Mechanical Properties of a Microcapsule-Containing Epoxy for Self-Healing Applications

2011 ◽  
Vol 239-242 ◽  
pp. 1794-1798 ◽  
Author(s):  
Xing Liu ◽  
Jong Keun Lee
Keyword(s):  
Mechanical Properties ◽  
Polymer Matrix ◽  
Volume Fraction ◽  
Dynamic Mechanical Properties ◽  
Interfacial Interaction ◽  
Self Healing ◽  
Dynamic Mechanical ◽  
Healing Agent

The addition of microencapsulated healing agent or catalyst in a polymer matrix can potentially change its mechanical properties and processing characteristics. The extent of this change depends on the volume fraction of the additives, the level of interfacial interaction, and the inherent properties of the additives. For a self-healing concept to be viable, the healing performance should be achieved without compromising the overall processing and mechanical properties of the polymer matrix. In this study, tensile and dynamic mechanical properties were investigated and discussed for an amine-cured epoxy dispersed with different loadings of microcapsules.

Investigation on the Dynamic Mechanical Properties of Self-Healing Glass Fibre Reinforced Plastics

2017 ◽  
Vol 9 (2) ◽  
Author(s):  
J. Lilly Mercy ◽  
S. Prakash
Keyword(s):  
Mechanical Properties ◽  
Glass Fibre ◽  
Polymeric Materials ◽  
Dynamic Mechanical Properties ◽  
Damping Factor ◽  
Self Healing ◽  
Dynamic Mechanical ◽  
Reinforced Plastics ◽  
Glass Fibre Reinforced ◽  
Glass Fibre Reinforced Plastics

Self-healing polymeric materials developed in the last decade is one of the marvels in the field of material science and polymer chemistry. Self-healing Glass Fibre Reinforced Plastics (GFRP) was fabricated with the microcapsule based self-healing system which can be triggered by the catalyst, when the capsule breaks open releasing the healing agent, during crack formation. The dynamic mechanical properties of the composite were assessed to find its dependence on temperature, stress and frequency and to report the changes in stiffness and damping. The storage modulus, loss modulus and damping factor were investigated for various frequencies and temperature and discussed.

Healing efficiency and dynamic mechanical properties of self-healing epoxy systems

2014 ◽  
Vol 23 (4) ◽  
pp. 045001 ◽  
Author(s):  
Liberata Guadagno ◽  
Marialuigia Raimondo ◽  
Carlo Naddeo ◽  
Pasquale Longo ◽  
Annaluisa Mariconda ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Dynamic Mechanical Properties ◽  
Self Healing ◽  
Dynamic Mechanical ◽  
Healing Efficiency ◽  
Epoxy Systems

scholarly journals Improving the Dynamic Mechanical Properties of XNBR Using ILs/KH550-Functionalized Multilayer Graphene

Materials ◽  
2019 ◽  
Vol 12 (17) ◽  
pp. 2800
Author(s):  
Duoli Chen ◽  
Chaoliang Gan ◽  
Xiaoqiang Fan ◽  
Lin Zhang ◽  
Wen Li ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
High Performance ◽  
Dynamic Mechanical Properties ◽  
Interfacial Interaction ◽  
Multilayer Graphene ◽  
Butadiene Rubber ◽  
Functionalized Graphene ◽  
Dynamic Mechanical ◽  
The Matrix ◽  
Modified Graphene

Graphene has been considered an ideal nanoscale reinforced phase for preparing high-performance composites, but the poor compatibility and weak interfacial interaction with the matrix have limited its application. Here a highly effective and environmentally friendly method for the functionalization of graphene is proposed through an interaction between as-exfoliated graphene and (3-aminopropyl) triethoxysilane (KH550), in which 1-butylsulfonate-3-methylimidazolium bisulfate (BSO3HMIm)(HSO4) ionic-liquids-modified graphene was prepared via an electrochemical exfoliation of graphite in (BSO3HMIm)(HSO4) solution, then (BSO3HMIm)(HSO4)-modified graphene as a precursor was reacted with amine groups of KH550 for obtaining (BSO3HMIm)(HSO4)/KH550-functionalized graphene. The final products as filler into carboxylated acrylonitrile‒butadiene rubber (XNBR) improve the dynamic mechanical properties. The improvement in the dynamic mechanical properties of the nanocomposite mainly depends on high interfacial interaction and graphene’s performance characteristics, as well as a good dispersion between functionalized graphene and the XNBR matrix.

Dynamic Mechanical Properties and Phase Structure of Polyethylene/Montmorillonite Nanocomposites Prepared by In Situ Polymerization

2013 ◽  
Vol 457-458 ◽  
pp. 293-296
Author(s):  
Min Li ◽  
Li Guang Xiao ◽  
Hong Kai Zhao
Keyword(s):  
Mechanical Properties ◽  
Storage Modulus ◽  
Polymer Matrix ◽  
Phase Structure ◽  
In Situ Polymerization ◽  
Conformational Transitions ◽  
Dynamic Mechanical Properties ◽  
Strong Interactions ◽  
Dynamic Mechanical

Polyethylene/montmorillonite (PE/MMT) nanocomposites were prepared by in situ polymerization. The dynamic mechanical properties and phase structure of PE/MMT nanocomposites at different MMT concentrations (from 0.1 to 1.2 wt %) were studied. The storage modulus of PE/MMT nanocomposites is higher than that of the polymer matrix. And the motions of molecular relaxations and conformational transitions both in non-crystalline and crystalline phases are confined by the strong interactions between polymer and MMT. Otherwise, the spherulite size gradually decreases with the increasing content of MMT.

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