Mechanical and Morphological Studies of Poly(propylene)‐Filled Eggshell Composites

Abstract

Poly(propylene) (PP) composites were prepared by using eggshell (ES) as filler and their mechanical properties were compared with those using talc (TA) and calcium carbonate (CC) of different grain sizes (X50). A decrease in impact strength and deformation at break with increase in filler content was observed. The PP composite with ES (X50 = 8.4 µm) was stiffer than those with CC (X50 = 0.7 µm). The hybrid composite PP‐ES‐TA showed a similar stiffness as the PP‐TA composites due to the similar morphology of TA (X50 = 0.5 µm) and ES, when TA was replaced up to 75 wt.‐% by ES. SEM study revealed evidence of improved interfacial bonding between PP and ES in theirs composites.

Development of a biocomposite based on green polyethylene biopolymer and eggshell

“…The improvement of the adhesion is a key factor, poor interfacial region weakens the composite. Toro [6] pointed that when a crack is generated due to an impact it is propagated towards poor interfacial regions, so the composite is broken easily.…”

“…So, the effect of each filler particle over the flexural modulus is superposed, which lead to the flexural modulus increasing evidently. [6] where the ES has been added into a polypropylene matrix. It is observed that the tensile strength for the composites decreases with increasing filler content.…”

“…Several authors like Ghabeer [5], Toro [6,7] and Kang [8] have replaced the mineral calcium carbonate by ES developing bio-compounds. Others like Ramdani [9] and Fombuena [10] have used other natural sources in order to obtain the calcium carbonate.…”

Microstructure–property relationships of organo-montmorillonite/polyurethane nanocomposites: Influence of hard segment content

“…The use of inorganic fillers in polymer industry is known to be widely economical due to their low cost, while introducing efficient advantages of both polymer materials and inorganic compounds (Toro et al, 2007;Zhao et al, 2012). Furthermore, incorporating finely distributed solid particles into semicrystalline polymers such as polyolefins and polyamides can provoke nucleation which is essential in industrial applications to control the polymer structure via crystallization and also to shorten the cycle time of crystallization (Göschel et al, 2007).…”

The Taste of Waste: The Edge of Eggshell Over Calcium Carbonate in Acrylonitrile Butadiene Rubber

“…These goals can be partially fulfilled by using natural and waste fillers in polymeric matrice. Past studies have underlined the use of mineral fillers from bio-based and renewable resources including rice husk ash [6,7], eggshell (ES) powder [8,9], and cuttlebone [10,11] to tackle the cost problem of products, at the same time as far as possible promote their properties (Fig. 1).…”