MDF dust/PP composites reinforced with nanoclay: Morphology, long-term physical properties and withdrawal strength of fasteners in dry and saturated conditions

Chavooshi, Arash; Madhoushi, Mehrab; Navi, Mohammad; Abareshi, Mohammad Yousef

doi:10.1016/j.conbuildmat.2013.11.045

Cited by 20 publications

(13 citation statements)

References 31 publications

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“…Araujo et al 13 worked with three different nanoclays (Cloisites) and found out that nanoclays which present poor dispersion in PLA promote the formation of filler aggregates causing decrements in tensile, flexural, and impact strength. Chavoshi et al 32 varied Cloisite 15A content in MDF-PP composites and observed that addition of 2% of nanoclay is the optimal to prevent agglomeration of such nanoparticles. Composite strength and toughness are very much dependent on the adhesion at the interface.…”

Section: Resultsmentioning

confidence: 99%

Effect of low nanoclay content on the physico-mechanical properties of poly(lactic acid) nanocomposites

Robledo‐Ortíz

Campo

López-Naranjo

et al. 2018

Polymers and Polymer Composites

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In this work, three different nanoclays (1.44P, 1.34MN, and Cloisite 15A) were used to reinforce an injection grade poly(lactic acid) (PLA). The nanocomposites (NCs) were prepared using three different nanoclay concentration levels (1, 3, and 5 wt%) in a twin-screw extruder. To evaluate their mechanical performance (static and dynamic tests) and thermal properties, the respective samples were obtained by injection molding. Results showed that the three nanoclays significantly increased the tensile and flexural modulus of the injection grade PLA. The 1.34MN NCs also showed improvement in the tensile strength. An increment in flexural strength was obtained with 1.34MN and 1.44P nanoclays, while with nanoclay 15A, the flexural strength decreased. Additionally, the use of 5 wt% of 1.44P nanoclay allowed an increase in impact strength while using 1.34MN and 15A nanoclays, the impact strength was similar to the one observed for pure PLA. In general, mechanodynamic analysis results showed that storage modulus increased with nanoclay content; while thermogravimetric analysis indicated that none of the nanoclays has a significant effect over the degradation temperature of pure PLA. Differential scanning calorimetry results showed that the crystallinity of PLA is enhanced with nanoclay inclusion. For 1.34MN NCs, X-ray diffraction observations exposed that the mineral clay relative intensity peaks disappeared indicating nanoclay exfoliation, which contributes to the increase in tensile and flexural strength in the NCs. Nevertheless for 1.44P and 15A nanoclays, an increase in the interlayer distance (intercalation) was detected.

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Section: Resultsmentioning

confidence: 99%

Effect of low nanoclay content on the physico-mechanical properties of poly(lactic acid) nanocomposites

Robledo‐Ortíz

Campo

López-Naranjo

et al. 2018

Polymers and Polymer Composites

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“…WA and TS in both blending methods increases as the percentage of MDF dust in the composites increases. The hydrophilic nature of wood (high free‐OH) is responsible for more water penetration into WPC composites . Besides, huge number of porous tubular structures presented in fiber accelerates the water infiltration rate by the so‐called capillary effect.…”

Section: Resultsmentioning

confidence: 99%

A comparative study on the effects of material blending method on the physico‐mechanical properties of WPCs made from MDF dust

Chavooshi

Madhoushi

Shakeri

et al. 2014

J of Applied Polymer Sci

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The present study was carried out to investigate the effect of material‐blending method and filler content on the physical and mechanical properties of medium density fiberboard (MDF) dust/PP composites. In the sample tests preparation, 40, 50, and 60 wt % of MDF dust were used as lignocellulosic material. Test samples were made to measure the influence of material‐blending method and MDF dust content on water absorption (WA), thickness swelling (TS), modulus of elasticity (MOE), modulus of rupture (MOR), tensile strength, tensile modulus, and withdrawal strengths of fasteners. The mechanical properties of the test panels significantly decreased with increasing MDF dust contents due to the reduction of interface bond between the fiber and polymer matrix. The WA and TS values also increased by increasing the amount of MDF dust. So with the increase in the MDF dust content, there are more water residence (high hydroxyl groups (OH) of cellulose and hemicelluloses) sites, thus more water is absorbed, so it can reduce mechanical strength. Furthermore, the results indicated that the physical and mechanical properties of samples made with melt‐blend method were more acceptable than those of dry‐blend method. Field emission scanning electron microscopy micrographs also showed that the polymer and the filler phase mixed better in the melt‐blend method. On the basis of the findings of this research, it appears evident that certain amount of MDF dust material with suitable material‐blending method can be used in manufacturing of wood–plastic composites for providing good physical and mechanical properties. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 40513.

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“…The authors stated that formation of boundaries between the nanoclay clusters and epoxy can refine the matrix grains and further improve the flexural strength of the composites. Arash et al (2014) studied the effect of nanoclay loading (0, 2, 4 and 6 %) on long-term physical properties and withdrawal strength of fasteners before and after saturation for polypropylene/medium density fiberboard MDF dust composites. Sanding dust of MDF was used as lignocellulose material and polypropylene as the thermoplastic material.…”

Section: Properties Of Nanocompositesmentioning

confidence: 99%

Nanoclay/Polymer Composites: Recent Developments and Future Prospects

Dasan

2015

Advanced Structured Materials

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Clay can be counted among the most widely investigated and commercially high demand filler in the polymer industry. Recently there has been a growing interest for the development of polymer/clay nanocomposites due to their superior properties compared to conventional filled polymers even at a very low fraction of filler addition. The easy availability, processability, low cost, and nontoxicity of clay and the advancements in the processing of clay nanocomposites have invited a lot of commercial attention for these materials. The value-added properties enhanced without sacrificing of pure polymer properties make the clays more and more important in the modern polymer industry. Today it finds a wide range of applications ranging from household items to aerospace to medicine. This chapter looks at the chemical and physical aspects of this wonderful material, clay/polymer nanocomposite processing techniques, and the commercial importance of these nanocomposites.

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MDF dust/PP composites reinforced with nanoclay: Morphology, long-term physical properties and withdrawal strength of fasteners in dry and saturated conditions

Cited by 20 publications

References 31 publications

Effect of low nanoclay content on the physico-mechanical properties of poly(lactic acid) nanocomposites

Effect of low nanoclay content on the physico-mechanical properties of poly(lactic acid) nanocomposites

A comparative study on the effects of material blending method on the physico‐mechanical properties of WPCs made from MDF dust

Nanoclay/Polymer Composites: Recent Developments and Future Prospects

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