Abstract:
Provided in the present invention are a composite material containing plant fibre fabrics and a preparation method thereof. The composite material comprises matrix resin and plant fibre fabrics distributed in the matrix resin, wherein the plant fibres of the plant fibre fabrics are pre-treated with surface modifications, and the pre-treatment with surface modifications comprises coupling treatment using a coupling agent, and/or surface flame retardant treatment using a flame retardant. The matrix resin comprises biomass matrix resin. The prepared composite material has the properties of green environmental protection, flame retardancy, sound isolation, etc.; and can be used as a cabin or trim component and can be applied to the following fields: the interiors of an airplane, high-speed train, or car, and furniture, etc.
Abstract:
The objective of the present invention is to provide a method for easily and efficiently producing cellulose beads which have pore shape suitable for an adsorbent and of which adsorption performance is excellent without using highly toxic and highly corrosive auxiliary raw material and without industrially disadvantageous cumbersome step. The method for producing porous cellulose beads according to the present invention is characterized in comprising (a) the step of preparing a fine cellulose dispersion by mixing a low temperature alkaline aqueous solution and cellulose, (b) the step of preparing a mixed liquid by adding a crosslinking agent to the fine cellulose dispersion, (c) the step of preparing an emulsion by dispersing the mixed liquid in a dispersion medium, (d) the step of contacting the emulsion with a coagulating solvent.
Abstract:
A foamed sheet according to the present invention has a thickness of 30 to 500 µm and includes a foam. The foam has a density of 0.2 to 0.7 g/cm 3 , an average cell diameter of 10 to 150 µm, and a peak top of loss tangent (tan ´) occurring in a temperature range of from -30°C to 30°C, where the loss tangent is defined as the ratio of a loss modulus to a storage modulus determined at an angular frequency of 1 rad/s in dynamic viscoelastic measurement of the foam. The foam preferably has a maximum of the loss tangent (tan ´) in the temperature range of from -30°C to 30°C of 0.2 or more.
Abstract:
Provided is a shoe sole member including a crosslinked foam forming a part or the whole of the shoe sole member, wherein the crosslinked foam is formed by a polymer composition showing specific results in measurement using pulsed NMR.
Abstract:
The invention relates to unvulcanized liquid or solid silicone rubber which contains a proportion of a filler material that expands at an increased temperature.
Abstract:
A crosslinked polyolefin foam that is a crosslinked foam of a polyolefin resin composition, the composition comprising a polyolefin resin (A) and a rubber (B) having a Mooney viscosity (ML 1+4 , 100°C) of 15 to 85. The rubber (B) is contained in an amount of 10 to 150 parts by mass relative to 100 parts by mass of the polyolefin resin (A). The foam has a thickness of 1.5 mm or more, a 25% compressive hardness of 60 kPa or less, and a crosslinking degree of at least one of surface layers at both surfaces with a depth of 500 µm from the surface that is at least 5% higher than the crosslinking degree of the middle layer excluding the both surface layers.
Abstract:
The present invention relates to a method for preparing a superabsorbent polymer including a) preparing a hydrogel phase polymer by thermopolymerizing or photopolymerizing a monomer composition including a water-soluble ethylenically unsaturated monomer and a polymerization initiator; b) chopping the hydrogel phase polymer; c) adding particles having properties of the following i) and ii) to the chopped hydrogel phase polymer; d) chopping the particle-added hydrogel phase polymer again; e) drying the hydrogel phase polymer; f) milling the dried hydrogel phase polymer; g) adding a surface crosslinking agent to the milled hydrogel phase polymer; and h) carrying out a surface crosslinking reaction. i) BET specific surface area of 300 m 2 /g to 1500 m 2 /g, ii) Porosity of 50% or greater.
Abstract:
Provided is a shoe sole member partially or entirely formed by a crosslinked foam, wherein the crosslinked foam shows specific results of pulsed NMR measurement.
Abstract:
A physically crosslinked foamable particle comprises a polyolefin resin and a chemical foaming agent, the foamable particle having a volume of at least about 0.002 mm3.