Enhancement of mechanical properties of epoxy resin matrix adhesives by high-performance fillers

Xu, Hang; Zhang, Xiaorui; Yu, Yating; Yu, Yang; Yang, Zhou; Zhu, Xingsong; Weng, Ling

doi:10.1007/s10965-023-03755-x

Cited by 6 publications

(2 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Under external forces, plastic deformation occurred between the particles and the matrix, thus increasing the tensile strength of the material. 61,62 However, when the n-CeO 2 content exceeded the optimal level, n-CeO 2 agglomerated, causing greater plastic deformation and brittle fracture of the material, and the according decrease in the tensile strength of the composite material. Furthermore, the tensile strength of the stearic acid-modified n-CeO 2 / EP composite further increased to 91.06 MPa, which was 1.22 times that of the unmodified and 4.65 times that of pure EP.…”

Section: Analysis Of Mechanical Properties Of Composite Materialsmentioning

confidence: 99%

Preparation and physical properties of CeO₂ doped and modified epoxy resin composites

Liang,

Yang,

et al. 2024

Polymer Composites

View full text Add to dashboard Cite

Epoxy resin is a widely used polymer material, while its low mechanical properties and thermal stability limit its use in extreme environments such as high temperature and high pressure. In order to improve the performance of EP, this study assessed the enhancement of mechanical properties and thermal stability of EP by stearic acid‐modified n‐CeO2 and its mechanism. Laser particle size analyzers, transmission electron microscopes, and other instruments were used to characterize n‐CeO2. Universal testing machines, thermogravimetric analyzers, and other instruments were used to test n‐CeO2/EP nanocomposites. The results show that fatty acids effectively coated the surface of n‐CeO2, reducing its central particle size from 0.248 μm to 0.193 μm and improving its dispersion and compatibility. The tensile, flexural, impact strength, maximum decomposition temperature, and glass transition temperature (Tg) increased by 382%, 554%, 698%, 5%, and 10%, respectively with 2 wt% filler content. The scanning electron microscopy (SEM) images showed that the addition of n‐CeO2 induced plastic deformation and crack formation in the EP matrix, which enhanced the toughness of the composite material. This study provided the effective methods and basis for the preparation of high‐performance n‐CeO2/EP nanocomposites.Highlights Nano cerium dioxide was modified to improve its dispersion by using stearic acid. High‐performance nanocomposites were prepared by using modified nanoparticles. The stiffness and toughness of the epoxy resin were enhanced by adding n‐CeO2. Thermal stability and heat resistance of the epoxy resin were improved by doping n‐CeO2. SEM images of the impact section showed that n‐CeO2 can prevent crack propagation.

show abstract

Section: Analysis Of Mechanical Properties Of Composite Materialsmentioning

confidence: 99%

Preparation and physical properties of CeO₂ doped and modified epoxy resin composites

Liang,

Yang,

et al. 2024

Polymer Composites

View full text Add to dashboard Cite

show abstract

“…As one of the most important thermosetting resins, epoxy resins (EPs) have been widely used in the fields of adhesives, coatings, electronic packaging, automobiles, etc., due to their superior mechanical properties, thermostability, processability, and dimensional stability. , However, owing to the extremely high cross-linking structure formed during the curing process, the EPs possess inherent disadvantages of low toughness and high brittleness, which severely limit their widespread applications. , …”

Section: Introductionmentioning

confidence: 99%

High-Impact Epoxy Resins with Superior Hydrophobicity Toughened by Epoxy Functionalized Poly(olefin-alt-maleimide) Derivatives

Shen,

Chen,

Lin

et al. 2024

ACS Appl. Polym. Mater.

View full text Add to dashboard Cite

The inherent disadvantages of low toughness and high brittleness severely limit the widespread applications of epoxy resins (EPs), and it is highly desirable to toughen EPs while maintaining their rigidity and thermal properties. Herein, a type of epoxy functionalized poly[1-hexene-alt-N-(2-methoxymethyl oxirane)maleimide] (PHMIEP) was specially designed and synthesized by the self-stabilized precipitation polymerization (2SP) of 1-hexene and maleic anhydride, followed by imidization, hydroxymethylation, and epoxidation. Due to the presence of both rigid cyclic maleimide units and flexible pendant butyl groups, epoxy functionalized PHMIEP can serve as an effective toughening modifier for EPs. With 4,4-diaminodiphenylmethane as the curing agent, the EPs with 5 phr PHMIEP showed a record-high impact strength and tensile strength of 54.04 kJ/m 2 and 95.84 MPa, which were 121 and 23% higher than the neat EPs, respectively. Moreover, the PHMIEP-modified EPs exhibited similar thermal stability and glass-transition temperature to those of the neat EPs. More impressively, the resultant EPs showed superior hydrophobicity in comparison to the unmodified EPs due to the incorporation of hydrophobic imide and alkyl segments. Furthermore, in order to reduce the preparation cost, complex olefinic mixtures derived from the cracking product of raffinate oil were used directly to replace 1-hexene. The EPs modified with poly[cracked raffinate oilalt-N-(2-methoxymethyl oxirane)maleimide] (PRMIEP) also showed excellent comprehensive properties. Due to the highly enhanced toughness, higher strength, and comparable thermal stability, the PHMIEP/PRMIEP-toughened EPs demonstrate great potential as a high-performance resin matrix for application in the fields of electronic packaging, coating, and engineering plastics.

show abstract

Thin, Uniform, and Highly Packed Multifunctional Structural Carbon Fiber Composite Battery Lamina Informed by Solid Polymer Electrolyte Cure Kinetics

Raja,

Lim,

Jeon

et al. 2024

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Multifunctional structural batteries promise advancements in structural energy storage technologies by seamlessly integrating load-bearing and energy-storage functions within a single material, reducing weight, and enhancing safety. Yet, commercialization faces challenges in materials processing, assembly, and design optimization. Here, we report a systematic approach to develop a carbon fiber (CF)-based structural battery impregnated with epoxy-based solid polymer electrolyte (SPE) via robust vacuum-assisted compression molding (VACM). Informed by cure kinetics, SPE processing enhances the multifunctional performance with no fillers or additives. The thin flexible CF-based laminae impregnated under high pressure achieved a substantial enhancement of ∼160% in the fiber volume fraction (FVF) as although thin and strip-shaped, the fibers were optimally packed with low void. A CF/SPE-based battery was fabricated, with a hybrid layered ionic liquid (IL)/ carbonate electrolyte (CE) showing enhanced safety and multifunctional performance. Enhanced by thin, uniform, and stiff CF-based composites, this study propels the development of advanced multifunctional structures, thereby expediting sustainable commercialization.

show abstract

Enhancement of mechanical properties of epoxy resin matrix adhesives by high-performance fillers

Cited by 6 publications

References 38 publications

Preparation and physical properties of CeO₂ doped and modified epoxy resin composites

Preparation and physical properties of CeO₂ doped and modified epoxy resin composites

High-Impact Epoxy Resins with Superior Hydrophobicity Toughened by Epoxy Functionalized Poly(olefin-alt-maleimide) Derivatives

Thin, Uniform, and Highly Packed Multifunctional Structural Carbon Fiber Composite Battery Lamina Informed by Solid Polymer Electrolyte Cure Kinetics

Contact Info

Product

Resources

About

Enhancement of mechanical properties of epoxy resin matrix adhesives by high-performance fillers

Cited by 6 publications

References 38 publications

Preparation and physical properties of CeO2 doped and modified epoxy resin composites

Preparation and physical properties of CeO2 doped and modified epoxy resin composites

High-Impact Epoxy Resins with Superior Hydrophobicity Toughened by Epoxy Functionalized Poly(olefin-alt-maleimide) Derivatives

Thin, Uniform, and Highly Packed Multifunctional Structural Carbon Fiber Composite Battery Lamina Informed by Solid Polymer Electrolyte Cure Kinetics

Contact Info

Product

Resources

About

Preparation and physical properties of CeO₂ doped and modified epoxy resin composites

Preparation and physical properties of CeO₂ doped and modified epoxy resin composites