Effect of compatibilizer on the structure and property of polycarbonate/polypropylene alloys

Abstract

Polycarbonate/Polypropylene (PC/PP) alloy is a typical thermodynamically incompatible system. In this work, ethylene‐methyl acrylate copolymer (EMA), methoxamine hydrochloride‐grafted POE (POE‐g‐MAH), ethylene‐butyl acrylate‐glycidyl methacrylate copolymer (EAY), a self‐made compatibilizer (PPM‐g‐GMA) of a mixture of glycidyl methacrylate grafted PP (PP‐g‐GMA) and glycidyl methacrylate‐grafted POE (POE‐g‐GMA) were selected as compatibilizer to prepare PC/PP alloys with the mass ratio of 65:30. Systematical studies of compatibilizer type, content and its effects on microstructure, mechanical properties, dielectric properties, dielectric properties and dynamic rheological properties have been carried out in this PC/PP alloys. The results demonstrated that all the compatibilizers in this article resulted in an effective improvement of the compatibility of PC/PP alloys, and the self‐made compatibilizer of PPM‐g‐GMA exhibited a significant improvement over the other three compatibilizers in notched izod impact strength, tensile strength, and bending strength. In addition, a relative low dielectric constants and dielectric losses under 2.5 GHz electric field could be obtained with the assistance of POE‐g‐MAH and PPM‐g‐GMA, indicating its possible application in dielectric materials.

Constructing stable “bridge” structures with compatibilizer POE‐g‐GMA to improve the compatibility of starch‐based composites

“…on polymers under melt-blending, forming robust and stable covalent bonds. [24] Zhou et al [25] added POEg-GMA to PLA/poly (propylene carbonate) blends, and found that elongation at break and impact strength increased by 26.94% and 95.67%. Pan et al [26] improved the compatibility of poly(ethylene terephthalate)/highdensity polyethylene (PET/HDPE) blends by adding POE-g-GMA, and found that the impact strength increased from 44.8 J/m to 110.8 J/m.…”