Effects of heat treatment on the properties of bamboo fiber/polypropylene composites

Ying, Sanjiu; Wang, Chuanbao; Lin, Qing

doi:10.1007/s12221-013-1894-5

Cited by 21 publications

(23 citation statements)

References 24 publications

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“…Furthermore, a thermal treatment can significantly improve the color stability of wood. However, thermal treatment also degrades its natural color and strength (Shangguan et al 2016;Yang et al 2016). To counteract this effect, the lignin phenoxy radicals of acetylated wood have been used with some success in reducing photoinduced degradation and improving the dimensional stability of wood (Beckers et al 1998).…”

Section: Introductionmentioning

confidence: 99%

“…The depth of the photodegradation and the rate of erosion of the wood during weathering depends greatly on the density (Horn et al 1994;Evans et al 2005). Many previous studies of anti-aging treatments have focused on the changes in the physical and mechanical properties, color characteristics, and chemical composition of bamboo and bamboo-based composites (Beckers et al 1998;Cristea et al 2010;Lesar et al 2011;Tolvaj et al 2011;Srinivas and Pandey 2012;Tomak et al 2012;Baysal et al 2014;Tolvaj et al 2014;Li et al 2015;Zhu et al 2015;Shangguan et al 2016). Furthermore, the effects of the density on the performance of bamboo and bamboo-based composites have been reported Tolvaj et al 2011;Srinivas and Pandey 2012;Baysal et al 2014;Tolvaj et al 2014;Li et al 2017).…”

Section: Introductionmentioning

confidence: 99%

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Preparation and Characterization of Outdoor Bamboo-Fiber-Reinforced Composites with Different Densities

Rao¹,

Chen²,

Li³

et al. 2017

BioResources

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aOutdoor bamboo-fiber-reinforced composites (OBFRCs) with four different densities were prepared, and the microstructure and physicomechanical properties of pristine samples were evaluated. In addition, the surface color, glossiness, roughness, water absorption, and wettability of the samples were tested to investigate the effects of panel density on the extent of surface weathering due to ultraviolet radiation. The results showed that the OBFRCs exhibited excellent physical and mechanical properties, which improved with increasing density. However, increases in the density led to decreases in the hygroscopicity and dimensional stability of the OBFRCs. After weathering, the surface contact angle and surface roughness increased, and the dimensional stability improved. The surface glossiness, water absorption, and surface free energy decreased. A higher density resulted in improved color stability, which suggested that density played an important role in determining surface photodegradation properties. Thus, densityincreasing treatments had positive effects on the physical and mechanical properties as well as the color stability and wettability of the OBFRCs, but they may negatively affect the roughness and dimensional stability. Based on service-performance and cost-minimization considerations, 1.1 g/cm 3 was determined as the most appropriate density for general applications.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Outdoor Bamboo-Fiber-Reinforced Composites with Different Densities

Rao¹,

Chen²,

Li³

et al. 2017

BioResources

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“…Someone has also found that old wooden material is easier to produce small amplitude acoustic emission signal compared to new wooden material [5]. Ying et al [6] once explore physical mechanical properties of bamboo, and Yong et al [7] compared banding property between bamboo and wood. Compared to crack of W wood, research on crack of bamboo is fewer.…”

Section: Introductionmentioning

confidence: 99%

Damage of bamboo and wooden materials based on linear elastic fracture mechanics in garden design

Tang¹

2015

Frattura Ed Integrità Strutturale

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Bamboo and wood are the most widely applied and the oldest natural structural materials in the world. Currently, worldwide output of wooden material is 1 billion ton, almost the same as steel. Most of them are used as structure, such as load carrying girder, scaffold, floor and support. Wooden materials and bamboo materials with clear microstructure are composite biomaterials which can be studied under multiple scales. Irregular evolution behaviors of initial defects or damage during loading determines macro mechanical behavior of wooden and bamboo materials. Taking wood and bamboo as test materials, this study explored mechanical characteristics and damage crack behavior of wood and bamboo as well as toughening mechanism.

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“…The growth rate of bamboo is typically quite rapid, with six to eight months required to reach mature size, which is only 5% of the time required for most timbers. Because of bamboo's excellent mechanical performance, good renewability, and economic efficiency, a large number of studies pertaining to the use of bamboo fiber (BF) as natural organic filler in polymer composites have been conducted (Mi et al 1997;Chen et al 1998;Okubo et al 2004;2005;Chattopadhyay et al 2011;Ying et al 2013). For example, Chattopadhyay et al (2011) investigated the mechanical, thermal, and morphological properties of short BFreinforced polypropylene (PP) composite with various loadings of chemically modified BFs.…”

Section: Introductionmentioning

confidence: 99%

“…Lee and Wang (2006) found that the use of lysine-based diisocyanate (LDI) as a bio-based coupling agent improves the tensile properties, water resistance, and interfacial adhesion of biodegradable poly-lactic acid (PLA) and poly-butylene succinate (PBS)-based composites with BF. Ying et al (2013) investigated the effect of heat treatment of BFreinforced PP composite on the crystallinity of PP matrix and how much tensile property is improved. Heat treatment resulted in enhancing the crystallinity of the composite, but a longer treatment time decreased tensile strength.…”

Section: Introductionmentioning

confidence: 99%

Effect of Hot-Compressed Water Treatment of Bamboo Fiber on the Properties of Polypropylene/Bamboo Fiber Composite

Chang¹,

Kwon²,

Kim³

et al. 2015

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A water-soluble fraction of bamboo ranging from 9.2 to 23.5 wt% was obtained by hot-compressed water (HCW) treatment as the temperature increased from 140 to 180 °C. Both untreated and HCW-treated bamboo fibers (BF) were then compounded with polypropylene (PP), either with or without the addition of 5 phr maleic anhydride-grafted PP (MAPP), to net a total BF content of 50, 30, or 10%. It was found that both the HCW treatment and the MAPP addition effectively improved the tensile properties of the composite. Furthermore, the re-compounding of 70/30 and 90/10 composites from a 50/50 master batch proved to be more effective in improving the tensile properties than the direct compounding of PP and non-or HCW-treated BF to the same composition.

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Effects of heat treatment on the properties of bamboo fiber/polypropylene composites

Cited by 21 publications

References 24 publications

Preparation and Characterization of Outdoor Bamboo-Fiber-Reinforced Composites with Different Densities

Preparation and Characterization of Outdoor Bamboo-Fiber-Reinforced Composites with Different Densities

Damage of bamboo and wooden materials based on linear elastic fracture mechanics in garden design

Effect of Hot-Compressed Water Treatment of Bamboo Fiber on the Properties of Polypropylene/Bamboo Fiber Composite

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