Abstract:
The present invention provides, among other things, compositions comprising nanofibrils, at least one maleic-anhydride (MA) copolymer and at least one matrix polymer, and methods of making such compositions. The provided methods and compositions allow for the production of composites with unexpectedly superior properties including improved impact resistance, tensile modulus of elasticity, tensile strength, and flexural modulus of elasticity as compared to previously known composites. In some embodiments, the present invention provides methods including the steps of providing cellulose nanofibrils, associating the cellulose nanofibrils with a maleic-anhydride (MA) copolymer to form a nanofibril-MA copolymer blend, preparing the nanofibril-MA copolymer blend for addition to a matrix polymer, and forming a composite by associating the nanofibril-MA copolymer blend with the matrix polymer, wherein the amount of cellulose nanofibrils in the composite is between 3% and 50% by weight of the composite.
Abstract:
L'emballage souple de forme essentiellement tubulaire destiné à contenir un produit semi- liquide ou pâteux comprend une jupe, une tête, un ajout de matière au moins sur le côté intérieur de la jupe et optionnellement un bouchon, la jupe étant formée par une feuille enroulée et comportant une soudure longitudinale permettant l'assemblage de ses bords; la tête étant fixée sur le pourtour de l'une des extrémités de la jupe. La jupe comprend un taux d'au moins 30% de matière recyclée ou de matière issue de ressources renouvelables et l'ajout de matière est disposé de façon à supprimer une discontinuité de la face interne dans la zone de la soudure longitudinale.
Abstract:
The invention relates to a covering panel (1, 25) with a single piece of extruded support plate (2), made from synthetic plastic material, preferably at least in part of recycled synthetic plastic material, with a flat and even top surface (3), a bottom face (18) and with pairs of opposite sides (4,5; 34, 35) that are provided with complementary profile edges in the form of a male profile edge (6; 26; 36) on the one side and a female profile edge (7; 27; 37) on the other, where said male profiled edge (6, 26, 36) can be connected, in a clamping or anchoring manner, to a female edge (7, 27) of an equal adjacent covering panel (8, 28), preferably according to a direction D that runs perpendicular to said top surface. In their bottom face (18) there are a number of strip-shaped recesses (19) that run according to the direction of extrusion and that alternate in that place with a number of support strips (20), of which at least a part (46) has a width S along that bottom face that complies with 1,5T
Abstract:
A flexible hose having a non-fluorinated rubber inner tube, a non-fluorinated rubber outer cover, an intermediate barrier layer consisting essentially of ethylene- vinyl alcohol copolymer (EVOH) having an ethylene content less than 30 mole %, and preferably a textile reinforcement between said barrier layer and said outer cover. A non-fluorinated rubber tie layer may be included between the barrier and the reinforcement. Permeability to ethanol- and methanol-containing fuels is very low.
Abstract:
A connection between composites (10, 12) with non-compatible properties and a method of preparing of such connections are provided. The composites comprise first and second type fibres, respectively, as well as resin. The connection comprises a transition zone (52) between the composites (10, 12) having a layered structure. The transition zone may optionally comprise a transition member and the transition member may optionally be integrated with one or more of the composites. Examples of non-compatible properties where the present connection will be appreciated are great differences in stiffness, e.g. Young's modulus, or in coefficient of thermal expansion.
Abstract:
A method for preparing a more reliable connection between two members (2, 4) is provided. The method involves the use of a gas-removal layer (6), which allows for gas transport in a number of overall directions in a plane of the gas-removal layer. The gas-removal layer comprises a resin (12) and during consolidation the gas-removal layer is deformed to form a collection substantially free from entrapped gas voids. Furthermore, a gas-removal layer is provided as well as a mould for casting of gas-removal layers and a method for preparing such a mould.The method and the gas-removal layer provided are particularly useful for manufacturing of wind turbine blades and spars for such blades.
Abstract:
A pre-consolidated pre-form and a method of pre-consolidating pre-forms are provided. Pre-consolidation is a process, whereby gas inside a pre-form is removed and a low porosity is produced. It involves redistribution of resin and optionally a redistribution of fibres. The pre-consolidation may involve a limited curing of the resin. Pre-consolidated pre-forms and composites prepared from pre-consolidated pre-forms will be appreciated amongst others due to good reproducibility, low porosity, high homogeneity, high strength, ability to plastically shaping of the pre-consolidated pre-form, ability to be connected to other pre-forms and/or other structures, suitability for automation and long shelf life without premature curing.
Abstract:
The present invention provides composites prepared from melt blending compositions that generally include cellulosic pulp fibers having an alpha-cellulose purity of greater than 80% by weight, at least one water soluble binder, at least one lubricant, at least one compatibilizer, and at least one matrix polymer. The present invention further provides advantageous temperature profiles and feeding arrangements to be used in conjunction with the melt blending of such composites. The composites of the present invention exhibit reduced discoloration and improved fiber dispersion.
Abstract:
Low moisture processed cellulose fiber pellets useful in the manufacture of cellulose fiber reinforced polymer products and materials, and an extruder-less process for forming such low moisture cellulose fiber pellets from wet processed cellulose fiber-based waste source materials. The cellulose fiber pellets include processed cellulose fibers and mixed plastics and/or inorganics such as minerals, clay, and the like, and have a moisture content of about 0.1 to 14 % by weight. The extruder-less process includes the steps of drying, grinding and pelletizing in a manner capable of forming low moisture cellulose fiber pellets from wet processed cellulose fiber-based waste source materials having a moisture content of about 40-80% by weight.