Self‐Healing Behavior of Blends Based on Ionomers with Ethylene/Vinyl Alcohol Copolymer or Epoxidized Natural Rubber

Rhaman, Md. Arifur; Penco, Maurizio; Spagnoli, Gloria; Grande, Antonio Mattia; Landro, Luca Angelo Di

doi:10.1002/mame.201100056

Cited by 37 publications

(35 citation statements)

References 17 publications

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“…In contrast, the ENR blends in all investigated compositions show complete self-healing behavior. The authors assigned this finding to the same or improved crystallinity of the ionomer phase [171,172]. It was further demonstrated that EMAA ionomers neutralized with zinc ions (10%) and afterwards mixed with ENR did not show any self-healing property as a result of several crosslinks between the epoxy group of ENR and the EMAA ionomer, which reduced the molecular mobility [173].…”

Section: Self-healing Under Ballistic Impactmentioning

confidence: 90%

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Intrinsic Self-Healing Polymers Based on Supramolecular Interactions: State of the Art and Future Directions

Enke

Döhler

Bode

et al. 2015

Self-Healing Materials

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Supramolecular polymers are an intriguing class of materials with dynamic behavior as a result of the presence of non-covalent bonds. These bonds include hydrogen bonds, metallopolymers, ionomers, host-guest as well as π-π interactions. The strength of these supramolecular bonds can be tuned by varying the binding motifs. Their reversible and dynamic character can be utilized to engineer self-healing polymers. This review briefly presents the preconditions for design of self-healing polymers and summarizes the development of supramolecular self-healing polymers based on various non-covalent interactions. Furthermore, challenges and perspectives for the understanding of self-healing mechanisms and the preparation of novel materials with enhanced properties are discussed.

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Section: Self-healing Under Ballistic Impactmentioning

confidence: 90%

“…Di Landro and coworkers analyzed the self-healing behavior of ionomers blended with semicrystalline poly(vinyl alcohol-co-ethylene) (EVA) or epoxidized natural rubber (ENR) (15-50 wt%) [171]. In general, the addition of EVA increases the stiffness whereas ENR reduces it.…”

Section: Self-healing Under Ballistic Impactmentioning

confidence: 99%

Intrinsic Self-Healing Polymers Based on Supramolecular Interactions: State of the Art and Future Directions

Enke

Döhler

Bode

et al. 2015

Self-Healing Materials

View full text Add to dashboard Cite

show abstract

“…Thermoplastic materials, such as ionomers based on ethylene-co-methacrylic acid copolymers, partially neutralized with sodium or zinc, have shown self-healing behaviour after ballistic impacts [9][10][11][12][13][14]. Blends of ionomers with different polymers were also investigated: blending allows to get mechanical properties tuned over a wide range, yet maintaining self-mending ability [15][16][17]. However, certain conditions in terms of proper temperature range, bullet speed and shape are necessary for the autonomic healing to occur.…”

Section: Introductionmentioning

confidence: 99%

Integrated solutions for safe fuel tanks

Janszen¹,

Grande²,

Bettini³

et al. 2014

Int. J. SAFE

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The integration of different tools for the prevention of fi res or explosions due to impact or bullet damage may signifi cantly improve the safety of fuel tanks. Self-healing polymers have demonstrated their ability to autonomous mending bullet punctures. The results of ballistic tests to check the response of multilayer structures based on self-healing ionomer and aramid fabric or carbon foam are presented in view of their potential employment as safety materials for dangerous liquids containment. Considerations related to the effect of coupling of different materials over self-healing response are discussed. A conceptual solution that integrates self-healing polymers or composites with cellular fi ller made of wrinkled aluminium foil for fuel tanks is proposed and discussed.

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“…Thermoplastic materials, such as ionomers based on ethylene-co-methacrylic acid copolymers, partially neutralized with sodium or zinc, have shown self-healing behaviour after ballistic impacts [3][4][5][6][7][8][9]. Blends of ionomer with different polymers, yet with selfmending ability, were also investigated [10][11][12][13][14]. However, certain conditions in terms of proper temperature range, bullet speed and shape are necessary for the autonomic healing to occur.…”

Section: Introductionmentioning

confidence: 99%

Improved solutions for dangerous liquid containment

Janszen

Grande

Bettini

et al. 2013

Safety and Security Engineering V

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The availability of new materials with uncommon characteristics and functionalities gives the opportunity to develop and possibly integrate new conceptual solutions for the improvement of safety in the design and manufacture of containers for critical substances. Numerous examples can be devised where a proper containment of liquid, even after tank damage, is essential with regard to safety issues. Bullet penetration or debris impact of fuel tanks are two relevant examples where specifically designed configuration and materials may significantly improve safety margins. In such situations, deflagration can be activated by sudden variation of internal pressure and temperature or liquid spilling due to wall container perforation.Cellular filler material in the container can remarkably dispel fire heat and limit pressure wave peaks generated by a bullet explosion; moreover, the overall response to impact loads in case of a crash is remarkably improved. Different fillers with particular configurations, ranging from porous structure to expanded aluminium foil, have been tested as tank explosion suppression media with remarkably positive results.In traditional multilayer wall fuel tanks, self-sealing capability can be obtained as a result of swelling or chemical reaction of rubber/foam layer when it comes in contact with the spilling internal liquid. A usual drawback of these materials is the limited resistance to aging which reduces their effectiveness with time. Moreover, the sealing material does not give structural contribution furthermore consistently increasing the weight of the component. Polymeric materials with intrinsic self-healing capability may become a valid alternative to traditional configurations. In this context, ethylene-methacrylic acid based ionomers can be adopted as self-healing layers. The coupling of such self-

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Self‐Healing Behavior of Blends Based on Ionomers with Ethylene/Vinyl Alcohol Copolymer or Epoxidized Natural Rubber

Cited by 37 publications

References 17 publications

Intrinsic Self-Healing Polymers Based on Supramolecular Interactions: State of the Art and Future Directions

Intrinsic Self-Healing Polymers Based on Supramolecular Interactions: State of the Art and Future Directions

Integrated solutions for safe fuel tanks

Improved solutions for dangerous liquid containment

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