A press pad for a hydraulic heating press arrangement, the press pad including a fabric, wherein the fabric is formed by warp threads in a warp direction and weft threads in a weft direction, wherein the warp threads and the weft threads are woven together to form the fabric, and wherein functional threads run in the warp direction or in the weft direction and are connected with the fabric so that a thickness of the fabric in an effective portion of the functional threads differs from a thickness of the fabric outside of the effective portion of the functional threads.

The present invention discloses a method for quick hot-press forming of laminated wood. The method includes: drying a machined small wood material to a moisture content of 5-8 wt %; gluing the dried small wood material, and assembling and laying the dried small wood material to be a square material or a sheet material, where an adhesive for the gluing is a water-soluble adhesive having a solid content of 45-60 wt %; clamping the square material or the sheet material through a three-dimensional metal clamp; sending the clamped square material or sheet material together with the clamp into a microwave heating machine for microwave heating to obtain a formed laminated wood, where the time from the gluing to the entry into the microwave heating machine is controlled to not exceed 15 min. According to the present invention, a glued part that needs to be heated can be heated quickly, precisely and effectively, the gluing strength and production efficiency of the laminated wood can be significantly improved, and the cost of production energy consumption is reduced.

A method for manufacturing a cellulose product, comprising the steps: dry forming a cellulose blank in a dry forming unit; arranging the cellulose blank in a forming mould; heating the cellulose blank to a forming temperature in the range of 100° C. to 200° C.; and pressing the cellulose blank in the forming mould with a forming pressure of at least 1 MPa.

A device and method for forming a hollow wallboard, in particular, for continuously forming a wood/bamboo molded hollow wallboard with embedded reinforcing ribs, feature a simple process, with high production efficiency, and continuous production at low production cost. The method for continuously forming a wood/bamboo molded hollow wallboard with embedded reinforcing ribs includes: 1) driving a punch in a molding cavity by an actuating mechanism to move up and down in a straight line along vertical guide rails, so that the punch moves relative to a plurality of inner molding tubes and a plurality of reinforcing ribs which are vertically provided in the molding cavity and are in a movable fit with the punch; and allowing a heating mechanism to heat both an inner wall of the molding cavity and a wall of the inner molding tubes.

The invention discloses an infinite-arbitrary-length bamboo chip integrated material. The bamboo chip integrated material is formed by a plurality of lengthened bamboo chips which are glued and overlaid; each lengthened bamboo chip is formed by a plurality of bamboo chip units which sequentially and continuously mesh and are butted; sharp teeth and grooves are formed in the two ends in the length direction of the bamboo chip units, wherein the sharp tooth of each bamboo chip unit and the groove of the corresponding bamboo sheet unit are matched to form a meshing butt-joint part, and the meshing butt-joint parts of the adjacent lengthened bamboo chips are arranged in a staggered mode; and each bamboo chip unit has a thickness of 4-12 mm and a width of 15-50 mm. The invention further provides a manufacturing method of the bamboo chip integrated material, comprising the steps of preparation of the bamboo chip units, meshing and butting, hot pressing and gluing and the like. The present invention has the advantages of small connectors, uniform mechanical strength, and applicability for structures materials such as van truck bottom plates.

A method of forming a composite material includes: a) providing a substrate with fibres, lignin and hemicellulose; b) partially removing the lignin and hemicellulose from the substrate; and c) compressing the remaining substrate to form a compressed substrate. A composite material formed by the method is also provided.

An amorphous polylactic acid polymer having a weight average molecular weight in the range of about 35,000 to 180,000 is described. The polylactic acid polymer composition can be hammer milled without cryogenics result in the form of particles wherein 90% of the particles have particle size of about 250 m or less and the material has a glass transition temperature of between about 55 C. to about 58 C. and a relative viscosity of about 1.45 to about 1.95 centipoise. The polymer composition can be used to form an aqueous suspension. The material is ideally suited for use in preparing particleboard. A method is disclosed for preparing such polylactic acid polymers. The method involves obtaining an amorphous polylactic acid polymer having a weight average molecular weight of between about 115,000 to about 180,000. Treating the polylactic acid polymer to reduce the molecular weight to between about 35,000 to 45,000 such that it has a glass transition temperature of between about 55 C. and 58 C. and a relative viscosity of about 1.45 to about 1.95. Material can be formed into particles in a commercial hammer mill with bypass such that 90% of the initial mass results in the particles which can pass thru a sieve having a pore size of about 250 m. During particle board formation the temperature of around 140-140 C being reached to optimally activate the adhesive; Bond strengths and throughput rates of resulting particle boards can be controlled thereafter, with variable combination of particle sizes, adhesive loading and initial moisture content.

The present invention discloses a method for quick hot-press forming of laminated wood. The method includes: drying a machined small wood material to a moisture content of 5-8 wt %; gluing the dried small wood material, and assembling and laying the dried small wood material to be a square material or a sheet material, where an adhesive for the gluing is a water-soluble adhesive having a solid content of 45-60 wt %; clamping the square material or the sheet material through a three-dimensional metal clamp; sending the clamped square material or sheet material together with the clamp into a microwave heating machine for microwave heating to obtain a formed laminated wood, where the time from the gluing to the entry into the microwave heating machine is controlled to not exceed 15 min. According to the present invention, a glued part that needs to be heated can be heated quickly, precisely and effectively, the gluing strength and production efficiency of the laminated wood can be significantly improved, and the cost of production energy consumption is reduced.

The invention relates to a multiple-layer composite board of discrete materials and plastic. The multiple-layer composite board of discrete materials and plastic is formed by providing independently stratified plastic layers and discrete material layers, which are pressed in melting state of the alternate plastic layers and discrete material layers and cooled. Due to this stratification, centralized plastic layers constitute high load capacity and discrete material layers pressed with pressure lower than normal extrusion process constitute low density for the multiple-layer composite board of discrete materials and plastic.

An amorphous polylactic acid polymer having a weight average molecular weight in the range of about 35,000 to 180,000 is described. The polylactic acid polymer composition can be hammer milled without cryogenics result in the form of particles wherein 90% of the particles have particle size of about 250 m or less and the material has a glass transition temperature of between about 55 C. to about 58 C. and a relative viscosity of about 1.45 to about 1.95 centipoise.