Impact-induced fracture mechanisms of immiscible PC/ABS (50/50) blends

M. N. Machmud, Masaki Omiya, H. Inoue, K. Kishimoto

Research output: Contribution to journalConference article

Abstract

This paper presents a study on fracture mechanisms of polycarbonate (PC)/acrylonitrile-butadiene-styrene (ABS) (50/50) blends with different ABS types under a drop weight impact test (DWIT) using a circular sheet specimen. Formation of secondary crack indicated by a stress-whitening layer on the mid-plane of scattered specimens and secondary surface of fracture perpendicular to primary fracture surface were captured under scanning electron microscope (SEM). Although the both blends finally failed in brittle modes, SEM observation showed that their secondary fracture mechanisms were completely different. Observation through the thickness of the etched PC/ABS specimen samples using SEM also clearly showed that PC and ABS were immiscible. The immiscibility between PC and ABS was indicated by presence of their layer structures through the thickness of the blends. It was revealed that layer of ABS structure was influenced by size of rubber particle and this latter parameter then affected microstructure and fracture mechanisms of the blends. Impact-induced fracture mechanisms of the blends due to such microstructures are discussed in this paper. It was also pointed out that the secondary cracking was likely caused by interface delamination between PC and ABS layers in the core due to transverse shear stress generated during the impact test.

Original languageEnglish
Article number012078
JournalIOP Conference Series: Materials Science and Engineering
Volume334
Issue number1
DOIs
Publication statusPublished - 2018 Apr 6
Event3rd International Conference on Chemical Engineering Sciences and Applications 2017, ICChESA 2017 - Banda Aceh, Indonesia
Duration: 2017 Sep 202017 Sep 21

Fingerprint

polycarbonate
Acrylonitrile
Styrene
Polycarbonates
Butadiene
Electron microscopes
Scanning
Microstructure
Rubber
1,3-butadiene
Delamination
Shear stress

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

Cite this

Impact-induced fracture mechanisms of immiscible PC/ABS (50/50) blends. / Machmud, M. N.; Omiya, Masaki; Inoue, H.; Kishimoto, K.

In: IOP Conference Series: Materials Science and Engineering, Vol. 334, No. 1, 012078, 06.04.2018.

Research output: Contribution to journalConference article

@article{ed41d82a0fa64147a2e34ec798388484,
title = "Impact-induced fracture mechanisms of immiscible PC/ABS (50/50) blends",
abstract = "This paper presents a study on fracture mechanisms of polycarbonate (PC)/acrylonitrile-butadiene-styrene (ABS) (50/50) blends with different ABS types under a drop weight impact test (DWIT) using a circular sheet specimen. Formation of secondary crack indicated by a stress-whitening layer on the mid-plane of scattered specimens and secondary surface of fracture perpendicular to primary fracture surface were captured under scanning electron microscope (SEM). Although the both blends finally failed in brittle modes, SEM observation showed that their secondary fracture mechanisms were completely different. Observation through the thickness of the etched PC/ABS specimen samples using SEM also clearly showed that PC and ABS were immiscible. The immiscibility between PC and ABS was indicated by presence of their layer structures through the thickness of the blends. It was revealed that layer of ABS structure was influenced by size of rubber particle and this latter parameter then affected microstructure and fracture mechanisms of the blends. Impact-induced fracture mechanisms of the blends due to such microstructures are discussed in this paper. It was also pointed out that the secondary cracking was likely caused by interface delamination between PC and ABS layers in the core due to transverse shear stress generated during the impact test.",
author = "Machmud, {M. N.} and Masaki Omiya and H. Inoue and K. Kishimoto",
year = "2018",
month = "4",
day = "6",
doi = "10.1088/1757-899X/334/1/012078",
language = "English",
volume = "334",
journal = "IOP Conference Series: Materials Science and Engineering",
issn = "1757-8981",
publisher = "IOP Publishing Ltd.",
number = "1",

}

TY - JOUR

T1 - Impact-induced fracture mechanisms of immiscible PC/ABS (50/50) blends

AU - Machmud, M. N.

AU - Omiya, Masaki

AU - Inoue, H.

AU - Kishimoto, K.

PY - 2018/4/6

Y1 - 2018/4/6

N2 - This paper presents a study on fracture mechanisms of polycarbonate (PC)/acrylonitrile-butadiene-styrene (ABS) (50/50) blends with different ABS types under a drop weight impact test (DWIT) using a circular sheet specimen. Formation of secondary crack indicated by a stress-whitening layer on the mid-plane of scattered specimens and secondary surface of fracture perpendicular to primary fracture surface were captured under scanning electron microscope (SEM). Although the both blends finally failed in brittle modes, SEM observation showed that their secondary fracture mechanisms were completely different. Observation through the thickness of the etched PC/ABS specimen samples using SEM also clearly showed that PC and ABS were immiscible. The immiscibility between PC and ABS was indicated by presence of their layer structures through the thickness of the blends. It was revealed that layer of ABS structure was influenced by size of rubber particle and this latter parameter then affected microstructure and fracture mechanisms of the blends. Impact-induced fracture mechanisms of the blends due to such microstructures are discussed in this paper. It was also pointed out that the secondary cracking was likely caused by interface delamination between PC and ABS layers in the core due to transverse shear stress generated during the impact test.

AB - This paper presents a study on fracture mechanisms of polycarbonate (PC)/acrylonitrile-butadiene-styrene (ABS) (50/50) blends with different ABS types under a drop weight impact test (DWIT) using a circular sheet specimen. Formation of secondary crack indicated by a stress-whitening layer on the mid-plane of scattered specimens and secondary surface of fracture perpendicular to primary fracture surface were captured under scanning electron microscope (SEM). Although the both blends finally failed in brittle modes, SEM observation showed that their secondary fracture mechanisms were completely different. Observation through the thickness of the etched PC/ABS specimen samples using SEM also clearly showed that PC and ABS were immiscible. The immiscibility between PC and ABS was indicated by presence of their layer structures through the thickness of the blends. It was revealed that layer of ABS structure was influenced by size of rubber particle and this latter parameter then affected microstructure and fracture mechanisms of the blends. Impact-induced fracture mechanisms of the blends due to such microstructures are discussed in this paper. It was also pointed out that the secondary cracking was likely caused by interface delamination between PC and ABS layers in the core due to transverse shear stress generated during the impact test.

UR - http://www.scopus.com/inward/record.url?scp=85046289752&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85046289752&partnerID=8YFLogxK

U2 - 10.1088/1757-899X/334/1/012078

DO - 10.1088/1757-899X/334/1/012078

M3 - Conference article

VL - 334

JO - IOP Conference Series: Materials Science and Engineering

JF - IOP Conference Series: Materials Science and Engineering

SN - 1757-8981

IS - 1

M1 - 012078

ER -