摘要:
The present invention relates to polyolefin compositions comprising man-made cellulose fibers of very high modulus to improve the mechanical performance of said compositions while retaining a low density. The present invention further relates to a melt mixing process with controlled shear intensity and energy input especially suitable for the production of said compositions.
摘要:
The present invention relates to polyolefin compositions comprising man-made cellulose fibers of very high modulus to improve the mechanical performance of said compositions while retaining a low density. The present invention further relates to a melt mixing process with controlled shear intensity and energy input especially suitable for the production of said compositions.
摘要:
The invention relates to a lyocell-type cellulose fibre, characterised in that the ratio V of the fibre strength in the FFk conditioned state to the fibre elongation in the Fdk conditioned state is 2,.2 or less.
摘要:
The present invention relates to a cellulosic moulded body containing a cellulose/clay nanocomposite, wherein the clay component of said nanocomposite comprises a material selected from the group consisting of unmodified hectorite clays and hydrophilically modified hectorite clays.
摘要:
A process for producing a cellulose moulding, especially cellulose fibres, by the combination of steps in which a cellulose-containing material is introduced into an aqueous solution of a tertiary amine oxide in order to put it in suspension, water is extracted from the suspension with intensive mixing and the application of high temperature and reduced pressure until a cellulose solution is formed, and the solution is moulded using a moulding tool, especially a spinneret, in order to precipitate the dissolved cellulose, with the condition that the dissolved cellulose consists essentially of shredded waste paper, shredded waste cellulose-containing fabrics and/or shredded, mechanically and/or chemically digested annual plants.
摘要:
A process is disclosed for producing shaped cellulose bodies, in particular foils and fibres. A solution of cellulose in a tertiary amine oxide is extruded through a shaping device, for example a spinning nozzle, and the extruded shaped body is drawn as it is led into a aqueous regenerating bath, in which it coagulates. The coagulated shaped body is then washed with an aqueous washing liquid. The process is characterised in that the regenerating bath used for coagulating and/or the liquid used for washing the shaped body contain a dissolved surfactant.
摘要:
The invention relates to a lyocell fiber containing a material that is selected from the group comprising pearl powder, ground mother of pearl, and mixtures thereof. A method for producing the fiber according to the invention encompasses the following steps: - a cellulose spinning solution is produced in an aqueous tertiary amine oxide, preferably N-methylmorpholine-N-oxide (NMMO); and - the spinning solution is spun into fibers. Said method is characterized in that a material that is selected from the group comprising pearl powder, ground mother of pearl, and mixtures thereof is mixed into the spinning solution and/or a precursor of the spinning solution.