Water absorption and mechanical properties of PP/HIPS hybrid composites filled with wood flour

Ayrılmış, Nadir; Taşdemi̇r, Münir; Akbulut, Turgay

doi:10.1002/pc.23647

Cited by 30 publications

(17 citation statements)

References 22 publications

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“…Wood-plastic composites (WPCs) possess the combined advantages of wood and plastic; they not only have a natural wood-like appearance, but also have multiple advantages, e.g., they are resistant to degradation, moisture-proof, insect-resistant, higher in dimensional stability, resistant to cracking, not susceptible to warping, etc. WPCs also have good thermoplastics processability, higher hardness than plastic, and could be wearresistant, and aging-resistant (Arnandha et al 2017;Ayrilmis et al 2017;Dias and Alvarez 2017;Wang et al 2017). As an advanced manufacturing technology with the advantages of improving the production efficiency, reducing the cutting force, improving the machining precision and surface quality, and reducing the costs, high-speed cutting technology has been widely used in the cutting of wood-based materials (Guo et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Surface roughness and chip morphology of wood-plastic composites manufactured via high-speed milling

Wei

Cong

Xue

et al. 2021

BioRes

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Wood-plastic composites have attracted extensive attention throughout the world because of their advantages. However, the manufacturing mechanism of the wood-plastic composites, i.e., high-speed milling technology, is not perfect and needs further study. The effects of the cutting parameters, i.e., the spindle speed, feed rate, axial milling depth, and radial milling depth, on the surface roughness and chip morphology were studied; the surface roughness values, Ra and Rz of high-speed milling wood-plastic composites samples were measured via high precision surface roughness measuring instrument, and their regression equations were calculated. The chips produced via a high-speed milling process were collected and studied. The results showed that the surface roughness of the wood-plastic composites increases with an increase in the axial depth, feed rate, or radial depth, but decreases with an increase in the spindle speed. In addition, the axial milling depth, feed rate, and spindle speed had a significant effect on the morphology of the chips. However, the effect of the radial milling depth on the morphology of the chips was not obvious. The results can provide a scientific basis for the optimization of high-speed milling processing of wood-plastic composites.

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Section: Introductionmentioning

confidence: 99%

Surface roughness and chip morphology of wood-plastic composites manufactured via high-speed milling

Wei

Cong

Xue

et al. 2021

BioRes

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“…Many studies have been reported on the thermal, mechanical, and water absorption properties of WPCs depending on the compositional parameters. 16–25 But, melt-state rheological properties of WPCs have been less studied so far compared to their solid-state physical properties. 26–30 Kaseem et al.…”

Section: Introductionmentioning

confidence: 99%

Quantifying effects of compositional variations on microstructural properties of polypropylene-wood fiber composites by melt rheology and tensile test data

Durmuş

Özcan

Aydın

2018

Journal of Composite Materials

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In this study, melt-state rheological behavior and solid-state mechanical properties of polypropylene-wood fiber composites were investigated in detail depending on compositional variations such as (i) alkaline treatment on wood fibers, (ii) fiber size, (iii) wood fiber content, and (iv) compatibilizer/wood fiber ratio. Composite samples were prepared in a lab-scale co-rotating twin screw extruder by using a maleic anhydride grafted polypropylene as compatibilizer. Morphological features of composites were examined in a scanning electron microscopy. Viscoelastic behavior and mechanical properties of samples were analyzed by performing oscillatory tests in a rotational rheometer and a universal tensile test machine. It was found that the increasing amounts of wood fiber and compatibilizer/wood fiber ratio led to improve melt elasticity and tensile strength. It was concluded that the amount of compatibilizer into composite formulation was the most important compositional parameter compared to size and chemical treatment of wood fibers for improving the physical properties of composites. The Nicolais-Nicodemo micromechanical model showed that the increasing amount of compatibilizer yielded lower parameters which implied better interfacial adhesion between polypropylene and wood fibers.

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“…Continuous swelling over time will eventually lead to micro-cracks in the composites. 2 Even though, there are several articles that reported the research on water absorption of WPCs, [3][4][5][6][7][8][9][10] but with little emphasis on its effects on the tensile and thermal properties. Therefore, realizing its importance in the development of WPCs, this research focuses on studying the effect of water absorption on the tensile and thermal properties of wood fiber-reinforced polymer composite, using mangrove particle (MP) and high-density polyethylene (HDPE) as matrix.…”

Section: Introductionmentioning

confidence: 99%

Impact of water saturation on the tensile and thermal properties of heat-treated mangrove/high-density polyethylene composites

Adebayo

Hassan

Yahya

et al. 2019

Journal of Thermoplastic Composite Materials

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The main barrier in the use of natural fiber (NF) as a reinforcing material in thermoplastic composites meant for outdoor applications is NF’s hydrophilicity. Thus, heat treatment of vacuum-dried mangrove was conducted at 120°C in order to reduce the hydrophilic nature of mangrove. The untreated and heat-treated mangrove particles were compounded with high-density polyethylene (HDPE) at 10, 20, and 30 wt% in a twin-screw extruder and injection molded into dog-bone-shaped test pieces for tensile tests and thermal analysis (thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC)). Test pieces were immersed in distilled water for 1440 h at ambient temperature (approximately 27°C) and a relative humidity of 60–65%. The results revealed that the earliest and latest water saturation were observed at 480 and 792 h for 10 wt% treated and 30 wt% untreated composites, respectively. The dry composites maintained higher tensile strength and modulus but lower tensile strain than the water-saturated composites irrespective of treatment. Scanning electron microscopy of tensile fractured surfaces confirmed an improved mangrove-HDPE interfacial interaction of treated composites in both dry and water-saturated conditions. The TGA and DSC data showed that the maximum degradation temperature of dry composites is higher than the wet composites. Overall, the treated composites at dry and water-saturated conditions indicated better tensile and thermal stability than the untreated mangrove-filled HDPE composites; these are possible indications of better performance during outdoor applications.

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Water absorption and mechanical properties of PP/HIPS hybrid composites filled with wood flour

Cited by 30 publications

References 22 publications

Surface roughness and chip morphology of wood-plastic composites manufactured via high-speed milling

Surface roughness and chip morphology of wood-plastic composites manufactured via high-speed milling

Quantifying effects of compositional variations on microstructural properties of polypropylene-wood fiber composites by melt rheology and tensile test data

Impact of water saturation on the tensile and thermal properties of heat-treated mangrove/high-density polyethylene composites

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