Methods for producing structural materials from lumber are provided. The methods use an oxygen pre-treatment or a carbonate pre-treatment followed by densification via thermal compression to produce structural materials with strong mechanical properties. The pre-treatments are able to partially delignify the lumber without substantially adversely affecting the mechanical properties of the subsequently densified wood.

A process for producing a lignocellulose-containing, plastic-coated and printable molding (26), in particular in sheet form, comprising the steps of: a) producing a layer (A, B′) containing lignocellulose-containing particles according to the shape of the molding to be produced (26); b) applying a layer (C) of particles containing electron beam-reactive thermoplastic onto the layer produced according to the preceding feature; c) heating the layers (A, C) produced according to the preceding features such that thermoplastic particles melt into the layer containing lignocellulose-containing particles (Cs); d) pressing the layers heated according to feature (1c); and e) irradiating the layers pressed according to feature (1d) with electrons in the energy range from 1 MeV to 10 MeV. The process is for example elucidated with reference to an MDF sheet one-sidedly provided with a polymer layer.

A method for producing an ultra-stable and enhanced solid wood flooring for under-floor heating via surface compression technique includes: subjecting, while subjecting a solid wood to surface compression and enhancement, the solid wood to primary stabilization treatment by controlling a temperature of a hot pressing plate to obtain a compressed enhanced solid wood; putting the compressed enhanced solid wood into a heat treatment tank; and subjecting the compressed enhanced solid wood to secondary stabilization treatment by controlling a pressure and a temperature of steam or air in the heat treatment tank and a treatment time to obtain a finished product. The ultra-stable surface-compressed enhanced solid wood flooring produced by the method features high dimensional stability, low set-recovery after water absorption, and desired moisture and heat resistance.

A treatment process and wood products thereof including a product formulation of a single phase solution combining a wood preservative (durable component) with a Flame Retardant component (FR) to produce a durable Flame Retardant (dFR) treated wood product. The durable component comprises a range of copper based and non-copper based wood preservatives, while the FR component comprises alkali metal silicates and alkali metal aluminate compounds. The dFR working solution undergoes chemical impregnation (treatment) followed by a heat (fixation) process step that locks the chemical into the wood making it non-leachable. The dFR treated wood products are tested for their enhanced fire performance properties. When heated, wood undergoes thermal degradation and combustion producing gases, vapors, tars and chars. Using a cone calorimeter burn test method, dFR treated wood products show a significant reduction in heat release rate, mass loss rate and smoke generated values compared to untreated radiate pine.

The present disclosure relates to wood template-supported phase change material (PCM) composites having thermal energy storage applications. A wood template-supported PCM composite may include a wood template that has had at least a portion of its xylan and/or lignin removed and saturated with a PCM. The PCM may be stabilized with a cross linkable network for improved infiltration into the wood template. The wood template-supported PCM composite may be formed by extracting xylan and/or lignin from the wood to create a wood template, densifying at least a portion of the wood template, and inserting a PCM into the wood template.

A wooden drumstick that is treated by direct heating by exposure to a flame to improve hardness characteristics by altering the state of fibers in an outer layer of the drum stick relative to inner fibers below the outer layer. A method of manufacturing a treated drumstick includes selecting a wooden starting material, forming a drumstick profile from the wooden starting material, and exposing the drumstick profile directly to a flame.

A continuous wood modification by heat process, that comprises: stacking wooden boards on a trolley at intervals; exerting pressure on said wooden boards; transferring said wooden boards to a heating kiln, pre-heated by microwave and hot air circulation, that has a water vapor flow of 2-5 meter3/hour, a temperature range of 60-100° C., and a humidity range of 50%-100%; transferring said wooden boards to a shallow drying kiln, pre-heated by microwave and hot air circulation, that has a drying temperature of 100-120° C.; transferring said wooden boards to a deep drying kiln, pre-heated by microwave and hot air circulation, that has a drying temperature of 120-120° C., an oxygen content range of 1-10%, and a water vapor flow rate of 1-10 m3/hour; transferring said wooden boards to a carbonization kiln, pre-heated by microwave and hot air circulation, that has a temperature range of 120-180° C., an oxygen content range of 1%-5%; transferring said wooden boards to a slow cooling kiln, that has a temperature range of 120-130° C., and an oxygen content range of 1%-10%; transferring said wooden boards to a fast cooling kiln, that has a temperature range of 90-100° C.; transferring said wooden boards to a rewetting kiln, that has a humidity range of 50%-100%; providing water vapor to said rewetting kiln; while being in said rewetting kiln, and when a temperature range of said wooden boards is 40-60° C., and a moisture content of said wooden boards is 6%-10%, transferring said wooden boards out of said rewetting kiln; wherein each of said heating kiln, said shallow drying kiln, said deep drying kiln, said carbonization kiln, said slow cooling kiln, said fast cooling kiln, and said rewetting kiln comprises a fan, a partition board, a shunt hood, and an exhaust port; wherein said partition board divides an interior of each of said heating kiln, said shallow drying kiln, said deep drying kiln, said carbonization kiln, said slow cooling kiln, said fast cooling kiln, and said rewetting kiln into an upper chamber and a lower chamber; wherein said shunt hood is disposed in said upper chamber; wherein said fan, said shunt hood, and said lower chamber are connected and form a air channel; wherein said lower chamber comprises a shunt plate, disposed along left and right walls of a kiln; wherein said shunting plate comprises a plurality of sieve holes that are disposed gradually dense from top to bottom; wherein one end of said shunt plate is connected with said partition board and the other end is connected with the bottom of a kiln.

The present invention describes a method for thermo-treatment of wood, where said method comprises the following steps: a) selecting the wood to be as free from knots as possible b) introducing the wood to a temperature increase up to approximately 173° C.; c) maintaining the wood at an ambient temperature of 173° C. for 3-5 hours; d) decreasing the temperature to approx. 20° C.; e) introducing the wood into an autoclave wherein a mixture of linseed oil and mineral oil is applied to the wood, and allowing the mixture to penetrate the wood f) retrieving and storing the treated wood. Furthermore a timber member made with wood treated according to the method is disclosed.

A wood-thawing installation for thawing frozen pieces of raw timber includes a thawing channel. The thawing channel has an entrance and an exit for the pieces of raw timber for the raw wood pieces to enter and exit the thawing channel. A plurality of nozzles are located on the thawing channel to introduce a thawing liquid into the thawing channel. A first section of the thawing channel and a second section of the thawing channel are located between the entrance and the exit. The exit is closer to the second section than to the first section. At least one of the nozzles is located in the first section and connected via a pumping line to a suction opening located in the second section. Further disclosed is a method for thawing frozen raw wood pieces.

The invention relates to a process for forming a wood-base product comprising the steps of a) providing particles of wood, b) resinating the particles of wood with a binder, c) compressing the resinated particles of wood to form a wood-base product, wherein before, during or after step b) the particles of wood and/or the binder are brought into contact with a broken dispersion. The invention also relates to the use of a polyfunctional compound as demulsifier for breaking a wax-containing dispersion containing an aqueous phase as continuous phase, a disperse phase containing wax and at least one emulsifier. The invention further relates to a broken dispersion for hydrophobicizing lignocellulose-containing material, wherein the broken dispersion is obtainable by mixing at least mixed a wax-containing dispersion A) containing the following components: i) at least one aqueous phase as continuous phase, ii) at least one disperse phase containing wax, and iii) at least one emulsifier, with a demulsifier B) having at least one functional group. The invention additionally relates to a two-component system (kit-of-parts) containing at least two components A and B: a wax-containing dispersion A) containing at least one aqueous phase as continuous phase, at least one disperse phase containing wax, and at least one emulsifier, and a demulsifier B) having at least one functional group for breaking the wax-containing dispersion.