The technology for creating of decorative plywood with low formaldehyde emission

Сафин, Р. Р.; Хасаншин, Р. Р.; Shaikhutdinova, Aigul Ravilevna; Зиатдинов, Р. Р.

doi:10.1088/1757-899x/93/1/012077

Cited by 14 publications

(12 citation statements)

References 6 publications

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“…It is known that the content of free formaldehyde in adhesives (urea resins) of the plate is 0.1%. With 70 kg of adhesive substances, the content of free formaldehyde will be 70 g. [7].…”

Section: Resultsmentioning

confidence: 99%

“…It is known that the optimal level of free formaldehyde in resins prepared for use may be in the range of 0.1% to 1.5% [4][5][6][7][8]. A smaller amount of free formaldehyde leads to deterioration of the properties of the resin during storage and use.…”

Section: Methodsmentioning

confidence: 99%

“…Regarding laminated wood, the work of Safin R.R. [7,8] and others on the technology of creating decorative plywood with low formaldehyde emissions is worth mentioning. In these works, the results of studies of the basic properties of plywood, made on the basis of heat-treated veneer, are presented.…”

Section: Introductionmentioning

confidence: 99%

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Chemical Safety of Furniture Products

et al. 2019

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At present, technical regulations are adopted for furniture products of various types, establishing the protection of human health from the influence of harmful substances in the parts and assemblies of wood products and wood materials. The technical regulation adopted the requirements for ensuring chemical safety in the design and manufacture of furniture. The technical regulation is based on the condition of furniture products, eliminating the risk of harm to human health due to exceeding the maximum permissible concentration of harmful chemicals in indoor air. Such substances include free formaldehyde, migrating from the volume of chipboard and glue interlayers when gluing and veneering furniture parts and assemblies. Harmful chemicals are vapor-gas mixtures of solvents, the migration of which is observed from solid lacquer membrane of protective and decorative coatings of parts and components of furniture into the indoor air environment. These chemicals are present in the construction and auxiliary materials in the development of furniture. It is desirable that manufacturers of furniture products determine in advance, at the stage of its design, the level of safety when using certain raw materials. For this purpose, a technique is proposed that allows us to determine the concentration of harmful substances in the air of the premises with the selected materials, design and manufacturing technology of furniture products. Preliminary calculations based on the proposed method, allows us to determine the life of the furniture, in which the harmful substances migrating into the air environment of the premises will be within the permissible concentrations. This allows certifying the manufactured furniture products for chemical safety with the assignment of certain quality parameters. The proposed technique may be useful for enterprises focused on the production of furniture products.

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“…It is known that the content of free formaldehyde in adhesives (urea resins) of the plate is 0.1%. With 70 kg of adhesive substances, the content of free formaldehyde will be 70 g. [7].…”

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Chemical Safety of Furniture Products

et al. 2019

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“…Recycling of wood waste is an important part of the wood processing industry as the benefits of wood can be not only before its processing, but also after it. Due to the high content of organic substances in wood biomass, namely cellulose, lignin and hemicellulose, which are part of cell walls, it is useful and can be further processed, for example, it can be used either as a raw material for hydrolysis or for the production of cardboard, fiberboard and other valuable materials [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

“…However, the raw materials of the hydrolysis industry can also be sawmill and woodworking waste, as well as low-quality wood [3][4][5][6][7][8][9][10][11][12]. A large number of Russian and foreign researchers have worked on wood biomass hydrolysis.…”

Section: Introductionmentioning

confidence: 99%

Hydrolysis as a basis for processing vegetable waste into bioplastics

et al. 2020

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The greening of processing waste from logging and woodworking industries involves measures to prevent the negative impact of production processes on the natural environment and is enabled by the development of resource-saving techniques that minimize harmful emissions to the environment. These production operations are based on hydrolytic cleavage of glycoside bonds of vegetable biomass polysaccharides with the formation of monosaccharides as the main reaction products. Despite the wide range of available methods of processing wood into promising materials (heat treatment, pyrolysis, hydrolysis, etc.), one of the most effective methods is to produce sugars by weak acids hydrolysis. In this regard, the paper describes the technology of high-temperature hydrolysis of pine sawdust with sulfurous acid in order to detect reducing substances (RS) in the hydrolysis residue. The paper considers the effect of sulfurous acid, temperature, and treatment time on the yield of RS.

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