Effect of Chlorinated Paraffin Nanoemulsion on the Microstructure and Water Repellency of Ultra-Low Density Fiberboard

Cai, Lili; Fu, Qilan; Niu, Min; Wu, Zhenzeng

doi:10.15376/biores.11.2.4579-4592

Cited by 3 publications

(2 citation statements)

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“…Studies on wood fiber reinforced composites have mainly focused on low-density fiberboard (LDF) (< 600 kg/m 3 ) (Chen et al 2015a,b;Cai et al 2016) and medium-density fiberboard (MDF) (600 kg/m 3 to 800 kg/m 3 ) (Sliseris et al (2015) and Arévalo and Peijs (2016) prepared MDF using methylene diphenyl diisocyanate and the self-binding capability of cellulose, respectively. However, these improvements are very limited and cannot be used in decorative facades due to its low mechanical properties according to JG/T 260 (2009).…”

Section: Introductionmentioning

confidence: 99%

“…Studies on wood fiber reinforced composites have mainly focused on low-density fiberboard (LDF) (< 600 kg/m 3 ) (Chen et al 2015a,b;Cai et al 2016) and medium-density fiberboard (MDF) (600 kg/m 3 to 800 kg/m 3 ) (Sliseris et al 2014;Taghiyari et al 2015a,b;Liang et al 2016;Taghiyari et al 2016). The LDF is often referred to as insulation board because it is mainly used for thermal insulation in civil engineering.…”

Section: Introductionmentioning

confidence: 99%

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Investigation into Mechanical, Thermal, Flame-Retardant Properties of Wood Fiber Reinforced Ultra-High-Density Fiberboards

2017

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The demand has grown in many fields for materials that are eco-friendly and sustainably developed. In this study, several formulations of novel wood fiber reinforced ultra-high-density fiberboards (UHDFs) using resoltype phenolic resin (RTPR) as binders were manufactured for application in decorative building facades. The influences of the various formulations on water resistance and the mechanical, thermal, and fire-resistant properties were systematically examined. All formulations of the UHDFs exhibited better water resistance, internal bonding, and fire resistance as the RTPR content and density increased. To better evaluate mechanical properties, the microstructure of the UHDFs was observed using scanning electron microscopy. After optimization of hot-pressing conditions, UHDFs with excellent mechanical properties of approximately 7.2 GPa, 85.9 MPa, and 5.4 MPa for bending modulus, bending strength, and internal bonding, respectively, were achieved. Good water and flame resistance were also achieved, which makes these materials competitive with other commercial products. District, Beijing, PR China, 100091; b: College of Furniture and Industrial Design, Nanjing Forestry University, No. 159 LongPan Road, Nanjing, Jiangsu, P.R. China, 210037; * Corresponding author: Guowj717@sina.com Keywords INTRODUCTIONCurrently, reducing carbon and promoting sustainable development are among the most pressing issues in high-energy-dissipation building projects, which are now making great efforts to develop green building materials. Ceramic tiles are an important material for use in decorative building facades. However, their production process creates a lot of dust and consumes a lot of electrical energy. Therefore, the authors proposed a novel, natural, fiber-reinforced biomass composite as an alternative to ceramic tiles for use in decorative facades, contributing to the sustainable development of green buildings.Wood fibers, an environmentally friendly, natural fiber, have been widely used in indoor furniture (Saz-Orozco et al. 2014;Sommerhuber et al. 2016;Wang et al. 2016) and automobile interiors (Ann Gnpta et al. 2008;Gallo et al. 2013), but are not often used as structural materials in engineering due to their poor mechanical properties.Conventionally, wood fiber reinforced composites are composed of wood fibers that have been pressed together under high temperature and pressure with a resin binder to form a homogeneous board. Studies on wood fiber reinforced composites have mainly focused on low-density fiberboard (LDF) (< 600 kg/m 3 ) (Chen et al. 2015a,b;Cai et al. 2016) and medium-density fiberboard (MDF) (600 kg/m 3 to 800 kg/m 3 ) (Sliseris et al. (2015) and Arévalo and Peijs (2016) prepared MDF using methylene diphenyl diisocyanate and the self-binding capability of cellulose, respectively. However, these improvements are very limited and cannot be used in decorative facades due to its low mechanical properties according to JG/T 260 (2009). To promote the application of wood fiber reinforced composite...

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Section: Introductionmentioning

confidence: 99%

“…Studies on wood fiber reinforced composites have mainly focused on low-density fiberboard (LDF) (< 600 kg/m 3 ) (Chen et al 2015a,b;Cai et al 2016) and medium-density fiberboard (MDF) (600 kg/m 3 to 800 kg/m 3 ) (Sliseris et al 2014;Taghiyari et al 2015a,b;Liang et al 2016;Taghiyari et al 2016). The LDF is often referred to as insulation board because it is mainly used for thermal insulation in civil engineering.…”

Section: Introductionmentioning

confidence: 99%

Investigation into Mechanical, Thermal, Flame-Retardant Properties of Wood Fiber Reinforced Ultra-High-Density Fiberboards

2017

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Facile surface hydrophobization of medium-density fiberboard (MDF) by silver deposition

Guo

2017

Holzforschung

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A facile and effective method for the surface hydrophobization of medium-density fiberboards (MDFs) via the silver (Ag) mirror reaction has been investigated. The pristine MDF surface was treated with silver nitrate (AgNO3) and subsequently with glucose to reduce Ag ions into Ag particles, which led to dual-size surface roughness. The roughness and morphology of the Ag-coated MDF surface were characterized by scanning electron microscopy (SEM), and the elemental composition and the crystal structure of the surface were determined via energy-dispersive X-ray spectroscopy (EDXS) and X-ray diffraction (XRD) analyses. The wettability of the MDF surface was measured by contact angle (CA) measurements. The results indicated that pure Ag particles were successfully deposited onto the MDF surface without any impurities. The Ag surface coating was water repellent as indicated by a CA of 136°, which slightly decreased with time. The hydrophobicity was derived from the air trapped in the surface cavities and the dual-size roughness.

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Cellulose fiber based fungal and water resistant insulation materials

Zheng

Ottenhall

et al. 2017

Holzforschung

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The development of thermal insulation materials from sustainable, natural fibrous materials is desirable. In the present study, cellulose fiber based insulation foams made of bleached chemi thermo mechanical pulp (CTMP) have been investigated. To improve water resistance, the foams were impregnated with hydrophobic extractives from the outer bark of birch (Betula verrucosa) and dried. The surface morphology of the foams and the distribution of the deposited particles from the extractives were observed by scanning electron microscopy (SEM). The modified foams showed improved water resistance, as they did not disintegrate after immersion in water for 7 days, whereas the unmodified foam did. Compared to the unmodified foam, the modified foams absorbed 50% less moisture within 24 h. The modification had no negative effects on the thermal insulation properties, fungal resistance or compressive strength of the foams. The proposed approach is simple and can be easily integrated into plants working based on the biorefinery concept.

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Effect of Chlorinated Paraffin Nanoemulsion on the Microstructure and Water Repellency of Ultra-Low Density Fiberboard

Cited by 3 publications

References 26 publications

Investigation into Mechanical, Thermal, Flame-Retardant Properties of Wood Fiber Reinforced Ultra-High-Density Fiberboards

Investigation into Mechanical, Thermal, Flame-Retardant Properties of Wood Fiber Reinforced Ultra-High-Density Fiberboards

Facile surface hydrophobization of medium-density fiberboard (MDF) by silver deposition

Cellulose fiber based fungal and water resistant insulation materials

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