Intrinsic Self-Healing Epoxies in Polymer Matrix Composites (PMCs) for Aerospace Applications

Paolillo, Stefano; Bose, Ranjita K.; Santana, Marianella Hernández; Grande, Antonio Mattia

doi:10.3390/polym13020201

Cited by 73 publications

(69 citation statements)

References 137 publications

(205 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hence, although the healing efficiency equation has been extensively used for self-healing studies, a need for standardized methods for self-healing measurements still exists. In addition, when results of healing efficiencies obtained through different methods were compared it was found that healing protocols can be highly inaccurate and therefore not recommended [10,11].…”

Section: Property Value Healed Healing Efficiencymentioning

confidence: 99%

Self-Healing Polymers and Composite Materials

Nascimento¹

2022

Fiber-Reinforced Plastics

View full text Add to dashboard Cite

In order to overcome the challenges and limitations related to conventional maintenance and repair methods in structural composites during service, the concept of self-healing for polymeric materials has been developed in the last decades. Inspired by biological systems, ideal self-healing materials must be able to repair damages continuously during the service life of the component, recovering its performance. Several techniques have been proposed in the last years to manufacture self-healing polymers and fiber-reinforced composites to provide healing of microcracks in the composite structure without or with less intervention, extending service life and safety of the components and reducing maintenance time and cost. This book chapter proposes an overview of the most promising self-healing approaches for thermoset and polymer matrix composites developed in recent year.

show abstract

Section: Property Value Healed Healing Efficiencymentioning

confidence: 99%

Self-Healing Polymers and Composite Materials

Nascimento¹

2022

Fiber-Reinforced Plastics

View full text Add to dashboard Cite

show abstract

“…Polymers has been widely used in aerospace, automation, civil engineering, marine engineering and other fields [ 1 , 2 , 3 , 4 , 5 ]. According to the composition and type, it mainly includes the thermosetting resin (such as epoxy) with the three-dimensional network crosslinking structure and thermoplastic resin with the linear molecular structure.…”

Section: Introductionmentioning

confidence: 99%

Effect of the Addition of Thermoplastic Resin and Composite on Mechanical and Thermal Properties of Epoxy Resin

Hailatihan

et al. 2022

Polymers

View full text Add to dashboard Cite

When the thermoplastic composites reach the service limits during the service, the recovery and utilization are the key concerns. Meanwhile, the improvement of strength, toughness and durability of epoxy resin is the effective method to prolong the service life of materials and structures. In the present paper, three kinds of thermoplastic resins (polypropylene-PP, polyamide 6-PA6 and polyether-ether-ketone-PEEK) and composites (carbon fiber-PEEK, glass fiber-PA6 and glass fiber-PP) were adopted as the fillers to reinforce and toughen the epoxy resin (Ts). The mechanical, thermal and microscopic analysis were conducted to reveal the performance improvement mechanism of Ts. It can be found that adding thermoplastic resin and composite fillers at the low mass ratio of 0.5~1.0% brought about the maximum improvement of tensile strength (7~15%), flexural strength (7~15%) and shear strength (20~30%) of Ts resin. The improvement mechanism was because the addition of thermoplastic fillers can prolong the cracking path and delay the failure process through the load bearing of fiber, energy absorption of thermoplastic resin and superior interface bonding. In addition, the thermoplastic composite had better enhancement effect on the mechanical/thermal properties of Ts resin compared to thermoplastic resin. When the mass ratio was increased to 2.0~3.0%, the agglomeration and stress concentration of thermoplastic filler in Ts resin appeared, leading to the decrease of mechanical and thermal properties. The optimal addition ratios of thermoplastic resin were 0.5~1.0% (PEEK), 1.0~2.0% (PA6) and 0.5~1.0% (PP) to obtain the desirable property improvement. In contrast, the optimal mass ratios of three kinds of composite were determined to be 0.5~1.0%. Application prospect analysis indicated adding the thermoplastic resin and composite fillers to Ts resin can promote the recycling and reutilization of thermoplastic composites and improve the performance of Ts resin, which can be used as the resin matrix, interface adhesive and anti-corrosion coating.

show abstract

“…[47][48][49][50] From a commercial perspective, epoxy-based polymers are relevant to the fields of aerospace, transportation, civil engineering, home and office goods, and coatings. [51][52][53][54] They generally possess high T g , strength, and toughness, while maintaining excellent moisture, chemical and corrosion resistance. Furthermore, their final properties can be readily tuned thanks to a wide range of commercially available monomers.…”

Section: Introductionmentioning

confidence: 99%