Fracture behavior of nylon 6/ABS blends compatibilized with an imidized acrylic polymer

被引:54
|
作者
Kudva, RA
Keskkula, H
Paul, DR [1 ]
机构
[1] Univ Texas, Dept Chem Engn, Austin, TX 78712 USA
[2] Univ Texas, Texas Mat Inst, Austin, TX 78712 USA
关键词
nylon; acrylonitrile-butadiene-styrene; imidized acrylic polymer;
D O I
10.1016/S0032-3861(99)00244-X
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The fracture behavior of blends of nylon 6 and acrylonitrile-butadiene-styrene (ABS) compatibilized with an imidized acrylic (IA) polymer was examined by Izod impact testing and single-notch three-point bend (SEN3PB) instrumented Dynatup tests. The effects of the method of fracture surface measurement, ABS content, specimen thickness, compatibilizer content and fracture zone geometry were investigated. Blends containing a fixed (5 wt.% IA) compatibilizer content were tough over a broad range of ABS contents; the optimum toughness occurred near 50 wt.% ABS. A dual-mode of fracture was observed in SEN3PB specimens whose Izod impact samples with the same composition had ductile-brittle transition temperatures near room temperature. In these SEN3PB samples, ductile deformation occurred in samples with shorter ligament lengths, whereas brittle failure prevailed in samples with longer ligament lengths. The critical Ligament length at which the ductile-to-brittle transition occurs was shown to be dependent on the compatibilizer content and specimen thickness. These dual modes of fracture were rationalized in terms of a plane-strain to plane-stress transition. For blends that were super tough and had good low temperature toughness as judged by Izod impact testing, the toughness of SEN3PB specimens was generally insensitive to specimen thickness; these blends were fully ductile over the entire range of ligament lengths. The size of the stress-whitened zone was examined for fractured SEN3PB specimens that were fully ductile over the entire range of ligament lengths. Among specimens of a given composition, the size of the stress-whitened zones was geometrically similar and independent of the size of the original ligament. However, when ductile samples of different composition were compared, the size of the stress-whitened zone was not necessarily proportional to the energy dissipated during plastic deformation. This may be a result of the presence of different modes of energy absorption in the nylon 6 or SAN matrix phase. (C) 1999 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:335 / 349
页数:15
相关论文
共 50 条
  • [31] Reactive compatibilization of nylon 6/ABS blends.
    Wang, RW
    Wang, W
    Shi, ZJ
    Xia, YM
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2004, 228 : U344 - U344
  • [32] DEFORMATION MECHANISMS IN NYLON-6 ABS BLENDS
    MAJUMDAR, B
    KESKKULA, H
    PAUL, DR
    JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 1994, 32 (12) : 2127 - 2133
  • [34] Polymer blends of nylon-12 and ABS: Synthesis and characterization
    Rao, BM
    Rao, PR
    Sreenivasulu, B
    POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING, 1999, 38 (02) : 311 - 318
  • [35] Evolution of morphology in uncompatibilized vs compatibilized nylon 6/SAN blends
    Majumdar, B
    Paul, DR
    Oshinski, AJ
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1996, 212 : 278 - PMSE
  • [36] Mechanical Properties of Compatibilized Nylon 6/Polypropylene Blends; Studies of the Interfacial Behavior Through an Emulsion Model
    Huber, Tim
    Misra, Manjusri
    Mohanty, Amar K.
    JOURNAL OF APPLIED POLYMER SCIENCE, 2014, 131 (18) : 9455 - 9462
  • [37] Impact essential work of fracture toughness of ABS/polyamide-6 blends compatibilized with olefin based copolymers
    Guralp Ozkoc
    Goknur Bayram
    Erdal Bayramli
    Journal of Materials Science, 2008, 43 : 2642 - 2652
  • [38] Effects of mixing procedures on properties of compatibilized polypropylene/nylon 6 blends
    Lee, JD
    Yang, SM
    POLYMER ENGINEERING AND SCIENCE, 1995, 35 (23): : 1821 - 1833
  • [39] Raman mapping study of compatibilized and uncompatibilized polymer blends of Nylon 12 and polyethylene
    Sato, H
    Sasao, S
    Matsukawa, K
    Kita, Y
    Ikeda, T
    Tashiro, H
    Ozaki, Y
    APPLIED SPECTROSCOPY, 2002, 56 (08) : 1038 - 1043
  • [40] Impact essential work of fracture toughness of ABS/polyamide-6 blends compatibilized with olefin based copolymers
    Ozkoc, Guralp
    Bayram, Goknur
    Bayramli, Erdal
    JOURNAL OF MATERIALS SCIENCE, 2008, 43 (08) : 2642 - 2652