CN108943923A - One kind making fire-retardant rail traffic vehicles interior trim floor based on foam process - Google Patents

One kind making fire-retardant rail traffic vehicles interior trim floor based on foam process Download PDF

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Publication number
CN108943923A
CN108943923A CN201810532733.8A CN201810532733A CN108943923A CN 108943923 A CN108943923 A CN 108943923A CN 201810532733 A CN201810532733 A CN 201810532733A CN 108943923 A CN108943923 A CN 108943923A
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CN
China
Prior art keywords
core material
interior trim
rail traffic
layer
foam process
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Pending
Application number
CN201810532733.8A
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Chinese (zh)
Inventor
孙亚峰
王春敏
王永荣
胡延东
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Jiaxing Leading Material Technology Co Ltd
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Jiaxing Leading Material Technology Co Ltd
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Priority to CN201810532733.8A priority Critical patent/CN108943923A/en
Publication of CN108943923A publication Critical patent/CN108943923A/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
    • 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
    • B32B5/20—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 foamed in situ
    • 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
    • B32B27/18—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
    • 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
    • B32B37/06—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
    • 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
    • B32B5/024—Woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D17/00—Construction details of vehicle bodies
    • B61D17/04—Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures
    • B61D17/10—Floors
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B2038/0052—Other operations not otherwise provided for
    • B32B2038/0084—Foaming
    • 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
    • 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
    • B32B2262/0253—Polyolefin 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
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102—Insulating
    • 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
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
    • 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
    • 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
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/10—Trains

Abstract

The present invention relates to one kind to make fire-retardant rail traffic vehicles interior trim floor based on foam process, including the upper epidermis, core material and layer successively laid；Upper epidermis, core material and layer are combined floor by heating pressurization；The core material is foaming sheet material；The upper epidermis and layer are to be combined that Lightweight foam sheet is made as core material in fluoropolymer resin foaming using physically or chemically foam process with fabric made of the fibrage of thermoplastic resin co-extrusion by the unidirectional continuous glass fibre enhancing thermoplastic resin preliminary-dip piece of multilayer and/or glass fabric enhancing thermoplastic resin preliminary-dip piece and/or glass, this light composite material core material is not only light-weight, can absorb noise；Surface layer and sandwich layer use similar polymers, thus base material can be bonded together by directly practical heat pressing process, can reduce glue spraying process directly by heat pressing process in conjunction with surface layer without using adhesive.This flooring material is all recyclable, environmentally protective, is easily handled.

Description

One kind making fire-retardant rail traffic vehicles interior trim floor based on foam process
Technical field
The present invention relates to sheet material technical fields, more particularly to a kind of foam process that is based on to make fire-retardant rail vehicle Interior trim floor.
Background technique
With the rapid development of rail traffic, people increasingly pay close attention to rail vehicle lightweight and riding comfort, The concern of the lightweight of rail traffic material and recoverable more and more by main engine plants and terminal client.Floor is in vehicle Accounting weight is very big in decorations, and typical floor panel structure is from top to bottom by floor cloth, sandwich battenboard, sound insulating pad three parts group At.Present invention is generally directed to described sandwich battenboard, material from wood glue plate to aluminum honeycomb again to hard foam and Composite material, light-weighted distance are constantly extending, but existing market mostly still for aluminum honeycomb and its extend The sandwich material come, although this floor unit area grammes per square metre is lower, production mounting process is complicated, unit price compared with Height, batch production efficiency is lower, and the thermal coefficient of aluminum honeycomb material is high；In addition, because of honeycomb itself and itself and surface material Bonding need using adhesive, smell is bigger；Unfavorable factor in summary can eventually affect the comfortable of vehicle ride Property.
In the flooring material of private minibus and motor bus, have at present using thermosetting property or thermoplastic composite. Have and gradually taken by other materials since its production and recycling can all pollute the environment for same with thermosetting compound material The trend in generation.And for thermoplastic composite, due to its environmental protection, it is easy to secondary operation molding, increasingly by market Favor.Lightweight fiberglass reinforced thermoplastic composite (LWRT) is made by other thermoplastic fiber types such as glass fibre and polypropylene It with Nonwoven Equipment, is process by opening the processes such as packet, combing, lapping, needle thorn, hot pressing, there is lightweight, sound-absorbing, can return Receive the advantages that utilizing.106218150 A of patent CN is using LWRT as sandwich layer, and upper and lower surface is coated with thermoplastic composite surface layer As the floor of sandwich structure, apply on car.Patent CN 201520224051.2 discloses a kind of visitor of sandwich structure Vehicle floor, the bus deck are using the sandwich that core material is arranged between layer glass fiber reinforced resin based composites layer Structure makes bus deck have enough mechanical properties, and ensure that the compressive property and lightweight of bus deck.But its core material Using polyurethane foam, need to carry out by adhesive with surface layer be bonded, which can generate insalubrious volatilization Property substance, be unfavorable for workers ' health and environmental protection, and the recycling of polyurethane foam needs the processing of special equipment and solvent, It is difficult to accomplish 100% recycling.In addition, there are many rail traffic vehicles and car difference, for example rail hands over vehicle to focus more on material Flame retardant property, the general car of the volume ratio of vehicle is bigger, and load-carrying is higher, higher to material loss of weight demand.Therefore for track Vehicular traffic, this requires providing a kind of highly effective flame-retardant, with better pressure resistance energy, lightweight, the environmentally protective, ground that easily recycles Plate.
In view of the above problems, therefore, it is necessary to it makes improvements.
Summary of the invention
The present invention provides a kind of highly effective flame-retardant exactly in order to solve the above-mentioned problems of the prior art, has preferable Compressive property, lightweight, it is environmentally protective, easily recycle based on foam process make fire-retardant rail traffic vehicles interior trim floor.
In order to reach the goals above, the technical scheme adopted by the invention is that: one kind making fire-retardant rail based on foam process Road vehicular traffic interior trim floor, including the upper epidermis, core material and layer successively laid；Upper epidermis, core material and layer pass through Heating pressurization is combined floor；The core material is foaming sheet material；The upper epidermis and layer are unidirectionally continuous by multilayer Glass fiber reinforcement thermoplastic resin preliminary-dip piece and/or glass fabric enhancing thermoplastic resin preliminary-dip piece and/or glass with Fabric made of thermoplastic resin co-extrusion fibrage is combined.
As a preferred solution of the present invention, the core material is to pass through physics or chemistry with thermoplastic polymer resin The foaming sheet material of foam process production.
As a preferred solution of the present invention, the core material is formed several for improving it than strong by foam process The performances such as degree, specific stiffness and the small bubble or stomata for reducing its density, bubble or stomata are covered in foaming sheet material.
As a preferred solution of the present invention, the thermoplastic polymer resin includes polypropylene PE, polypropylene PP, gathers Amide PA, poly- para Toluic Acid's glycol ester PET, polycarbonate, polyphenylene thioether PPS, polyether-ether-ketone PEEK, polyetherimide PEI, polyether sulfone PSU, polyphenylsulfone PPSU or polyvinylchloride.
As a preferred solution of the present invention, the density of the core material is 30kg/m3~1000g/m3, with a thickness of 4~ 30mm。
As a preferred solution of the present invention, the unidirectional continuous glass fibre enhancing thermoplastic resin preliminary-dip piece is pressed [90 °/0 °], [0 °/90 °], [0 °/45 °/90 °/135 °] or [135 °/90 °/45 °/0 °] ply sequence hot pressing is combined.
As a preferred solution of the present invention, glass fabric enhancing thermoplastic resin preliminary-dip piece by plain weave and Twill pattern is compound, forms fiber staggered latticed.
As a preferred solution of the present invention, the interior trim floor with a thickness of 4~30mm, density is 50~ 1000kg/m3。
As a preferred solution of the present invention, the upper epidermis, layer are acrylic resin slice, polypropylene tree Rouge slice formulation include: by mass percentage acrylic resin PP70%~80%, organic phosphorus-nitrogen containing flame retardant 20%~ 30%, PTFE0.2%, antioxidant 0.2%, UV stabilizer 0.1%, calcium stearate 0.1%；The core material is that polypropylene is fine Dimension, the formula of polypropylene fibre includes: polypropylene 80%~90%, organic phosphoric acid ammonium flame retardant by mass percentage 10%~20%, polyol compound 2~5%, organic siliconresin 1~5%, antioxidant 0.5~2%.
The beneficial effects of the present invention are: rail traffic vehicles floor of the invention, upper epidermis and layer are unidirectional by multilayer Continuous glass fibre enhances thermoplastic resin preliminary-dip piece and/or glass fabric enhancing thermoplastic resin preliminary-dip piece and/or glass Fabric made of fine and thermoplastic resin co-extrusion fibrage, laying, forms fiber staggered latticed, ensure that production layer by layer Product are all very high in vertical and horizontal performance, and intensity, impact resistance and durability are more preferable；It will using physically or chemically foam process Lightweight foam sheet is made as core material in fluoropolymer resin foaming, and this light composite material core material is not only light-weight, can absorb Noise；Surface layer and sandwich layer use similar polymers, thus base material can be bonded together by directly practical heat pressing process, nothing It need to use adhesive that can reduce glue spraying process directly by heat pressing process in conjunction with surface layer.This flooring material can all return It receives, it is environmentally protective, it is easily handled.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention；
Appended drawing reference in figure: core material 1, upper epidermis 2, layer 3.
Specific embodiment
It elaborates with reference to the accompanying drawing to the embodiment of the present invention.
Embodiment 1:
As shown in Figure 1, a kind of make fire-retardant rail traffic vehicles interior trim floor based on foam process, including what is successively laid Upper epidermis 2, core material 1 and layer 3；Upper epidermis 2, core material 1 and layer 3 are combined floor by heating pressurization；The core Material 1 is foaming sheet material；The upper epidermis 2 and layer 3 are pre- by the unidirectional continuous glass fibre enhancing thermoplastic resin of multilayer Soak piece and/or glass fabric enhancing thermoplastic resin preliminary-dip piece and/or glass and the fibrage of thermoplastic resin co-extrusion and At fabric be combined；Core material 1 is the foaming made with thermoplastic polymer resin by physics or chemical foaming technology Sheet material；Rail traffic vehicles floor of the invention, upper epidermis and layer enhance thermoplastic by the unidirectional continuous glass fibre of multilayer Property resin prepreg piece and/or glass fabric enhancing thermoplastic resin preliminary-dip piece and/or glass and thermoplastic resin co-extrusion it is fine Dimension braiding made of fabric, laying, forms fiber staggered latticed layer by layer, ensure that product vertical and horizontal performance all It is very high, and intensity, impact resistance and durability are more preferable；Fluoropolymer resin foaming is made gently using physically or chemically foam process For matter foaming plate as core material, this light composite material core material is not only light-weight, can absorb noise；Surface layer and sandwich layer use same Kind polymer, thus base material can be bonded together by directly practical heat pressing process, it can be direct without using adhesive Through heat pressing process in conjunction with surface layer, reduce glue spraying process.This flooring material is all recyclable, environmentally protective, is easily handled.
Core material 1 is formed several for improving the performances such as its specific strength, specific stiffness and reducing its density by foam process Small bubble or stomata, bubble or stomata are covered in foaming sheet material.
In order to improve the intensity, impact resistance and durability of bus deck, upper epidermis 2 of the present invention, layer 3 are by multilayer Unidirectional continuous glass fibre enhancing thermoplastic resin preliminary-dip piece and/or glass fabric enhancing thermoplastic resin preliminary-dip piece and/ Or fabric made of glass and the fibrage of thermoplastic resin co-extrusion, to the enhancing thermoplastic resin preimpregnation of unidirectional continuous glass fibre Piece using specific ply sequence laying layer by layer, unidirectional continuous glass fibre enhancing thermoplastic resin preliminary-dip piece by [90 °/0 °], [0 °/90 °], [0 °/45 °/90 °/135 °] or [135 °/90 °/45 °/0 °] ply sequence hot pressing is combined；Such as one layer 0 degree, One layer 90 degree；Or one layer 0 degree, one layer 45 degree, one layer 90 degree, one layer 135 degree etc.；Thermoplastic resin is enhanced to glass fabric The institutional framework of rouge preliminary-dip piece, design textile is plain weave and twill pattern, forms fiber staggered latticed, ensure that product It is all very high in vertical and horizontal performance, and intensity, impact resistance and durability are more preferable.
Core material 1 is the light weight board made with thermoplastic polymer resin by physics or chemical foaming technology, can Short glass fiber is added in polymeric system to improve the rigidity of final plate, thermoplastic polymer resin includes polypropylene PE, polypropylene PP, polyamide PA, poly- para Toluic Acid's glycol ester PET, polycarbonate, polyphenylene thioether PPS, polyether-ether-ketone PEEK, polyetherimide PEI, polyether sulfone PSU, polyphenylsulfone PPSU or polyvinylchloride；The density of core material 1 is 30kg/m3 ~1000kg/m3, with a thickness of 4~30mm.
Foam process described here is described in detail below:
Supercritical gas or the foaming of chemical foaming agent sheet extrusion: polymeric aggregate and supercritical gas (carbon dioxide gas Body or nitrogen) it is separately added into the different location of First extruder, it is melted in an extruder under high pressure and forms uniform solution, and Keep certain pressure；Then above-mentioned melt is delivered directly to second foundation machine and is cooled down, pressure release, foaming at die orifice, Plate is made.Usually, it needs that higher melt strength polymer is selected to can be only achieved relatively good foaming effect.Here may be used To change supercritical gas into chemical foaming agent.
Supercritical gas technology kettle foam: technology is rolled by polymer plate first and produces polymer plate, is put into In closed pressure vessel, high-pressure carbon dioxide gas or nitrogen are injected, pressure maintaining several hours are heated in certain temperature range, are made It obtains carbon dioxide gas and nitrogen sufficiently diffuses into polymer sheet, then cooling down to room temperature, quickly releases titanium dioxide Carbon gas or nitrogen.In subsequent heat pressing process, such as in the attaching process of core material and plane materiel, by adjusting thermal composite machine Combined temp, the time of contact of compound linear velocity and film and composite roller, so that the carbon dioxide gas in polymer sheet Body or nitrogen gas foaming form microporous foam structure, producing foamed plate.
Polymer beads foaming: in autoclave, within a certain period of time, by high pressure by physical blowing agent in predetermined temperature Under be impregnated among the tiny pellet of matrix resin, then cooling system temperature to room temperature to get arrive expandable bead.It uses When, first under certain blowing temperature, makes expandable bead prefoam once using vapor or hot-air, obtain mung bean size The expandable bead of prefoam.When preparing product, the expandable bead of prefoam is put into mold and heats, depressurize, is made pre- The expandability plastic beads of foaming are further expanded and are blended, and form foaming sheet material.
Flame-retardant system: above-mentioned core material 1, upper epidermis 2, thermoplastic resin and fiber described in layer 3 have flame retarding function, Some naturally has good flame retardant property in including but not limited to above-mentioned thermoplastic polymer, and some need carries out fire-retardant change Property.Since rail traffic vehicles interior trim needs to meet fire prevention under different application, low smoke density, low smoke toxicity and burns low The requirement such as Heat liberation unit, uses halogen-free flameproof formula herein.Here typical flame-retardant formulations, flooring board are provided by taking polypropylene as an example The acrylic resin slice formulation of material includes: acrylic resin PP70%~80%, the resistance of organic phosphorus nitrogen system by mass percentage Fire agent 20%~30%, PTFE 0.2%, antioxidant 0.2%, UV stabilizer 0.1%, calcium stearate 0.1%；Flooring material The formula of polypropylene fibre by mass percentage include: polypropylene 80%~90%, organic phosphoric acid ammonium flame retardant 10% ~20%, polyol compound 2~5%, organic siliconresin 1~5%, antioxidant 0.5~2%；Rail traffic vehicles floor With a thickness of 4-30mm, the weight ratio of glass fibre and polymer fiber is 20%~70%, and density is 50~1000kg/m3.Its Typical sample structure is as shown in table 1；
A kind of rail traffic vehicles floor, including the upper epidermis 2, core material 1 and layer 3 successively laid；Upper epidermis 2 is under Surface layer 3 is combined as glass and fabric hot pressing made of thermoplastic resin co-extrusion fibrage, the glass and thermoplasticity The content of glass fibre is 60wt% in fabric made of resin co-extrusion fibrage, and fabric construction is 2 lower twill, thickness on 1 For 1mm, density 1550kg/m3.Here the flame-retardant formulations of acrylic resin (being free of glass) are as follows: acrylic resin PP70% ~80%, organic phosphorus-nitrogen containing flame retardant 20%~30%, PTFE 0.2%, antioxidant 0.2%, UV stabilizer 0.1%, hard ester Sour calcium 0.1%；The core material is to use expansion type polypropylene granules for substrate, and pellet here has premixed above-mentioned fire-retardant match Side, this pellet is placed in autoclave, in certain time, by high pressure by supercritical CO2It is impregnated into 80 degrees centigrades Enter among the tiny pellet of matrix resin, then cooling system temperature to room temperature, obtains expandable bead.In use, first one Under fixed blowing temperature, make expandable bead prefoam once using vapor (or hot-air), and keeps surface of beads fusing viscous Knot obtains the effigurate semi-finished product of tool of expandability.In flooring material plane materiel and core material attaching process, by adjusting heat The combined temp of compounding machine, the time of contact of compound linear velocity and film and composite roller, heating, decompression make prefoam Bead in semi-finished product is further expanded and is blended, and so that sandwich layer is formed expanded polypropylene sheet material, and further paste in plane materiel Synthesis type, core thickness 18mm control abscess-size in 50um.The embodiment bus deck performance is shown in Table 1.
Embodiment 2:
A kind of rail traffic vehicles floor, including the upper epidermis 2, core material 1 and layer 3 successively laid；Upper epidermis 2 is under Surface layer 3 is the ply sequence hot pressing by 4 layers of unidirectional continuous fiber reinforced polypropylene resin prepreg piece by [0 °/45 °/135 °/90 °] It being combined, the content of glass fibre is 70wt% in the unidirectional continuous fiber reinforced polypropylene resin prepreg piece, with a thickness of 0.25mm, density 1650kg/m3.Here acrylic resin flame-retardant formulations are the same as example 1；The core material is poly- using expansion type Propylene material is substrate, is blended and adds fire-retardant above-mentioned flame-retardant formulations, using supercritical CO2The production foaming of sheet extrusion technique it is poly- Propylene plate controls abscess-size in 80um with a thickness of 18mm.The composite cover of the core material and upper and lower surfaces passes through hot pressing Moulding process forms floor, and the overall thickness on floor is 20mm, which is shown in Table 1.
Embodiment 3:
A kind of rail traffic vehicles floor, including the upper epidermis 2, core material 1 and layer 3 successively laid；Upper epidermis 2 is under Surface layer 3 is combined by glass fabric enhancing thermoplastic resin preliminary-dip piece hot pressing, the glass fabric enhancing heat The content of glass fibre is 60wt% in plastic resin preliminary-dip piece, with a thickness of 1mm, density 1500kg/m3.Its polypropylene fire retardant Formula is the same as example 1；The core material is to use polypropylene flame redardant in example 1, and mix with chemical blowing master batch, is rolled by steel rod Technique produces foaming polypropylene sheet.And surface material and foaming polypropylene sheet are laminated to one by offline heat pressing process It rises.The embodiment bus deck performance is shown in Table 1.
Embodiment 4:
A kind of rail traffic vehicles floor, including the upper epidermis 2, core material 1 and layer 3 successively laid；Upper epidermis 2 is under Surface layer 3 is identical with example 3.The core material 1 is to place it in height using polypropylene board as raw material using kettle foam technique It presses in kettle, in certain time, by high pressure by supercritical CO2It is impregnated into crystalline p p sheet in 80 degrees centigrades, then Cooling system temperature is to room temperature.In flooring material plane materiel and core material attaching process, by adjusting the combined temp of thermal composite machine, The time of contact of compound linear velocity and film and composite roller, heating, decompression make sandwich layer form expanded polypropylene sheet material, And in the further assembly of plane materiel, core thickness 18mm controls abscess-size in 50um.The formula of flame retardant polypropylene fibers With example 1.The embodiment bus deck performance is shown in Table 1.
The results of property data of 1 embodiment and comparative example of table
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention；Therefore, of the invention It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one The widest scope of cause.
Although appended drawing reference in figure is used more herein: core material 1, upper epidermis 2, the equal terms of layer 3 are not arranged A possibility that except other terms are used.The use of these items is only for be more convenient to describe and explain essence of the invention； Being construed as any additional limitation is disagreed with spirit of that invention.

Claims (9)

1. one kind makes fire-retardant rail traffic vehicles interior trim floor based on foam process, it is characterised in that: including what is successively laid Upper epidermis (2), core material (1) and layer (3)；Upper epidermis (2), core material (1) and layer (3) are combined by heating pressurization Floor；The core material (1) is foaming sheet material；The upper epidermis (2) and layer (3) are by the unidirectional continuous glass fibre of multilayer Enhance thermoplastic resin preliminary-dip piece and/or glass fabric enhancing thermoplastic resin preliminary-dip piece and/or glass and thermoplastic resin Fabric made of rouge co-extrusion fibrage is combined.
2. according to claim 1 a kind of based on foam process production fire-retardant rail traffic vehicles interior trim floor, feature Be: the core material (1) is the foaming sheet material made with thermoplastic polymer resin by physics or chemical foaming technology.
3. according to claim 2 a kind of based on foam process production fire-retardant rail traffic vehicles interior trim floor, feature Be: the core material (1) is formed several for improving its specific strength, specific stiffness and reducing the micro- of its density by foam process Small bubble or stomata, bubble or stomata are covered in foaming sheet material.
4. according to claim 2 a kind of based on foam process production fire-retardant rail traffic vehicles interior trim floor, feature Be: the thermoplastic polymer resin includes polypropylene PE, polypropylene PP, polyamide PA, poly- para Toluic Acid's glycol ester PET, polycarbonate, polyphenylene thioether PPS, polyether-ether-ketone PEEK, polyetherimide PEI, polyether sulfone PSU, polyphenylsulfone PPSU or polyvinylchloride.
5. according to claim 3 a kind of based on foam process production fire-retardant rail traffic vehicles interior trim floor, feature Be: the density of the core material (1) is 30kg/m3~1000kg/m3, with a thickness of 4~30mm.
6. according to claim 1 a kind of based on foam process production fire-retardant rail traffic vehicles interior trim floor, feature Be: the unidirectional continuous glass fibre enhancing thermoplastic resin preliminary-dip piece by [90 °/0 °], [0 °/90 °], [0 °/45 °/90 °/ 135 °] or [135 °/90 °/45 °/0 °] ply sequence hot pressing be combined.
7. according to claim 1 a kind of based on foam process production fire-retardant rail traffic vehicles interior trim floor, feature Be: the glass fabric enhancing thermoplastic resin preliminary-dip piece is compound by plain weave and twill pattern, and fiber formation is made to interlock It is latticed.
8. according to claim 1 a kind of based on foam process production fire-retardant rail traffic vehicles interior trim floor, feature Be: the interior trim floor with a thickness of 4~30mm, density is 50~1000kg/m3。
9. according to claim 1 a kind of based on foam process production fire-retardant rail traffic vehicles interior trim floor, feature Be: the upper epidermis (2), layer (3) are acrylic resin slice, and acrylic resin slice formulation is by mass percentage Meter includes: acrylic resin PP70%~80%, organic phosphorus-nitrogen containing flame retardant 20%~30%, PTFE 0.2%, antioxidant 0.2%, UV stabilizer 0.1%, calcium stearate 0.1%；The core material (1) is polypropylene fibre, and polypropylene fibre is matched Side includes: polypropylene 80%~90%, organic phosphoric acid ammonium flame retardant 10%~20%, polyol by mass percentage Object 2~5%, organic siliconresin 1~5%, antioxidant 0.5~2%.
CN201810532733.8A 2018-05-29 2018-05-29 One kind making fire-retardant rail traffic vehicles interior trim floor based on foam process Pending CN108943923A (en)

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Application publication date: 20181207