Mechanical and thermal properties of LENR modified epoxy composite / Mohammed Abdullahi Abu Bakar, Wahyu Kuntjoro and S Ahmad

Abu Bakar, Mohammed Abdullahi and Kuntjoro, Wahyu and Ahmad, S. (2011) Mechanical and thermal properties of LENR modified epoxy composite / Mohammed Abdullahi Abu Bakar, Wahyu Kuntjoro and S Ahmad. Journal of Mechanical Engineering (JMechE), 8 (1). pp. 77-89. ISSN 1823-5514 ; 2550-164X

Abstract

Epoxy resins are considered as one of the most important classes of thermosetting
polymers for many industrial applications and become an important matrix in
polymer composites. However polymerization of this resin resulted in brittleness
due to high crosslinking level. Due to this matter, many efforts have been made to
improve the toughness of cured epoxy resins by the introduction of rigid particles,
reactive rubbers, interpenetrating polymer networks and thermoplastics within
the matrix. Incorporation of small amount of rubber is one of the approaches to
improve fracture toughness of the epoxy matrix. In this work, theflexural and
impact properties of liquid epoxidized natural rubber (LENR) modified epoxy
composites have been studied. Addition of LENR increased the impact strength
of the epoxy resin. The impact strength increased from to 18.357 kl/m2
, when
modified with 5.5 phr LENR. The SEM analysis shows uniform dispersion of
rubber particles within the epoxy matrix with average particle size less than
1 um.

Metadata

Item Type: Article
Creators:
Creators
Email / ID Num.
Abu Bakar, Mohammed Abdullahi
UNSPECIFIED
Kuntjoro, Wahyu
UNSPECIFIED
Ahmad, S.
UNSPECIFIED
Subjects: T Technology > TP Chemical technology > Polymers and polymer manufacture > Plastics > Epoxy resins
Divisions: Universiti Teknologi MARA, Shah Alam > Faculty of Mechanical Engineering
Journal or Publication Title: Journal of Mechanical Engineering (JMechE)
UiTM Journal Collections: UiTM Journal > Journal of Mechanical Engineering (JMechE)
ISSN: 1823-5514 ; 2550-164X
Volume: 8
Number: 1
Page Range: pp. 77-89
Keywords: Epoxy resin, modified epoxy, liquid epoxidized natural rubber (LENR), impact strength, toughened epoxy
Date: 2011
URI: https://ir.uitm.edu.my/id/eprint/13716
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13716

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