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Toughening and reinforcement of HDPE/CaCO 3 blends by interfacial modification—interfacial interaction
Author(s) -
Wang Yong,
Lu Jin,
Wang Guiheng
Publication year - 1997
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/(sici)1097-4628(19970516)64:7<1275::aid-app5>3.0.co;2-g
Subject(s) - materials science , high density polyethylene , composite material , polyethylene , ultimate tensile strength , fourier transform infrared spectroscopy , amide , ternary operation , chemical structure , wetting , adhesion , surface modification , polymer chemistry , chemical engineering , chemistry , organic chemistry , computer science , engineering , programming language
To improve the mechanical properties and structure of HDPE/CaCO 3 composites, a type of modifier, consisting mainly of carboxylated polyethylene (CPE), and a type of CaCO 3 grafted with acrylamide (CaCO 3 (SINGLE BOND)A) were used. The carboxyl group content of CPE was from 1 to 10%. The amide group content on the surface of the modified CaCO 3 was from 0.2 to 1.8%. The interfacial structure and interaction of ternary blends of HDPE, CPE, and CaCO 3 (SINGLE BOND)A were studied. The results indicate that the higher the amide group content and the carboxyl group content, the higher the tensile and impact strength. This behavior has been attributed to a series of chemical and physico‐chemical interactions taking place between the two components during the blending process which were confirmed by FTIR and extraction experiments. The improvement of interfacial adhesion by the CPE and CaCO 3 (SINGLE BOND)A was also clearly revealed in the SEM of the fracture surface. © 1997 John Wiley & Sons, Inc. J Appl Polym Sci 64: 1275–1281, 1997