Adsorption characteristics of surfactants on secondary wood fiber surface

The versatility of wood as a raw material is emphasized by the realization that the mass of wood consumed annually in the United States is nearly that of the combined total U.S. consumption of aluminum, plastics, cement, and steel (Figure 1). Partly as a result of the enormous quantities consumed, many wood and paper products also make up significant fractions of the materials disposed in landfills, despite accelerated recycling efforts, notably those of the paper industry. With a target recycle rate of 40% by 1995, the paper industry will make further progress in alleviating some of the disposal problems, but additional efforts to recycle wood and wood-fiber-based materials into other types of products will also be needed. Many of these opportunities have been described. A common denominator in these utilization schemes is to consider how the morphology of secondary wood-based materials may limit their use, and how the morphological characteristics of recycled fiber and wood may influence the properties of the materials produced from them. These considerations suggest, at least partly, a materials science approach to the utilization of recycled fiber and wood, particularly for the fabrication of wood-based composites.

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Effects of Fiber Surface Treatments on the Properties of Wood Fiber–Phenolic Foam Composites

BioResources ◽

10.15376/biores.12.3.4722-4736 ◽

2017 ◽

Vol 12 (3) ◽

Cited By ~ 3

Author(s):

Yufeng Ma ◽

Chunpeng Wang ◽

Fuxiang Chu

Keyword(s):

Wood Fiber ◽

Fiber Surface ◽

Surface Treatments ◽

Phenolic Foam

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Construction and functional effects of a compatible nano-TiO2interface between wood fiber and polypropylene via adopting chemical polyethyleneimine–(3-aminopropyl) triethoxysilane assembly on the fiber surface

RSC Advances ◽

10.1039/c5ra23919b ◽

2016 ◽

Vol 6 (29) ◽

pp. 24154-24163 ◽

Cited By ~ 6

Author(s):

Xianzhu Ye ◽

Hua Wang ◽

Kang Zheng ◽

Zhaofeng Wu ◽

Haifeng Zhou ◽

...

Keyword(s):

Wood Surface ◽

Wood Fiber ◽

Fiber Surface ◽

Polypropylene Composites ◽

Simple Chemical

A simple chemical assembly to construct a compatible nano-TiO2-coating on a wood surface has been reported using polyethyleneimine and (3-aminopropyl) triethoxysilane for recycled wood–polypropylene composites (WPCs).

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Wood fiber surface treatment level effects on selected mechanical properties of wood fiber–cement composites

Cement and Concrete Research ◽

10.1016/s0008-8846(03)00193-5 ◽

2004 ◽

Vol 34 (1) ◽

pp. 59-65 ◽

Cited By ~ 95

Author(s):

Jennifer L Pehanich ◽

Paul R Blankenhorn ◽

Michael R Silsbee

Keyword(s):

Mechanical Properties ◽

Surface Treatment ◽

Wood Fiber ◽

Fiber Surface ◽

Treatment Level ◽

Cement Composites ◽

Fiber Surface Treatment

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Effect of Wood Fiber Surface Treatment on the Properties of Recycled HDPE/Maple Fiber Composites

Journal of Composites Science ◽

10.3390/jcs5070177 ◽

2021 ◽

Vol 5 (7) ◽

pp. 177

Author(s):

Roberto C. Vázquez Fletes ◽

Denis Rodrigue

Keyword(s):

Surface Treatment ◽

Low Cost ◽

Flexural Modulus ◽

Wood Fiber ◽

Impact Resistance ◽

Tensile Modulus ◽

Fiber Surface ◽

Treated Fiber ◽

Fiber Surface Treatment ◽

The Impact

This work reports on the production and characterization of recycled high density polyethylene (R-HDPE) composites reinforced with maple fibers. The composites were produced by a simple dry-blending technique followed by compression molding. Furthermore, a fiber surface treatment was performed using a coupling agent (maleated polyethylene, MAPE) in solution. FTIR, TGA/DTG, and density analyses were performed to confirm any changes in the functional groups on the fiber surface, which was confirmed by SEM-EDS. As expected, the composites based on treated fiber (TC) showed improved properties compared to composites based on untreated fiber (UC). In particular, MAPE was shown to substantially improve the polymer–fiber interface quality, thus leading to better mechanical properties in terms of tensile modulus (23%), flexural modulus (54%), tensile strength (26%), and flexural strength (46%) as compared to the neat matrix. The impact resistance also increased by up to 87% for TC as compared to UC. In addition, the maximum fiber content to produce good parts increased from 15 to 75 wt% when treated fiber was used. These composites can be seen as sustainable materials and possible alternatives for the development of low-cost building/construction/furniture applications.

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Micro and Macromorphology of Recycled Fiber and Wood

MRS Proceedings ◽

10.1557/proc-266-47 ◽

1992 ◽

Vol 266 ◽

Cited By ~ 5

Author(s):

Douglas D. Stokke

Keyword(s):

Wood Fiber ◽

Morphological Characteristics ◽

Wood Products ◽

Raw Material ◽

Wood Fibers ◽

Fiber Morphology ◽

Fiber Plastic ◽

Recycled Fiber ◽

Secondary Wood ◽

Composite Properties

AbstractWood is a major industrial raw material, with U.S. consumption approaching that of aluminum, plastics, cement, and steel combined. Partially as a result of the magnitude of wood and wood products in use, these products constitute a substantial portion of the solid waste stream. In order to reduce the amount of wood and wood fiber disposed in landfills, efforts to recycle these materials into useful products such as structural composites are needed. The success of such conversion depends in part on knowledge of the morphological characteristics of various sources of secondary wood and wood fibers, and the influence of wood element morphology on composite properties. An overview of wood and fiber morphology representative of major sources of secondary material is provided, with a discussion of how these morphological features may influence the properties of conventional wood composites and wood fiber/plastic composites.

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The impact of wood fiber surface modification on physical properties of wood-polymer composites

Tehnika ◽

10.5937/tehnika1605659p ◽

2016 ◽

Vol 71 (5) ◽

pp. 659-662

Author(s):

Srdjan Perisic ◽

Milos Petrovic ◽

Andjelika Bjelajac ◽

Aleksandar Marinkovic ◽

Dusica Stojanovic ◽

...

Keyword(s):

Surface Modification ◽

Physical Properties ◽

Polymer Composites ◽

Wood Fiber ◽

Fiber Surface ◽

Wood Polymer ◽

Wood Polymer Composites ◽

The Impact

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THERMAL DEGRADATION AND MORPHOLOGICAL ASPECTS OF FOUR WOOD SPECIES USED IN LUMBER INDUSTRY

Revista Árvore ◽

10.1590/0100-67622016000500018 ◽

2016 ◽

Vol 40 (5) ◽

pp. 941-948 ◽

Cited By ~ 10

Author(s):

Matheus Poletto

Keyword(s):

Thermal Degradation ◽

Wood Species ◽

Wood Fiber ◽

Eucalyptus Grandis ◽

Fiber Surface ◽

Pinus Elliottii ◽

Degradation Process ◽

Lumber Industry ◽

Scanning Calorimetry ◽

Morphological Aspects

ABSTRACT The aim of this work was characterize four wood waste samples from lumber industry in order to obtain previous information about structure and properties of wood before use it as a biofuel or as reinforcement in composite formulations. The influence of wood components on the thermal degradation stability of different wood species has been investigated using thermogravimetry, differential scanning calorimetry and scanning electron microscopy. Four wood species, Eucalyptus grandis (EUG), Pinus elliottii (PIE), Dipteryx odorata (DIP) and Mezilaurus itauba (ITA), were used in this study. The results showed that higher extractives contents may form a thin film on the wood fiber surface which can accelerate the degradation process and reduce the wood thermal stability

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THEORETICAL ASPECTS OF THE DISPOSAL OF WOOD FIBER WASTE IN AERODYNAMIC MEDIA

chemistry of plant raw material ◽

10.14258/jcprm.2020048188 ◽

2020 ◽

pp. 475-484

Author(s):

Natal'ya Geral'dovna Chistova ◽

Venera Nurullovna Matygulina

Keyword(s):

Specific Surface ◽

Technological Process ◽

Wood Fiber ◽

Mechanical Effect ◽

Chemical Additives ◽

Grinding Method ◽

Dry Grinding ◽

Secondary Wood ◽

Environmental Feasibility ◽

Physical Phenomena

The paper discusses the results of a study on the use of fundamentally new equipment (rotary knife mill) for the preparation of secondary fiber waste in the air and the possibility of their full use in finished products for various purposes. In order to justify the effectiveness of the preparation and the feasibility of using secondary wood fiber semi-finished products by a dry grinding method, the physical phenomena and regularities of the mechanism for the preparation of secondary wood fiber semi-finished products by the proposed method are determined and investigated, which characterize the technological process of preparation in air and their possible future use as semi-finished products or in the manufacture of finished products products. The process of dissolution of wood fiber waste was studied, the mechanical effect on wood fiber waste due to face-cross cutting (cutting, crushing, flattening, breaking) and aerodynamic phenomena (breaking, collision, dissolution, fibrillation), contributing to the formation of external and internal fibrillation of the secondary wood fiber, is described. increase in specific surface in the absence of high temperatures and pressure, without the addition of chemical additives, without the use of water and steam. The performed studies allow us to propose a new method and system for the preparation of wood fiber waste by dry grinding, justifying their economic and environmental feasibility.

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