CN107877991A - A kind of high rigidity Thick Composite and preparation method thereof - Google Patents

A kind of high rigidity Thick Composite and preparation method thereof Download PDF

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Publication number
CN107877991A
CN107877991A CN201711056553.9A CN201711056553A CN107877991A CN 107877991 A CN107877991 A CN 107877991A CN 201711056553 A CN201711056553 A CN 201711056553A CN 107877991 A CN107877991 A CN 107877991A
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CN
China
Prior art keywords
layer
plate core
thermoplastic resin
heating
strengthening course
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CN201711056553.9A
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Chinese (zh)
Inventor
黄险波
刘玲
孙雅杰
范欣愉
熊鑫
李晓拓
黄有平
陈涛
陈大华
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GUANGZHOU KINGFA CARBON FIBER NEW MATERIAL DEVELOPMENT Co Ltd
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GUANGZHOU KINGFA CARBON FIBER NEW MATERIAL DEVELOPMENT Co Ltd
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Priority to CN201711056553.9A priority Critical patent/CN107877991A/en
Publication of CN107877991A publication Critical patent/CN107877991A/en
Pending legal-status Critical Current

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    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • 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
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/067—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of fibres or filaments
    • 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
    • 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
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • 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
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • 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
    • B32B3/26—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 particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/266—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 particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/02—Methods 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
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/08—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the cooling method
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods 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
    • 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
    • B32B5/12—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 characterised by the relative arrangement of fibres or filaments of different layers, e.g. the fibres or filaments being parallel or perpendicular to each other
    • 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
    • B32B5/245—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 being a foam 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
    • 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
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—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
    • B32B7/04—Interconnection of layers
    • B32B7/10—Interconnection of layers at least one layer having inter-reactive properties
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B2037/0092—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding in which absence of adhesives is explicitly presented as an advantage
    • 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
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/021—Fibrous or filamentary layer
    • B32B2260/023—Two or more layers
    • 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
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04—Impregnation, embedding, or binder material
    • B32B2260/046—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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0276—Polyester 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
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/546—Flexural strength; Flexion stiffness
    • 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
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness

Abstract

A kind of high rigidity Thick Composite and preparation method thereof, including plate core, plate core upper and lower surface connects surface layer respectively, the material of the plate core is the thermoplastic resin of foamed dose of foaming, surface layer includes adhesive media layer, strengthening course and protective layer, strengthening course is connected on a surface of adhesive media layer, protective layer is connected in reinforcement layer surface, the corresponding surface of the another side of adhesive media layer and plate core is complex as a whole, strengthening course is laid by single or multiple lift continuous fiber reinforced thermoplastic resin prepreg lamella and formed, the material of the adhesive media layer is porous air pervious material, the adhesive media aspect is partially submerged into the one side of strengthening course in the continuous fiber reinforced thermoplastic resin prepreg lamella in strengthening course, the adhesive media aspect is partially submerged into plate core to the one side of plate core.The high rigidity Thick Composite not only maintain high intensity, high impact resistance and it is light the advantages of, also with high rigidity, high-peeling strength, high chinch nail power and high processing efficiency.

Description

A kind of high rigidity Thick Composite and preparation method thereof
Technical field
The present invention relates to a kind of high rigidity Thick Composite and preparation method thereof.
Background technology
Thermoplastic composite material board has wider application because having the high performance of light weight, intensity, with fortune Exemplified by defeated industry, such as new energy lorry, the carriage of light weight and the high thermoplastic composite of intensity can significantly extend new energy The endurance of source lorry and the shock resistance in compartment, the carriage in the compartment of lorry is frequently with thermoplastic composite honeybee at present Nest plate, although the modulus of thermoplastic composite cellular board is higher, the characteristics of pore structure loose due to honeycomb core, although can Panel weight is greatly reduced, but when installing parts, such as installation frame, section bar, lock, handle metal stress members When, connect easily be recessed at stress, leak, chinch nail power it is small, especially for the door-plate in compartment, because its chinch nail power is small, sheet material is light, thick Degree not enough causes rigid deficiency, therefore, in frequent folding and collision door-plate, easily because its metalwork comes off, connecting hole expands Greatly, the problems such as door-plate is loose.
Chinese patent 201610103703.6 discloses a kind of fiber reinforcement building template and preparation method thereof, and its fiber increases Strong building template includes wooden plate core, and plate core upper and lower surface is connected to by continuous fiber reinforced thermoplastic prepreg lamella The surface layer being compounded to form, is also connected as one between surface layer and plate core by adhesive linkage, and adhesive linkage is non-woven fabrics, surface layer, plate core And adhesive linkage is complex as a whole by hot pressing, although this kind of fiber reinforcement building template has higher MOR, quiet Qu Mo The advantages of measuring and be light, but because it uses wooden plate core, when such a template is applied in carrier, because being placed on In the environment to expose to the sun and rain, wood based panel wicking is easily caused to receive compared with juicy, so as to cause the overall bending strength of template, surface layer Peel strength decline to a great extent, while the chinch nail power for also resulting in template is greatly reduced, and causes metal parts mounted thereto Easily come off；It can be seen from the narration of the preparation method in open file, the preparation of plate core, the preparation of surface layer and plate core and face The compound of layer is carried out separately, and process is discontinuous, it is necessary to which artificial intervention is interfered, therefore processing efficiency is low, is not suitable for Produce in enormous quantities；In addition, because the Combined Mining of surface layer, adhesive linkage and plate core is molded with traditional hot pressing direct combination, therefore, glue The connection for connecing layer and surface layer and plate core is only that surface is combined with the surface, and for the slab for needing high rigidity, is made for a long time During, surface layer is easily layered and peeled off with plate core, and peel strength is low, and therefore, the preparation method in file disclosed above is not Preparation suitable for preparing the sheet material that thickness is larger and rigid requirements are higher；Further, since the plate core system in file disclosed above Need to use a large amount of adhesives when standby, thus it is larger into plate taste, not environmentally.
The content of the invention
The present invention is intended to provide a kind of water absorption rate is low and remains to keep high bending strength, high-peeling strength after absorbing water, high embraces Follow closely the high rigidity Thick Composite of power and the preparation method of high rigidity Thick Composite high in machining efficiency.
A kind of high rigidity Thick Composite of the present invention, including plate core, the upper and lower surface of plate core are connected to Surface layer, the material of the plate core are the thermoplastic resin of foamed dose of foaming, and the surface layer includes adhesive media layer, reinforcement Layer and protective layer, connect strengthening course on a surface of adhesive media layer, protective layer are connected on the surface of strengthening course, by glue The another side of viscous dielectric layer and the corresponding surface of plate core are complex as a whole, and the strengthening course is by single or multiple lift continuous lod warm Plastic resin prepreg lamella is laid to be formed, and the material of the adhesive media layer is porous air pervious material, the adhesive media layer It is described gluing in the continuous fiber reinforced thermoplastic resin prepreg lamella being partially submerged into face of the one side of strengthening course in strengthening course Dielectric layer is partially submerged into plate core in face of the one side of plate core.
A kind of preparation method of high rigidity Thick Composite of the present invention, its step are as follows：
1）The preparation of surface layer：Protective layer, strengthening course, adhesive media layer are from top to bottom laid in order, wherein, strengthening course by When multilayer continuous fiber reinforced thermoplastic resin prepreg lamella forms, multilayer continuous fiber reinforced thermoplastic resin prepreg From top to bottom order is laid layer；The protective layer being integrated, strengthening course and adhesive media layer will be sequentially laid to be put into hot press Row hot pressing is compounded to form surface layer, then winds standby；The plane clearance of hot press and the consistency of thickness of surface layer, continuous production face The speed of layer is 1.5m/min ~ 12m/min；
2）The preparation of plate core：Thermoplastic resin added with foaming agent is added into screw extruder, screw extruder is by thermoplastic Property resin squeeze into the heated mould intracavitary of shaping plate core, with the continuous work of screw extruder, promote the plate core of shaping leave plus Hot-die chamber, gap and the plate core consistency of thickness of die cavity are heated, the heating of screw extruder will be less than by heating the heating-up temperature of die cavity Temperature, the speed of continuous production plate core is 0.5m/min ~ 3m/min；
3）The preparation of slab：It is in the heating roller arranged up and down that a pair are provided with after die cavity is heated, the heating roller in top Top and the surface layer for being respectively arranged below feeding roller, winding being placed with feeding roller of heating roller in bottom, winding The initiating terminal of surface layer pull out and on heating roller corresponding to being entangled in, the plate core sent out by heating die cavity is directly entered two heating rollers Between, while two heating rollers rotate the surface layer for making to be entangled in thereon and are compounded on the corresponding surface of plate core, slab are formed, with screw rod The continuous extrusion of extruder, slab continues reach and cooled down into cooler-shaper intracavitary, finally with screw extruder Continuous extrusion is cut after the slab of cooler-shaper intracavitary is sent out into cooling and shaping die cavity, the gap between two heating rollers With the consistency of thickness of slab；
4）Until after the thermoplastic resin in screw extruder is extruded completely, screw extruder is out of service, completes all slabs Continuous maching.
A kind of high rigidity Thick Composite of the present invention and preparation method thereof, due to the company by screw extruder Continuous extrusion and the mutual synergy of heating die cavity, heating roller and cooling and shaping die cavity, are carried out continuously the processing of slab, It is high in machining efficiency without artificial interference, it is adapted to produce in enormous quantities；In the preparation of slab, by two heating rollers in plate core table Face rolls laying surface layer, so as to effectively solve at this stage because sheet material is blocked up（The thick sheet material such as 8mm ~ 200mm）And use and pass The lamination that system hot pressing compound tense occurs, the high rigidity of slab is effectively ensured, and because uses the thermoplasticity of foaming Resin makes plate core, and its water absorption rate is very low, therefore, slab is kept lightweight, moreover it is possible to make this hard solid, thick Plate has higher rigidity, to ensure the connection of metal parts, it is ensured that and there is higher chinch nail power, avoid coming off for metal parts, In addition, being combined by the solid plate core of hard with the surface layer containing continuous fiber reinforced thermoplastic resin prepreg lamella, still can Enough ensure that slab has high intensity, high-modulus and high shock resistance；Due to surface layer process velocity for 1.5m/min ~ 12m/min, the process velocity for forming plate core is 0.5m/min ~ 3m/min, therefore can ensure the continuous lod in surface layer The upper and lower surface of thermoplastic resin in thermoplastic resin prepreg lamella and the plate core between two heating rollers can melt Change, thermoplastic resin is fully infiltrated into as made from porous air pervious material in adhesive media layer, so that adhesive media layer It is partially submerged into obverse continuous fiber reinforced thermoplastic resin prepreg lamella and is partially submerged into obverse plate core, treats Formed to interweave after cooling, between the meeting of adhesive media layer and continuous fiber reinforced thermoplastic resin prepreg lamella and plate core and overlap knot Structure, the locking of physical mechanical is realized, the intensity than being bonded against molecular force is much bigger, so that the bonding of surface layer and plate core is strong Degree is substantially improved, and significantly strengthens the peel strength between surface layer and plate core, coordinates with the high rigidity of slab, it is sufficient to effectively avoid Surface layer inside and the lamination between surface layer and plate core, meanwhile, because having above-mentioned surface layer process velocity, therefore can be effective Avoid the part of adhesive media layer insertion continuous fiber reinforced thermoplastic resin prepreg lamella excessive, after the completion of preventing hot pressing It is very few and can not subsequently have with plate core that adhesive media layer exposes part to continuous fiber reinforced thermoplastic resin prepreg lamella Effect connection；Connected further, since plate core has all been abandoned with the making of surface layer using adhesive, thus the smell of sheet forming it is small, It is more environmentally-friendly.
Brief description of the drawings
Fig. 1 is high rigidity Thick Composite structural representation of the present invention.
Fig. 2 is the flow process chart of the present invention.
Embodiment
A kind of high rigidity Thick Composite, as depicted in figs. 1 and 2, including plate core 1, the upper and lower surface of plate core 1 connect respectively Surface layer is connected to, the material of the plate core 1 is the thermoplastic resin of foamed dose of foaming, and the surface layer includes adhesive media layer 2nd, strengthening course 3 and protective layer 4, strengthening course 3 is connected on a surface of adhesive media layer 2, is connected on the surface of strengthening course 3 Protective layer 4, the another side of adhesive media layer 2 and the corresponding surface of plate core 1 are complex as a whole, the strengthening course 3 is by individual layer or more Layer continuous fiber reinforced thermoplastic resin prepreg lamella is laid to be formed, and the material of the adhesive media layer 2 is porous breathable material Material, the adhesive media layer 2 are partially submerged into the continuous fiber reinforced thermoplastic resin in strengthening course 3 in face of the one side of strengthening course 3 In prepreg lamella, the adhesive media layer 2 is partially submerged into plate core 1 in face of the one side of plate core.
The protective layer 4 is film, composite membrane or compound base fabric etc., the material of protective layer 4 be selected from EVA, PE, PP, One or more combinations in PET, PA, aluminium foil, it can make plate forming sheet material that there is higher ageing resistance, wearability, heat-resisting The premium properties such as property and corrosion resistance, significantly extend the service life of sheet material.
The thickness of the strengthening course 3 is 0.3mm ~ 1mm, as 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm or 1.0mm etc., surface density are the g/m of 150g/m2 ~ 15002, such as 150 g/m2、200 g/m2、250 g/m2、300 g/m2、 350 g/m2、400 g/m2、450 g/m2、500 g/m2、550 g/m2、600 g/m2、650 g/m2、700 g/m2、750 g/ m2、800 g/m2、850 g/m2、900 g/m2、950 g/m2、1000 g/m2、1100 g/m2、1200 g/m2、1300 g/m2、 1400 g/m2Or 1500 g/m2Deng.
The strengthening course 3 is combined by two layers to four layer of continuous fiber reinforced thermoplastic resin prepreg lamella, described Continuous fiber reinforced thermoplastic resin prepreg lamella is combined by unidirectional continuous fiber and thermoplastic resin matrix, strengthening course 3 by multilayer continuous fiber reinforced thermoplastic resin prepreg lamella when being combined, adjacent continuous fiber reinforced thermoplastic tree The ply stacking angle of fat prepreg lamella is different, when strengthening course 3 is answered by two layers of continuous fiber reinforced thermoplastic resin prepreg lamella When conjunction forms, ply stacking angle is 0 °/90 ° or 90 °/0 ° etc., when strengthening course 3 is pre- by three layers of continuous fiber reinforced thermoplastic resin When leaching tablet layer is combined, ply stacking angle is 0 °/90 °/0 ° or 90 °/0 °/90 ° etc., when strengthening course 3 is continuous fine by four layers When dimension enhancing thermoplastic resin prepreg lamella is combined, ply stacking angle is 0 °/90 °/90 °/0 ° or 90 °/0 °/0 °/90 ° Deng, above-mentioned ply stacking angle is not limited in actual production, adjacent continuous fiber reinforced thermoplastic resin prepreg lamella Ply stacking angle is set according to being actually needed, and only needs the ply stacking angle of symmetrical layers consistent, to ensure in the same direction Intensity, based on the gross weight of individual layer continuous fiber reinforced thermoplastic resin preliminary-dip piece lamella, the percentage by weight of continuous fiber is 40wt% ~ 80wt%, such as 40 wt%, 45 wt%, 50 wt%, 55 wt%, 60 wt%, 65 wt%, 70 wt%, 75 wt%, 80 wt% Deng, preferably 55wt% ~ 65wt%, the percentage by weight of thermoplastic resin matrix is 20wt% ~ 60wt%, such as 20 wt%, 30 wt%, 35 Wt%, 40 wt%, 45 wt%, 50 wt%, 55 wt%, 60 wt% etc., preferably 35wt% ~ 45wt%.
The material of the continuous fiber is selected from glass fibre, carbon fiber, aramid fiber, basalt fibre, silicon carbide fibre In one or more combinations, a diameter of 5 μm ~ 20 μm of continuous fiber, such as 5 μm, 8 μm, 10 μm, 14 μm, 16 μm, 18 μm, 20 μ M etc..The thermoplastic resin matrix is selected from polyethylene, polypropylene, polyamide, polyethylene reclaimed materials, polypropylene reclaimed material, polyamides One or more combinations in amine reclaimed materials.
The adhesive media layer 2 is selected from PET, PA, viscose fiber for non-woven fabrics or tissue paper etc., the material of the non-woven fabrics In one or more combinations, the type of non-woven fabrics is needle punched non-woven fabrics, spunlace non-woven cloth or hot rolling spun-bonded non-woven fabrics.The glue The surface density of viscous dielectric layer is 30 g/m2The g/m of ＜ α≤502, such as 30 g/m2、31 g/m2、35 g/m2、37 g/m2、40 g/ m2、42 g/m2、44 g/m2、47 g/m2、48 g/m2Or 50 g/m2Deng the g/m of, preferably α=402, the glue in the range of this surface density The quantity of the cavernous structure of viscous dielectric layer is suitable, can make adhesive media layer 2 and continuous fiber reinforced thermoplastic resin prepreg Layer and plate core 1 have effective insert depth, and it is more firm to ensure that adhesive media layer 2 is connected with the two, and once gluing Jie When the surface density of matter layer 2 is less than range above or more than range above, then peel strength can be caused to decline to a great extent.
The material of the plate core 1 is selected from polyethylene, polyethylene reclaimed materials, composite polyethylene material, polypropylene, polypropylene and returned One or more combinations in rewinding, PP composite material；The bulk density of the plate core is the g/ of 0.4 g/cm3 ~ 1.2 Cm3, such as 0.4 g/cm3,0.5 g/cm3,0.6 g/cm3,0.7 g/cm3,0.8 g/cm3,0.9 g/cm3,1 g/cm3,1.1 G/cm3,1.2 g/cm3 etc., not only make plate core 1 that there is lighter quality, moreover it is possible to the slab that is formed by the plate core 1 is effectively ensured Rigidity and chinch nail power.
The foaming agent is azo compound（Such as azodicarbonamide, azodiisobutyronitrile, Barium azodicarboxylate）、N- Nitroso compound（Such as N, the common nitro pentamethylene tetramines of N '-two）Or hydrazide kind compound etc.；Blowing promotor is selected from alkali metal Oxide（Such as zinc oxide）, organic acid or inorganic acid salt（Such as cadmium stearate）, polyalcohol, one kind in organo-silicon compound or more Kind combination.
Thermoplastic in fusing point >=plate core 1 of thermoplastic resin matrix in fusing point >=strengthening course 3 of the adhesive media layer 2 Property resin fusing point, avoid heating when damage adhesive media layer.
A kind of preparation method of high rigidity Thick Composite, its step are as follows：（1）The preparation of surface layer：By protective layer 4, Strengthening course 3,2 layers of adhesive media are from top to bottom laid in order, wherein, in strengthening course 3 by multilayer continuous fiber reinforced thermoplastic When resin prepreg material lamella forms, multilayer continuous fiber reinforced thermoplastic resin prepreg lamella is from top to bottom sequentially laid；Will Sequentially lay the protective layer 4 being integrated, strengthening course 3 and adhesive media layer 2 be put into hot press carry out hot pressing be compounded to form surface layer, Then wind standby；The plane clearance of hot press and the consistency of thickness of surface layer, hot pressing temperature are 180 DEG C ~ 260 DEG C, such as 180 DEG C, 190 DEG C, 200 DEG C, 210 DEG C, 220 DEG C, 230 DEG C, 240 DEG C, 250 DEG C, 260 DEG C, 270 DEG C, 280 DEG C etc., pressure be 2bar ~ 6bar, such as 2 bar, 3 bar, 4 bar, 5 bar, 6 bar, the speed of continuous production surface layer is 1.5m/min ~ 12m/ Min, such as 1.5 m/min, 2 m/min, 2.5 m/min, 3 m/min, 3.5 m/min, 4 m/min, 4.5 m/min, 5 m/ min、5.5 m/min、6 m/min、6.5 m/min、7 m/min、7.5 m/min、8 m/min、8.5 m/min、9 m/min、 9.5 m/min, 10 m/min, 10.5 m/min, 11 m/min, 11.5 m/min, 12 m/min etc.；（2）The preparation of plate core 1： Thermoplastic resin added with foaming agent is added into screw extruder 5, thermoplastic resin is squeezed into profiled sheeting by screw extruder 5 In the heating die cavity 6 of core 1, with the continuous work of screw extruder 5, the plate core 1 of shaping is promoted to leave heating die cavity 6, heating The gap of die cavity 6 and the consistency of thickness of plate core 1, the heating-up temperature of screw extruder 5 is 180 DEG C ~ 280 DEG C, such as 180 DEG C, 190 DEG C, 200 DEG C, 210 DEG C, 220 DEG C, 230 DEG C, 240 DEG C, 250 DEG C, 260 DEG C, 270 DEG C or 280 DEG C etc., heat the heating-up temperature of die cavity 6 For 200 DEG C ~ 300 DEG C, such as 200 DEG C, 210 DEG C, 220 DEG C, 230 DEG C, 240 DEG C, 250 DEG C, 260 DEG C, 270 DEG C, 280 DEG C, 290 DEG C or 300 DEG C etc., the heating-up temperature of heating die cavity 6 is higher than the heating-up temperature of screw extruder 5, and the speed of continuous production plate core is 0.5m/min ~ 3m/min, such as 0.5 m/min, 0.8 m/min, 1 m/min, 1.3 m/min, 1.5 m/min, 1.7 m/min, 1.9 m/min, 2 m/min, 2.2 m/min, 2.5 m/min, 2.7 m/min, 2.9 m/min, 3 m/min etc.；（3）Slab Prepare：A pair are provided with after die cavity 6 is heated in the heating roller 7 arranged up and down, the top and place of the heating roller 7 in top In the surface layer for being respectively arranged below feeding roller 8, winding being placed with feeding roller 8 of the heating roller 7 of bottom, the surface layer of winding Initiating terminal pulls out and on heating roller 7 corresponding to being entangled in, the plate core 1 sent out by heating die cavity 6 be directly entered two heating rollers 7 it Between, while two heating rollers 7 rotate the surface layer for making to be entangled in thereon and are compounded on the corresponding surface of plate core 1, slab are formed, with screw rod The continuous extrusion of extruder 5, slab, which continues to move forward to enter in cooling and shaping die cavity 9, to be cooled down, finally with screw extruder 5 Continuous extrusion will slab in cooling and shaping die cavity 9 send out cooling and shaping die cavity 9 after cut, the temperature of heating roller 7 is 150 DEG C ~ 250 DEG C, such as 150 DEG C, 160 DEG C, 170 DEG C, 180 DEG C, 190 DEG C, 200 DEG C, 210 DEG C, 220 DEG C, 230 DEG C, 240 DEG C or 250 DEG C etc., the consistency of thickness in gap and slab between two heating rollers 7, the composite pressure between two heating rollers 7 is 3bar ~ 6bar, such as 3 bar, 3.5 bar, 4 bar, 4.5 bar, 5 bar, 5.5 bar, 6 bar；（4）Until screw extruder 5 After interior thermoplastic resin extrusion completely, screw extruder 5 is out of service, completes the Continuous maching of all slabs.Wherein, screw rod Extruder 5, heating roller 7, heating die cavity 6 and cooling and shaping die cavity 9 are prior art.
In step（3）In, slab needs to be divided into three sections when cooling down in the cooling and shaping die cavity 9 to be cooled down, and first paragraph is cold But temperature is 50 DEG C ~ 80 DEG C, and such as 50 DEG C, 55 DEG C, 60 DEG C, 65 DEG C, 70 DEG C, 75 DEG C, 80 DEG C, second segment chilling temperature is 20 DEG C ~ 50 DEG C, such as 20 DEG C, 25 DEG C, 30 DEG C, 35 DEG C, 40 DEG C, 45 DEG C, 50 DEG C, three-stage cooling temperature is 10 DEG C ~ 20 DEG C, such as 10 DEG C, 15 DEG C, 20 DEG C etc., then by slab by being sent out in cooling and shaping die cavity 9.By sub-sectional cooling, sheet material internal crystallization can be made Particle refines, and effectively strengthens the intensity of sheet material.
Gap between cooling gap≤two heating roller 7 of the cooling and shaping die cavity 9, because slab is by two heating rollers Size after cooling and shaping die cavity 9 cools down out is entered between 7 and accordingly has contraction, therefore, the chilling room of cooling and shaping die cavity 9 Gap between gap≤two heating roller 7, the shape for the slab that can effectively shape.
The directionality instruction being related in the present invention（Upper surface, lower surface etc.）, it is only used for explaining composite carriage The relative position relation between each part during in such as Fig. 1 states, when being changed such as the particular state, then directionality refers to Show and also correspondingly change therewith.
The present invention is further illustrated below by embodiment, following examples are the preferable embodiment party of the present invention Formula, but embodiments of the present invention are not limited by following embodiments.
Embodiment one
The material of plate core 1 is polyethylene, and foaming agent is azodicarbonamide, and blowing promotor is zinc oxide, the bulk density of plate core For 0.4 g/cm3, the protective layer 4 in surface layer is polyethylene film, and the thickness of strengthening course 3 is 0.6mm, and the surface density of strengthening course 3 is 900g/m2, it is combined by two layers of unidirectional continuous glass fibre enhancing thermoplastic resin prepreg lamella, adjacent continuous glass The ply stacking angle of fiber-reinforced thermoplastic resin prepreg lamella is 0 °/90 °, and the continuous glass fibre strengthens thermoplastic resin Prepreg lamella is combined by unidirectional continuous glass fibre and polyethylene, strengthens thermoplastic resin based on individual layer continuous glass fibre The gross weight of fat preliminary-dip piece lamella, the percentage by weight of continuous glass fibre is 60wt%, a diameter of 10 μ of continuous glass fibre M, the percentage by weight of thermoplastic resin matrix are 40wt%, and adhesive media layer 2 is PET hot rolling spun-bonded non-woven fabrics, surface density 31 g/m2；Slab is prepared by the preparation method of above-mentioned high rigidity Thick Composite, wherein, hot pressing temperature when prepared by surface layer is 200 DEG C, hot pressing pressure 2bar, process velocity 8m/min；When prepared by plate core, the temperature of screw extruder 5 is 200 DEG C, is added The heating-up temperature of hot-die chamber 6 is 250 DEG C, and the process velocity of continuous production plate core is 2m/min；Heating when prepared by slab The temperature of roller 7 is 200 DEG C, and the composite pressure between two heating rollers 7 is 3bar；The slab is in cooling and shaping die cavity 9 One-step cooling temperature is 60 DEG C, and second segment chilling temperature is 40 DEG C, and three-stage cooling temperature is 20 DEG C.
According to GB/T17657-2013 test slab do not absorb water before bending strength and chinch nail power, the peel strength of surface layer with And water absorption rate is：Bending strength is 27MPa, and the peel strength of surface layer is 125N/mm, and chinch nail power is 3800N, water absorption rate 1%； After impregnating 24h, bending strength declines 0.8%, and the peel strength of surface layer declines 7%, and chinch nail power declines 0.5%.
Comparative example one
Rotary-cut wood skin, the wood skin after rotary-cut is dried into 4h ~ 8h at 60 DEG C ~ 110 DEG C, the gluing in wood skin, will be more after gluing is complete Layer wood skin laying is integrated, and is mutually perpendicular to the wood fibre direction of adjacent wood skin, is formed plate core, is then pressed in 8MPa ~ 20MPa 30min ~ 2h is cold-pressed to plate core under power, carrying out hot pressing to plate core under temperature 70 C ~ 140 DEG C, hot pressing pressure 8MPa ~ 20MPa consolidates Change, hot pressing time is 8min ~ 15min, and plate core is made；By two layers continuous glass fibre strengthen thermoplastic resin preliminary-dip piece by 0 °/ 90 ° of layings, and it is compound to carry out hot pressing, the continuous glass fibre enhancing thermoplastic resin prepreg lamella is by unidirectional continuous glass Fiber and polyethylene are combined, and hot pressing temperature is 200 DEG C, hot pressing pressure 2bar, and surface layer, two layers of continuous glass fibre is made The thickness for strengthening thermoplastic resin preliminary-dip piece is 0.6mm, and strengthening thermoplastic resin preliminary-dip piece by two layers of continuous glass fibre is made The surface density of surface layer be 900g/m2, based on the gross weight of individual layer continuous glass fibre enhancing thermoplastic resin preliminary-dip piece lamella, The percentage by weight of continuous glass fibre is 60wt%, and the percentage by weight of thermoplastic resin matrix is 40wt%；The one of surface layer It is used as adhesive media layer by the compound one layer of PET hot rolling spun-bonded non-woven fabrics of hot press on face, the face of PET hot rolling spun-bonded non-woven fabrics is close Spend for 31 g/m2, the upper and lower surface that surface layer is had to the one side and plate core of PET hot rolling spun-bonded non-woven fabrics is answered by hot press hot pressing It is integrated, forms template.
According to GB/T17657-2013 test slab do not absorb water before bending strength and chinch nail power, the peel strength of surface layer with And water absorption rate is：Bending strength is 20MPa, and the peel strength of surface layer is 80N/mm, and chinch nail power is 3000N, water absorption rate 31%； After impregnating 24h, bending strength declines 52%, and the peel strength of surface layer declines 23%, and chinch nail power declines 18%.
It can be seen that the slab in embodiment one is on the premise of the advantage that light, intensity is high, shock resistance is good is maintained, Water absorption rate is low, is maintained to higher rigidity after absorbing water, and chinch nail power, peel strength and bending strength are better than comparative example A kind of template, is particularly suited for carrier.
Embodiment two
The surface density of PET hot rolling spun-bonded non-woven fabrics is arranged to 40 g/m2, remaining content is identical with embodiment one, according to GB/ T17657-2013 tests the bending strength and chinch nail power before slab does not absorb water, the peel strength of surface layer and water absorption rate is：Bending Intensity is 30MPa, and the peel strength of surface layer is 160N/mm, and chinch nail power is 3800N, water absorption rate 1.1%；After impregnating 24h, bending Intensity declines 0.7%, and the peel strength of surface layer declines 6%, and chinch nail power declines 0.5%.
Embodiment three
The surface density of PET hot rolling spun-bonded non-woven fabrics is arranged to 40 g/m2, the bulk density of plate core is 1 g/cm3, remaining content It is identical with embodiment one, the bending strength before slab does not absorb water and chinch nail power, the stripping of surface layer are tested according to GB/T17657-2013 It is from intensity and water absorption rate：Bending strength is 35MPa, and the peel strength of surface layer is 170N/mm, and chinch nail power is 4000N, water suction Rate is 0.7%；After impregnating 24h, bending strength declines 0.5%, and the peel strength of surface layer declines 4%, and chinch nail power declines 0.3%.
Example IV
The surface density of PET hot rolling spun-bonded non-woven fabrics is arranged to 40 g/m2, the bulk density of plate core is 1.2 g/cm3, in remaining Hold bending strength and chinch nail power, surface layer identical with embodiment one, before not absorbed water according to GB/T17657-2013 test slabs Peel strength and water absorption rate are：Bending strength is 37MPa, and the peel strength of surface layer is 180N/mm, and chinch nail power is 4200N, is inhaled Water rate is 0.6%；After impregnating 24h, bending strength declines 0.5%, and the peel strength of surface layer declines 3%, and chinch nail power declines 0.3%.

Claims (13)

1. a kind of high rigidity Thick Composite, including plate core (1), the upper and lower surface of plate core (1) are connected to surface layer, it is special Sign is：The material of the plate core (1) is the thermoplastic resin of foamed dose of foaming, and the surface layer includes adhesive media layer (2), strengthening course（3）And protective layer（4）, strengthening course (3) is connected on a surface of adhesive media layer (2), in strengthening course (3) Surface on connect protective layer (4), the another side of adhesive media layer (2) and the corresponding surface of plate core (1) are complex as a whole, it is described Strengthening course (3) is laid by single or multiple lift continuous fiber reinforced thermoplastic resin prepreg lamella and formed, the adhesive media layer (2) material is porous air pervious material, and the adhesive media layer (2) is partially submerged into strengthening course (3) in face of the one side of strengthening course (3) In continuous fiber reinforced thermoplastic resin prepreg lamella in, the adhesive media layer (2) faces plate core（1）One side part In embedded plate core (1).
A kind of 2. high rigidity Thick Composite according to claim 1, it is characterised in that：The protective layer (4) is thin Film, composite membrane or compound base fabric, the one or more of the material of protective layer (4) in EVA, PE, PP, PET, PA, aluminium foil Combination.
A kind of 3. high rigidity Thick Composite according to claim 1, it is characterised in that：The thickness of the strengthening course (3) Spend for 0.3mm ~ 1mm, surface density 150g/m2~1500 g/m2。
A kind of 4. high rigidity Thick Composite according to claim 3, it is characterised in that：The strengthening course (3) is by two Layer is combined to four layers of continuous fiber reinforced thermoplastic resin prepreg lamella, and the continuous fiber reinforced thermoplastic resin is pre- Leaching tablet layer is combined by unidirectional continuous fiber and thermoplastic resin matrix, and strengthening course (3) is by multilayer continuous lod warm When plastic resin prepreg lamella is combined, the ply stacking angle of adjacent continuous fiber reinforced thermoplastic resin prepreg lamella It is different；Based on the gross weight of individual layer continuous fiber reinforced thermoplastic resin preliminary-dip piece lamella, the percentage by weight of continuous fiber is 40wt% ~ 80wt%, preferably 55wt% ~ 65wt%, the percentage by weight of thermoplastic resin matrix is 20wt% ~ 60wt%, preferably 35wt% ~45wt%；The material of the continuous fiber is in glass fibre, carbon fiber, aramid fiber, basalt fibre, silicon carbide fibre One or more combinations, a diameter of 5 μm ~ 20 μm of continuous fiber；The thermoplastic resin matrix is selected from polyethylene, poly- third One or more combinations in alkene, polyamide, polyethylene reclaimed materials, polypropylene reclaimed material, polyamide reclaimed materials.
A kind of 5. high rigidity Thick Composite according to claim 1, it is characterised in that：The adhesive media layer (2) For non-woven fabrics or tissue paper, the one or more combinations of the material of the non-woven fabrics in PET, PA, viscose fiber, non-woven fabrics Type is needle punched non-woven fabrics, spunlace non-woven cloth or hot rolling spun-bonded non-woven fabrics；The surface density of the adhesive media layer (2) is 30 g/ m2The g/m of ＜ α≤502。
A kind of 6. high rigidity Thick Composite according to claim 5, it is characterised in that：The adhesive media layer (2) Surface density be the g/m of α=402。
A kind of 7. high rigidity Thick Composite according to claim 1, it is characterised in that：The thermoplastic resin is selected from One kind in polyethylene, polyethylene reclaimed materials, composite polyethylene material, polypropylene, polypropylene reclaimed material, PP composite material Or multiple combinations；The bulk density of the plate core (1) is 0.4 g/cm3~1.2 g/cm3。
A kind of 8. high rigidity Thick Composite according to claim 1, it is characterised in that：The foaming agent is azo Compound（Such as azodicarbonamide, azodiisobutyronitrile, Barium azodicarboxylate）, N- nitroso compounds（As N, N '-two are common Nitro pentamethylene tetramine）Or hydrazide kind compound etc.；Blowing promotor is selected from alkali metal oxide（Such as zinc oxide）, organic acid or Inorganic acid salt（Such as cadmium stearate）, polyalcohol, one or more combinations in organo-silicon compound.
A kind of 9. high rigidity Thick Composite according to claim 1, it is characterised in that：The adhesive media layer (2) Fusing point >=strengthening course (3) in thermoplastic resin matrix fusing point >=plate core (1) in thermoplastic resin fusing point.
10. a kind of preparation method of high rigidity Thick Composite, it is characterised in that step is as follows：
1）The preparation of surface layer：Protective layer (4), strengthening course (3), adhesive media (2) layer are from top to bottom laid in order, wherein, When strengthening course (3) is made up of multilayer continuous fiber reinforced thermoplastic resin prepreg lamella, multilayer continuous lod thermoplastic Property resin prepreg material lamella is from top to bottom sequentially laid；The protective layer (4) being integrated, strengthening course (3) and gluing will sequentially be laid Dielectric layer (2) is put into progress hot pressing in hot press and is compounded to form surface layer, then winds standby；The plane clearance and surface layer of hot press Consistency of thickness, the speed of continuous production surface layer is 1.5m/min ~ 12m/min；
2）The preparation of plate core (1)：Thermoplastic resin added with foaming agent is added into screw extruder (5), screw extruder (5) thermoplastic resin is squeezed into the heating die cavity (6) of shaping plate core (1), with the continuous work of screw extruder (5), pushed away The plate core (1) of dynamic shaping leaves heating die cavity (6), gap and plate core (1) consistency of thickness of heating die cavity (6), heating die cavity (6) Heating-up temperature be higher than the heating-up temperatures of screw extruder (5), the speed of continuous production plate core is 0.5m/min ~ 3m/ min；
3）The preparation of slab：A pair are provided with after heating die cavity (6) in the heating roller (7) arranged up and down, adding in top The top of hot-rolling (7) and heating roller (7) in bottom have been respectively arranged below feeding roller (8), and feeding roller is placed on (8) There is the surface layer of winding, the initiating terminal of the surface layer of winding is pulled out and is entangled on corresponding heating roller (7), is sent out by heating die cavity (6) Plate core (1) be directly entered between two heating rollers (7), while to rotate the surface layer for making to be entangled in thereon compound for two heating rollers (7) On the corresponding surface of plate core (1), slab is formed, with the continuous extrusion of screw extruder (5), slab continues reach and enters cooling Is cooled down in sizing die cavity (9), finally as the continuous extrusion of screw extruder (5) is by the thickness in cooling and shaping die cavity (9) Plate is cut after sending out cooling and shaping die cavity (9), the consistency of thickness in gap and slab between two heating rollers (7)；
4）Until after the thermoplastic resin in screw extruder (5) is extruded completely, screw extruder (5) is out of service, completes institute There is the Continuous maching of slab.
A kind of 11. preparation method of high rigidity Thick Composite according to claim 10, it is characterised in that：In step 1）Middle hot pressing temperature is 180 DEG C ~ 260 DEG C, and pressure is 2bar ~ 6bar；In step 2）The heating-up temperature of middle screw extruder (5) is 180 DEG C ~ 280 DEG C, the heating-up temperature of heating die cavity (6) is 200 DEG C ~ 300 DEG C；In step 3）The temperature of middle heating roller (7) is 150 DEG C ~ 250 DEG C, the composite pressure between two heating rollers (7) is 3bar ~ 6bar.
A kind of 12. preparation method of high rigidity Thick Composite according to claim 10 or 11, it is characterised in that： Step 3）In, slab needs to be divided into three sections when cooling down in the cooling and shaping die cavity (9) to be cooled down, and first paragraph chilling temperature is 50 DEG C ~ 80 DEG C, second segment chilling temperature is 20 DEG C ~ 50 DEG C, and three-stage cooling temperature is 10 DEG C ~ 20 DEG C, then by slab by cooling down Die cavity (9) of shaping is middle to be sent out.
A kind of 13. preparation method of high rigidity Thick Composite according to claim 10, it is characterised in that：It is described cold But the gap between cooling gap≤two heating roller (7) of sizing die cavity (9).
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CN112721379A (en) * 2020-12-31 2021-04-30 广州金发碳纤维新材料发展有限公司 Multifunctional thermoplastic composite board
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