Abstract
An immiscible polyamide 6 (PA6)/polypropylene (PP) blend was compatibilized by electron-beam irradiation in the presence of reactive agent. Glycidyl methacrylate (GMA) was chosen as a reactive agent for interfacial cross-copolymerization between dispersed PP and continuous PA6 phases initiated by electron-beam irradiation. The PA6/PP (80/20) mixture containing GMA was prepared using a twin-screw extruder, and then exposed to an electron-beam at various doses at room temperature to produce compatibilized PA6/PP blends. The morphological, rheological, and mechanical properties of blends produced were investigated. Morphology analysis revealed that the diameter of PP particles dispersed in PA6 matrix was decreased with increased irradiation dose and interfacial adhesion increased due to high surface area of treated PP particles. Complex viscosities (η*) and storage moduli (G’) of blends increased with increasing irradiation dose and were higher than those of PA6 and PP. The complex viscosity of the blend irradiated at 200 kGy was 64 and 8 times higher than PA6 and PP, respectively. The elongation at break of blend irradiated less than 100 kGy was about twice that of PA6. Electron beam treatment improved the compatibility at the interface between PA6 and PP matrix in the presence of GMA.
Highlights
Polyamide 6 (PA6), commercially known as nylon 6, is a crystalline engineering thermoplastic which is tough, strong, and abrasion resistant and has a high melting temperature [1,2,3]
2 of 11 the irradiation compatibilization of a PA6/PP blend by electron-beam-initiated interfacial cross-copolymerization in ambient temperature and immiscible blends have a gap at interface, which might be needed to fill the presence of a reactive agent
In summary we studied the effect of electron-beam exposure in the presence of reactive agent on the compatibility of PA6/PP (80/20) blend, in which interfacial cross-copolymerization was induced
Summary
Polyamide 6 (PA6), commercially known as nylon 6, is a crystalline engineering thermoplastic which is tough, strong, and abrasion resistant and has a high melting temperature [1,2,3]. 2 of 11 the irradiation compatibilization of a PA6/PP blend by electron-beam-initiated interfacial cross-copolymerization in ambient temperature and immiscible blends have a gap at interface, which might be needed to fill the presence of a reactive agent. Monomeric GMA was chosen as a reactive agent for interfacial and the double bond can bebecause opened byreactive a radical species. Due low molecular and mechanical properties of be theeasily obtained blends measured and analyzed to to determine the effects weight, it can be diffused to the interface during melt mixing [16]. The morphological, of this proposed compatibilization strategy. Rheological, and mechanical properties of the obtained blends were measured and analyzed to determine effects of this proposed compatibilization strategy
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