Ukuprinta nge-3D yiteknoloji entle neguquguqukayo enemisebenzi emininzi. Nangona kunjalo, ukuza kuthi ga ngoku, ibilinganiselwe kwinto enye kuphela - ubungakanani beprinta ye-3D.
Oku kusenokutshintsha kungekudala. Iqela le-UC San Diego lenze i-foam enokwanda ukuya kuthi ga kumaxesha angama-40 ubukhulu bayo bokuqala.
"Kwimveliso yanamhlanje, umqobo owamkelwa ngokubanzi kukuba iindawo ezenziwe kusetyenziswa iinkqubo zokongeza okanye zokukhupha (ezifana neelathe, ii-mills, okanye iiprinta ze-3D) kufuneka zibe ncinci kunezo matshini ngokwazo ezizivelisayo. kufuneka zibe ncinci kunezo matshini ngokwazo ezizivelisayo. Ezi zixhobo zenziwe ngomatshini, zibotshelelwe, zitshixelwe okanye zincamathiselwe ukuze zenze izakhiwo ezinkulu."
“Siye sayila i-resin ye-prepolymer ene-foam yokwenza izongezo ze-lithographic enokwandiswa emva kokuprinta ukuze ivelise iindawo ezifikelela kuma-40 kumthamo wokuqala. Izakhiwo ezininzi ezizivelisayo.”
Okokuqala, iqela likhethe i-monomer eya kuba sisakhiwo se-polymer resin: i-2-hydroxyethyl methacrylate. Emva koko kwafuneka bafumane uxinaniso olufanelekileyo lwe-photoinitiator kunye ne-agent yokuvuthela efanelekileyo yokuyidibanisa ne-2-hydroxyethyl methacrylate. Emva kwezilingo ezininzi, iqela lagqiba ekubeni lisebenzise i-agent yokuvuthela engeyoyesiqhelo esetyenziswa rhoqo kwii-polymers ezisekelwe kwi-polystyrene.
Emva kokuba ekugqibeleni befumene i-resin yokugqibela ye-photopolymer, iqela le-3D liprinte uyilo olulula lwe-CAD laza lazifudumeza ukuya kuthi ga kwi-200°C kangangemizuzu elishumi. Iziphumo zokugqibela zibonise ukuba isakhiwo sanda nge-4000%.
Abaphandi bakholelwa ukuba obu buchwephesha ngoku bungasetyenziswa kwizicelo ezilula ezifana nee-airfoils okanye izixhobo zokufunxa, kunye nezicelo ze-aerospace, amandla, ulwakhiwo kunye ne-biomedical. Olu phononongo lupapashwe kwi-ACS Applied Materials & Interface.
Ixesha lokuthumela: Epreli-19-2023