Surface Modification of Carbon Fibers by Free Radical Graft‐Polymerization of 2‐Hydroxyethyl Methacrylate for High Mechanical Strength Fiber–Matrix Composites

Giebel, Elisabeth; Herrmann, Thomas; Simon, Frank; Fery, Andreas; Buchmeiser, Michael R.

doi:10.1002/mame.201700210

Cited by 11 publications

(4 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The other method is direct grafting by macromolecular polymers. This method can control macromolecular chain length, providing more stability 23,24 . The functionalized material ethylene‐vinyl acetate‐glycidyl methacrylate terpolymer (EVMG) has a carbon–carbon double bond and an epoxy group that can react with carboxyl and amino groups 25 .…”

Section: Introductionmentioning

confidence: 99%

“…This method can control macromolecular chain length, providing more stability. 23,24 The functionalized material ethylene-vinyl acetate-glycidyl methacrylate terpolymer (EVMG) has a carbon-carbon double bond and an epoxy group that can react with carboxyl and amino groups. 25 The carbon-carbon double bond in EVMG can react with sulfur in rubber, which not only improves compatibility with rubber but also facilitates the formation of a three-dimensional cross-linked network with the rubber matrix.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effectof epoxy functionalized elastomer modified carbon fiber on mechanical properties and interfacial adhesion of chloroprene rubber (CR)/natural rubber (NR) composites

Zhao

Han

et al. 2023

J of Applied Polymer Sci

View full text Add to dashboard Cite

The carbon fibers were oxidized with concentrated hydrochloric acid, and subsequently modified in two steps. First, the oxidized carbon fibers were grafted with γ‐aminopropyltriethoxysilane (KH550) with the purpose of building a platform on the fiber surface, then the epoxy functionalized elastomer (ethylene‐vinyl acetate‐glycidyl methacrylate terpolymer, EVMG) was grafted on the carbon fiber surface. Chloroprene rubber/natural rubber/carbon fiber (CR/NR/CF) composites were prepared by mechanical blending process. Carbon fibers were characterized by different techniques such as X‐ray photoelectron spectroscopy (XPS), thermal gravimetric analysis (TGA), scanning electron microscopy (SEM), and dynamic mechanical analysis (DMA). The results show that EVMG can enhance the interface adhesion between fiber and rubber. It was observed that the surface of the carbon fiber is covered with a layer of the macromolecular film by EVMG, which increases the surface roughness and introduces epoxy groups. On the one hand, carbon fiber and rubber can be entangled through macromolecular chains, and on the other hand, interfacial bonding can be enhanced by chemical interactions. Furthermore, modification by EVMG impacted tensile strength of CF composite increase by 11.05%, the 300% constant tensile stress increased by 21.87%, and the wear resistance increased by 29.8%, respectively.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effectof epoxy functionalized elastomer modified carbon fiber on mechanical properties and interfacial adhesion of chloroprene rubber (CR)/natural rubber (NR) composites

Zhao

Han

et al. 2023

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…By radiation or chemical reactions, the grafting reaction on the surface of CFs was triggered, and the polymers with functional groups were introduced on the surface of CFs; thus, the interfacial strength of composite materials was improved. Many monomers have been used for grafting reaction, such as hydroxyethyl acrylate, methyl methacrylate, butyl methacrylate, propylene oxide diamine, high-generation amidoamine, aryldiazonium, and polyhedral oligomeric silsesquioxane with tetraethylenepentamine . Plasma, UV radiation, and high-energy radiation , could be used as sources of radiation to initiate grafting reaction, and the polymer layer could be introduced on the CFs.…”

Section: Introductionmentioning

confidence: 99%

Surface Modification of Carbon Fiber by Electro-Polymerization: Continuous Production, Thickness Control, Colorization, and Preparation of CFRP

Gao

et al. 2020

ACS Appl. Polym. Mater.

View full text Add to dashboard Cite

Carbon fibers (CFs) have been widely used as reinforcing materials because of their excellent specific strength, specific modulus, corrosion resistance, energy absorption, and other properties. To improve the mechanical properties of CF-reinforced composites, one of the effective methods is to improve the interfacial force between the CF and the polymer through modification of CFs. The aim of this study is to modify the surface of the CF with an environmentally friendly and efficient way and to design a continuous production equipment. In this research, a continuous electro-polymerization equipment was designed, and the surface of the CFs was modified by epoxy or vinyl ether, which was initiated by photoinitiator UVI-6974 without adding any solvent and extra electrolytes. By changing the structure of monomers, polymerization time, voltage, concentration of the initiator, and the distance between CFs and electrodes, the performance and thickness of the polymer layer on the CFs were controllable. The results of scanning electron microscopy and infrared spectroscopy proved that the surface of the CFs was covered by polymers, and some unreacted functional groups remained. The mechanical performances of CF composites prepared from the BDE/DVE-3-modified CFs showed that the interlaminar shear strength improved by 46.98 and 62.02%, and the tensile strength improved by 11.40 and 16.62%, respectively, compared with unmodified CFs. This proved that the interface force between the resin and the CF was greatly improved by the thin polymer layer on the surface of the CF and the unreacted functional groups. On the other hand, if pigments or dyes were added to the polymerization system, colored CFs could be fabricated by this equipment continuously. Because of the solvent-free, low-voltage, and continuous fabrication, this electro-polymerization method has a good industrial prospect.

show abstract

“…Some advancements have been made in the surface modification to improve the interfacial bonding strength. From one aspect, Thomas et al improved the surface roughness of carbon fibers by introducing the free radical polymerization of hydroxyethyl methacrylate, which had a significant effect on enhancing the bond strength of the interface [11]. Jacopo et al showed that interfacial mechanical riveting strength can be achieved by adding different sizes of quartz sand at the interface [12].…”

Section: Introductionmentioning

confidence: 99%

Study on the Mechanical Properties and Strengthening Mechanism of Interface-Modified Carbon Fiber Mesh Reinforced Cement-Based Composites with SCA&HMC

Luo

et al. 2019

Molecules

View full text Add to dashboard Cite

Carbon fiber mesh reinforced cement-based composites (CMCCs) have received extensive attention in the field of engineering repair and structural reinforcement due to their outstanding properties such as two-way force, rust prevention, high specific strength, and low base surface requirements. However, the development of this material has been slowed down to some extent due to the poor interfacial bonding between the carbon fiber mesh and the cement matrix. In this paper, a novel fabrication strategy was proposed in which the carbon fiber mesh was modified with epoxy resin and silane coupling agent (SCA) to increase its surface chemical activity. Meanwhile, the hydroxymethyl cellulose (HMC) was also filled into the concrete matrix to improve the mechanical strength of the matrix as well as the load transfer behaviors between the mortar and carbon fiber (CF) mesh. The potential to employ SCA and HMC was evaluated for the making of CMCCs via the above methods. The results showed that the longitudinal shear strength of composites with SCA and SCA&HMC increased by 26.6% and 56.1% compared to those of CF with epoxy resin (EP) reinforced composites, respectively. The flexural strength of composite with SCA&HMC increases by 147.6% compared to I-(F) without CF. The novel II-HCM&CF/EP-SCA composites with excellent performance are promised to be applied in practical uses.

show abstract

Surface Modification of Carbon Fibers by Free Radical Graft‐Polymerization of 2‐Hydroxyethyl Methacrylate for High Mechanical Strength Fiber–Matrix Composites

Cited by 11 publications

References 26 publications

Effectof epoxy functionalized elastomer modified carbon fiber on mechanical properties and interfacial adhesion of chloroprene rubber (CR)/natural rubber (NR) composites

Effectof epoxy functionalized elastomer modified carbon fiber on mechanical properties and interfacial adhesion of chloroprene rubber (CR)/natural rubber (NR) composites

Surface Modification of Carbon Fiber by Electro-Polymerization: Continuous Production, Thickness Control, Colorization, and Preparation of CFRP

Study on the Mechanical Properties and Strengthening Mechanism of Interface-Modified Carbon Fiber Mesh Reinforced Cement-Based Composites with SCA&HMC

Contact Info

Product

Resources

About