CN111331937A - Composite material bracket - Google Patents

Composite material bracket Download PDF

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Publication number
CN111331937A
CN111331937A CN202010111700.3A CN202010111700A CN111331937A CN 111331937 A CN111331937 A CN 111331937A CN 202010111700 A CN202010111700 A CN 202010111700A CN 111331937 A CN111331937 A CN 111331937A
Authority
CN
China
Prior art keywords
layer
resin
light
curing agent
fiber reinforced
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN202010111700.3A
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Chinese (zh)
Inventor
崔佳
李丹
丛嘉鹏
王建民
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenyang China Aviation Meritt Industry Co ltd
Original Assignee
Shenyang China Aviation Meritt Industry Co ltd
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 Shenyang China Aviation Meritt Industry Co ltd filed Critical Shenyang China Aviation Meritt Industry Co ltd
Priority to CN202010111700.3A priority Critical patent/CN111331937A/en
Publication of CN111331937A publication Critical patent/CN111331937A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered 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
    • B32B5/02—Layered 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/60—Riveting or staking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
    • B32B17/064—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B25/08—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/38—Layered products comprising a layer of synthetic resin comprising epoxy resins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered 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
    • B32B5/18—Layered 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 features of a layer of foamed material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered 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
    • B32B5/22—Layered 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
    • B32B5/24—Layered 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
    • B32B5/26—Layered 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D19/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02—Macromolecular compounds
    • C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B26/14—Polyepoxides
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/08—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding porous substances
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/02—Coating on the layer surface on fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0207—Materials belonging to B32B25/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/718—Weight, e.g. weight per square meter
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/732—Dimensional properties
    • B32B2307/734—Dimensional stability
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00009—Materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
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    • C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
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    • Y02W30/80—Packaging reuse or recycling, e.g. of multilayer packaging

Abstract

A composite material bracket comprises a fiber reinforced layer, a light resin material layer and a surface layer from bottom to top in sequence, wherein the thickness of the fiber reinforced layer is 0.2-1 mm; the thickness of the light resin material layer is 100-200mm, and the surface layer is a soft rubber layer. Wherein the light resin material comprises: matrix: 40-55 parts; powdery filler: 40-55 parts; light filler: 1-2 parts; silicon dioxide: 0.3-1.5 parts; whisker: 1-10 parts; the composite material with the honeycomb structure is formed, the overall strength of the material is improved, the density of the bracket material is reduced, the material can be recycled, the cost is low, the energy is saved, the environment is protected, and the service life is prolonged.

Description

Composite material bracket
Technical Field
The invention belongs to the technical field of composite materials, and particularly relates to a composite material bracket.
Background
The existing pinus koraiensis is used as a raw material, a pinus koraiensis bracket is formed by cutting, processing and screw connection, and the surface of the pinus koraiensis bracket is wrapped by an aviation-grade sponge rubber plate and is connected in a screw riveting mode. The main problems and disadvantages are that:
1. the Korean pine is used as a bracket, and the bearing is limited.
2. The red pine wood as one kind of wood has short service life, is easy to be decomposed and slag is easy to fall off after being used for one year, and the performance of the red pine wood is influenced.
3. The aerial sponge rubber plate and the Korean pine wood are fixed on the surface of the Korean pine wood through screws, and if the sponge rubber plate is replaced, the original bolt holes are not suitable for screwing again.
4. The red pine wood as one kind of wood cannot be recycled, and is not beneficial to energy conservation and environmental protection.
5. When the red pine is used as the bracket, the working surface needs to be provided with an aerial sponge rubber plate layer, the sponge rubber plate is high in cost, and the sponge rubber plate needs to be riveted to the red pine bracket through secondary processing.
Disclosure of Invention
Aiming at the technical problems, the invention provides the composite material bracket which is composed of the fiber reinforced layer, the light resin material layer and the surface layer, so that the overall strength of the material is improved, the material can be recycled, the energy is saved, the environment is protected, and the service life is prolonged.
The purpose of the invention is realized by the following technical scheme:
the composite material bracket comprises a fiber reinforced layer, a light resin material layer and a surface layer from bottom to top in sequence, wherein the thickness of the fiber reinforced layer is 0.2-1 mm; the thickness of the light resin material layer is 100-200mm, and the surface layer is a soft rubber layer.
Preferably, the fiber reinforced layer is composed of a glass fiber check cloth layer, resin and a curing agent, the number of the glass fiber check cloth layer is 2-5, and the gram weight of the glass fiber check cloth is 80-140 g/m 2.
Preferably, the forming process of the fiber reinforced layer comprises the following steps:
1) coating and evenly coating the resin and the curing agent which are evenly mixed on the surface of one side of the glass fiber square cloth layer, wherein the coated surface density is 100g/m 2;
2) the surface coated with resin faces upwards, and 2-5 layers of glass fiber check cloth coated with resin are tiled layer by layer.
Preferably, the proportion of the light resin material is as follows:
matrix: 40-55 parts;
powdery filler: 40-55 parts;
light filler: 1-2 parts;
silicon dioxide: 0.3-1.5 parts;
whisker: 1-10 parts;
the light resin material of the composite material bracket comprises a matrix, a light resin material and a curing agent;
the powdery filler is selected from calcium carbonate, calcium sulfate, calcium oxide, quartz powder, aluminum oxide or aluminum hydroxide;
the light filler is foaming particles;
the whisker is selected from calcium sulfate whisker, potassium titanate whisker or silicon carbide whisker, and the length of the whisker is selected from 20-300 microns.
Preferably, the resin is an unsaturated resin or an epoxy resin.
Preferably, the curing agent is an epoxy resin curing agent or an unsaturated resin curing agent; wherein: the epoxy resin curing agent is alicyclic amine or aliphatic amine; the curing agent of the unsaturated resin is cyclohexanone peroxide, dibenzoyl peroxide, methyl ethyl ketone peroxide, methyl isobutyl ketone peroxide, benzoyl peroxide or cumene hydroperoxide.
Preferably, the particle size of the powdery filler is 0.015-0.100 mm.
Preferably, the thickness of the surface layer is 5-15 mm.
Preferably, the soft rubber layer is a sponge rubber plate or a casting polyurethane elastomer.
The forming process of the composite material bracket comprises the following steps:
(1) manufacturing a fiber reinforced layer;
(2) attaching the fiber reinforced layer to the inner surface of a product mold cavity, and standing for 0.5-1 h;
(3) adding a light resin material into a mold cavity adhered with the fiber reinforced layer, compacting, filling according to the density of 0.6-0.7 g/cm3, standing for 4-8 hours at room temperature, or standing for 2 hours at 40-80 ℃;
(4) and fixing the surface layer on the surface of the light resin material by using a countersunk head screw to form the bracket mould.
The invention has the beneficial effects that:
1. the bracket comprises a fiber reinforced layer, a light resin material layer and a surface layer, the thicknesses of the fiber reinforced layer, the light resin material layer and the surface layer and the material of the surface layer are limited, the overall strength of the material is improved, the density of the bracket material is reduced, the bracket can be recycled, the cost is low, the bracket is energy-saving and environment-friendly, and the service life is prolonged.
2. The light resin material, the fiber reinforced layer and the rubber plate polyurethane elastomer are adopted as basic materials, and in the preparation process, the light resin material is filled in the cavity to generate the composite material with a brand new structure.
3. In the light resin material bracket, due to the addition of the light foaming particles, the overall density is not much different from that of the Korean pine, the density of the composite material bracket is 0.6-0.7 g/cm3, and the density of the Korean pine is 0.5-0.7 g/cm 3. The invention has the advantages of easy production and processing, one-step forming and simple process. The composite material bracket has repairability, and does not absorb water or swell due to moisture. Light weight and convenient carrying.
4. The bracket surface of the invention is provided with the soft rubber layer to replace an aviation sponge rubber plate, the soft rubber layer and the composite material bracket are integrally formed, the bonding strength is high, no layering is needed, riveting is not needed, and the process is saved.
Detailed Description
The present invention will be described in detail with reference to examples.
Example 1: the invention relates to a composite material bracket which sequentially comprises a fiber reinforced layer, a light resin material layer and a surface layer from bottom to top, wherein the thickness of the fiber reinforced layer is 1 mm; the thickness of the light resin material layer is 150mm, and the surface layer is a soft rubber layer. The soft rubber layer in this example is a sponge rubber plate.
The fiber reinforced layer comprises a glass fiber square cloth layer, resin and a curing agent, the number of the glass fiber square cloth layer is 2, and the gram weight of the glass fiber square cloth is 140g/m2。
The forming process of the fiber reinforced layer comprises the following steps: 1) coating the surface of one side of the glass fiber square cloth layer with uniformly mixed resin and curing agent, and uniformly coating, wherein the coated surface density is 100g/m2(ii) a 2) The resin-coated surface was faced upward, and 2 resin-coated glass fiber scrims were stackedLaying is carried out, four corners of each layer of glass fiber check cloth are aligned, and each layer of glass fiber check cloth keeps flat when laid and cannot be wrinkled.
The proportion of the light resin material in the embodiment is as follows:
matrix: 40 parts of a mixture;
powdery filler: 40 parts of a mixture;
light filler: 1 part;
silicon dioxide: 0.3 part;
whisker: 1 part;
the matrix in this example comprises a resin and a curing agent; the resin is epoxy resin; the curing agent is an epoxy resin curing agent; the epoxy resin curing agent is alicyclic amine or aliphatic amine; the powdery filler is selected from calcium carbonate, calcium sulfate or calcium oxide; the particle size of the powdery filler is 0.015-0.100 mm.
The light filler is foaming particles;
the whisker is calcium sulfate whisker, and the length of the whisker is 20-300 microns.
The thickness of the facing layer in this example was 15 mm.
The molding process of the composite material bracket comprises the following steps:
(1) manufacturing a fiber reinforced layer;
(2) attaching the fiber reinforced layer to the inner surface of the product mold cavity, and standing for 0.7 h;
(3) adding a light resin material into a mold cavity adhered with the fiber reinforced layer, compacting, filling according to the density of 0.6-0.7 g/cm3, and standing for 4-8 hours at room temperature (20-25 ℃);
(4) and fixing the surface layer on the surface of the light resin material by using a countersunk head screw to form the bracket mould.
Example 2: the difference between this example and example 1 is: the thickness of the fiber reinforced layer is 0.2 mm; the thickness of the light resin material layer is 100mm, the surface layer is a casting polyurethane elastomer, and the light resin material layer is a polyurethane casting material which is a commercially available existing material.
The fiber reinforced layer comprises a glass fiber square cloth layer, resin and a curing agent, wherein the number of the glass fiber square cloth layer is5 layers, the gram weight of the glass fiber check cloth is 80g/m2。
The forming process of the fiber reinforced layer comprises the following steps: 1) coating the surface of one side of the glass fiber square cloth layer with uniformly mixed resin and curing agent, and uniformly coating, wherein the coated surface density is 100g/m2(ii) a 2) The surface of coating resin is towards the top, and 5 layers of glass fiber check cloth coated with resin are stacked and laid layer by layer, so that the four corners of each layer of glass fiber check cloth are aligned, and each layer of glass fiber check cloth is kept flat and cannot be wrinkled when laid.
The proportion of the light resin material in the embodiment is as follows:
matrix: 55 parts of (1);
powdery filler: 55 parts of (1);
light filler: 2 parts of (1);
silicon dioxide: 1.5 parts;
whisker: 10 parts of (A);
the resin in the matrix is unsaturated resin; the curing agent is an unsaturated resin curing agent; the curing agent of the unsaturated resin is cyclohexanone peroxide, dibenzoyl peroxide, methyl ethyl ketone peroxide, methyl isobutyl ketone peroxide, benzoyl peroxide or cumene hydroperoxide.
The powdery filler is selected from quartz powder, aluminum oxide or aluminum hydroxide; the particle size of the powdery filler is 0.015-0.100 mm.
The whisker is selected from potassium titanate whisker, and the length of the whisker is selected from 20-300 microns.
The thickness of the facing layer in this example was 10 mm.
The molding process of the composite material bracket comprises the following steps:
(1) manufacturing a fiber reinforced layer;
(2) attaching the fiber reinforced layer to the inner surface of a product mold cavity, and standing for 1 h;
(3) adding a light resin material into a mold cavity adhered with the fiber reinforced layer, compacting, filling according to the density of 0.6-0.7 g/cm3, and standing for 2 hours at the temperature of 40-80 ℃;
(4) and fixing the surface layer on the surface of the light resin material by using a countersunk head screw to form the bracket mould.
Example 3: the difference between this example and example 1 is: the thickness of the fiber reinforced layer is 0.6 mm; the thickness of the light resin material layer is 200mm, and the surface layer is a sponge rubber plate.
The fiber reinforced layer comprises a glass fiber square cloth layer, resin and a curing agent, the number of the glass fiber square cloth layer is 3, and the gram weight of the glass fiber square cloth is 80g/m2。
The forming process of the fiber reinforced layer comprises the following steps: 1) coating the surface of one side of the glass fiber square cloth layer with uniformly mixed resin and curing agent, and uniformly coating, wherein the coated surface density is 100g/m2(ii) a 2) The surface of coating resin is towards the top, and 3 layers of glass fiber check cloth of coating resin are piled up the successive layer and are spread, guarantee that the four corners of every layer of glass fiber check cloth aligns, keep leveling when every layer of glass fiber check cloth is spread, can not have the fold.
The proportion of the light resin material in the embodiment is as follows:
matrix: 50 parts of a mixture;
powdery filler: 45 parts of (1);
light filler: 1.6 parts;
silicon dioxide: 0.8 part;
whisker: 6 parts of (1);
the resin in the matrix is unsaturated resin; the curing agent is an unsaturated resin curing agent; the curing agent of the unsaturated resin is methyl ethyl ketone peroxide, methyl isobutyl ketone peroxide, benzoyl peroxide or cumene hydroperoxide.
The powdery filler is quartz powder; the particle size of the powdery filler is 0.015-0.100 mm.
The whisker is selected from potassium titanate whisker or silicon carbide whisker, and the length of the whisker is selected from 20-300 microns.
The thickness of the facing layer in this example was 5 mm.
The molding process of the composite material bracket comprises the following steps:
(1) manufacturing a fiber reinforced layer;
(2) attaching the fiber reinforced layer to the inner surface of the product mold cavity, and standing for 0.5 h;
(3) adding a light resin material into a mold cavity adhered with the fiber reinforced layer, compacting, filling according to the density of 0.6-0.7 g/cm3, and standing for 2 hours at the temperature of 40-80 ℃;
(4) and fixing the surface layer on the surface of the light resin material by using a countersunk head screw to form the bracket mould.
The whisker is silicon carbide whisker, and the length of the whisker is 20-300 microns.
It should be understood that the detailed description of the present invention is only for illustrating the present invention and is not limited by the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention can be modified or substituted equally to achieve the same technical effects; as long as the use requirements are met, the method is within the protection scope of the invention.

Claims (10)

1. A composite carrier, comprising: the composite material comprises a fiber reinforced layer, a light resin material layer and a surface layer from bottom to top in sequence, wherein the thickness of the fiber reinforced layer is 0.2-1 mm; the thickness of the light resin material layer is 100-200mm, and the surface layer is a soft rubber layer.
2. The composite carrier of claim 1, wherein: the fiber reinforced layer is composed of a glass fiber check cloth layer, resin and a curing agent, the number of the glass fiber check cloth layer is 2-5, and the gram weight of the glass fiber check cloth is 80-140 g/m 2.
3. The composite carrier of claim 2, wherein: the forming process of the fiber reinforced layer comprises the following steps:
1) coating and evenly coating the resin and the curing agent which are evenly mixed on the surface of one side of the glass fiber square cloth layer, wherein the coated surface density is 100g/m 2;
2) the surface coated with resin faces upwards, and 2-5 layers of glass fiber check cloth coated with resin are tiled layer by layer.
4. The composite carrier of claim 1, wherein: the light resin material comprises the following components in percentage by weight:
matrix: 40-55 parts;
powdery filler: 40-55 parts;
light filler: 1-2 parts;
silicon dioxide: 0.3-1.5 parts;
whisker: 1-10 parts;
the light resin material of the composite material bracket comprises a matrix, a light resin material and a curing agent;
the powdery filler is selected from calcium carbonate, calcium sulfate, calcium oxide, quartz powder, aluminum oxide or aluminum hydroxide;
the light filler is foaming particles;
the whisker is selected from calcium sulfate whisker, potassium titanate whisker or silicon carbide whisker, and the length of the whisker is selected from 20-300 microns.
5. The composite carrier of claim 4, wherein: the resin is unsaturated resin or epoxy resin.
6. The composite carrier of claim 4, wherein: the curing agent is an epoxy resin curing agent or an unsaturated resin curing agent; wherein: the epoxy resin curing agent is alicyclic amine or aliphatic amine; the curing agent of the unsaturated resin is cyclohexanone peroxide, dibenzoyl peroxide, methyl ethyl ketone peroxide, methyl isobutyl ketone peroxide, benzoyl peroxide or cumene hydroperoxide.
7. The composite carrier of claim 4, wherein: the particle size of the powdery filler is 0.015-0.100 mm.
8. The composite carrier of claim 1, wherein: the thickness of surface course is 5 ~ 15 mm.
9. The composite carrier of claim 1, wherein: the soft rubber layer is a sponge rubber plate or a casting type polyurethane elastomer.
10. A process for forming a composite carrier as claimed in any one of claims 1 to 9, wherein: the method comprises the following steps:
(1) manufacturing a fiber reinforced layer;
(2) attaching the fiber reinforced layer to the inner surface of a product mold cavity, and standing for 0.5-1 h;
(3) adding a light resin material into a mold cavity adhered with the fiber reinforced layer, compacting, filling according to the density of 0.6-0.7 g/cm3, standing for 4-8 hours at room temperature, or standing for 2 hours at 40-80 ℃;
(4) and fixing the surface layer on the surface of the light resin material by using a countersunk head screw to form the bracket mould.
CN202010111700.3A 2020-02-24 2020-02-24 Composite material bracket Pending CN111331937A (en)

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CN113183386A (en) * 2021-04-13 2021-07-30 山西凝固力新型材料股份有限公司 High-compression-resistance fiber-reinforced polyurethane composite board and preparation method thereof

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CN112318786A (en) * 2020-10-23 2021-02-05 沈阳中航迈瑞特工业有限公司 Preparation method and process of resin-based composite material transition layer applied to surface resin mold manufacturing
CN113183386A (en) * 2021-04-13 2021-07-30 山西凝固力新型材料股份有限公司 High-compression-resistance fiber-reinforced polyurethane composite board and preparation method thereof

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Application publication date: 20200626