Optically transparent pectin/poly(methyl methacrylate) composite with thermal insulation and UV blocking properties based on anisotropic pectin cryogel

Bioderived polysaccharide-based cryogels prepared via freeze-casting method not only mimic the highly aligned anisotropic pore structure of plant stems but also offer other benefits as compared to biological structures, such lower density, higher porosity, better permeability, and thermal conductivity. However, application polysaccharide fabricate multifunctional composites is still at its infancy. In this study, a novel class optically transparent pectin/poly(methyl methacrylate) (PMMA) composite (with optical transmittance high 84% haze 38% ? 73%) combined with insulation outperforming conventional glass has been by using freeze-casted pectin cryogel template. The final pectin/PMMA comparable or contrasted most reported studies on wood/bamboo. Astonishingly, type very good UV blocking ability both nanocellulose-based polymer composites. Overall, properties these can be optimized controlling concentration temperature. Furthermore, reach much conductivity (0.110 0.126 W/(m·K)) than glass. Therefore, could beneficial in many applications, materials, solar cell substrates, protective displays.