B29K2401/00

System and method for forming activated carbon aerogels and performing 3D printing

Making a carbon aerogel involves 3-D printing an ink to make a printed part, removing the solvent from the printed part, and carbonizing the printed part (with the solvent removed) to make the aerogel. The ink is based on a solution of a resorcinol-formaldehyde resin (RF resin), water, and an organic thickener. Advantageously, the RF resin contains an acid catalyst, which tends to produce carbon aerogels with higher surface areas upon activation than those produced from methods involving an ink composition containing a base catalyzed resin.

Biodegradable Drinking Straw
20200253403 · 2020-08-13 ·

A biodegradable drinking straw and a manufacturing method thereof, the biodegradable drinking straw includes: a plant fiber material, which accounts for 5 wt % to 60 wt % of the total weight of the biodegradable drinking straw; and a biodegradable plastic selected from polylactic acid (PLA), polybutylene succinate (PBS) or a combination thereof; the biodegradable plastic accounts for 40 wt % to 95 wt % of the total weight of the biodegradable drinking straw; the fiber material is mixed into the biodegradable plastic and mixed uniformly and then extruded to form a tube body of the biodegradable drinking straw by extrusion molding. By replacing the traditional straw material with plant fibers and biodegradable plastics, the biodegradable drinking straw can be quickly decomposed naturally in the environment after being buried, thus reducing environmental pollution, and meeting the environmental protection requirements.

Method for manufacturing microporous film and microporous film

The present invention provides a method for producing a microporous film, including: preparing a resin composition containing polypropylene (PP) as a resin component and containing from 0.01 to 20 parts by weight of a chemically modified cellulose or chemically modified cellulose nanofiber per 100 parts by weight of the resin component and from 0.01 to 3 parts by weight of a -crystal nucleating agent per 100 parts by weight of the resin component; melt-molding the resin composition into a film-like material in which the crystal phase of a polypropylene component in the resin composition is substantially a -crystal phase, and subsequently stretching the film-like material at a temperature of 60 to 160 C., and provides a microporous film.

Highly Environmentally Sustainable Composite Material

The present invention related to a thermoplastic composition, suitable to be submitted to common methods of heat forming, or thermoforming, of thermoplastic materials, as well as the thermoformed composite material which is obtained/can be obtained from said thermoplastic composition, said thermoplastic composition and said thermoformed composite material derived therefrom comprising the combination of cellulose with a thermoplastic material comprising a hydrolysable or hydrosoluble polyhydroxylated polymer, such as starch or a polymer based on polyvinyl alcohol (PVA), wherein cellulose is available in an amount ranging from 30 to 60% by Weight, preferably from 40 to 60% by weight, said percentages being calculated on 100 parts by weight of the combination of cellulose with the thermoplastic material comprising a hydrolysable or hydrosoluble polyhydroxylated polymer.

BIODEGRADABLE DRINKING STRAW
20200015612 · 2020-01-16 ·

A biodegradable drinking straw is made of plant fiber powder and at least one polymer. The at least one polymer is polylactide (PLA), polybutylene succinate (PBS), or polypropylene (PP). As an alternative of drinking straws made of traditional plastic materials, the biodegradable drinking straw when buried in landfills can be degraded by microorganisms and decay, eventually becoming a part of the nature again. Besides, the biodegradable drinking straw is made of neither non-petrochemical materials nor silica, so its production avoids excessively consuming the finite resources, thereby being contributive to energy conservation and environmental protection.

LIQUID EJECTING APPARATUS, LIQUID EJECTING METHOD, AND INK
20200016821 · 2020-01-16 · ·

A liquid ejecting apparatus, a liquid ejecting method and an ink are provided, so as to appropriately increase the strength of ink after fixing. The liquid ejecting apparatus is configured to eject an ink by an inkjet method, and includes an inkjet head configured to eject the ink. The inkjet head has a nozzle configured to eject the ink. The ink includes a resin particle having a size capable of passing through the nozzle. The resin particle contains a fibrous substance. The fibrous substance is, for example, fibers of cellulose.

LARGE-SCALE ADDITIVE MANUFACTURING MATERIALS COMPRISING PYROLYZED LIGNOCELLULOSIC FILLER
20240075684 · 2024-03-07 ·

A material including (i) a polymer matrix and (ii) a pyrolyzed lignocellulosic filler dispersed in the polymer matrix, for large-scale additive manufacturing.

RESIN COMPOSITION, AND THREE-DIMENSIONAL MOULDING PRODUCTION METHOD
20190330484 · 2019-10-31 ·

The purpose of the present invention is to provide a liquid resin composition which includes polysaccharide nanofibres, and which is used in a three-dimensional moulding production method in which a moulding obtained by curing the resin composition by irradiating the resin composition with active energy rays is three-dimensionally formed, wherein unevenness in strength in the height direction is not readily produced in the formed three-dimensional moulding. The present invention relates to a liquid resin composition which is used to produce a three-dimensional moulding, and which three-dimensionally forms a moulding as a result of being cured by being selectively irradiated with active energy rays. The resin composition includes an active energy ray-curable compound and polysaccharide nanofibres. The ratio of the number of polysaccharide nanofibres having a branched structure to the total number of polysaccharide nanofibres is less than 20%.

METHOD FOR PREPARING COMPACT OF RESIN COMPOUND HAVING ANISOTROPY

A method for preparing a compact of resin compound comprising the following steps (a) to (c): (a) a preparation step of mounting a sheet-shaped or block-shaped compact of resin compound including a resin composition, which contains a filler having magnetic anisotropy and is solidified by curing or by being advanced to a B-stage, on a transportation unit which is movable in the horizontal direction, and covering at least a top surface of the compact of resin compound with a cover material; (b) a step of applying a magnetic field to the compact of resin compound obtained in the step (a) with a bulk superconductor magnet having a central magnetic flux density of 1 T or more; and (c) a step of moving the compact of resin compound in the horizontal direction and scanning it while applying vibrations to the compact of resin compound mounted on a region of a central part of the bulk superconductor magnet under application of a magnetic field.

Composite material for additive manufacturing of a three-dimensional composite product

The invention relates to a composite material filament having rheological characteristics suitable for use in additive manufacturing by extrusion, a method for manufacturing a three-dimensional composite product with an additive manufacturing system from a filament of such composite material, and to a three-dimensional composite product obtained by an additive manufacturing system using such composite material. The filament is formed of material comprising semi-crystalline polylactic acid and chemical pulp of wood-based cellulose fibers, wherein the amount of chemical pulp of wood-based cellulose fibers is selected such that sufficient complex viscosity is obtained at melt state, such that upon additive manufacturing by extrusion, composite melt formed of the filament has a ratio of shear storage modulus to shear loss modulus G/G equal to or higher than 1.0 at a temperature equal to or higher than 133 C.