scholarly journals Effect of Nonwoven Carbon Tissue-Reinforced Epoxy Resin Adhesive Layer on the Single Lap Bonding Strength of Aluminum Alloy Joints

ACS Omega ◽  
2021 ◽  
Vol 6 (37) ◽  
pp. 23802-23813
Author(s):  
Zhifeng Hu ◽  
Haijuan Kong ◽  
Lei Tao ◽  
Mengmeng Qiao ◽  
Dongzi Yu ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Epoxy Resin ◽  
Bonding Strength ◽  
Adhesive Layer ◽  
Resin Adhesive ◽  
Epoxy Resin Adhesive

SPALL REPAIR USING A 3D PRINTER AND EPOXY RESIN ADHESIVE

2017 ◽  
Vol 4 (1) ◽  
Author(s):  
Jaeheum Yeon ◽  
Julian Kang
Keyword(s):  
Shear Strength ◽  
Epoxy Resin ◽  
Adhesive Layer ◽  
Bond Line ◽  
Test Method ◽  
Strength Development ◽  
Resin Adhesive ◽  
Line Thickness ◽  
Bond Line Thickness ◽  
Epoxy Resin Adhesive

The spall repair sequence currently used is as follows. The damage is removed from the area with heavy equipment and fresh concrete is poured into the cleaned section. A curing compound is then applied to the patch to prevent drying shrinkage or to absorb water. But this spall repair method requires a great deal of equipment and time. During the repair process, adjacent roads must be closed in order to secure a working space, often resulting in traffic congestion. According to a report by the US Department of Transportation, the depreciation can be up to $20,000 a day due to traffic jams. The depreciation can easily reach up to $140,000 when a road is blocked for seven days to repair a spall. The objective of this research is to see if 3D printing technology can be used to repair spall damage on a concrete pavement. More specifically, this study, using a simple finite element method, investigates whether the bond line thickness will have an influence on shear strength development when an adhesive layer is present between the spall and the 3D printed concrete segment. In addition, this study proposes a modified test method of ASTM C882 to experimentally investigate the influence of bond line thickness of epoxy-resin adhesive on shear strength when the glue applied to a concrete adherend.

Analysis of the physcial properties of particleboard from a mixture of cocoa pod peel powder and styrofoam

2021 ◽  
Vol 5 (1) ◽  
pp. 7
Author(s):  
Ety Jumiati ◽  
Endang Sagita Ritonga ◽  
Abdul Halim Daulay
Keyword(s):  
Moisture Content ◽  
Physical Properties ◽  
Epoxy Resin ◽  
Powder Mixture ◽  
Surface Shape ◽  
Particle Board ◽  
Hot Press ◽  
Resin Adhesive ◽  
Cocoa Pod Husk ◽  
Epoxy Resin Adhesive

<p><strong><em>Abstract</em></strong><strong></strong></p><p><strong><em>Abstract. This study aims to determine the effect of optimal physical properties and microstructure on particleboard samples. The percentage variations of cocoa pod peel powder mixture, styrofoam with epoxy resin adhesive were sample A (69:0:30), sample B (68:2:30), sample C (67:3:30), and sample D (66:4:30). 6:30). The materials were compressed were a hot press and a conditioning time of 14 days. sThe most optimum particleboard sample was found in sample B with values of density, moisture content, and thickness expansion, respectively 0,80 g/cm</em></strong><strong><em><sup>2</sup></em></strong><strong><em>, 7,74%, and 9,32%, and met the standards of SNI 03-2105- 2006. The surface shape of the particle board morphology in sample B shows the composition of the material with the adhesive binding optimally so that there are very few empty spaces or cavities.</em></strong><strong></strong></p><h1 align="center"><em> </em></h1><p><strong><em>Keywords:</em></strong><em> cocoa pod husk powder, styrofoam, particle board, epoxy resin.</em></p>

Study on Nano-Particle Modified Epoxy Resin Adhesive

2011 ◽  
Vol 415-417 ◽  
pp. 35-38 ◽  
Author(s):  
Guang Qing Gai ◽  
Xiang Ting Dong ◽  
Xue Song Chen ◽  
Cheng Yan Zheng
Keyword(s):  
Mechanical Properties ◽  
Epoxy Resin ◽  
Nano Particles ◽  
Nano Particle ◽  
Resin Adhesive ◽  
Nano Zinc Oxide ◽  
Epoxy Resin Adhesive ◽  
Nano Zinc ◽  
Nano Titanium Dioxide ◽  
Modified Epoxy

The nano-particle modified epoxy resin adhesive was prepared by adding different types of nanoparticles to the epoxy resin adhesives.The influence of the kinds and amount of nanoparticles on the mechanical properties of epoxy resin adhesive was investigated.The investigation results indicated that the addition of three kinds of nanoparticles including nano-silica,nano-titanium dioxide,nano zinc oxide to epoxy resin adhesive has a significant influence on the mechanical properties of nano-composites.And tensile strength and breaking elongation of nano-composites reached the maximum when the amount of nanoparticle reached 4wt%.In addition,the toughening mechanisms of nano-particles modified epoxy resin adhesives was analysed.

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