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Effects of polyamide 6 reinforcement on the compatibility of high‐density polyethylene/environmental‐friendly modified wood fiber composites
Author(s) -
Xu Kaimeng,
Zheng Zhifeng,
Du Guanben,
Zhang Yulu,
Wang Zhihui,
Zhong Tuhua,
Xie Linkun,
Wang Siqun
Publication year - 2019
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.47984
Subject(s) - high density polyethylene , materials science , composite material , flexural strength , izod impact strength test , absorption of water , ultimate tensile strength , differential scanning calorimetry , polyethylene , scanning electron microscope , heat deflection temperature , flexural modulus , thermal stability , compounding , chemical engineering , physics , engineering , thermodynamics
In order to develop excellent comprehensive mechanical strength and stability in high‐density polyethylene (HDPE)/wood fiber (WF) composites, polyamide 6 (PA 6), and WF modified by environmental‐friendly high temperature vapor (WF‐HTV) were utilized to reinforce the compound system. The properties relating to interfacial compatibility in HDPE/WF‐HTV composites were characterized and evaluated by electron universal mechanical instrument, water absorption testing, thermogravimetry, scanning electron microscope, Fourier transfer infrared spectroscopy, and differential scanning calorimetry. The results reveal that this novel compounding system can engender a synergistic effect for interfacial interactions among PA 6, HDPE, and WF‐HTV only when the ratio of HDPE to PA 6 is at an optimum level (HDPE:PA 6 = 6:4). The maximum values for flexural strength, modulus, tensile strength, and impact strength can be increased by 82.05, 64.08, 93.47, and 120.45%, respectively, compared with those of HDPE/WF‐HTV composites. Additionally, maximum decomposition temperatures for the first and second thermal degradation stages can be increased by 7.17and 8.99 °C, respectively. Water absorption can be effectively controlled at a relatively low level (approximately 1.50%). © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019 , 136 , 47984.