Sechinhu chetatu-dimensional chakapfuma mumvura, hydrogel ine hunhu hwepamusoro elasticity, pachena uye biocompatibility. Yakave ichishandiswa zvakanyanya mukuonana lenses, cosmetics, tishu engineering, maronda ekupfeka uye mamwe minda. Mumakore achangopfuura, conductive hydrogels yakashandiswa zvakanyanya mumunda we sensors uye inoshanduka yemagetsi zvigadzirwa. Nekudaro, ma hydrogel akajairwa anorasikirwa neayo ekutanga zvivakwa nekuda kwechando nekudziya kwakadzikira, achidzikamisa kushanda kwawo pakudziya kwakaderera.

Wang Yang, lv ang na zhang lina, vanosanganisa mapurofesa veWuhan University, vakabudirira kugadzirira antifreeze ionic conductive cellulose hydrogel, inogona kushandiswa setension, compression uye tembiricha sensor. Kusiyana neyakajairwa hydrogels, yavo antifreeze zvivakwa zvinovatendera kuti vashande nemazvo pazasi-zero tembiricha. Zvakawanikwa zvakaburitswa mujenari ACS Applied Materials & Interfaces.

Kiyi kune antifreeze uye magetsi conductivity ye cellulose hydrogels iri mu benzyl trimethyl ammonium hydroxide, mhinduro ine aqueous ye organic base inova imwe yeatsva cellulosic solvent masisitimu akagadzirwa nechikwata, chidzidzo chakadaro. Mushure memakemikari crosslinking ye cellulose solution, iyo organic base se solvent haina kushambidzwa sezviri mumagariro ekugadzirira, asi inochengetwa yakananga. Zvimiro zvayo se electrolyte zvinopa cellulose hydrogel iyo antifreeze uye conductive zvivakwa zvakazara.

Kuita kwechinyakare cellulose hydrogels uye antifreeze cellulose hydrogels pane yakaderera tembiricha

Vatsvagiri mu - 24 ℃ yakadzika tembiricha inoomesa kuramba conductive hydrogel yakamisikidzwa mumajoini emunwe, ingave neiyo imwechete margin chigunwe kuchinjika uye nekukurumidza kana kunonoka pane akasiyana siyana kutambanudza, kushomeka kweiyo conductive mvura gel kukosha kwehukama kunogona kushanduka nekufamba kwemunwe kunoratidza amplitude yekuchinja kunoenderana, uye ruzha rusingaonekwe kana hysteresis, deformation isingaperi yemvura inotambanudzwa. yakagadzika michina zvivakwa mune yakaderera tembiricha tensile - kuramba uye inonzwisisika mhinduro kuita.

Antifreeze hydrogels inoshandiswa se sensor yakatambanudza kutevedzera kukotama kwemunwe pakudziya kwakaderera

Kwete izvozvo chete, vatsvakurudzi vachaitawo dielectric elastomers mune conductive hydrogels inogona kuitwa pakati pe "double response" sensor, ine simba uye kudzvinyirira kupikisa - kuhwina min uye kaviri sensor performance, zvimwe zviedzo zvakaratidza kuti mhinduro mbiri idzi hadzipindirani, dzakaratidza kuti sensor yakavakirwa pa antifreeze conductive hydrogel ine yakagadzikana mechanical uye inopisa inodziya uye yakaderera hunhu, inovimbika uye inovimbika hunhu hwekuita uye inovimbika. tembiricha uchishandisa tembiricha inogona kushandiswa munzvimbo yakaoma yemidziyo yakapfava yeuchenjeri hwekugadzira.

Mechanical uye thermal senitivity test ye antifreeze conductive hydrogel sensor

Thesis musoro: Transparent, Antifreezing, Ionic Conductive Cellulose Hydrogel ine Stable Sensitivity pa Subzero Temperature 

Thesis inobatanidzwa: http://pubs.acs.org/doi/abs/10.1021/acsami.9b15849