B29B7/10

METHOD FOR PREPARING BIO-BASED COMPOSITE USING PALM BIOMASS POWDER AS RAW MATERIAL
20210189135 · 2021-06-24 ·

A method for preparing a bio-based composite using palm biomass powder as raw material, which belongs to the technical field of preparation methods for bio-based composites. During palm micropowder washing, 100 parts by weight of 600-1,200 mesh palm micropowder is placed in a reactor, and 400-500 parts by weight of acetone is added to the reactor in a 1:4 or 1:5 bath ratio; during surface treatment of palm micropowder, the reaction system after solvent displacement is heated to 80-100° C., and distillate is dehydrated with a 3A molecular sieve and then refluxed to a reactor; bio-based resin is compounded and extruded. At least one embodiment of the present invention solves the problem that use of palm as a biomass raw material leads to impurity migration and insufficient product performance due to high small oily molecule content.

MOLDING MATERIAL SUPPLY DEVICE AND MOLDING MATERIAL SUPPLY METHOD
20210260801 · 2021-08-26 · ·

A molding material supply device and a molding material supply method capable of supplying a degassed molding material to a molding apparatus at a desired timing are desired. According to the molding material supply device and method of the disclosure, a first discharge member is driven to discharge a molding material accommodated in a first accommodation member to a second discharge member through a through hole of a die, and a second discharge member configured by the first accommodation member and the die advances to discharge the molding material having been degassed in the second accommodation member to the molding apparatus from a molding material supply port.

CELLULOSE-FIBER DISPERSION POLYETHYLENE RESIN COMPOSITE MATERIAL, FORMED BODY AND PELLET USING SAME, PRODUCTION METHOD THEREFOR, AND RECYCLING METHOD FOR CELLULOSE-FIBER ADHESION POLYETHYLENE THIN FILM PIECE

A cellulose-fiber dispersion polyethylene resin composite material, formed by dispersing a cellulose fiber into a polyethylene resin, wherein a proportion of the cellulose fiber is 1 part by mass or more and 70 parts by mass or less in a total content of 100 parts by mass of the polyethylene resin and the cellulose fiber, and wherein water absorption ratio satisfies the following formula; and a formed body and a pellet using the same, a production method therefor, and a recycling method for a cellulose-fiber adhesion polyethylene thin film piece.


(water absorption ratio)<(cellulose effective mass ratio).sup.2×0.01  [Formula].

Conductive High Strength Extrudable Ultra High Molecular Weight Polymer Graphene Oxide Composite

The present invention includes an injection moldable/extrudable composite that preserves at least 80% or enhances the primary physical properties of compression molded polymer, the composite comprising, e.g., an Ultra High Molecular Weight Polyethylene (UHMWPE) and graphene/graphite oxide or graphene oxide, with or without polypropylene.

ELECTROSPINNING OF EPOXY FIBERS

The presently disclosed subject matter relates to the field of electrospun epoxy fibers, a solution for producing the fibers and a system for electrospinning the fibers. This invention further relates to processes of producing the solution and the fibers. By dissolving epoxy in a dielectric solvent, suitable electrospinning conditions are achieved by controlling the degree of epoxy crosslinking in the solution. The fibers are captured on a net screen, with the positive electrode placed behind it. The resulting electrospun fibers exhibit superior mechanical properties in comparison with other epoxy fibers. This improvement in mechanical properties is, in part, due to anisotropic molecular rearrangement resulting from the strong stretching forces induced by electrospinning.

ELECTROSPINNING OF EPOXY FIBERS

The presently disclosed subject matter relates to the field of electrospun epoxy fibers, a solution for producing the fibers and a system for electrospinning the fibers. This invention further relates to processes of producing the solution and the fibers. By dissolving epoxy in a dielectric solvent, suitable electrospinning conditions are achieved by controlling the degree of epoxy crosslinking in the solution. The fibers are captured on a net screen, with the positive electrode placed behind it. The resulting electrospun fibers exhibit superior mechanical properties in comparison with other epoxy fibers. This improvement in mechanical properties is, in part, due to anisotropic molecular rearrangement resulting from the strong stretching forces induced by electrospinning.

Process for manufacturing an ultra-high thermally conductive graphene curing bladder

A process for manufacturing an ultra-high thermally conductive graphene curing bladder includes the following steps: (1) pre-mixing an ultra-high thermally conductive graphene with rubber to obtain a pre-dispersed graphene master batch, performing a granulation process or a cutting process on the pre-dispersed graphene master batch to obtain a granular solid or a sheet solid, mixing the solid in a rubber mixing mill to obtain an ultra-high thermally conductive graphene rubber compound; (2) extruding, by an extruding machine, the ultra-high thermally conductive graphene rubber compound into a rubber strip of a desirable size; weighing and fixed-length processing the rubber strip of the ultra-high thermally conductive graphene rubber compound to obtain a rubber blank, placing the rubber blank into a pressing type curing bladder mold, closing the mold, pressurizing, heating and curing to obtain a finished product of the ultra-high thermally conductive graphene curing bladder.

Process for densification of poly(arylene ether ketone) powders

Process for densification of a poly(arylene ether ketone) (PAEK) powder or of a mixture of poly(arylene ether ketone) (PAEK) powders, the process being mixing the powder or the mixture of powders, in a mixer equipped with a rotary stirrer including at least one blade, for a period of between 30 minutes and 120 minutes, preferably of between 30 and 60 minutes, at a blade-tip speed of between 30 m/s and 70 m/s, preferably of between 40 and 50 m/s.

Process for densification of poly(arylene ether ketone) powders

Process for densification of a poly(arylene ether ketone) (PAEK) powder or of a mixture of poly(arylene ether ketone) (PAEK) powders, the process being mixing the powder or the mixture of powders, in a mixer equipped with a rotary stirrer including at least one blade, for a period of between 30 minutes and 120 minutes, preferably of between 30 and 60 minutes, at a blade-tip speed of between 30 m/s and 70 m/s, preferably of between 40 and 50 m/s.

PROCESS FOR MANUFACTURING AN ULTRA-HIGH THERMALLY CONDUCTIVE GRAPHENE CURING BLADDER

A process for manufacturing an ultra-high thermally conductive graphene curing bladder includes the following steps: (1) pre-mixing an ultra-high thermally conductive graphene with rubber to obtain a pre-dispersed graphene master batch, performing a granulation process or a cutting process on the pre-dispersed graphene master batch to obtain a granular solid or a sheet solid, mixing the solid in a rubber mixing mill to obtain an ultra-high thermally conductive graphene rubber compound; (2) extruding, by an extruding machine, the ultra-high thermally conductive graphene rubber compound into a rubber strip of a desirable size; weighing and fixed-length processing the rubber strip of the ultra-high thermally conductive graphene rubber compound to obtain a rubber blank, placing the rubber blank into a pressing type curing bladder mold, closing the mold, pressurizing, heating and curing to obtain a finished product of the ultra-high thermally conductive graphene curing bladder.