Effect of compatibilizer on morphology and properties of HDPE/Nylon 6 blends. Issue 5 (11th January 2019)

• Record Type: Journal Article
• Authors: Feng, Jingxing; Zhang, Guojun; MacInnis, Kari; Li, Zhenpeng; Olah, Andrew; Baer, Eric
• Is Part Of: Journal of polymer science. Volume 57:Issue 5(2019)
• Page Start: 281
• Page End: 290
• Publication Date: 2019-01-11
• Subjects: barrier -- blend morphology -- compatibilizer -- gas permeability -- HDPE/Nylon 6 blend; 547
• DOI: 10.1002/polb.24783
• Languages: English
• ISSNs: 0887-6266

Abstract

ABSTRACT: The compatibilization effect of linear low‐density polyethylene‐grafted maleic anhydride (LLDPEgMA) and high‐density polyethylene‐grafted maleic anhydride (HDPEgMA) on high‐density polyethylene (HDPE)/polyamide 6 (Nylon 6) blend system is investigated. The morphology of 45 wt %/55 wt % polyethylene/Nylon 6 blends with three compatibilizer compositions (5 wt %, 10 wt %, and 15 wt %) are characterized by atomic force microscopic (AFM) phase imaging. The blend with 5 wt % LLDPEgMA demonstrates a Nylon 6 continuous, HDPE dispersed morphology. Increased amount of LLDPEgMA leads to sharp transition in morphology to HDPE continuous, Nylon 6 dispersed morphology. Whereas, increasing HDPEgMA concentration in the same blends results in gradual morphology transition from Nylon 6 continuous to co‐continuous morphology. The mechanical properties, oxygen permeability, and water vapor permeability are measured on the blends which confirm the morphology and indicate that HDPEgMA is a better compatibilizer than LLDPEgMA for the HDPE/Nylon 6 blend system. © 2019 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys.2019, 57, 281–290 Abstract : The morphology of high‐density polyethylene and polyamide 6 (Nylon 6) blend is highly dependent on the type and the composition of the compatibilizers. Morphology inversion takes place with an increasing amount of compatibilizers. Correlations among blend morphology, thermal properties, mechanical properties, and gas permeability are rationalized.