Comparative study of the morphology and properties of PP/LLDPE/wood powder and MAPP/LLDPE/wood powder polymer blend composites

Abstract

Abstract. In this study, polypropylene (PP)/linear low-density polyethylene (LLDPE) and maleic anhydride grafted polypropylene (MAPP)/LLDPE blend systems were comparatively investigated. The blends and composites contained equal amounts of the two polymers, and the compatibility and miscibility between the two polymers were investigated. Composites with 10, 20 and 30 wt% wood powder (WP), but still with equal amounts of the two polymers, were prepared and investigated. The morphologies, as well as mechanical and thermal properties, of the blends and the blend composites were investigated. The MAPP/LLDPE blend and composites showed better properties than the PP/LLDPE blend and composites as a result of the stronger interfacial interaction between MAPP, LLDPE and WP. The SEM and DSC results of the PP/LLDPE/WP blend composites showed that WP located itself more in the LLDPE phase. In the MAPP/LLDPE/WP composites the WP was in contact with both polymers, although it had a greater affinity for MAPP. The TGA results show that the MAPP/LLDPE blend and composites are more thermally stable than the PP/LLDPE blend and composites.

Effects of Kenaf Loading on Processability and Properties of Linear Low-Density Polyethylene/Poly (Vinyl Alcohol)/Kenaf Composites

“…Examples of such include polypropylene (PP)/linear low-density polyethylene (LLDPE) filled with wood powder and low density polyethylene (LDPE)/thermoplastic sago starch (TPSS) reinforced with kenaf fiber (Dikobe and Luyt 2010;Majid et al 2010). Polyolefins, especially polyethylene (PE), have been widely used in daily life for short term applications such as plastic bags, packaging films, healthcare products, and automobile parts (Noranizan and Ahmad 2012).…”

“…Polyolefins, especially polyethylene (PE), have been widely used in daily life for short term applications such as plastic bags, packaging films, healthcare products, and automobile parts (Noranizan and Ahmad 2012). Linear low-density polyethylene (LLDPE), one class of polymer under PE, is widely used in packaging applications; however, its resistance to biodegradation causes environmental pollution (Sam et al 2009;Dikobe and Luyt 2010;Nordin et al 2012). Poly(vinyl alcohol) (PVOH) is a water-soluble biodegradable polymer that is extensively used in packaging applications Rahmah et al 2013).…”

The Effects of Coupling Agents on the Mechanical and Thermal Properties of Eucalyptus Flour/HDPE Composite

“…Furthermore, the specific properties of this natural product such as low cost, light weight, renewable character, high specific strength and high modulus, reactive surface and the possibility to generate energy, without residue after burning at the end of their life-cycle, motivate their association with organic polymers to elaborate composite materials [1][2][3][4]. For the above reason, much work has been done in studying and developing general thermoplastic/natural fibers composites, especially wood plastic composites (WPCs).…”

Electrical Properties of Polyethylene/Polypropylene Compounds for High-Voltage Insulation

“…The mixed specimens were marked as HP1, HP2, HP3, and LP1, LP2, LP3 for HDPE/PP and LDPE/PP, respectively. The selection on the mixing ratio of HDPE/PP and LDPE/PP blends was based on past works [2,4,8,[15][16][17][18]. The materials were mixed mechanically using a twin screw extruder, with a 150 rpm screw rotating speed for 5 min.…”