Analysis of Attributes that Become Consumer Preferences in Choosing Indonature Table Furniture Products

Ud. Indonature is a company engaged in furniture, especially coffee table located on the island of Lombok, West Nusa Tenggara. Furniture made of solid wood such as Teak and Trembesi wood. In recent years there has been a decrease in the company’s turnover therefore it takes product innovation to increase sales. With the need to develop coffee table furniture products more clearly, researchers decided to conduct research on Attribute Analysis that Becomes Consumer Preferences in Choosing Indonature Table Furniture Products. This study aims to find out and analyze the combination of attributes that become consumer preferences in purchasing Indonature coffee table products and to know and analyze the most important coffee table attributes for Indonature consumers. The problem formulation in this study is, firstly, what combination of attributes are the consumer preference in buying coffee table into nature products and the second is what are the most important attributes of coffee table products for indonature consumers. The results of conjoin analysis showed that the most preferred and most important combination according to consumers is made of trembesi wood material with arch form, has a natural wood finishing and rustic design.

Synthesis and properties of nanosized ZnO/wood composite

The aim of the study was to synthesise a ZnO/silver birch wood (Bétula péndula) nanocomposite and evaluate its physical and mechanical properties in comparison with an unmodified natural polymer.Using the sol-gel method, we synthesised almost spherical impurity-free zinc oxide nanoparticles with a predominant particle size of about 20 nm. Amorphous hydrated Zn(OH)2 was impregnated into the wood material at the gel formation stage. It resulted in the reaction of zinc hydroxide decomposition with the formation of ZnO nanoparticles in the wood as a nanoreactor.The hydrophobic properties of the surface of ZnO/silver birch wood nanocomposite improved significantly (the contact angle of wetting doubled). Its moisture and water resistance decreased (2-5 times and 30%, respectively). The nanocomposite also showed less swelling in the radial (8-10 times) and tangential (2.6-10 times) directions in comparison with natural wood.

Comparación del ACV de 2 estibas construidas con madera natural y madera plástica en Simapro 8.4.0

Se realizó una comparación del análisis de ciclo de vida conceptual para 2 estibas construidas con madera natural (melinna) y madera plástica (100% polietileno) respectivamente, usando el software SIMAPRO 8.4.0.0 en su versión DEMO 2017 la cual usa como norma la UNE EN ISO 14040. Se determinó el alcance del estudio de cada estiba y su análisis de inventario teniendo en cuenta la disponibilidad de actividades en SIMAPRO 8. Se analizaron diferentes factores para cada estiba, los cuales fueron: caracterización y evaluación de daño, y de manera comparativa los factores: salud humana, ecosistemas y recursos. Los resultados arrojados del análisis comparativo afirmaron que las estibas de madera natural afectan en un 100% a la salud humana, y que por el contrario las estibas de madera plástica afectan un 2%, hablando de los ecosistemas, las estibas naturales afectan un 100% y las construidas con madera plástica un 2%, y por último, en el componente de recursos, las estibas naturales afectan en un 100% y las estibas plásticas un 47%. The objective of the study reflects a comparison of the conceptual life cycle analysis for 2.00 pallets built with natural wood (melinna) and plastic wood (100% PET), using the SIMAPRO 8.4.0 software in its DEMO 2017 version under the UNE standard -EN ISO 14040. The methodology used was experimental and descriptive where there was manipulation of variables such as: flexural strength, moisture content and natural durability to degrading agents for the determination of social, economic and environmental aspects. The results of the comparative analysis affirmed that the pallets of natural wood affect human health by 100%, unlike the pallets of plastic wood, which affect life in ecosystems by 2%. For the conservation of Biodiversity, natural pallets affect 100% and plastic pallets 47%. Plastic wood, compared to natural wood, has several benefits such as greater impermeability, easy cleaning, greater safety (due to chipping), low moisture absorption.

ENERGY SAVING OF WOOD DUE TO ITS MODIFICATION

Modified wood is wood that is improved with special modifiers in order to increase its strength, durability and water-, bio-, fire- and corrosion resistance, which, unlike natural wood, makes it more resistant to various environmental factors. This wood is good to use in construction, and it will be effective for further development, as the buildings will be used longer, and less likely to be subject to repair and reconstruction, which will reduce deforestation. The most popular methods of modification are thermomechanical modification with preliminary steaming of wood, its heating, or with preliminary impregnation with mineral oils; thermochemical modification; chemical modification; radiation-chemical modification. Each type of the above modifications differs in its properties, and also have their own impact on a particular type of wood. The most common and most effective method of modification is achieved by thermomechanical processing. Since it is when the wood is heated, after the introduction of the necessary modifiers into it, the polymers begin to heat up, due to which the vessels of the wood harden, which affects its density. To avoid the destruction of wood, it is very important to monitor the temperature and prevent it from reaching high heating levels.

THE USE OF NANOSCALE ZINC OXIDE IN WOOD-BASED COMPOSITIONS

The aim of this work was to study compositions based on vegetable oil waste and nanoscale zinc oxide particles for processing natural wood. The sol-gel method was used for the synthesis of zinc oxide nanoparticles. The synthesized zinc oxide nanoparticles did not contain impurities and had a shape close to spherical, and their size did not exceed 20 nm. We used freshly prepared suspensions of zinc oxide nanoparticles in used vegetable oil with their content in the amount of 0.1, 0.5 and 1.0 wt. parts per 100 parts of oil. The wood was treated by hot-cold impregnation. The tests were carried out on samples of birch and pine wood of standard sizes. In the modified samples, the wetting angle, moisture and water absorption, as well as their swelling were determined. It is shown that the use of zinc oxide nanoparticles in compositions based on vegetable oil waste can significantly reduce the moisture and water resistance of wood and reduce its swelling. The optimal dosages of the nanopowder introduced into the used vegetable oil and the conditions of impregnation were selected. The compositions used on the basis of vegetable oil waste are characterized by environmental safety, and the resulting wood samples had an improved appearance.

High-Permeability Wood with Microwave Remodeling Structure

This paper presents the development of a microwave puffed wood (MPW) with novel and unique structural features in its internal structure that are based on natural wood (NW). The focus of the research was on the comprehensive visualization of the structural characteristics of MPW from the macroscopic to the microscopic scale followed by an exploration of its impregnation capabilities. The results showed that the volume of MPW increased by about 9% compared to NW due to the presence of a large number of cracked cavities. The CT images indicated that there was a significant difference between the macroscopic cracks produced by microwave processing and the natural cracks in the wood. The mercury intrusion test results showed that macro-pores increased while the micro-pores decreased in the MPW compared to in the NW. The MPW showed good fluid permeability and liquid absorption performance. The phenolic resin penetration rate of the MPW was about 20 times that of the NW, and the material absorption was more than 2 times that of the NW. The crack space enabled the MPW to serve as a fluid transportation and a storage warehouse. MPW is a super container based on natural materials. It has broad potential in more fields, such as in wood composite materials.

PROTECTIVE WOOD TREATMENT WITH AN OLIGOMER CONTAINING STYRENE UNITS

Currently, much attention is paid to the protective treatment of wood materials. This allows you to protect wood from adverse factors and extend the service life of products based on it. At the same time, not a little, an important criterion is the ratio of the price of the protective composition and its quality. The article discusses the possibility of using an oligomer for the protective treatment of natural wood, obtained on the basis of by-products of the production of polybutadiene and modified with secondary polystyrene. Considering the fact that this waste has not found its application, its use makes it possible to obtain not only valuable and affordable compositions based on it, but also to solve a number of environmental problems. For the modification, an oligomer with a bound styrene content of about 50% was used. The process was carried out at 200°C in the presence of a desiccant. At high temperatures and in the presence of atmospheric oxygen, destruction of both oligomer and secondary polystyrene occurs. The resulting destruction products interact with each other with the formation of new macromolecules containing an increased amount of styrene groups and the appearance of functional groups containing oxygen in the polymer chains. Protective treatment of natural wood with the obtained impregnating compounds allows to reduce water absorption and swelling of birch samples. This treatment allows you to extend the life of wood products.

PLANNING OF EXPERIMENTAL STUDIES WITH THE PURPOSE OF DEVELOPING THE MODE OF FACING DSTP WITH A THIN SLED VENEER OF WOOD MAHAGONI

The modern market offers mainly furniture made from traditional materials: chipboard and fiberboard, faced with synthetic materials (films, plastics). However, despite the huge variety of synthetic materials, they cannot convey the original texture, color of natural wood. Furniture made of natural wood and furniture made of panel materials, faced with sliced veneer, are classified as premium furniture due to the high cost and shortage of valuable wood species. To reduce the cost of production, it is proposed to use thin sliced and peeled veneer with a thickness of 0.4 mm. The problem is that the most common veneering defect is glue leakage, which depends on many factors, as well as the lack of clear recommendations for the choice of veneering modes. In this regard, the problem of developing a mode for veneering chipboards with thin sliced veneer of mahogany wood is relevant and requires research. The paper identifies variable factors and factors that remained constant during research. The conditions for conducting experimental studies are also given. To develop a methodology for conducting experimental studies, the method of uniform- rotatable planning of a second-order experiment was used.