CN108237739A - A kind of preparation method of the pre- toughened fiber preform of self-fixing - Google Patents

A kind of preparation method of the pre- toughened fiber preform of self-fixing Download PDF

Info

Publication number
CN108237739A
CN108237739A CN201711414921.2A CN201711414921A CN108237739A CN 108237739 A CN108237739 A CN 108237739A CN 201711414921 A CN201711414921 A CN 201711414921A CN 108237739 A CN108237739 A CN 108237739A
Authority
CN
China
Prior art keywords
fiber
yarn
fiber preform
self
suture
Prior art date
Application number
CN201711414921.2A
Other languages
Chinese (zh)
Inventor
邓华
高军鹏
闫丽
安学锋
Original Assignee
中航复合材料有限责任公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中航复合材料有限责任公司 filed Critical 中航复合材料有限责任公司
Priority to CN201711414921.2A priority Critical patent/CN108237739A/en
Publication of CN108237739A publication Critical patent/CN108237739A/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/02Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/08Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the cooling method
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00Ancillary operations in connection with laminating processes
    • B32B38/18Handling of layers or the laminate
    • B32B38/1808Handling of layers or the laminate characterised by the laying up of the layers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022Non-woven fabric
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/028Net structure, e.g. spaced apart filaments bonded at the crossing points
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/06Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by a fibrous or filamentary layer mechanically connected, e.g. by needling, sewing, stitching, hydroentangling, hook and loop-type fasteners to another layer, e.g. of fibres, of paper
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/08Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer the fibres or filaments of a layer being of different substances, e.g. conjugate fibres, mixture of different fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00Layers arrangement
    • B32B2250/20All layers being fibrous or filamentary
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02Synthetic macromolecular fibres
    • B32B2262/0253Polyolefin fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02Synthetic macromolecular fibres
    • B32B2262/0261Polyamide fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02Synthetic macromolecular fibres
    • B32B2262/0261Polyamide fibres
    • B32B2262/0269Aromatic polyamide fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02Synthetic macromolecular fibres
    • B32B2262/0276Polyester fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02Synthetic macromolecular fibres
    • B32B2262/0276Polyester fibres
    • B32B2262/0284Polyethylene terephthalate [PET] or polybutylene terephthalate [PBT]
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10Inorganic fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10Inorganic fibres
    • B32B2262/101Glass fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10Inorganic fibres
    • B32B2262/106Carbon fibres, e.g. graphite fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/50Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558Impact strength, toughness

Abstract

The invention belongs to technical field of composite materials, are related to a kind of preparation method of the pre- toughened fiber preform of self-fixing.Self-fixing fiber preform body proposed by the present invention is the preform that a kind of machine direction can be designed freely, can be cut out according to the mechanical property requirements of composite product different location, suitable for preparing with lower structure:(1) the secondary load-carrying construction part based on rigidity Design;(2) open-celled structure reduces the stress concentration of tapping, such as the lid on fuselage hatch door, porthole and wing;(3) structure connection structure, optimization Multi-fasteners joint pin load distribution, extruding and bypass load distribution.The low cost manufacturing of composite material can be achieved by composite material liquid Transfer molding technique (RTM), vacuum suction technique (VARI) or Resin film infusion (RFI) for the fiber preform body being prepared.Meanwhile the shock resistance of Stitched Composites laminate is improved, improve the damage resistence and damage tolerance of material.

Description

A kind of preparation method of the pre- toughened fiber preform of self-fixing

Technical field

The invention belongs to technical field of composite materials, are related to a kind of preparation side of the pre- toughened fiber preform of self-fixing Method.

Background technology

Fiber curve automatic placement technology can accurately control the fibre bundle in composite laminated plate in each layer Angle realizes the rigidity of composite laminated plate and freely cutting for intensity, achievees the purpose that optimization design.Fiber curve placed Technology includes automatic fiber placement technology (Automatic Fibre Placement, AFP), fiber lay down seam technology (Tailored Fiber Placemen, TFP) and continuous tow shearing technique (Continuous Tow Shearing, CTS).With automated tape-laying Technology is compared, and fiber curve automatic placement technology can realize smaller radius of curvature, and mechanical property designability is stronger, is fitted simultaneously There is the composite product of variable curvature shape for placed.In addition to this, it is opened using containing for fiber curve placement process preparation The problem of composite product of pore structure can be to avoid stress concentration, significantly improves structure efficiency.

TFP technologies are developed based on embroidery technique, by fiber placement path by being created in computer aided design software It builds, is then input to fiber lay down and seams in, equipment will stitch path by designed paving and perform order automatically, obtain placed precision Higher fiber preform.Different from the preimpregnation silk that AFP technologies use, TFP technologies use dry fibers as placed material, can Realize smaller placed curvature, the fiber preform body being prepared passes through composite material liquid Transfer molding technique (RTM), the low cost manufacturing of composite material can be achieved in vacuum suction technique (VARI) or Resin film infusion (RFI).

TFP technologies use conventional suture such as nylon wire or polyester thread anchoring fiber, can cause fiber to a certain degree in the process Upper bending, suture is not molten insoluble in resin curing process, and fiber bending state retains after composite material curing, causes property in face It can decline, especially compression performance.Meanwhile suture is not molten insoluble in resin curing process, and one is occupied in composite material interlayer Fixed spatial position causes composite material interlayer region to become larger, reduces the fiber volume fraction of composite material, cause mechanical property Reduction.Conventional suture is mostly prepared using twisting machine, and small gap can not be filled by resin existing for yarn interior, in composite wood Defect can be become after material curing, further weaken the performance of composite material.Meanwhile it is needed when preparing profiled piece using TFP fabrics It is additionally shaped using setting agent, there are setting agents to coat uniformity problem more rambunctious.

Invention content

The purpose of the present invention is being directed to the deficiencies in the prior art, propose that a kind of pre- toughened fiber of self-fixing is preforming The preparation method of body.

The present invention technical solution be,

Using fiber as reinforcement, yarn is suture, and fabric is base material, spread automatically using fiber seam prepare it is standby by design Good paving seam path performs order automatically, obtains fiber preform body,

The type of the fiber includes the combination of any one or more following fiber:Carbon fiber, glass fibre, boron are fine Dimension, silicon carbide fibre, aramid fiber, Fypro, polyester fiber or superhigh molecular weight polyethylene fibers;

The suture is the polyamide yarn of low melting point, and suture includes upper thread and baseline, the fusing point of suture for 80 DEG C~ 150 DEG C, low melting point polyamide yarn includes common yarn or core-spun yarn, and wherein core-spun yarn clad is low melting point polyamide, interior Core is other fibers;

The base material is nylon wire, terylene net, glass fiber woven cloth, carbon fiber woven cloth, fiberglass surfacing mat Or polyester non-woven fabric;

The single or multiple preforms for spreading seam are pressed into design requirement laying, are heated to the melting temperature of polyamide yarn, Apply 10~30 points of 0.05~0.1MPa of pressure and soaking time, the sizing of fiber preform body is realized after cooling with pressure.

The single or multiple preforms by seam is spread are heated above polyamide yarn by design requirement laying 2~5 DEG C of melting temperature is to improve fixed effect.

The present invention has the advantage that and advantageous effect,

Self-fixing fiber preform body proposed by the present invention is the preform that a kind of machine direction can be designed freely, can root It is cut out according to the mechanical property requirements of composite product different location, suitable for preparing with lower structure:(1) with rigidity Design Based on secondary load-carrying construction part;(2) open-celled structure reduces the stress concentration of tapping, on fuselage hatch door, porthole and wing Lid;(3) structure connection structure, optimization Multi-fasteners joint pin load distribution, extruding and bypass load distribution.The fiber being prepared is pre- Formed body passes through composite material liquid Transfer molding technique (RTM), vacuum suction technique (VARI) or Resin Film Infusion work The low cost manufacturing of composite material can be achieved in skill (RFI).Meanwhile suture can effectively inhibit the generation of layering and the expansion of crackle Exhibition improves the shock resistance of Stitched Composites laminate, improves the damage resistence and damage tolerance of material.

The present invention uses low melting point polyamide fiber to be had the following advantages as suture:(1) the polyamide suture of low melting point Viscosity is relatively low under molten condition, and cementability is good, and self-fixing can be realized without using setting agent, solves setting agent and uses process Middle uniformity problem more rambunctious;(2) suture melting rear surface frictional force release, tow are easier to be unfolded, thickness in monolayer drop It is low, while suture, in flat form, interlayer region is thinning, can improve the fiber volume fraction of composite material, improves composite material Mechanical property;(3) suture stress release in type-approval process, reduces fiber bending degree, and fiber straightness higher can improve The mechanical property that composite material is controlled by fiber;(4) suture is compacted under pressure in melting process of shaping, internal voids It is inhibited, substantially reduces the quantity of defect.

Composite material RTM technological requirements resin has relatively low viscosity under injection temperature, and traditional method for toughening is for example Addition nano particle can significantly improve the viscosity of resin, so as to influence the moulded manufacturability of resin.By the way that toughening body is introduced into Fiber preform body can improve the toughness of composite material, be the new route for realizing RTM forming composite toughenings.The present invention makes The polyamide suture surface active group of low melting point is significantly higher than conventional suture, and resin matrix is imitated with better toughening Fruit is remarkably improved the toughness of composite system, inhibits the formation of crack propagation and layering, and the damage for improving composite material is held Limit.

Specific embodiment

Using high-performance fiber as reinforcement, it is base material that the polyamide yarn of low melting point, which is suture, glass fabric etc., is adopted It is spread to seam to prepare automatically with fiber and performs order automatically for by designed paving seam path, obtain fiber preform body.

The type of the fiber includes the combination of any one or more following fiber:Carbon fiber, glass fibre, boron are fine Dimension, silicon carbide fibre, aramid fiber, Fypro, polyester fiber or superhigh molecular weight polyethylene fibers.

For the suture (including upper thread and baseline) using low melting point polyamide yarn, the fusing point of suture is 80 DEG C~150 ℃.Low melting point polyamide yarn includes common yarn and core-spun yarn, and wherein core-spun yarn clad is low melting point polyamide, and inner core is Other fibers.Fusing point is lower, sizing efficiency it is higher, energy consumption is lower, meet composite material it is durothermic on the basis of as far as possible Select lower melting-point suture.

The base material is nylon wire, terylene net, glass fiber woven cloth, carbon fiber woven cloth, fiberglass surfacing mat Or polyester non-woven fabric.

The single or multiple sub- preforms for spreading seam are pressed into design requirement laying, due to used materials statement surface state Difference, not up to good fixed effect, can be heated to more than suture melting temperature and shapes, and applies suitable pressure and protects Warm certain time realizes the sizing of fiber preform body after cooling with pressure.

Embodiment 1

T300 (6k) carbon fibre tow is selected, suture selects the polyamide yarn that fusing point is 85 DEG C, and base material selects glass cloth (EW100a), fiber lay down seam beamwidth is 1.8mm, and needle gage 7mm, fiber angles are 0 °, and the paving seam number of plies is 4 layers, is stitched through fiber lay down Equipment-laid stitches to obtain preform.

Embodiment 2

T700 (12k) carbon fibre tow is selected, suture selects the polyamide yarn that fusing point is 95 DEG C, and base material selects terylene sieve Net (250 mesh), it is 3.6mm that fiber lay down, which stitches beamwidth, and needle gage 5mm, the fiber lay down seam number of plies is 6 layers, spreads slit shape as annulus, angle For [60/-60/0/0/-60/60], wherein 0 ° is circumferentially direction, stitch to obtain circular ring shape through fiber lay down seam equipment-laid preforming Body.

Embodiment 3

Kevlar-29 (400tex) aramid fiber tow is selected, suture selects the polyamide yarn that fusing point is 115 DEG C, base Material selects nylon screen (250 mesh), and fiber lay down seam beamwidth is 2.7mm, and needle gage 5mm, the fiber lay down seam number of plies is 8 layers, and angle is [45/0/-45/90]s, stitch to obtain preform through fiber lay down seam equipment-laid.

Claims (2)

1. a kind of preparation method of the pre- toughened fiber preform of self-fixing, using fiber as reinforcement, yarn is suture, fabric For base material, spread automatically using fiber seam prepare it is standby stitch path by designed paving and perform order automatically, obtain fiber preform Body, it is characterized in that,
The type of the fiber includes the combination of any one or more following fiber:Carbon fiber, glass fibre, boron fibre, carbon SiClx fiber, aramid fiber, Fypro, polyester fiber or superhigh molecular weight polyethylene fibers;
The suture is the polyamide yarn of low melting point, and suture includes upper thread and baseline, and the fusing point of polyamide is 80 DEG C~150 DEG C, low melting point polyamide yarn includes common yarn or core-spun yarn, and wherein core-spun yarn clad is low melting point polyamide, and inner core is Other fibers;
The base material is nylon wire, terylene net, glass fiber woven cloth, carbon fiber woven cloth, fiberglass surfacing mat or poly- Ester non-woven fabrics;
By the single or multiple preforms for spreading seam by design requirement laying, the melting temperature of polyamide yarn is heated to, is applied 10~30 points of 0.05~0.1MPa of pressure and soaking time realize the sizing of fiber preform body after cooling with pressure.
2. a kind of preparation method of the pre- toughened fiber preform of self-fixing according to claim 1, it is characterized in that, it is described The single or multiple preforms by seam is spread by design requirement laying, be heated above the melting temperature 2~5 of polyamide yarn DEG C to improve fixed effect.
CN201711414921.2A 2017-12-22 2017-12-22 A kind of preparation method of the pre- toughened fiber preform of self-fixing CN108237739A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711414921.2A CN108237739A (en) 2017-12-22 2017-12-22 A kind of preparation method of the pre- toughened fiber preform of self-fixing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711414921.2A CN108237739A (en) 2017-12-22 2017-12-22 A kind of preparation method of the pre- toughened fiber preform of self-fixing

Publications (1)

Publication Number Publication Date
CN108237739A true CN108237739A (en) 2018-07-03

Family

ID=62700204

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711414921.2A CN108237739A (en) 2017-12-22 2017-12-22 A kind of preparation method of the pre- toughened fiber preform of self-fixing

Country Status (1)

Country Link
CN (1) CN108237739A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040074589A1 (en) * 2000-12-08 2004-04-22 Andreas Gessler Method for producing multilayer tailored fiber placement (tfp) preforms using meltable fixing fibers
CN107206710A (en) * 2014-11-04 2017-09-26 贝卡尔特公司 Enhancing fabric for strengthening shock resistance or structure composite part

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040074589A1 (en) * 2000-12-08 2004-04-22 Andreas Gessler Method for producing multilayer tailored fiber placement (tfp) preforms using meltable fixing fibers
CN107206710A (en) * 2014-11-04 2017-09-26 贝卡尔特公司 Enhancing fabric for strengthening shock resistance or structure composite part

Similar Documents

Publication Publication Date Title
US20140020825A1 (en) Nanotube-enhanced interlayers for composite structures
US20080193709A1 (en) Fiber Products, Prepregs, Composites and Method of Producing Same
US8236410B2 (en) Reinforcing fiber base material for preforms, process for the production of laminates thereof, and so on
DE102005028765B4 (en) Method for producing a reinforcing profile
Cox et al. Handbook of analytical methods for textile composites
US5888609A (en) Planar porous composite structure and method for its manufacture
AU2009201820B2 (en) Reinforcing fiber substrate, composite material and method for producing the same
DE60319617T2 (en) Molding compound
ES2391828T3 (en) Preform, PRF and processes to produce them
CA2615874C (en) Method for producing single- or multi-layered fibre preforms by the tfp process
KR101784534B1 (en) Thermoplastic composites and methods of making and using same
US20090194906A1 (en) Process of draping a non-crimp fabric over a forming tool
US4913937A (en) Composite articles using meltable resin holding threads
JP6020612B2 (en) Sheet for fiber-reinforced plastic molded body and molded body thereof
Hu 3-D fibrous assemblies: properties, applications and modelling of three-dimensional textile structures
CN100548643C (en) Tufted composite laminate
JP2009143218A (en) Highly porous interlayer to toughen liquid-molded fabric-based composite
JP2003080607A (en) Preform, frp comprising the same and method for manufacturing them
KR101479805B1 (en) Two-sided single-needle under thread stitching process
CN102218828A (en) Method for preparing continuous fiber multiaxial fabric reinforced thermoplastic composite material
AU2002326922B2 (en) Three-dimensional knit spacer fabric sandwich composite
Alagirusamy et al. Hybrid yarns and textile preforming for thermoplastic composites
KR101434077B1 (en) Method for producing a flat semi-finished product from fiber composite material
CA2580641C (en) Methods and preforms for forming composite members with interlayers formed of nonwoven, continuous materials
JP2009511297A (en) Bonding method of dry reinforcing fiber

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination