Investigation of interpenetrating polymer networks for self-healing applications

Abstract Self-healing techniques can enhance the durability and reliability of thermosetting polymer systems. This research discusses thermally induced healing of Interpenetrating Polymer Networks (IPNs) with varying percentages of linear polymer. An in situ sequential IPN system was developed using diglycidyl ether of bisphenol A (DGEBA) cured with 4,4′-methylene biscyclohexanamine as the cross-linked phase and poly(methacrylated phenyl glycidyl ether) (pMPGE) as the linear polymer phase. It was hypothesized that upon healing, diffusion of linear polymer to the crack interface could aid in crack healing. The polymer network without linear polymer had a healing efficiency of 52% after the first healing cycle, dropping to 25% after the fourth healing cycle. IPNs with varying amounts of pMPGE had healing efficiencies ranging from 40% to 52% after the first healing cycle. Healing efficiencies dropped to 27–39% after the fourth healing cycle. The incorporation of linear polymer allowed for greater retention of healing efficiency over consecutive healing cycles.

[1]  Ajit K. Mal,et al.  New Thermally Remendable Highly Cross-Linked Polymeric Materials , 2003 .

[2]  P. Mather,et al.  A thermoplastic/thermoset blend exhibiting thermal mending and reversible adhesion. , 2009, ACS applied materials & interfaces.

[3]  R. Wool.  Self-healing materials: a review. , 2008, Soft matter.

[4]  Simon A. Hayes,et al.  A self-healing thermosetting composite material , 2007 .

[5]  J. G. Williams,et al.  Fracture mechanics studies of crack healing and welding of polymers , 1981 .

[6]  Richard P. Wool,et al.  A theory of healing at a polymer-polymer interface , 1983 .

[7]  G. Palmese,et al.  Nanoporous thermosetting polymers. , 2005, Langmuir : the ACS journal of surfaces and colloids.

[8]  I. Bond,et al.  A hollow fibre reinforced polymer composite encompassing self-healing and enhanced damage visibility , 2005 .

[9]  Mays,et al.  Dynamics of Polymer Interdiffusion: The Ripple Experiment. , 1998, Macromolecules.

[10]  G. Palmese,et al.  Viscoelastic properties of alkoxy silane-epoxy interpenetrating networks , 2006 .

[11]  P. Cordier,et al.  Self-healing and thermoreversible rubber from supramolecular assembly , 2008, Nature.

[12]  S. Nutt,et al.  A Thermally Re-mendable Cross-Linked Polymeric Material , 2002, Science.

[13]  H. Kausch,et al.  Load transfer through chain molecules after interpenetration at interfaces , 1979 .

[14]  P. Flory,et al.  Second‐Order Transition Temperatures and Related Properties of Polystyrene. I. Influence of Molecular Weight , 1950 .

[15]  G. Palmese,et al.  Effect of epoxy–amine stoichiometry on cured resin material properties , 1992 .

[16]  Amy M. Peterson,et al.  Thermoreversible and remendable glass–polymer interface for fiber-reinforced composites , 2011 .

[17]  G. Palmese,et al.  Crack‐healing behavior of epoxy–amine thermosets , 2009 .

[18]  G. Palmese,et al.  An investigation of vinyl-ester : Styrene bulk copolymerization cure kinetics using Fourier transform infrared spectroscopy , 2000 .

[19]  F. Brochard,et al.  Polymer-Polymer Interdiffusion , 1986 .

[20]  S. Hayes,et al.  Self-healing of damage in fibre-reinforced polymer-matrix composites , 2007, Journal of The Royal Society Interface.

[21]  Ian P Bond,et al.  Interactions between propagating cracks and bioinspired self-healing vascules embedded in glass fibre reinforced composites , 2011 .

[22]  Jeffrey S. Moore,et al.  Self-Healing Polymers and Composites , 2010 .

[23]  J. M. Sands,et al.  The synthesis of 9–10 Dibromo stearic acid glycidyl methacrylate and its use in vinyl ester resins , 2007 .

[24]  P. G. de Gennes,et al.  Kinetics of diffusion‐controlled processes in dense polymer systems. II. Effects of entanglements , 1982 .

[25]  J. Lewis,et al.  Self-healing materials with microvascular networks. , 2007, Nature materials.

[26]  H. Thomas Hahn,et al.  Multiple healing effect of thermally activated self-healing composites based on Diels–Alder reaction , 2010 .

[27]  Sia Nemat-Nasser,et al.  Self-healing structural composites with electromagnetic functionality , 2003, SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.

[28]  R. Wool,et al.  A theory crack healing in polymers , 1981 .

[29]  J. M. Sands,et al.  Army Research Laboratory Aberdeen Proving Ground , MD 21005-5069 ARL-RP-94 May 2005 Fatty Acid-Based Monomers as Styrene Replacements for Liquid Molding Resins , 2005 .

[30]  N. Sottos,et al.  Autonomic healing of polymer composites , 2001, Nature.

[31]  Robert E Jensen,et al.  Reversibly cross-linked polymer gels as healing agents for epoxy-amine thermosets. , 2009, ACS applied materials & interfaces.