Characterization of Superfine Wool Powder/Poly(propylene) Blend Film

Abstract

Superfine wool powder was blended and extruded with poly(propylene) (PP) to produce blend pellets, and the extruded pellets were hot‐pressed into a blend film. SEM photographs show that the powder could be uniformly incorporated with PP after extrusion. FT‐IR spectra shows that no substantial changes occurred in the chemical structure of both PP and wool powder in the blend film. X‐Ray diffraction analysis indicates that crystallinity of the blend film was much higher than that of the wool powder and little lower than that of PP. TG‐tested results indicate that the thermal stability of the blend film declined with an increase in the powder content. Endothermic peaks of the wool powder in the blend film become more obvious as the powder content increases. Mechanical properties decline greatly with an increase in the wool powder content in the blend film.magnified image

Natural fibers

“…Improvement of thermal stability of polymeric composites by adding wool was clearly identified in TGA results [120][121][122]. Improvement of thermal stability of polymeric composites by adding wool was clearly identified in TGA results [120][121][122].…”

Wool micro powder as a metal ion exchanger for the removal of copper and zinc

“…Since the protein powder could keep the original properties of the material without destroying the microstructure, it has been widely applied in modern industries due to its unique characteristics [19,20]. Many researchers have tried to produce wool powder by different methods, such as regeneration from keratin solution, mechanical attrition, and chemicalmechanical techniques [21][22][23][24].…”

Dyeing and Characterization of Cellulose Powder Developed from Waste Cotton

“…For instance, Xu et al [9] crushed wool fibers with diameters of 25 µm into a fine powder with a particle size of around 2 µm after treating them with a 0.5% NaClO solution. Huang et al [10] and Xu et al [11] blended down powder and wool powder with polypropylene to produce pellets and then hot-pressed them into films, respectively. Superfine down powder has been coated on polypropylene to produce dyeable fibers [12].…”