摘要:
Provided is a method for mineralizing wood, wooden material and other cellulosic material comprising: i) a first impregnation step, comprising a fist impregnation of wood, wooden material or other cellulosic material with an aqueous solution of potassium methyl siliconate or potassium oxalate, ii) a first drying step, comprising drying of the wood, wooden material or other cellulosic material, iii) a second impregnation step, comprising a second impregnation of wood, wooden material or other cellulosic material with an aqueous solution of calcium chloride or C0 2 (gaseous or fluidic), and iv) a second drying step, comprising drying of the wood, wooden material or other cellulosic material. Due to the novel mineralization method, the water insoluble products of the impregnation steps penetrate the material deeply and are generated in situ within the cells themselves, in the cell walls and pits and between the xylem cells ( primarily fibres and sklereids). The mineralized products are protected against fungi, improved in their biological resistance, moisture and weather resistance and exhibit a reduced flammability. The products are non-toxic and environmentally safe.
摘要:
Die Erfindung betrifft Mischungen, enthaltend als Komponente (A) Ammoniumpolyphosphat und als Komponente (B) eine lösliche ionische Verbindung, die Sulfat enthält und/oder in der Lage ist Sulfat-Ionen freizusetzen. Die Erfindung betrifft ebenfalls ein Verfahren zur Herstellung solcher Mischungen und ihre Verwendung.
摘要:
The invention relates to a flame-retardant wooden substrate. According to the invention, the substrate is provided with a coating of and/or is impregnated with a flame retardant, selected from the group consisting of organic halogen compounds that are liquid at room-temperature and organic phosphorus- or boron compounds, and with a lacquer coat applied to said coating or impregnated substrate.
摘要:
An apparatus and method for forming a fire retardant-treated fiber product is provided, A first nip is defined by a pair of juxtaposed processing members, and is configured to receive a fiber product therethrough. At least one of the processing members comprises an incisor member extending from a processing surface thereof, and interacting with and altering a surface of the fiber product directed through the first nip. A second nip is defined by a pair of juxtaposed compression members, and is configured to receive the fiber product therethrough. Compression surfaces of the compression members cooperate to compress the surface of the fiber product within an elastic range associated therewith. At least one of the first and second nip is arranged to receive a fire retarding solution such that the fiber product is interacted therewith at least upon entering the at least one of the first and second nip.
摘要:
The invention pertains to a method of manufacturing a fire proof board from strands of wood, the method comprising the following steps in the given order: (a) providing strands of wood, (b) immersing the strands of wood in a watery solution of a flame retardant chemical composition, (c) separating the strands of wood from each other, (d) at least in part drying the strands of wood, (e) applying an adhesive to the strands of wood, and (f) forming a board of a predetermined shape from the strands.. The invention furthermore pertains to a board formed by a plurality of strands of wood that are compressed and bonded together with an adhesive, wherein the board further comprises a flame retardant chemical composition, said composition comprising a phosphate compound.
摘要:
An additive comprising a phosphazene compound that has at least two reactive functional groups and at least one capping functional group bonded to phosphorus atoms of the phosphazene compound. One of the at least two reactive functional groups is configured to react with cellulose and the other of the at least two reactive functional groups is configured to react with a resin, such as an amine resin or a polycarboxylic acid resin. The at least one capping functional group is selected from the group consisting of a short chain ether group, an alkoxy group, and an aryloxy group. Also disclosed are an additive-resin admixture, a method of treating a wood product, and a wood product.
摘要:
Preservative composition for various materials and method of preserving the same is disclosed. The preservative composition includes at least one silane-containing material and at least one hydrocarbon solvent containing molecules of at least five carbon atoms.
摘要:
A method and apparatus for formulating and controlling concentrations of deactivating chemicals in a gas mixture inside a chamber. The gas mixture may include chemical components that are deactivating chemicals, as well as chemical components that are base chemicals, acting as a diluent for the deactivating chemical, or as a vehicle or carrier for the deactivating chemical. A capacitor is exposed to the gas mixture, wherein the gas mixture comprises a dielectric material between the plates of the capacitor. Permittivity of the dielectric is affected by the relative concentrations of the chemical components, and thus a measurement of the capacitance is used to determine the concentration levels of multiple chemical components in the gas mixture.
摘要:
A fire retardant composition that is halogen-free comprises an aqueous solution of an amine, a borate and a phosphate. The claimed composition is effective in providing wood-based panels like medium- or high-density fibreboards with high fire resistance without a diminution in their physical and mechanical properties.