Kev siv nano cerium oxide hauv polymer

Nano-ceria txhim kho ultraviolet aging kuj ntawm polymer.

4f cov qauv hluav taws xob ntawm nano-CeO2 yog qhov nkag siab zoo rau lub teeb nqus, thiab qhov nqus nqus feem ntau yog nyob rau hauv cheeb tsam ultraviolet (200-400nm), uas tsis muaj tus cwj pwm nqus kom pom lub teeb pom kev zoo thiab xa tawm zoo. Ordinary ultramicro CeO2 siv rau ultraviolet absorption twb tau thov nyob rau hauv lub iav kev lag luam: CeO2 ultramicro hmoov nrog particle loj tsawg tshaj li 100nm muaj ntau zoo heev ultraviolet absorption muaj peev xwm thiab shielding nyhuv, Nws yuav siv tau nyob rau hauv sunscreen fiber, tsheb iav, xim, tshuaj pleev ib ce, zaj duab xis, yas thiab ntaub, thiab lwm yam. Nws tuaj yeem siv rau hauv cov khoom siv sab nraum zoov los txhim kho huab cua tiv thaiv, tshwj xeeb tshaj yog nyob rau hauv cov khoom uas muaj siab transparency xav tau xws li pob tshab yas thiab varnishes.

Nano-cerium oxide txhim kho thermal stability ntawm polymer.

Vim qhov tshwj xeeb sab nrauv hluav taws xob qauv ntawmtsawg ntiaj teb oxides, tsis tshua muaj ntiaj teb oxides xws li CeO2 yuav ua tau zoo rau lub thermal stability ntawm ntau polymers, xws li PP, PI, Ps, nylon 6, epoxy resin thiab SBR, uas yuav tsum tau txhim kho los ntawm kev ntxiv tsawg lub ntiaj teb compounds. Peng Yalan et al. pom tias thaum kawm txog kev cuam tshuam ntawm nano-CeO2 ntawm thermal stability ntawm methyl ethyl silicone roj hmab (MVQ), Nano-CeO2 _ 2 tuaj yeem pom tseeb txhim kho cov cua kub cua aging kuj ntawm MVQ vulcanizate. Thaum qhov ntau npaum ntawm nano-CeO2 yog 2 phr, lwm yam khoom ntawm MVQ vulcanizate muaj kev cuam tshuam me ntsis ntawm ZUi, tab sis nws qhov kub tsis kam ZUI yog qhov zoo.

Nano-cerium oxide txhim kho cov conductivity ntawm polymer

Kev taw qhia ntawm nano-CeO2 rau hauv cov khoom siv hluav taws xob tuaj yeem txhim kho qee cov khoom ntawm cov khoom siv hluav taws xob, uas muaj peev xwm siv tau rau hauv kev lag luam hluav taws xob. Conductive polymers muaj ntau yam siv nyob rau hauv ntau yam khoom siv hluav taws xob, xws li cov roj teeb rechargeable, tshuaj sensors thiab lwm yam. Polyaniline yog ib qho ntawm cov khoom siv hluav taws xob uas muaj kev siv ntau zaus, txhawm rau txhim kho nws lub cev thiab cov khoom siv hluav taws xob, xws li hluav taws xob conductivity, magnetic zog thiab photoelectronics, polyaniline feem ntau yog sib xyaw nrog cov khoom siv tsis zoo los tsim cov nanocomposites. Liu F thiab lwm tus tau npaj cov txheej txheem ntawm polyaniline / nano-CeO2 sib xyaw nrog cov molar sib txawv los ntawm in-situ polymerization thiab doping hydrochloric acid. Chuang FY et al. npaj polyaniline / CeO2 nano-composite hais nrog core-plhaub qauv, Nws tau pom tias cov conductivity ntawm composite hais tau nce nrog qhov nce ntawm polyaniline / CeO2 molar ratio, thiab cov degree ntawm protonation mus txog 48.52%. Nano-CeO2 kuj tseem pab tau rau lwm cov khoom siv hluav taws xob. CeO2 / polypyrrole composites npaj los ntawm Galembeck A thiab AlvesO L yog siv los ua cov khoom siv hluav taws xob, thiab Vijayakumar G thiab lwm tus doped CeO2 nano rau hauv vinylidene fluoride-hexafluoropropylene copolymer.Cov khoom siv lithium ion electrode nrog ionic conductivity zoo heev yog npaj.

Technical Performance index ntawm nanocerium oxide