Using sunflower seed husks waste for sustainable thermal isolating coatings

Abstract

The paper presents experimental results of the research carried out in order to obtain an innovative finishing/protection product for plasterboard surfaces, using sunflower seed husks, waste generated by the edible oils industry. In the form of an addition consisting of one or two-dimensional fractions, sunflower seed hulls have been incorporated into a finishing/protective coating product, the latter acting as a binder. The multilayered application of the resulting products, on gypsum board surfaces, led to a coating having good adhesion to the support as well as good thermal insulation characteristics (between 0.165 W/m.K and 0.095W/m.K), despite the small thicknesses of the coating (between 3.15 mm and 5.10 mm) compared to the traditional products with thermal insulating properties.

Keywords

• vegetable waste
• finishing
• thermal insulation
• multilayered system