Among different organic fillers, the chemical composition of Syzygium aromaticum, commonly known as cloves, has great potential a sustainable reinforcement for polymeric materials. In study, grounded cloves were used cellulosic filler novel polyurethane (PU) composite foams. Soybean oil-based PU foams successfully reinforced with concentrations (1, 2, and 5 wt%) clove filler. examined by rheological behavior, processing parameters, cellular structure (scanning electron microscopy analysis),...

Currently, there is great demand to implement circular economy principles and motivate producers of building materials integrate into a closed loop supply chain system improve sustainability their end-product. Therefore, it interest replace conventional raw with inorganic or organic waste-based filler-type additives promote the close chain. This article investigates possibility bottom waste incineration ash (WA) particles be used as flame retardant replacement increase fire safety thermal...

Water-blown biopolyurethane (bioPUR) foams are flammable and emit toxic gases during combustion. Herein, a novel approach suggested by the current study is to use different amounts of lignin waste (LigW), which increases thermal stability delays flame spread sodium silicate (LG), has foaming ability at high temperatures acts as protective layer fire. However, there have been no studies carried out investigate synergy between these two materials. Therefore, ratios, namely 1/1 1/2 LigW/LG,...

Bio-sourced materials combined with a polymer matrix offer an interesting alternative to traditional building materials. To contribute their wider acceptance and application, investigation into the use of wood-polymer composite boards is presented. In this study, biocomposite (BcB) for industry are reported. BcB fabricated using dry incorporation method corn starch (CS) hemp shiv (HS) treatment water at 100 °C. The amount CS size HS fraction evaluated by means compressive bending tensile...

Currently, polyurethane foam producers come across the several problems when petroleum-based polyols are replaced with low functionality biomass, or waste-based, polyols. In addition, dilemma is intensified regulations that require full partial replacement of blowing agents can cause high ozone depletion alternatives like water, which causes formation CO2. Therefore, these gases diffuse out so quickly polymeric cell walls cannot withstand pressure, consequently causing huge dimensional...

Depletion of fossil fuels resources and large amounts pollutants emitted to the atmosphere enforce searching for alternative renewable resources. One these is fibred hemps. The main components obtainable during processing hemp biomass – fibres shives, they are characterised by low density porous structure; thereby, suitable production thermal insulating composites. research based on investigation two types composites produced from shives as well biologically divisible binders. covers impact...

For the production of traditional building materials, excavated natural resources are used. The process such materials requires high-energy demands, wherefore, high amounts CO2 gases, which have a great impact on climate change, emitted. Only small part is effectively recycled and reused. Generally, they transported to landfills, rapidly expand may pollute soil, groundwater air. Currently, attention paid novel materials. aim use as less possible replace them by renewable resources....

Textile waste is formed in various stages, from the preparation of raw materials to utilisation textile products. One sources production woollen yarns. During yarns, generated during mixing, carding, roving, and spinning processes. This disposed landfills or cogeneration plants. However, there are many examples being recycled new products produced. work deals with acoustic boards made was yarn processes up stage. Due parameters, this not suitable for further use work, composition yarns...

In past ten years area of green technologies and materials was the most growing industry sector in world.It is related with global warming, air pollution energy saving.Building intensively increased high consumptions.The use renewable or recyclable can reduce these problems.In current work, thermal insulating from hemp shives corn starch were investigated.Structures various fractions analyzed.Different sized by two indicators bulk density conductivity compared.Composite prepared.Different...

In the current study, high-strength boards for construction industry were developed from renewable natural resources, fibrous hemp shives, and corn starch. During research, influence of composition mixture, processing raw materials, technological parameters on operational properties board evaluated. The binding material water content molded was It established that rational amount starch is 15% mass 10%. has been with proper selection forming board, it possible to avoid internal...

The purpose of this study was to evaluate the moisture and flammability characteristics lightweight concrete with different aggregates amounts cement according criteria. properties specimens were evaluated by coefficient water absorption due capillary action, short-term absorption, vapour permeability. Short-term correlated density specimens, depending on soaking time, amount cement, type aggregate. values diffusion resistance factor estimated based aggregate, density, porosity. porosity...

Loose-fill thermal composite insulation produced from surface-modified wood scobs has been explored as a potential fire-resistant material for building envelopes. This work involves fire resistance behavior comparisons between four coating systems consisting of liquid glass, glass-tung oil, glass-expandable graphite, and oil-expandable graphite. The techniques thermogravimetric differential analyses, gross heat combustion via calorimetric bomb, cone calorimetry, SEM imaging char residues,...

This research aims to find suitable processing methods that allow the reuse of wood waste produce waste-based engineered logs for construction meet strength requirements structural timber sawn softwood. Three types were examined: packaging (W), from and furniture industry (PLY), door manufacturing (DW). The was additionally crushed sieved, granulometric composition shape particles evaluated. microstructure surface also analysed. A three-component biopolyurethane adhesive used bind particles....

In this study, tung tree and linseed drying oils, as well semi-drying hempseed oil, were analyzed the protective coatings for biocomposite boards (BcB) made of hemp shives, corn starch binder, performance-enhancing additives. The hydrophobization formed at 40, 90, 120 °C temperatures, respectively. physical-mechanical properties such compressive strength, thermal conductivity, dimensional stability, water absorption, swelling tested. addition, scanning electron microscopy (SEM) was employed...

Raw sheep wool preparation processes are closely related to the use of environmentally harmful raw materials. To solve this problem, alternative ways cleaning wool, often called friendly, being sought. In research, possibilities using Lithuanian for production thermal insulation materials were investigated. For purpose, 4 tons different breeds was selected from various breeders' farms. Sources impurities in identified and amount fat assessed. After initial re-selection, washed modes with...

The current study presents the results of monitoring behavior loose-fill thermal insulating material for buildings made wood scobs (WS), which were coated with one, two, and three component-based coatings from liquid glass (LG), tung oil (TO), expandable graphite (EG). conductivity samples in dry state under normal laboratory conditions, short-term water absorption by partial immersion, surface wettability, vapor permeability evaluated, regression equations describing variations numerical...

In the current paper, thermal insulation material from wool of sheep grown in Lithuania is analyzed. Three types were produced: horizontal orientations, corrugated individual layer obtained, and mats. The 50 mm thick products prepared their main performance characteristics evaluated: thickness changes, conductivity, tensile strength, short-term water absorption, flammability. Changes materials determined under different loads, dependences on density obtained. Thermal conductivity was...