Availability and Applicability of Wood and Crop Residues for the Production of Wood Composites

Abstract

Due to high levels of volatility in both the agricultural and the forestry commodity markets, specifically, of timber and agricultural crops, it is important to identify the risks associated with the stability of supplies necessary for the production of composite materials in the Czech Republic. This study aims to accurately estimate the availability of selected raw materials that contain lignocellulose over the next 20 years. In addition, their suitability for the production of composite materials is assessed based on their physical properties. Furthermore, in the event of scarcity involving timber in the European Union, recycled wood and post-harvest residues could replace conventional raw materials in wood-based composites such as particleboards and chipboards. The viable potential of Czech forests is predicted to be between 740 and 750 million cubic meters of timber. For agricultural crops, it is estimated at 0.9 million hectares of wheat and 0.5 million hectares of canola under the current EU biofuel policy and at 0.4 million hectares if this policy is removed. According to moisture and fibre analyses carried out in our study, the most suitable candidate for wood-based composites production is soft wood.

Revisión sistemática del comportamiento convencional y reológico del biocompuesto asfalto-biomasas producidas

“…La biomasa es la materia orgánica producto de los vegetales, animales, microorganismos [49], residuos agroindustriales y urbanos, representando el 10%-14% como industria suministradora anual de energía en el mundo equivalente a 1.25 millones de toneladas de petróleo [50] y las grandes industrias lo emplean para producir bioasfalto [51].…”

Development of sustainable cellulose‐based composite of polypropylene reinforced by recycled microfibrillar poly (ethylene terephthalate)

“…[12][13][14][15] The introduction of natural fibers into the polymer matrix improves the moisture resistance and degradation ratio of the resultant materials due to the availability of wood hydroxyl groups favor water absorption and accumulation in its cavities. [16][17][18][19][20] Eventually, it increases the possibility of environmental degradation of plastics and turns the final composite into a biodegradable bio-composite. 9,21,22 However, the major drawbacks of worldwide application of WPC, the brittleness and higher weight compared with natural wood, still remain one of the main researchers' interests.…”

“…Currently, WPC are used in various applications such as floor coverings, body and roof of buildings, door and window frames, automotive industries, home appliances, and so forth 12–15 . The introduction of natural fibers into the polymer matrix improves the moisture resistance and degradation ratio of the resultant materials due to the availability of wood hydroxyl groups favor water absorption and accumulation in its cavities 16–20 . Eventually, it increases the possibility of environmental degradation of plastics and turns the final composite into a biodegradable bio‐composite 9,21,22 .…”

A Qualitative Assessment of the Specific Woody Biomass of Fruit Trees

“…An evaluation of wood and crop residues for wheat straw and canola straw, according to availability in the Czech Republic, lignocellulosic raw material, moisture, and fibre properties, was realized by Procházka et al [6], and the most suitable candidate for wood-based composites was identified as soft wood. Regarding the evaluation of the fruit trees as solid biomass for briquettes production, there are studies on guava wood that present negative results, as the measured Sulphur content (0.063%) and ash content (3.74%) exceeded the allowed limits for graded wood briquettes [7].…”