A method includes: preparing a dispersion liquid by mixing a silicon-based porous material into an aqueous solvent in which cellulose nanofibers are dispersed; producing a dried material by drying the dispersion liquid; and producing a composite powder by grinding the dried material. A content ratio of the cellulose nanofibers and the silicon-based porous material in the dispersion liquid is 1:5 to 1:20 on a mass basis. A relationship of the following expression (1) is satisfied,
A method includes: preparing a dispersion liquid by mixing a silicon-based porous material into an aqueous solvent in which cellulose nanofibers are dispersed; producing a dried material by drying the dispersion liquid; and producing a composite powder by grinding the dried material. A content ratio of the cellulose nanofibers and the silicon-based porous material in the dispersion liquid is 1:5 to 1:20 on a mass basis. A relationship of the following expression (1) is satisfied,
[
Math
.
1
]
Y
≤
-
0
.
0
4
8
X
+
1
.96
(
1
)
where X (in parts by mass) is a content of the silicon-based porous material relative to 1 part by mass of the cellulose nanofibers contained in the dispersion liquid and Y (in % by mass) is a concentration of the cellulose nanofibers.
A curable resin composition containing at least a thermosetting resin and a composite powder containing cellulose nanofibers and a silicon-based porous material. The content ratio of cellulose nanofiber to silicon-based porous material is, on a mass basis, cellulose nanofiber:silicon-based porous material = 1:5 to 1:20. In the composite powder, the cellulose nanofiber attaches to at least the surface of the silicon-based porous material or is in the pores of the silicon-based porous material. The content of the composite powder with respect to 100 parts by mass of the thermosetting resin is 0.1-10 parts by mass.
C08L 101/12 - Compositions of unspecified macromolecular compounds characterised by physical features, e.g. anisotropy, viscosity or electrical conductivity
C08J 5/10 - Reinforcing macromolecular compounds with loose or coherent fibrous material characterised by the additives used in the polymer mixture
A tubular body (1) made of a fiber-reinforced plastic and used as a structural material of a vehicle includes corners (4) extending along an axis of the tubular body (1) on an outer circumferential surface thereof. The tubular body (1) is a tubular laminate that is formed by laminating a fabric layer (12) formed by laminating fabric materials and unidirectional material layers (11, 13). Each fabric material includes a fabric in which reinforcing fibers are woven and a plastic with which the fabric is impregnated. Each unidirectional material layer (11, 13) includes reinforcing fibers oriented in one direction and a plastic with which the reinforcing fibers are impregnated. The reinforcing fibers of each unidirectional material layer (11, 13) are oriented along the axis of the tubular laminate. The unidirectional material layers (11, 13) include an outer unidirectional material layer (13) laminated on an outer circumferential surface of the fabric layer (12), and an inner unidirectional material layer (11) laminated on an inner circumferential surface of the fabric layer.
B29C 65/00 - Joining of preformed partsApparatus therefor
B29C 35/02 - Heating or curing, e.g. crosslinking or vulcanising
B29C 35/04 - Heating or curing, e.g. crosslinking or vulcanising using liquids, gas or steam
B32B 5/12 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments characterised by the relative arrangement of fibres or filaments of adjacent layers
This slide member is configured to support a movable part and to be slidably movable in a prescribed direction. This slide member is a carbon-fiber-reinforced resin cylindrical body which is formed from a laminate obtained by layering, in the thickness direction, carbon fiber sheets impregnated with a resin.
The present invention is characterized by including: a step for preparing a dispersion by mixing a silicon-based porous material into an aqueous solvent in which cellulose nanofibers have been dispersed; a step for fabricating a dried body by drying the dispersion; and a step for fabricating composite powder by pulverizing the dried body, wherein the content ratio of the cellulose nanofibers and the silicon-based porous material in the dispersion is 1:5 to 1:20 in terms of mass, and the relationship of formula (1) below is established for a case in which the content of the silicon-based porous material to one part by mass of the cellulose nanofibers included in the dispersion is defined as X (units in parts by mass) and the concentration of the cellulose nanofibers is defined as Y (units in mass %). [Formula 1] Y≤-0.048X+1.96 (1)
A fiber-reinforced-resin tubular body (1) used as a structural material of a vehicle includes corners (4) extending along the axis of the tubular body (1) at the outer peripheral surface thereof. The tubular body (1) is a tubular laminated body in which a woven fabric layer (12) formed by laminating multiple woven fabric materials and multiple one-directional material layers (11, 13) are laminated. Each of the woven fabric materials includes a woven fabric of reinforcing fibers and resin impregnated through the woven fabric. Each of the one-directional material layers (11, 13) includes reinforcing fibers oriented in one direction and resin impregnated through the reinforcing fibers. The reinforcing fibers of the one-directional material layers (11, 13) are oriented along the axis of the tubular laminated body. The multiple one-directional material layers (11, 13) include the outer one-directional material layer (13) laminated on the outer peripheral surface of the woven fabric layer (12) and the inner one-directional material layer (11) laminated on the inner peripheral surface of the woven fabric layer.
B62D 29/04 - Superstructures characterised by material thereof predominantly of synthetic material
B29C 43/12 - Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies using bags surrounding the moulding material
B29C 70/10 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements
B29C 70/44 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
A fiber bundle winding device includes: a traverse guide configured to guide a fiber bundle to a bobbin; and a controller configured to control the traverse guide according to a rotation of the bobbin. The traverse guide is movable parallel to a center axis of the bobbin. The controller can perform: first movement control that moves the traverse guide to wind the fiber bundle onto the bobbin in a predetermined first area extending in a direction of the center axis of the bobbin; and second movement control that moves the traverse guide to wind the fiber bundle onto the bobbin in a second area being smaller than the first area and having ends that are located within the first area and at different positions from respective ends of the first area. The first movement control and second movement control are performed at a ratio of N:1 (N is an integer more than 1).
This slide rail unit is equipped with a long first rail which has a first facing surface extending in the lengthwise direction of the first rail, a long second rail which extends along the first rail and has a second facing surface which faces the first facing surface, and a rolling element which is positioned between the first and second facing surfaces. The second rail is assembled so as to be capable of moving relative to the first rail, and a reinforcing part formed from a fiber-reinforced resin material demarcates the first and/or second facing surfaces.
A tow prepreg manufacturing apparatus applies resin to an original tow of reinforcing fibers. The tow prepreg manufacturing apparatus includes an oiling roller, a scraper, a resin reservoir, a tube pump, and a controller. The oiling roller is supplied with resin while rotating at a predetermined rotation speed. The scraper adjusts the shape of the resin supplied onto the oiling roller. The resin reservoir supplies resin to the oiling roller. The tube pump discharges resin to the resin reservoir. The controller controls the tube pump so that the amount of resin held in the resin reservoir remains constant and controls the rotation speed of the oiling roller so that a resin content of a wound tow prepreg becomes equal to a target resin content.
B05D 1/28 - Processes for applying liquids or other fluent materials performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers
B05C 1/08 - Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller
B05C 11/10 - Storage, supply or control of liquid or other fluent materialRecovery of excess liquid or other fluent material
B05D 3/00 - Pretreatment of surfaces to which liquids or other fluent materials are to be appliedAfter-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
B29C 70/00 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
B05D 7/20 - Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to wires
A golf club head includes a face, a sole, and a weight member. The sole includes a guide groove having a plurality of positioning grooves. The weight member includes a plurality of protrusions, and is positioned in the guide groove with the plurality of protrusions engaging with the plurality of positioning grooves. The plurality of positioning grooves each include a pair of sidewalls formed in an arc shape and a bottom connecting the sidewalls to each other. The plurality of protrusions each include a pair of side surfaces formed in an arc shape and a ridge connecting the side surfaces to each other.
A fiber-reinforced member includes: a base member having a tubular region with an outer circumferential surface extending along and substantially in parallel with an axial direction; and a fiber-reinforced resin layer constituted of a tow prepreg wound in an overlapping manner to cover the outer circumferential surface of the base member along a predetermined direction crossing the axial direction when viewed in a radial direction of the base member, the tow prepreg serving as a widened tape-like member. The tape-like member constituting the fiber-reinforced resin layer has a portion having a fiber line extending along a direction crossing the predetermined direction. A size of a width of the tape-like member constituting the fiber-reinforced resin layer is not less than 100 times and not more than 400 times as large as a size of a thickness of the tape-like member constituting the fiber-reinforced resin layer in the radial direction.
B29C 70/20 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of substantial or continuous length oriented in a single direction, e.g. roving or other parallel fibres
F16L 9/12 - Rigid pipes of plastics with or without reinforcement
B32B 5/12 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments characterised by the relative arrangement of fibres or filaments of adjacent layers
B32B 37/20 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of continuous webs only
B29C 70/30 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core
B32B 15/14 - Layered products essentially comprising metal next to a fibrous or filamentary layer
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
B32B 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
B29C 53/58 - Winding and joining, e.g. winding spirally helically
B29C 70/32 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core on a rotating mould, former or core
B32B 7/03 - Layered products characterised by the relation between layers Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties Layered products characterised by the interconnection of layers with respect to the orientation of features
F16L 9/16 - Rigid pipes wound from sheets or strips, with or without reinforcement
B29K 63/00 - Use of epoxy resins as moulding material
A base for a shuttlecock having sufficient durability and a shuttlecock. The base (2) for a shuttlecock comprises a fixing surface section (the surface of the base (2) in which insertion holes (63) are formed) to which the shafts (7) of the artificial feathers for the shuttlecock are secured. The plurality of insertion holes (63) for inserting and affixing the shafts (7) therein and a projection (61) which is adjacent to the insertion holes (63) and which projects from the surface of the fixing surface section are formed in and on the fixing surface section.
A badminton shuttlecock having the same flight characteristics and durability as a shuttlecock using waterfowl feathers. A shuttlecock comprises artificial feathers (3) each of which has a feather body section (5) and a shaft (7) connected to the feather body section (5) and which are annularly disposed and secured to a base body so as to be partially overlapped each other. The shuttlecock also comprises a net forming string-like body (13) for fixing the shafts (7) of the artificial feathers (3) to each other. Ends of projections (12) which are flexible members are each mounted to at least a part of that surface of each shaft (7) which faces the net forming string-like body (13). The end of the projections (12) are deformed by being pressed by the net forming string-like body (13), and in this deformed state, the net forming string-like body (13) and the ends of the projections (12) are fixedly connected to each other through an adhesive member.
A shuttlecock having flying performance and durability equivalent to those of shuttlecocks using feathers of aquatic birds, an artificial vane for a shuttlecock, and methods of manufacturing them are provided. An artificial vane (3) for a shuttlecock has a vane part and a stem (7). The stem (7) is connected to the vane part. The stem (7) includes a fixed stem part (10) and a vane stem part (8) continuing to the fixed stem part (10). A sheet-like member (9), a member forming the vane part, has a vane body part (5) in contact with the fixed stem part (10) and larger in width than the fixed stem part (10) and also has a projecting part (12) projecting from the vane body part (5) toward the vane stem part (8). That end of the projecting part (12) that is located on the side opposite the vane body part (5) is embedded in the member forming the vane stem part (8).
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