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With a kitchen freezer and plant cellulose, an aerogel for therapeutic use is developed


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VIDEO: By adding a bit of acid to the acetone, it dissolves the calcium carbonate particles in the aerogel and releases CO2 generating the bubbles that make the material more porous. The.
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Credit: Jowan Rostami
A new low-cost and sustainable technique would boost the possibilities for hospitals and clinics to deliver therapeutics with aerogels, a foam-like material now found in such high-tech applications as insulation for spacesuits and breathable plasters.
With the help of an ordinary kitchen freezer, this newest form of aerogel was made from all natural ingredients, including plant cellulose and algae, says Jowan Rostami, a researcher in fibre technology at KTH Royal Institute of Technology in Stockholm. ....

Jowan Rostami , Division Of Solid Mechanics At Lund University , Polymer Technology , Wallenberg Wood Science Centre , Department Of Engineering Mechanics , Royal Institute Of Technology , Department Of Fibre , Materials Today , Engineering Mechanics , Solid Mechanics , Chemistry Physics Materials Sciences , Polymer Chemistry , பாலிமர் தொழில்நுட்பம் , வாலன்பெர்க் மரம் அறிவியல் மையம் , துறை ஆஃப் பொறியியல் இயக்கவியல் , அரச நிறுவனம் ஆஃப் தொழில்நுட்பம் , துறை ஆஃப் ஃபைபர் , பொருட்கள் இன்று , பொறியியல் இயக்கவியல் , திட இயக்கவியல் , வேதியியல் இயற்பியல் பொருட்கள் அறிவியல் ,

Citrus derivative makes transparent wood 100 percent renewable


Citrus derivative makes transparent wood 100 percent renewable
Five years after introducing see-through wood building material, researchers in Sweden have taken it to another level. They found a way to make their composite 100 percent renewable – and more translucent – by infusing wood with a clear bio-plastic made from citrus fruit.
Since it was first introduced in 2016, transparent wood has been developed by researchers at KTH Royal Institute of Technology as one of the most innovative new structural materials for building construction. It lets natural light through and can even store thermal energy.
The latest version of transparent wood developed at KTH is more translucent, and is made with renewable polymer. (Photo: Céline Montanari) ....

Lars Berglund , Wallenberg Wood Science Center , Polymer Technology , Royal Institute Of Technology , Wood Science Center , லார்ஸ் பெர்க்லண்ட் , வாலன்பெர்க் மரம் அறிவியல் மையம் , பாலிமர் தொழில்நுட்பம் , அரச நிறுவனம் ஆஃப் தொழில்நுட்பம் , மரம் அறிவியல் மையம் ,

Citrus Derivatives Can Create 100% Renewable Transparent Wood


(Photo : Wikimedia Commons)
Researchers at KTH s Wallenberg Wood Science Centre used fossil-based polymers in earlier models of the composite. The researchers have now successfully tested an environmentally safe alternative: limonene acrylate, a limonene-derived monomer. They published their findings in the journal Advanced Science.
The current limonene acrylate is made from organic citruses, such as peel waste from the orange juice industry, says Céline Montanari, lead author and Ph.D. student.
The polymer that restores the strength of delignified wood while allowing light to pass through is made from an extract from orange juice processing.
According to the researchers, the modern composite has a 90 percent optical transmittance at 1.2 mm thickness and a 30 percent haze. Unlike other translucent wood composites produced in the last five years, the material manufactured at KTH is intended for structural use. With a power of 174 MPa (25.2 ksi) and an elasticity ....

Sergei Popov , Wikimedia Commons , Lars Berglund , Royal Institute , Polymer Technology , Wallenberg Wood Science Centre , Royal Institute Of Technology , Department Of Fibre , Wood Science Centre , Professor Lars Berglund , செர்ஜி போபவ் , லார்ஸ் பெர்க்லண்ட் , அரச நிறுவனம் , பாலிமர் தொழில்நுட்பம் , வாலன்பெர்க் மரம் அறிவியல் மையம் , அரச நிறுவனம் ஆஃப் தொழில்நுட்பம் , துறை ஆஃப் ஃபைபர் , மரம் அறிவியல் மையம் ,