Compatibilizing effects of polypropylene-g-itaconic acid on the polypropylene composites

Abstract

We prepared long carbon fiber (LCF)-reinforced thermoplastic composites using a compatibilizer of itaconic acid grafted polypropylene (PP-g-IA). We confirmed the structure of PP-g-IA and investigated the compatibilizing effects of PPg-IA on LCF/polypropylene composites. The tensile strength, tensile moduli, flexural strength, and flexural moduli of the composites increased with increasing PP-g-IA content in the thermoplastic composites. Using single pull-out analyzing system, we found PP-g-IA improved interfacial strength between the carbon fiber and PP matrix. The thermal properties of the composites were measured by thermogravimetric analysis (TGA). We could observe that LCF enhanced the mechanical properties and thermal decomposition temperature of the polypropylene (PP) composites, compared with neat PP. The fractured surfaces of PP/PP-g-IA/LCF composites showed that PP-g-IA was effective for improving the interfacial adhesion between LCF and PP matrix.

Biopolypropylene-Based Wood Plastic Composites Reinforced with Mango Peel Flour and Compatibilized with an Environmentally Friendly Copolymer from Itaconic Acid

“…These results suggest that PP- g -IA slightly reduced the thermal stability of the base bioPP/MPF composite in the final temperature range, which corroborates the results observed by DSC. A similar behavior was observed by Kim et al in PP/PP- g -IA composites with different contents of PP- g -IA from 1 to 10 wt %. However, this composite shows greater thermal stability than neat bioPP, with the maximum degradation peak located at 398.9 °C.…”

Preparation and properties of PLGA nanofiber membranes reinforced with cellulose nanocrystals

“…To achieve these goals, several synthetic and natural polymers have been successfully electrospun into nanofibrous scaffolds or films to act as base matrices. These polymers include poly(l-lactide) (PLA) [12], poly(ε-caprolactone) (PCL) [13], cellulose acetate (CA) [14], polyvinyl acetate (PVA) [15], poly(ethylene oxide) (PEO) [16], chitosan [17], and collagen [18,19].…”