scholarly journals Modification of Graphene and Friction and Wear Property of its Epoxy Resin Matrix Composites

2021 ◽  
Vol 9 (4) ◽  
Author(s):  
Weisong Sun ◽  
Sirong Yu ◽  
Menglong Tang ◽  
Xian Wang
Keyword(s):  
Friction Coefficient ◽  
Mass Loss ◽  
Epoxy Resin ◽  
Friction And Wear ◽  
Resin Matrix ◽  
Wear Property ◽  
Resin Composites ◽  
Fatigue Wear ◽  
Epoxy Resin Composites ◽  
Graphene Content

The graphene was modified by silane coupling agent KH560, the epoxy resin was reinforced by the modified graphene (KH-graphene) to produce KH-graphene/epoxy resin composites, and the effect of KH-graphene content and load on the friction and wear property of the composites was studied. The results showed that the KH560 was successfully grafted to the surface of graphene; The KH-graphene decreased the mass loss and friction coefficient of the epoxy resin, and with increasing the KHgraphene content, the mass loss and friction coefficient of KH-graphene/epoxy resin composites both showed a decreasing trend, and when the load was 150N, KH-graphene content was 0.5%, the mass loss and friction coefficient of composites were reduced by 44.9% and 17.4%; With increasing the load, the mass loss and friction coefficient of KH-graphene/epoxy resin composites also showed a decreasing trend; The wear form was mainly fatigue wear under the low load, and KH-graphene could inhibit the generation and expansion of micro-cracks; After the load increased, the wear form was mainly abrasive wear; After the graphene added, the wear scar of the worn surface of composites was relatively reduced.

scholarly journals Influence of Phenolic Resin Surface Treatment Agent on Interfacial Adhesion of Carbon Fibre Reinforced Epoxy Resin Composites

2007 ◽  
Vol 16 (6) ◽  
pp. 096369350701600 ◽  
Author(s):  
Chao Wang ◽  
Jing Wang ◽  
Yongan Niu
Keyword(s):  
Carbon Fibre ◽  
Surface Treatment ◽  
Epoxy Resin ◽  
Photoelectron Spectroscopy ◽  
Interfacial Adhesion ◽  
Phenolic Resin ◽  
Resin Matrix ◽  
Resin Composites ◽  
Treatment Agent ◽  
Epoxy Resin Composites

To enhance the interfacial adhesion between carbon fibre and epoxy resin matrix, phenolic resin surface treatment agent has been carried out. The influence of phenolic resin treatment agent on interfacial adhesion of carbon fibre reinforced epoxy resin composites were investigated by interlaminar shear strength, atomic force microscopy, X-ray photoelectron spectroscopy and scanning electron microscopy. The results indicated that the interfacial adhesion was improved greatly after carbon fibre treated by phenolic resin surface treatment agent.

Comparison on the Tribological Properties of Roller and Guide Tribo-Pair Used in Antenna Deployable Structure

2021 ◽  
Vol 1041 ◽  
pp. 37-44
Author(s):  
Tao Feng ◽  
Tao Li ◽  
Yu Zhang ◽  
Zhuo He ◽  
Lin Wang
Keyword(s):  
High Temperature ◽  
Friction Coefficient ◽  
Carbon Fiber ◽  
Epoxy Resin ◽  
Tribological Properties ◽  
Resin Composites ◽  
Gcr15 Steel ◽  
Deployable Structure ◽  
Epoxy Resin Composites ◽  
Carbon Fiber Epoxy

The tribological properties of roller and guide tribo-pair are important for the design of deployable structure for space-borne perimeter truss antenna. In this study, carbon fiber epoxy resin composites are used as the guide material; while polyimide and GCr15 steel are used as the roller material. Then, friction coefficient of polyimide ball and GCr15 steel ball against carbon fiber epoxy resin composites disk were compared and investigated on the high-temperature, ball-on-disk tribometer under different operating conditions, respectively. The wear morphology of disk was measured by laser scanning confocal microscope. The results show that the friction coefficient of the polyimide ball against carbon fiber epoxy resin composites tribo-pair has better tribological properties. Meanwhile, the friction coefficients of this pair are mainly depend on abrasive wear under low pressure and velocity conditions while the adhesive wear has dominated influence on the friction coefficient for high pressure and velocity conditions. Besides, the tribological properties of carbon fiber epoxy resin composites are mainly affected by ploughing of surface roughness at low temperature, while by surface debonding at high temperature.

Study on Mechanical Properties of Multilayer Graphene/Epoxy Nanocomposites

2020 ◽  
Vol 846 ◽  
pp. 29-34
Author(s):  
Jen Ching Huang ◽  
Tsung Ching Lin
Keyword(s):  
Mechanical Properties ◽  
Epoxy Resin ◽  
Impact Test ◽  
Cooling System ◽  
Resin Composite ◽  
Multilayer Graphene ◽  
Resin Composites ◽  
Epoxy Resin Composites ◽  
Graphene Content ◽  
Coefficient Of Elasticity

In this paper, the implementation and testing of multilayer graphene/epoxy resin nanocomposites are discussed. Firstly, the epoxy resin hardener is mixed with the multilayer graphene, and then mixed with the main agent, then poured into the mold, and the low temperature cooling system is used. The curing time of the epoxy resin is slowed down, and the bubble is removed before the complete hardening by the vacuum defoaming method, and the mechanical properties such as tensile strength and toughness are compared with the pure epoxy resin after being sufficiently hardened. In this paper, we investigated the effect of multilayer graphene content on mechanical properties by using the tensile test and impact test. We discussed the effect of multilayer graphene content on the coefficient of elasticity of the multilayer graphene/epoxy resin composites at different stretching rates. And the toughness of the multilayer graphene/epoxy resin composites was evaluated by impact test. After the experiment, it was found that the stretching rate has a certain degree of influence on the grapheme/epoxy resin composite material. And that the addition of 2% multilayer graphene to epoxy resin had the best effect and could effectively improve the coefficient of elasticity and toughness.

scholarly journals Investigation of Mechanical Properties for Basalt Fiber/Epoxy Resin Composites Modified with La

Coatings ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 666
Author(s):  
Chong Li ◽  
Haoyu Wang ◽  
Xiaolei Zhao ◽  
Yudong Fu ◽  
Xiaodong He ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Epoxy Resin ◽  
Interfacial Adhesion ◽  
Bending Strength ◽  
Basalt Fiber ◽  
Resin Matrix ◽  
Resin Composites ◽  
Basalt Fibers ◽  
The Poor ◽  
Epoxy Resin Composites

As an efficient reinforcing material in resin matric composites, the application of basalt fibers (BFs) in composites is limited by the poor interfacial adhesion between BFs and the resin matrix. In this study, to obtain the basalt fibers/epoxy resin composites with enhanced mechanical properties, the modification solution containing different concentrations of Lanthanum ions (La3+) was synthesized to modify the BFs surfaces to enhance the poor interfacial adhesion between BFs and the matrix. The morphology, the chemical structure and the chemical composition of the modified BFs surface were observed and detected by scanning electron microscopy, Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy, respectively. The results show that, after BFs were soaked in the modification solution, the more active groups (C=O, –OH, C–O, etc.) were introduced to the BFs surfaces and effectively enhanced the bond strength between BFs and the resin matrix. The obtained mechanical performances of prepared basalt fibers/epoxy resin composites showed that the tensile strength, bending strength and interlaminar shear strength (ILSS) were improved with the modified BFs, and reached to 458.7, 556.7 and 16.77 Mpa with the 0.5 wt.% La. Finally, the enhancement mechanism of the modification solution containing La element is analyzed.

scholarly journals Carbon Fiber Reinforced Epoxy Resin Matrix Composites

2018 ◽  
Vol 1 (1) ◽  
Author(s):  
Yu Zhiyuan
Keyword(s):  
Epoxy Resin ◽  
Preparation Method ◽  
Polymer Matrix Composites ◽  
Resin Matrix ◽  
Resin Composites ◽  
Matrix Composites ◽  
Fuel Cell Application ◽  
Reinforced Polymer ◽  
Automotive Fuel ◽  
Epoxy Resin Composites

Carbon fi ber reinforced polymer matrix composites have been the focus of research. As the most widely used epoxyresin in all matrix materials, it is also the most studied. In this paper, the modification of TDE-85 epoxy resin, thecuring properties of curing agent and the preparation method of prepreg were reviewed. The progress and applicationof carbon fi ber reinforced epoxy resin composites at home and abroad were reviewed, made carbon fi ber / epoxy resincomposite materials in the automotive fuel cell application prospects.

Effect of Load on the Abrasive Wear of Silica-Filled Epoxy Resin Composites

2007 ◽  
Vol 544-545 ◽  
pp. 255-258 ◽  
Author(s):  
Sung Wi Koh ◽  
Hyung Jin Kim ◽  
Jae Dong Kim ◽  
Byung Tak Kim ◽  
Sun Oug Hwang ◽  
...  
Keyword(s):  
Friction Coefficient ◽  
Wear Rate ◽  
Abrasive Wear ◽  
Epoxy Resin ◽  
Wear Volume ◽  
Resin Composites ◽  
Wear Properties ◽  
Epoxy Resin Composites ◽  
Sliding Distance ◽  
Abrasive Paper

In the present study, the influences of load on the abrasive wear properties of silica-filled epoxy resin composites were investigated at ambient temperature. The friction coefficient, wear rate and specific wear rate against SiC abrasive paper were determined experimentally. The sliding wear tests of the materials demonstrated that the friction coefficient and the wear rate of silica filled epoxy composites were lower than those of the pure epoxy. The cumulative wear volume tended to increase nonlinearly with increase of sliding distance and depended on diameter of the silica particle for all these composites. The friction coefficient and wear rate were raised substantially with an increase in applied load.

scholarly journals Effect of Alumina Nanowires on the Thermal Conductivity and Electrical Performance of Epoxy Composites

Polymers ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2126
Author(s):  
Liangsong Huang ◽  
Xitao Lv ◽  
Yongzhe Tang ◽  
Guanghui Ge ◽  
Peng Zhang ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Epoxy Resin ◽  
Mass Fraction ◽  
Breakdown Strength ◽  
Epoxy Composites ◽  
Electrical Performance ◽  
Resin Matrix ◽  
Resin Composites ◽  
Dielectric Performance ◽  
Epoxy Resin Composites

Alumina nanowires (Al2O3-NWs)/epoxy resin composites have been thoroughly studied due to their excellent insulating and dielectric performance. In particular, understanding the effect of nano-alumina with different morphologies on the dielectric performance of composites is of great significance. In this study, Al2O3-NWs with lengths of approximately 100 nm and diameters of approximately 5 nm were prepared and blended with anepoxy resin to form composites, and the effect of the mass fraction of fillers on the thermal conductivity of the composites was investigated. Specifically, the effect of alumina fillers with ananowire structure on the insulating and dielectric performance and breakdown strength of the epoxy composites were analyzed. The influence principle of the interfacial effect and heat accumulation on the dielectric and insulating properties of the composites were described. The results demonstrated that the thermal conductivity of Al2O3-NWs/epoxy resin composites was higher than that of the bare epoxy resin. The thermal conductivity of Al2O3-NWs/epoxy resin composites increased with increasing mass fraction of fillers. When the mass fraction of fillers was 10%, the thermal conductivity of the composite was 134% higher than that of the epoxy resin matrix. The volume resistivity of the composites first increased and then decreased as the mass fraction of fillers increased, while the dielectric constant of the composites increased with increasing mass fraction of fillers and decreasing frequency. The dielectric loss of the composites decreased and then increased as the mass fraction of fillers increased, and it increased with increasing frequency. Additionally, the alternating current breakdown strength of the composites first increased and then decreased withincreasingmass fraction of fillers.

Tensile and Flexural Properties of Montmorillonite Nanoclay Reinforced Epoxy Resin Composites

2015 ◽  
Vol 1112 ◽  
pp. 373-376 ◽  
Author(s):  
Zyad Salem Alsagayar ◽  
Abdul Razak Rahmat ◽  
Agus Arsad ◽  
Siti Noor Hidayah binti Mustaph
Keyword(s):  
Mechanical Properties ◽  
Epoxy Resin ◽  
Flexural Modulus ◽  
Resin Matrix ◽  
Flexural Properties ◽  
Resin Composites ◽  
Optimum Amount ◽  
Epoxy Nanocomposite ◽  
Epoxy Resin Composites ◽  
Flexural Tests

In this work, montmorillonite (MMT) nanoclay reinforced epoxy resin was prepared to study the effect of nano filler on tensile and flexural properties of its nanocomposite. MMT was first sonicated for 2 hours with an acetone where the ratio was 50 mL acetone: 1g clay. After being sonicated the clay was added to an epoxy resin matrix at 80 °C and mixed until the acetone was removed. Tensile and flexural tests were investigated to understand the effect of clay on the mechanical properties of MMT reinforced epoxy nanocomposite. In general, the mechanical properties of MMT/epoxy nanocomposites were slightly increased as the clay loading was increased up to 1 phr. However, for the amount of nanoclay more than 1 phr the result showed significantly decrease in mechanical properties. It was found that by adding the nanoclay up to 1 phr, the Young’s and flexural modulus increased around 6.75% and 6.61%, respectively. Since the nanoclay has higher elastic modulus as compared to epoxy resin, the addition of clay increased the modulus of its nanocomposites. On the other hand, at 2 phr of nanoclay the tensile strength, Young’s modulus, flexural strength and flexural modulus deceased around 44.12%, 17.24%, 17.84% and 10.77% respectively compared to pure epoxy. For more than 1 phr of filler the clay distributions might not be well dispersed and thus more agglomerations occurred in the composites. It can be concluded that, 1 phr of MMT filler was the optimum amount that can be reinforced with epoxy resin in term of tensile and flexural properties.

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