摘要:
The invention relates to a method for the production of a carbon or a ceramic component based on carbon, using a cellulose-containing semi-finished moulded piece which is pyrolysed. According to the invention, homogeneous large-size ceramic components may be produced, whereby a cellulose-containing, semi-finished moulded piece comprising fibres, chips or strands of homogeneous density distribution and homogeneous structure is used as semi-finished moulded piece and is pyrolysed in non-oxidising gas atmospheres.
摘要:
The invention relates to a wood material product and a method for producing wood material products from particles containing lignocellulose and adhesives containing formaldehydes, which are intermixed and fed to a forming process after mixing. A zeolite is added to the mixture of adhesives and particles containing lignocellulose.
摘要:
The invention relates to a method for producing biomaterial-reinforced composites and a method for producing modified biomaterials. Corresponding products are also provided. More particularly the invention relates to composites and materials of this type that are modified with alkyl aluminoxanes or produced using same.
摘要:
The invention relates to a method for producing an at least two-layered board. The board has a carrier layer, which consists at least partly of wood or lignocellulose-containing particles or fibers, and at least one coating, which consists of a WPC material and which is arranged on at least one face of the carrier layer. The method has the following steps: providing a finished carrier board (30) which forms the carrier layer; providing a WPC coating material, for example in the form of a granulate (32), on at least one of the two surfaces of the carrier board (30); and pressing the WPC coating material and the carrier board (30) under the influence of heat and pressure.
摘要:
Die Erfindung betrifft ein Verfahren zur Herstellung eines autoadhäsiv gebundenen, porösen, druckfesten Formkörpers aus zerkleinerten lignocellulosehaltigen Faserstoffen, die bei Temperaturen zwischen 120°C und 180°C und einem Druck zwischen 2 bar und 8 bar zu einer Fasersuspension verarbeitet werden, die anschließend ohne Zusatz eines synthetischen Bindemittels in eine Form gefüllt oder auf einen Träger aufgebracht und getrocknet wird.
摘要:
The invention relates to a method for applying an adhesion promoter to a fibrous material, in particular, during the production of fiber composites with a thermoplastic or duroplastic matrix. The aim of the invention is to provide a method with which, without the described drawbacks of existing methods, the adhesion promoter can be directly applied to the fibrous material. To this end, the fibrous material, together with the adhesion promoter, is conveyed inside a pipe at a speed greater than 20 m/s.
摘要:
Described is a method of controlling the ratio of the hydration time (HZ) to the open time (OZ) in the manufacture of composite materials. The mixtures from which the boards are manufactured consist of hydratable calcium sulphate, in particular gipsum binders, aggregrates, fibres, water additives and other additives. The HZ:OZ ratio is less than 1. This is achieved by adding a retarder-accelerator combination and using pressure. This gives a maximum reduction in the hydration time for the manufacturing process relative to the open time.
摘要:
Described is a method of controlling the ratio of the hydration time (HZ) to the open time (OZ) in the manufacture of composite materials. The mixtures from which the boards are manufactured consist of hydratable calcium sulphate, in particular gipsum binders, aggregrates, fibres, water additives and other additives. The HZ:OZ ratio is less than 1. This is achieved by adding a retarder-accelerator combination and using pressure. This gives a maximum reduction in the hydration time for the manufacturing process relative to the open time.