scholarly journals EFFECT OF ALMOND SHELL PARTICLES ON TENSILE PROPERTY OF PARTICLEBOARD

2020 ◽  
Vol 2 (2) ◽  
pp. 51-54
Author(s):  
Isselem Arbih Ethmane ◽  
Ahmed Yahfdhou
Keyword(s):  
Epoxy Resin ◽  
Tensile Properties ◽  
Tensile Property ◽  
Raw Material ◽  
Almond Shell ◽  
Shell Particles

The objective of the study was to fabricate particleboard using almond shell. The significance of the study is that it can result in creating raw material for panel industry which is in shortage these days. Different particleboards were made based on almond shell particles ratios mixed with epoxy resin. In this study, we investigated the resulting shell particleboard tensile properties. Results shows that when added with almond shell, the tensile properties of the resulting panel showed greater performance. For example, it showed better hardness which is a desirable quality.

scholarly journals Synergistic effects of multiwalled carbon nanotubes and core-shell particles on the toughness and physico-mechanical properties of epoxy resin: a systematic study

2021 ◽  
Author(s):  
Ali Gharieh ◽  
Mir Saeed Seyed Dorraji
Keyword(s):  
Carbon Nanotubes ◽  
Tensile Strength ◽  
Elastic Modulus ◽  
Epoxy Resin ◽  
Tensile Properties ◽  
Multiwalled Carbon Nanotubes ◽  
Core Shell ◽  
Multiwalled Carbon ◽  
Impact Modifier ◽  
Shell Particles

Abstract Here, core-shell impact modifier particles (CSIMPs) and multiwalled carbon nanotubes (MWCNs) were used as reinforcing agents for improving toughness and tensile properties of epoxy resin. For this purpose, emulsion polymerization technique was exploited to fabricate poly(butyl acrylate-allyl methacrylate) core- poly(methyl methacrylate-glycidyl methacrylate) shell impact modifier particles with average particle size of 407 nm. It was revealed that using a combination of the prepared CSIMPs and MWCNTs could significantly enhance toughness and tensile properties of epoxy resin. Also, it was observed that the dominant factors in enhancing the fracture toughness of the ternary composites are crack deflection/arresting as well as enlarged plastic deformation around the growing crack tip induced by the combination of rigid and soft particles. The Response Surface Methodology (RSM) with central composite design (CCD) was utilized to study the effects of the amounts of core-shell particles and multiwalled carbon nanotubes on the toughness and tensile properties of epoxy resin. The proposed quadratic models were in accordance with the experimental results with correlation coefficient more than 98%. The optimum condition for maximum toughness, elastic modulus, and tensile strength were 3 % wt. MWCNT and 1.03 % wt. CSIMPs. The sample fabricated in optimal condition indicated toughness, elastic modulus, and tensile strength equal to 2.2 MPa. m1/2, 3014.5 MPa and 40.6 MPa, respectively.

Dielectric properties and thermal conductivity of epoxy resin composite modified by Zn/ZnO/Al2O3 core–shell particles

2018 ◽  
Vol 76 (8) ◽  
pp. 3957-3970 ◽  
Author(s):  
Yang Wang ◽  
Lingjie Zhu ◽  
Jun Zhou ◽  
Beibei Jia ◽  
Yingye Jiang ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Dielectric Properties ◽  
Epoxy Resin ◽  
Resin Composite ◽  
Core Shell ◽  
Epoxy Resin Composite ◽  
Shell Particles

scholarly journals The application of a phosphorus nitrogen flame retardant curing agent in epoxy resin

e-Polymers ◽  
2019 ◽  
Vol 19 (1) ◽  
pp. 545-554 ◽  
Author(s):  
Anxin Li ◽  
Pingli Mao ◽  
Bing Liang
Keyword(s):  
Flame Retardant ◽  
Epoxy Resin ◽  
Adhesive Strength ◽  
Chemical Structure ◽  
Phosphorus Content ◽  
Raw Material ◽  
Curing Agent ◽  
Thermal Degradation Behavior ◽  
Overall Performance ◽  
The Impact

AbstractIn order to improve the compatibility of flame retardant and epoxy resin, a phosphorus nitrogen flame retardant curing agent poly(p-xylylenediamine spirocyclic pentaerythritol bisphosphonate) (PPXSPB) was synthesized. FTIR, 1HNMR, and mass spectroscopy were used to identify the chemical structure of PPXSPB. Epoxy resin (E-44) and PPXSPB as the raw material, a series of thermosetting systems were prepared. The effects of PPXSPB on flame retardancy, water resistance, thermal degradation behavior, mechanical properties and the adhesive strength of EP/PPXSPB thermosets were investigated. The results show that with the increase of phosphorus content, the oxygen index and carbon residue of the system both increased significantly, and the heat release rate gradually decreased, which is of great significance in delaying the occurrence of fire. When the phosphorus content is 3.24% in EP/PPXSPB thermosets, EP-2 can successfully pass the UL94 V-0 flammability rating, the LOI value of EP-2 can reach 31.4%, the impact strength and tensile strength was 6.58 kJ/m2 and 47.10 MPa respectively, and the adhesive strength was 13.79 MPa, the system presents a good overall performance.

scholarly journals Epoxy resin filled with primary and secondary raw material – useable in agriculture

2014 ◽  
Vol 60 (No. 4) ◽  
pp. 165-171 ◽  
Author(s):  
P. Valášek ◽  
J. Kejval ◽  
M. Müller
Keyword(s):  
Mechanical Properties ◽  
Wear Resistance ◽  
Epoxy Resin ◽  
Filler Particle ◽  
Polymeric Materials ◽  
Raw Material ◽  
Nano Particles ◽  
Inorganic Particles ◽  
Increase Wear Resistance ◽  
Secondary Raw Material

Hard inorganic particles in the interaction with polymeric materials increase wear resistance. Also reactoplastics are suitable for filling with micro- and nano-particles for a purpose of some mechanical properties optimization. The paper compares chosen mechanical properties – hardness, wear resistance and tensile characteristics of epoxy resin filled with artificial corundum with various middle particles sizes and their ratio combination. Mentioned systems can be used in a sphere of the agricultural production at renovation of machine parts, they can serve for creating resistant layers on machines, floors and grillages at the same time. The aim of the carried out experiment is to compare the properties of reactoplastics filled with a primary and secondary raw material and to define an optimum ratio of the filler particle size relating to a given mechanical quality. The artificial corundum was chosen as the primary material, the waste corundum from the process of material mechanical treatment was chosen as the secondary one.    

Internal stress of epoxy resin modified with acrylic core-shell particles prepared by seeded emulsion polymerization

1986 ◽  
Vol 32 (5) ◽  
pp. 4865-4871 ◽  
Author(s):  
Yoshinobu Nakamura ◽  
Haruo Tabata ◽  
Hideto Suzuki ◽  
Kazuo Iko ◽  
Masayoshi Okubo ◽  
...  
Keyword(s):  
Epoxy Resin ◽  
Internal Stress ◽  
Emulsion Polymerization ◽  
Core Shell ◽  
Seeded Emulsion Polymerization ◽  
Shell Particles

Water absorption and thickness swelling behavior of almond (Prunus amygdalus L.) shell particles and coconut (Cocos nucifera) fiber hybrid epoxy-based biocomposite

2015 ◽  
Vol 22 (4) ◽  
Author(s):  
Arun Kumar Chaudhary ◽  
Prakash Chandra Gope ◽  
Vinay K. Singh
Keyword(s):  
Water Absorption ◽  
Saline Water ◽  
Cocos Nucifera ◽  
Thickness Swelling ◽  
Coconut Fiber ◽  
Almond Shell ◽  
Agricultural Residue ◽  
Agriculture Waste ◽  
Shell Particles ◽  
Socioeconomic Benefits

AbstractIn this research, the suitability of almond shell and coconut fiber as a renewable agricultural residue for the manufacturing of biocomposite to be used as a replacement of wood was investigated. The use of agriculture waste as a reinforcement in composite may result in several environmental and socioeconomic benefits. A biocomposite containing different weight percentages of almond shell particle (10, 20, 30, 40, and 50 wt%) and coconut fiber (2, 4, and 6 wt%) mixed with 20 wt% almond shell particles was made using epoxy resin and 0.5 wt% tricresyl phosphate. The water absorption (WA), thickness swelling (TS), and morphology [scanning electron microscopy (SEM)] test of the biocomposite were determined. The rate of WA is less in saline water (SW) compared to rainwater (RW). The influence of the addition of coconut fiber is more compared with the almond shell particles for both the WA and TS.

Development of Epoxy Grout Containing Fine Waste from Production of Mineral Wool Board Insulation

2018 ◽  
Vol 878 ◽  
pp. 275-280 ◽  
Author(s):  
Jakub Hodul ◽  
Tomáš Žlebek ◽  
Rostislav Drochytka
Keyword(s):  
Thermal Resistance ◽  
Epoxy Resin ◽  
Filler Content ◽  
Physical And Mechanical Properties ◽  
Optical Microscope ◽  
Mechanical Analysis ◽  
Mineral Wool ◽  
Raw Material ◽  
Strength Increase ◽  
Economic Point

Within this work, it was experimentally verified that the waste from mineral wool board insulation production (WIRG) with high portion of glass recyclate (> 80%) and no organic material seems like ideal filler for polymer grouting materials. The main objective was to develop a progressive grout on epoxy basis with as high content of this secondary raw material as possible, while achieving physical and mechanical properties as e.g. very fast strength increase and high thermal resistance. With regard to the consistency of epoxy grout in the fresh state, three different filling were tested, namely 60%, 65% and 70%. The grout with lower filling is too fluid, and it is also disadvantageous from an economic point of view because a large amount of epoxy resin is used. On the other hand, at higher filing, it is not possible to mix the filler into epoxy resin properly. Setting of an optimal filler content in the mixture was performed mostly on the basis of the results of compressive and three-point flexural strength test. It was found out that the optimal amount of the filler is 65%. In case of the best formulation with optimal filler content (65% WIRG), the thermal resistance was monitored by determination of the glass transition temperature (Tg) by the dynamic mechanical analysis (DMA) method. Furthermore, the optical microscope with high resolution was used to monitor filler distribution and homogeneity of the hardened developed epoxy grout.

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