj hauv kev coj mus rau sab hauv, rov ua dua ob qho tib si hluav taws xob conduction thiab lub teeb- emitting kev ua tau zoo.
Pab neeg no tau hais tias cov pa hluav taws xob electroluminescent fibers feem ntau tawm tsam los ua ke nrog kev ncab, kev ua haujlwm ruaj khov thiab ruaj khov teeb pom kev zoo. Kev puas tsuaj rau txoj kev conductive tuaj yeem cuam tshuam cov cuab yeej no mus tas li, thaum rov ua dua tuaj yeem ua rau tawg, delamination lossis poob ntawm cov conductivity.
Cov kws tshawb fawb ntseeg tias kev sib xyaw ua ke ntawm elasticity, tus kheej - kho thiab kov lub teb tuaj yeem ua rau PU fibers haum rau cov khaub ncaws ntse, cov lus qhia tau yooj yim thiab sib tham sib tib neeg- tshuab interfaces.
Kev ua haujlwm tseem nyob hauv chav kuaj, thiab cov kws tshawb nrhiav tsis tau tshaj tawm txog kev lag luam - ntsuas kev tsim khoom, kev sim ntxuav lossis kev ua haujlwm ntev - lub sijhawm ua haujlwm raws li cov khaub ncaws li qub - siv cov xwm txheej.
Txoj kev tshawb no, "Ultrastretchable thiab mechanically robust ionic conductive fibers enables wearable electroluminescent electronics nrog loj deformation kam rau ua thiab lub cev -capacitive coupling," tau luam tawm nyob rau hauv lubPhau ntawv Journal of Materials Scienceon August 11.