CN205917533U - High fiber content fiber reinforcement polyurethane synthetic sleeper that hard bubbles - Google Patents
High fiber content fiber reinforcement polyurethane synthetic sleeper that hard bubbles Download PDFInfo
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- CN205917533U CN205917533U CN201620898149.0U CN201620898149U CN205917533U CN 205917533 U CN205917533 U CN 205917533U CN 201620898149 U CN201620898149 U CN 201620898149U CN 205917533 U CN205917533 U CN 205917533U
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- 230000002787 reinforcement Effects 0.000 title claims abstract description 29
- 229920005830 Polyurethane Foam Polymers 0.000 claims abstract description 62
- 239000011496 polyurethane foam Substances 0.000 claims abstract description 62
- 239000000463 material Substances 0.000 claims abstract description 45
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- 229920005749 polyurethane resin Polymers 0.000 claims abstract description 36
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- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 3
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 3
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- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 3
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- 229920000570 polyether Polymers 0.000 abstract description 21
- 239000012783 reinforcing fiber Substances 0.000 abstract description 21
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- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical group [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 2
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Landscapes
- Laminated Bodies (AREA)
Abstract
The utility model relates to a high fiber content fiber reinforcement polyurethane synthetic sleeper that hard bubbles hard bubbles synthetic panel by the high fiber content fiber reinforcement polyurethane of polylith and bonds through the binder and form, and the high fiber content fiber reinforcement polyurethane of polylith hard bubbles the bonding mode of synthetic panel for vertical bonding, lateral bond or alternately bond, just the surface of sleeper is equipped with anticorrosive film. The utility model discloses an adopt the mixed type polyether glycol of the low degree of functionality of low hydroxyl value, use multiple technologies means such as coupling agent, the problem of polyurethane resin and fortifying fibre flooding insufficient is solved, thereby reinforcing fiber content has been improved, can produce density is higher than 840kgm3 and strengthens fiber content and be greater than 60% the fiber reinforcement polyurethane material goods that hard bubble, the technique that has remedied the synthetic panel of fiber reinforcement polyurethane foam is blank, make its product specification and performance pluralism, satisfy different technical indicator requirements.
Description
Technical field
This utility model belongs to technical field of polymer composite materials, especially relates to one kind and applies in heavy haul railway, height
A kind of high microsteping fibres in amounts in the fields such as fast railway, railroad bridge, common railway, light rail subway, common plank road strengthens poly- ammonia
Ester hard bubbles composite sleeper, and the fields such as urban construction, chemical industry, ship, panzer, lorry that are also extrapolated to use as boardwalk.
Background technology
Sleeper, is one kind of railway casting, plays vital effect in railway construction.In in rail structure, rail
The loading transmitted by rail, cross force and longitudinal horizontal force are born in the effect of pillow, it are equably spread on railway roadbed, meanwhile,
Sleeper also plays the effects such as holding rail direction, gauge and position.It is therefore desirable to sleeper to have certain robustness, elasticity and
Durability, and require sleeper specification to be easy to fixing rail, there is the ability of opposing circuit vertical, horizontal displacement.
At present, use reinforced concrete sleeper in heavy haul railway and common railway almost all, and reinforced concrete sleeper
Single weight is too big, and installation is extremely difficult, and meanwhile, it cannot be realized scene boring and install, need to be in factory's pre-embedded bolt set
Cylinder, because the error of built-in bolt sleeve is larger, cause install fastener precision not high it is impossible to effectively realize fastener and steel
The precision-fit of rail, especially in track switch part, due to the scale error of sleeper embedded sleeve barrel, causes substantial amounts of product, manpower
And the waste of material resources.In addition, reinforced concrete sleeper rigidity is too big, does not only possess damping effect, and transport for a long time in train
After battalion, general 5～10 years, be easy for that crackle occurs, cause potential safety hazard, need substantial amounts of replacing, considerably increase maintenance and
Replacement cost.
The railroad bridge affiliated facility such as almost all such as cable trough cover boards, pedestrian trail board uses Reinforced Concrete Materials
Or RPC material is made.RPC sheet material not only weight weight, constructional difficulties, and also quality is steady
Qualitative difference, low intensity.There is part circuit to be substituted using glass-reinforced plastic material, in glass-reinforced plastic material aborning, add big
The powder of amount, it is easy to powder phenomenon-tion after exposing to the sun and rain, quality is unstable, product weatherability and loss of properties on aging,
After life-time service, there is potential safety hazard, its product weight is also heavier simultaneously, construction is relatively difficult, if glass-reinforced plastic material is made
Hollow-core construction, its mechanical property substantially reduces, and especially bolt pulling test strength is too low, there is potential safety hazard, and general 5～10 years just
Must change.
At present, in open bridge floors truss bridge, almost all adopts wooden sleeper, and making sleeper needs using substantial amounts of high-quality
Hard wood, wooden sleeper is always impregnated using creosote, increases its decay resistance, but uses chemical preservative sleeper
Bad impact is all brought to the health of environment and workman；Wooden sleeper is being exposed to the sun and rain and river, sea by long-term
After the corrosion of water, serious corrosion, substantial amounts of crackle, defect and hole of damaging by worms.In running, fastener railway spike holds
Easily lax, maintenance at least twice to be carried out every year, substantially, using being necessary for after 5 years changing, considerably increase bridge sleeper
Maintenance and replacement cost.A difficult problem for the maximum that countries in the world all suffer from is the confession of the high-quality timber for railroad sleeper now
The increase of continuous decrease, being gradually increased with freight volume, and time and human cost should be measured, the one-tenth that sleeper uses and changes
This more and more higher.
Along with the raising of people's environmental consciousness, the control of construction cost and quick, safe, comfortable the wanting to trip
Ask, reinforced concrete sleeper, armored concrete sheet material, RPC sheet material and wooden sleeper will progressively be revoked and more
Change, then the excellent new high-tech product composite sleeper of serviceability and synthetic plate.
At present, started the research to composite sleeper and its auxiliary product both at home and abroad one after another, the such as U.S. is moulded using waste and old pe
Material makes sleeper by surface peening, and Korea S makes sleeper with junked tire for main material, and Russia is carried out based on wood flour
The research of sleeper, India and the domestic research having carried out glass fiber reinforced plastics hollow sleeper, Japanese and domestic by polyurethane foam with glass
The composite sleeper that glass fiber is made is although decay resistance of these composite sleepers etc. is all excellent than wooden sleeper, but it is strong
Degree, fatigue performance, bolt pulling test strength, anti-bolt relaxation, anti-shear performance etc. all can not comprehensively meet Chinese Railway pairing
Become the requirement of sleeper.If the composite sleeper using waste and old pe plastic production is although intensity can meet requirement, but it is in fatigue resistance
In testing, occur in that crack conditions.Glass fiber reinforced plastics hollow sleeper is although its intensity meets requirement, but its railway spike pulling test strength is not
Sufficient 3t, far smaller than railway spike pulling test strength are more than the technical requirement of 6t, and crackle in resisting fatigue test.Japan and state
The fiber reinforcement polyurethane composite sleeper of interior production occurs in that sternly in heavy haul railway and common railway sleeper strength test process
Subside, suitable for application in heavy haul railway and common railway, being suitable only for applying light rail at home and abroad and subway railway line again
Lu Zhong.Above composite sleeper all can not accomplish that over-all properties reaches the test index requirement of railroad sleeper.
Japanese and domestic fiber reinforcement polyurethane hard bubbles composite sleeper, polyurethane used by polyether polyol with different
Polyisocyanate reactant forms, and the polyether polyols alcohol functionalities that it adopts are higher, polyurethane reaction time and solidification rate quickly, substantially
Time about upper 3 minute is curable, and its polyether polyol viscosity selected is big, and poor fluidity is difficult in polyurethane
Polyurethane and the uniform problem of fiber impregnation, the fiber reinforcement polyurethane foamed materialss making at present inside and outside native land are solved before solidification
In composite sleeper, fiber content is low, and polyurethane is uneven with fiber impregnation, and local polyurethane content is many, and abscess is big, and local is fine
Dimension hplc is many, dry yarn phenomenon, causes the strength of materials of making low, and intensity is uneven, quality is unstable.And due to it
Fiber content is low, and resin content is high, and aborning, resin expanded expansion produces substantial amounts of overlap, not only causes the wave of product
Take, increasing of cost of manufacture, also equipment and mould are caused with great damage.Moreover, due also to it cannot solve to gather
Urethane and the flooding problems of fiber, therefore it does not produce the fiber reinforcement polyurethane foamed materialss synthesis rail of higher glass fiber content
Pillow, does not produce the fiber reinforcement polyurethane foamed materialss composite sleeper of the higher density of higher glass fiber content.At present, not yet
Appear in the newspapers and market on have not seen that density is higher than 840kg/m3And fiber content is higher than 60% fiber reinforcement polyurethane foam
Materials synthesis sleeper.
Utility model content
For current reinforced concrete sleeper, wood tie, glass-reinforced plastic material sleeper and low glass fiber content fiber reinforcement
The technical deficiency of polyurethane foam sleeper, the purpose of this utility model is to provide a kind of high microsteping fibres in amounts to strengthen polyurethane
Hard bubble composite sleeper, and its combination property is better than the sleeper of above material, can effectively be substituted.
The technical scheme that this utility model solves above-mentioned technical problem is as follows: a kind of high microsteping fibres in amounts strengthens polyurethane
Hard bubble composite sleeper, strengthens hard polyurethane foam synthetic plate by polylith high microsteping fibres in amounts and is formed by binding agent bonding, many
The bonding mode that block high microsteping fibres in amounts strengthens hard polyurethane foam synthetic plate is vertical bonding, lateral bond or intersects viscous
Knot, and the outer surface of described sleeper is provided with anti-corrosion paint film.
On the basis of technique scheme, this utility model can also do following improvement.
Further, described high microsteping fibres in amounts strengthens hard polyurethane foam synthetic plate with polyurethane resin and reinforcing fiber
For matrix material, in terms of mass parts, the formula of polyurethane resin and polyurethane resin are as follows with the mass ratio of reinforcing fiber:
Further, described reinforcing fiber be glass fibre, carbon fiber, aramid fiber, in steel fibre any one or many
Plant mixing.
Further, described reinforcing fiber, based on long fibre, also includes chopped strand and fiber felt.
Further, described coupling agent is silane coupler.
Further, described anti ultraviolet agent is uv class anti ultraviolet agent.
Further, described high microsteping fibres in amounts strengthens hard polyurethane foam synthetic plate using continuous forming process making
Become, its continuous forming process include unreeling long fibre and fiber felt, injection polyurethane resin, add chopped strand, homogeneous impregnation,
Solidification, cooling, seven operations of fixed length cutting in crawler type lamination main frame.
Further, polyurethane resin is specifically passed through high pressure foaming machine, mobile casting equipment and right by described homogeneous impregnation
The frock answered is uniformly impregnated within surface and the inside of reinforcing fiber.
Further, described crawler type lamination main frame is to be collectively constituted by crawler type laminating machine and side block, side block
It is fixed on crawler type laminating machine, the height of die cavity and width are adjusted according to the size of block.
Further, the high microsteping fibres in amounts after fixed length cutting strengthens hard polyurethane foam synthetic plate, and its thickness is 10mm
～100mm, its width is 100mm～600mm, and its density is 200kg/m3～2000kg/m3.
Further, the inside of described high microsteping fibres in amounts enhancing hard polyurethane foam synthetic plate is provided with and prolongs along its length
The long fibre stretched, described long stapled outer wrap has polyurethane resin.
Further, the inside of described high microsteping fibres in amounts enhancing hard polyurethane foam synthetic plate is additionally provided with along its length
The chopped strand extending, the outer wrap of described chopped strand has polyurethane resin.
Further, the outer surface wrapping the polyurethane resin of long fibre and chopped fiber is provided with fiber felt.
Further, described high microsteping fibres in amounts enhancing hard polyurethane foam synthetic plate is provided with least two pieces, and it is vertically simultaneously
Row setting, and vertically bondd by binding agent.
Further, described high microsteping fibres in amounts strengthens hard polyurethane foam synthetic plate and is provided with least two pieces, its up and down according to
Secondary stacked, and pass through binding agent lateral bond.
Further, described high microsteping fibres in amounts enhancing hard polyurethane foam synthetic plate is provided with least four pieces, wherein two pieces
Sheet material is horizontally installed on other sheet material upper and lower ends, and other sheet materials are vertically set up in parallel, and are vertically bondd by binding agent, described
Two plates pass through binding agent lateral bond with other sheet materials.
Further, described binding agent be vinylite binding agent, epoxy adhesive, polyurethane resin binding agent,
Any one in adjacent benzene resinoid bond, isophthalic resin binding agent or phenolic resin adhesive.
Further, described anti-corrosion paint film is Polyurethane lacquer, F-C paint film, acrylic acid paint film, epoxy resin paint film, ethylene
Any one in base resin paint film.
This utility model further relates to the manufacture method that a kind of high microsteping fibres in amounts strengthens hard polyurethane foam composite sleeper, first
Make high microsteping fibres in amounts and strengthen hard polyurethane foam synthetic plate, then it is processed, manufacturing procedure includes high microsteping and contains
Amount fiber reinforcement polyurethane hard bubble the polishing of synthetic plate surface, binding agent bonding, molded curing, after solidification surface polish, fixed length
Cutting, six operations of application.
Further, the high microsteping fibres in amounts that obtains strengthens hard polyurethane foam composite sleeper, its thickness be 100mm～
400mm, its width is 200mm～400mm, and its density is 200kg/m3～2000kg/m3.
A kind of high microsteping fibres in amounts of the present utility model strengthens hard polyurethane foam composite sleeper, has the advantage that
By the mixed type polyether polyol using the low degree of functionality of low hydroxyl value, reduce the activity of polyurethane reaction, extend
The hardening time of polyurethane, increased the dip time of itself and fiber, the viscosity of the polyether polyol simultaneously adopting is relatively low, stream
Dynamic property is good, increased its impregnability with fiber so as to more uniform with fiber impregnation；
By increasing coupling agent, substantially increase wettability in polyurethane for the filler and dispersibility, increased polyurethane
With impregnability and the adhesive power of fiber, make resin more thorough with fiber impregnation, and improve the dipping fiber of polyurethane
Wetting-out rate, solves the problem that reinforcing fiber is excessive, is difficult to impregnate, so that strength of materials performance increases substantially and intensity
Uniformity is more stable；In addition, by adding coupling agent, the electric property of material can also be greatly improved；
By the mixed type polyether polyol using the low degree of functionality of low hydroxyl value, using the multiple technologies means such as coupling agent, solution
Polyurethane of the having determined problem insufficient with fiber impregnation, thus improve fiber content, can produce density is higher than 840kg/
m3And fiber content is more than 60% fiber reinforcement polyurethane and hard bubbles composite sleeper, compensate for fiber reinforcement polyurethane foam and close
The technological gap becoming sleeper, so as to product specification and performance diversification, meets different technical requirements.
By improving the mass ratio of reinforcing fiber, make the mass ratio of reinforcing fiber be more than 60%, not only reduce system
Make cost, and greatly improve fiber reinforcement polyurethane under same isodensity and hard bubble the intensity of composite sleeper, product is more simultaneously
Plus fine and close, index such as water absorption etc. is greatly reduced, and improves the water resistance of product；
Hard bubbled stabilizer by adding, it is to avoid the generation of polyurethane foam abscess problems of too, make hard polyurethane foam more
Plus uniformly, more stable.
By adding fire retardant, not only reduce the viscosity of polyether polyol so as to good fluidity, and enhance material
Fire resistance；
By adding antioxidant, enhance the performance of the wet and heat ageing resistant of material；
By adding anti ultraviolet agent, further enhancing the performance of the uvioresistant day photoaging of material；
By increasing chopped strand, make material finer and close, further increase the intensity of product；
By increasing fiber felt, further increase the flexural strength of product.
Strengthen hard polyurethane foam synthetic plate by making high microsteping fibres in amounts, molding by the way of bonding, make conjunction
Become production method and the process simplification of sleeper, and in the case of not increasing mould input, increase the specification of composite sleeper
Model；And effectively solve excessive because being integrally formed middle fiber, cause the too big problem of polyurethane impregnated difficulty, may be used simultaneously
To make the synthetic plate of different densities, make the density polyol of composite sleeper, so that intensity diversification, meet railway transportation
In the not coaxially requirement to composite sleeper for the train of heavy number.
A kind of this utility model high microsteping fibres in amounts strengthens hard polyurethane foam composite sleeper, and its combination property is far superior to
Wooden sleeper, and the far superior to research both at home and abroad at present of its intensity, anti-fatigue performance, bolt pulling test strength, shear strength
Composite sleeper.
The high microsteping fibres in amounts that this utility model provides strengthens polyurethane composite sleeper, can effectively replace excellent at present
The composite sleeper of the other materials of the wooden sleeper of matter and domestic and international research, can be widely applied to heavy haul railway, high-speed railway,
The construction of common railway, railroad bridge, light rail and subway, and extend to chemical industry boardwalk, seashore plank road, lorry deck, ship
The fields such as oceangoing ship deck, market landscape.
Brief description
Fig. 1 is the production technology schematic diagram that this utility model high microsteping fibres in amounts strengthens hard polyurethane foam synthetic plate；
Fig. 2 is that this utility model high microsteping fibres in amounts strengthens the knot that the vertical bonding of hard polyurethane foam synthetic plate becomes sleeper
Structure schematic diagram；
Fig. 3 is that this utility model high microsteping fibres in amounts strengthens the knot that hard polyurethane foam synthetic plate transverse bonding becomes sleeper
Structure schematic diagram；
Fig. 4 is that this utility model high microsteping fibres in amounts strengthens the knot that hard polyurethane foam synthetic plate intersection bonding becomes sleeper
Structure schematic diagram.
In accompanying drawing, the list of parts representated by each label is as follows:
1st, creel, 2, high-pressure foam equipment, 3, mobile casting equipment 4, crawler belt lamination main frame, 5, cutting machine, 6, long fibre,
7th, chopped strand, 8, polyurethane resin, 9, fiber felt, 10, high microsteping fibres in amounts strengthen polyurethane rigid foam board, 11, bonding
Agent, 12, anti-corrosion paint film.
Specific embodiment
Below in conjunction with accompanying drawing, principle of the present utility model and feature are described, example is served only for explaining this practicality
New, it is not intended to limit scope of the present utility model.
This utility model is related to a kind of high microsteping fibres in amounts and strengthens hard polyurethane foam composite sleeper, is contained by polylith high microsteping
The amount fiber reinforcement polyurethane synthetic plate 10 that hard bubbles forms by binding agent 11 bonding, the polylith high microsteping fibres in amounts poly- ammonia of enhancing
The hard bubble bonding mode of synthetic plate 10 of ester is vertical bonding, lateral bond or intersects bonding, and the outer surface of described sleeper sets
There is anti-corrosion paint film 12.
Described high microsteping fibres in amounts strengthens hard polyurethane foam synthetic plate 10
Matrix material, in terms of mass parts, the formula of polyurethane resin 8 and polyurethane resin 8 are as follows with the mass ratio of reinforcing fiber:
Described reinforcing fiber is glass fibre, carbon fiber, aramid fiber, any one or more mixing in steel fibre.
Described reinforcing fiber, based on long fibre 6, also includes chopped strand 7 and fiber felt.
Described coupling agent is silane coupler.
Described anti ultraviolet agent is uv class anti ultraviolet agent.
Described high microsteping fibres in amounts is strengthened hard polyurethane foam synthetic plate 10 and is made using continuous forming process, its
Continuous forming process includes unreeling long fibre 6 and fiber felt, injection polyurethane resin 8, adds chopped strand 7, homogeneous impregnation, shoe
Solidification, cooling, seven operations of fixed length cutting in belt lamination main frame 4.
Polyurethane resin 8 is specifically passed through high pressure foaming machine 2, mobile casting equipment 3 and corresponding by described homogeneous impregnation
Frock is uniformly impregnated within surface and the inside of reinforcing fiber.
Described crawler type lamination main frame 4 is to be collectively constituted by crawler type laminating machine and side block, and side block is fixed on
On crawler type laminating machine, the height of die cavity and width are adjusted according to the size of block.
Fixed length cutting is carried out by cutting machine 5, and the high microsteping fibres in amounts after cutting strengthens hard polyurethane foam synthesis
Sheet material 10, its thickness is 10mm～100mm, and its width is 100mm～600mm, and its density is 200kg/m3～2000kg/m3.
As shown in Figures 2 to 4, the inside of described high microsteping fibres in amounts enhancing hard polyurethane foam synthetic plate 10 is provided with edge
The long fibre 6 that length direction extends, the outer wrap of described long fibre 6 has polyurethane resin 8.
The inside of described high microsteping fibres in amounts enhancing hard polyurethane foam synthetic plate 10 is additionally provided with and extends along its length
Chopped strand 7, the outer wrap of described chopped strand 7 has polyurethane resin 8.
The outer surface wrapping the polyurethane resin 8 of long fibre 6 and chopped fiber 7 is provided with fiber felt.
As shown in Fig. 2 described high microsteping fibres in amounts strengthens hard polyurethane foam synthetic plate 10 is provided with least two pieces, it erects
To being set up in parallel, and vertically bondd by binding agent 11.
As shown in figure 3, described high microsteping fibres in amounts strengthens hard polyurethane foam synthetic plate 10 is provided with least two pieces, thereon
Under be sequentially stacked, and pass through binding agent 11 lateral bond.
As shown in figure 4, described high microsteping fibres in amounts strengthens hard polyurethane foam synthetic plate 10 is provided with least four pieces, wherein
Two plates are horizontally installed on other sheet material upper and lower ends, and other sheet materials are vertically set up in parallel, and are vertically glued by binding agent 11
Knot, described two plates (have vertical bonding and transverse bonding, as with other sheet materials by binding agent 11 lateral bond simultaneously
Intersect bonding).In addition to the sheet material that upper and lower ends have horizontally set, one block of sheet material can also be set in upper end or lower end,
It is provided with least three pieces, one of upper end being horizontally installed on other sheet materials or lower end, other sheet materials are vertically set up in parallel, and
Vertically bondd by binding agent 11, described one block of sheet material passes through binding agent 11 lateral bond with other sheet materials.
Described binding agent 11 is vinylite binding agent, epoxy adhesive, polyurethane resin binding agent, adjacent benzene tree
Any one in fat binding agent, isophthalic resin binding agent or phenolic resin adhesive.
Described anti-corrosion paint film 12 is Polyurethane lacquer, F-C paint film, acrylic acid paint film, epoxy resin paint film, vinyl tree
Any one in fat paint film.
This utility model further relates to the manufacture method that a kind of high microsteping fibres in amounts strengthens hard polyurethane foam composite sleeper 10,
First make high microsteping fibres in amounts and strengthen hard polyurethane foam synthetic plate 10, then it is processed, manufacturing procedure includes high fibre
Dimension hplc fiber reinforcement polyurethane hard bubbles, and the polishing of synthetic plate 10 surface, binding agent 11 bond, molded curing, surface is beaten after solidification
Mill, fixed length cutting, six operations of application.
The high microsteping fibres in amounts obtaining strengthens hard polyurethane foam composite sleeper 10, and its thickness is 100mm～400mm, its
Width is 200mm～400mm, and its density is 200kg/m3～2000kg/m3It is preferred that its apparent gross density is in 800kg/m3-
1800kg/m3..
As shown in figure 1, this utility model high microsteping fibres in amounts strengthens the continuously shaped of hard polyurethane foam synthetic plate 10
Technique is carried out by the device shown in figure, first creel 1 unreel long fibre and fiber felt, injection polyurethane resin, add short
Cut fiber, then homogeneous impregnation is realized by high-pressure foam equipment 2, mobile casting equipment 3 and corresponding frock, then in crawler type
Solidification in lamination main frame 4, is cut to the sheet material after solidification by cutting machine 5 after cooling.
Embodiment 1:
In terms of mass parts, the ratio of the formula of polyurethane resin and polyurethane resin and reinforcing fiber is as follows: hydroxyl value 400～
480th, 90 parts of polyether polyol a of degree of functionality 1～3, hydroxyl value 60～160,10 parts of polyether polyol b of degree of functionality 1～2, resistance
10 parts of agent of combustion, hard bubble 5 parts of stabilizer, 15 parts of coupling agent, 0.3 part of catalyst, 0.1 part of foaming agent, 0.3 part of antioxidant, uvioresistant
0.3 part of agent, 120 parts of isocyanates；Long fibre: 430 parts, 10 parts of chopped strand, 5 parts of fiber felt.Wherein reinforced fiber content is
64%, make density 1400 ± 50kg/m3Fiber reinforcement polyurethane hard bubbles synthetic plate specification: 260mm × 50mm × 3000mm.
Crawler type lamination host parameter setting: the speed of service: 0.4m/min, temperature: 90 DEG C/60 DEG C.Synthetic plate surface is carried out beating
Four pieces of synthetic plates, using vinylite as binding agent, are carried out molding bonded by the way of vertical bonding, make by mill
Composite sleeper specification is 260mm × 200mm × 3000mm.The composite sleeper performance making according to the present embodiment is as shown in table 1.
Table 1
Embodiment 2:
In terms of mass parts, the ratio of the formula of polyurethane resin and polyurethane resin and reinforcing fiber is as follows: hydroxyl value 400～
480th, 95 parts of polyether polyol a of degree of functionality 1～3, hydroxyl value 60～160,5 parts of polyether polyol b of degree of functionality 1～2, fire-retardant
10 parts of agent, hard bubble 3 parts of stabilizer, 5 parts of coupling agent, 0.3 part of catalyst, 0.1 part of foaming agent, 0.3 part of antioxidant, anti ultraviolet agent
0.3 part, 110 parts of isocyanates；Long fibre: 410 parts, 10 parts of chopped strand, 0 part of fiber felt.Wherein reinforced fiber content is
65%, make density 1200 ± 50kg/m3Fiber reinforcement polyurethane hard bubbles synthetic plate specification: 240mm × 50mm × 3000mm.
Crawler type lamination host parameter setting: the speed of service: 0.6m/min, temperature: 90 DEG C/60 DEG C.By one of synthetic plate machine
Tool is polished into 40mm thickness, is polished into the synthetic plate of 40mm thickness using five pieces of 50mm thickness and one piece, using epoxy resin
As binding agent, by the way of intersecting bonding, carry out molding bonded, makings composite sleeper specification for 240mm × 290mm ×
3000mm.The composite sleeper performance making according to the present embodiment is as shown in table 2.
Table 2
Embodiment 3:
In terms of mass parts, the ratio of the formula of polyurethane resin and polyurethane resin and reinforcing fiber is as follows: hydroxyl value 400～
480th, 90 parts of polyether polyol a of degree of functionality 1～3, hydroxyl value 60～160,5 parts of polyether polyol b of degree of functionality 1～2, fire-retardant
15 parts of agent, hard bubble 5 parts of stabilizer, 10 parts of coupling agent, 0.2 part of catalyst, 0.3 part of foaming agent, 0.5 part of antioxidant, anti ultraviolet agent
0.5 part, 115 parts of isocyanates；Long fibre: 520 parts, 5 parts of chopped strand, 1 part of fiber felt.Wherein reinforced fiber content is
68.5%, make density 1000 ± 50kg/m3Fiber reinforcement polyurethane hard bubble synthetic plate specification: 500mm × 30mm ×
3000mm.Crawler type lamination host parameter setting: the speed of service: 0.5m/min, temperature: 90 DEG C/70 DEG C.By 500mm × 30mm
Synthetic plate, be first machined into the synthetic plate of 250mm × 30mm, take six pieces to carry out surface polishing, using vinyl tree
Fat, as binding agent, carries out molding bonded by the way of lateral bond, making composite sleeper specification be 250mm × 180mm ×
3000mm.The composite sleeper performance making according to the present embodiment is as shown in table 3.
Table 3
Embodiment 4:
In terms of mass parts, the ratio of the formula of polyurethane resin and polyurethane resin and reinforcing fiber is as follows: hydroxyl value 400～
480th, 95 parts of polyether polyol a of degree of functionality 1～3, hydroxyl value 60～160,10 parts of polyether polyol b of degree of functionality 1～2, resistance
5 parts of agent of combustion, hard bubble 5 parts of stabilizer, 10 parts of coupling agent, 0.1 part of catalyst, 0.1 part of foaming agent, 0.25 part of antioxidant, uvioresistant
0.25 part of agent, 125 parts of isocyanates；Long fibre: 460 parts, 10 parts of chopped strand, fiber felt 0.Wherein reinforced fiber content is
65%, make density 800 ± 50kg/m3Fiber reinforcement polyurethane hard bubbles synthetic plate specification: 200mm × 60mm × 3000mm.
Polished in three pieces of synthetic plate surfaces, using vinylite as binding agent, glued by the way of lateral bond
Form type, making composite sleeper specification is 200mm × 180mm × 3000mm.The composite sleeper performance making according to the present embodiment
As shown in table 4.
Table 4
Embodiment 5:
In terms of mass parts, the ratio of the formula of polyurethane resin and polyurethane resin and reinforcing fiber is as follows: hydroxyl value 400～
480th, 92 parts of polyether polyol a of degree of functionality 1～3, hydroxyl value 60～160,8 parts of polyether polyol b of degree of functionality 1～2, fire-retardant
10 parts of agent, hard bubble 2.5 parts of stabilizer, 15 parts of coupling agent, 1 part of catalyst, 1 part of foaming agent, 1 part of antioxidant, 1 part of anti ultraviolet agent,
100 parts of isocyanates；Long fibre: 1330 parts, 30 parts of chopped strand, 10 parts of fiber felt.Wherein reinforced fiber content is 85%, system
Make density 1500 ± 50kg/m3Fiber reinforcement polyurethane hard bubbles synthetic plate specification: 600mm × 10mm × 3000mm.Crawler type
Lamination host parameter setting: the speed of service: 0.4m/min, temperature: 90 DEG C/60 DEG C.By the synthetic plate of 600mm × 10mm, first
It is machined into the synthetic plate of 300mm × 10mm, is polished in ten pieces of synthetic plate surfaces, using epoxy resin as viscous
Knot agent, carries out molding bonded by the way of lateral bond, and making composite sleeper specification is 300mm × 100mm × 3000mm.
The composite sleeper performance making according to the present embodiment is as shown in table 5.
Table 5
Embodiment 5:
In terms of mass parts, the ratio of the formula of polyurethane resin and polyurethane resin and reinforcing fiber is as follows: hydroxyl value 400～
480th, 93 parts of polyether polyol a of degree of functionality 1～3, hydroxyl value 60～160,7 parts of polyether polyol b of degree of functionality 1～2, fire-retardant
10 parts of agent, hard bubble 2.5 parts of stabilizer, 15 parts of coupling agent, 0.8 part of catalyst, 0.6 part of foaming agent, 0.7 part of antioxidant, uvioresistant
0.5 part of agent, 135 parts of isocyanates；Long fibre: 1940 parts, 40 parts of chopped strand, 20 parts of fiber felt.Wherein reinforced fiber content
For 88%, make density 1800 ± 50kg/m3Fiber reinforcement polyurethane hard bubble synthetic plate specification: 100mm × 100mm ×
3000mm.Crawler type lamination host parameter setting: the speed of service: 0.4m/min, temperature: 90 DEG C/60 DEG C.Take 16 blocks of sheet materials, adopt
With epoxy resin as binding agent, carry out molding bonded by the way of intersecting bonding, be combined into 4 × 4 structure, make synthesis rail
Pillow specification is 400mm × 400mm × 3000mm.The composite sleeper performance making according to the present embodiment is as shown in table 6.
Table 6
Comparative example is analyzed
A kind of this utility model high microsteping fibres in amounts strengthens hard polyurethane foam composite sleeper, by using the low official of low hydroxyl value
The mixed type polyether polyol of energy degree, using the multiple technologies means such as coupling agent, solves polyurethane insufficient with fiber impregnation
Problem, thus improve fiber content, can produce density be higher than 840kg/m3, the fiber that fiber content is more than 60%
Strengthen polyurethane rigid foam material product, compensate for fiber increases the technological gap of polyurethane foam synthetic plate so as to product is advised
Lattice and performance diversification, meet different technical requirements.
By improving the mass ratio of reinforcing fiber, make the mass ratio of reinforcing fiber be more than 60%, not only reduce system
Make cost, and greatly improve fiber reinforcement polyurethane under same isodensity and hard bubble the intensity of composite sleeper, product is more simultaneously
Plus fine and close, index such as water absorption etc. is greatly reduced, and improves the water resistance of product；
Strengthen hard polyurethane foam synthetic plate by making high microsteping fibres in amounts, molding by the way of bonding, make conjunction
Become production method and the process simplification of sleeper, and in the case of not increasing mould input, increase the specification of composite sleeper
Model；And effectively solve excessive because being integrally formed middle fiber, cause the too big problem of polyurethane impregnated difficulty, may be used simultaneously
To make the synthetic plate of different densities, make the density polyol of composite sleeper, so that intensity diversification, meet railway transportation
In the not coaxially requirement to composite sleeper for the train of heavy number.
Have not seen that product density is higher than 840kg/m at present3, and the poly- ammonia of fiber reinforcement higher than 60% for the product fiber content
The report of ester foam composite sleeper and material object.By this utility model manufacture method, making density is 800 ± 50kg/m3Conjunction
Become sleeper, carry out test comparison, result with the fiber reinforcement polyurethane foam composite sleeper material object that well-known producer makes both at home and abroad
As shown in table 7.
Table 7
Relative analyses conclusion
It can be seen that, a kind of this utility model high microsteping fibres in amounts strengthens hard polyurethane foam composite sleeper, and its fiber content is big
In 60%, in the case that density difference is very few, made material, from mechanical property, anti-ultraviolet ageing performance, electrical resistance
On the bending resistance of the many-sides such as energy, water resistance, especially composite sleeper, screw spike extraction-resistant behavior and fatigue performance
It is far superior to all the composite sleeper product of well-known producer both at home and abroad.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all in this practicality
Within new spirit and principle, any modification, equivalent substitution and improvement made etc., should be included in guarantor of the present utility model
Within the scope of shield.
Claims (10)
1. a kind of high microsteping fibres in amounts strengthens hard polyurethane foam composite sleeper it is characterised in that described sleeper is high fine by polylith
The dimension hplc fiber reinforcement polyurethane synthetic plate that hard bubbles is formed by binding agent bonding, and polylith high microsteping fibres in amounts strengthens poly- ammonia
The hard bubble bonding mode of synthetic plate of ester is vertical bonding, lateral bond or intersects bonding, and the outer surface of described sleeper is provided with
Anti-corrosion paint film.
2. a kind of high microsteping fibres in amounts strengthens hard polyurethane foam composite sleeper it is characterised in that institute according to claim 1
The inside stating high microsteping fibres in amounts enhancing hard polyurethane foam synthetic plate is provided with the long fibre extending along its length, described length
The outer wrap of fiber has polyurethane resin.
3. a kind of high microsteping fibres in amounts strengthens hard polyurethane foam composite sleeper it is characterised in that institute according to claim 2
The inside stating high microsteping fibres in amounts enhancing hard polyurethane foam synthetic plate is additionally provided with the chopped strand extending along its length, institute
The outer wrap stating chopped strand has polyurethane resin.
4. a kind of high microsteping fibres in amounts strengthens hard polyurethane foam composite sleeper it is characterised in that wrapping according to claim 3
The outer surface wrapping the polyurethane resin of long fibre and chopped fiber is provided with fiber felt.
5. a kind of high microsteping fibres in amounts strengthens hard polyurethane foam composite sleeper it is characterised in that institute according to claim 1
State high microsteping fibres in amounts enhancing hard polyurethane foam synthetic plate and be provided with least two pieces, it is vertically set up in parallel, and by bonding
Agent vertically bonds.
6. a kind of high microsteping fibres in amounts strengthens hard polyurethane foam composite sleeper it is characterised in that institute according to claim 1
State high microsteping fibres in amounts enhancing hard polyurethane foam synthetic plate and be provided with least two pieces, it is sequentially stacked up and down, and by bonding
Agent lateral bond.
7. a kind of high microsteping fibres in amounts strengthens hard polyurethane foam composite sleeper it is characterised in that institute according to claim 1
State high microsteping fibres in amounts enhancing hard polyurethane foam synthetic plate and be provided with least four pieces, wherein two plates are horizontally installed on other
Sheet material upper and lower ends, other sheet materials are vertically set up in parallel, and are vertically bondd by binding agent, described two plates and other sheet materials
By binding agent lateral bond.
8. according to any one of claim 1 to 7, a kind of high microsteping fibres in amounts strengthens hard polyurethane foam composite sleeper, and it is special
Levy and be, described binding agent is vinylite binding agent, epoxy adhesive, polyurethane resin binding agent, adjacent benzene resin
Any one in binding agent, isophthalic resin binding agent or phenolic resin adhesive.
9. according to any one of claim 1 to 7, a kind of high microsteping fibres in amounts strengthens hard polyurethane foam composite sleeper, and it is special
Levy and be, described corrosion resistant coating mould is Polyurethane lacquer, F-C paint film, acrylic acid paint film, epoxy resin paint film, vinyl resin paint
Any one in film.
10. according to any one of claim 1 to 7, a kind of high microsteping fibres in amounts strengthens hard polyurethane foam composite sleeper, its
It is characterised by, the high microsteping fibres in amounts obtaining strengthens hard polyurethane foam composite sleeper, its thickness is 100mm～400mm, it is wide
Spend for 200mm～400mm, its density is 200kg/m3～2000kg/m3.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106120480A (en) * | 2016-08-17 | 2016-11-16 | 中国铁道科学研究院铁道建筑研究所 | A kind of high microsteping fibres in amounts strengthens hard polyurethane foam composite sleeper and preparation method thereof |
| WO2018033042A1 (en) * | 2016-08-17 | 2018-02-22 | 中国铁道科学研究院铁道建筑研究所 | High-fiber-content fiber-reinforced rigid polyurethane foam composite panel and method for manufacturing same |
| CN108276545A (en) * | 2018-03-19 | 2018-07-13 | 瑞尔华（上海）交通科技有限公司 | A kind of high performance polyurethane composite sleeper and preparation method thereof |
| CN113085225A (en) * | 2021-03-31 | 2021-07-09 | 合肥工业大学 | Method for continuously preparing integral composite sleeper by using controllable polyurethane composite material |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106120480A (en) * | 2016-08-17 | 2016-11-16 | 中国铁道科学研究院铁道建筑研究所 | A kind of high microsteping fibres in amounts strengthens hard polyurethane foam composite sleeper and preparation method thereof |
| WO2018033041A1 (en) * | 2016-08-17 | 2018-02-22 | 中国铁道科学研究院铁道建筑研究所 | High-fiber-content fiber-reinforced rigid polyurethane foam composite railway sleeper and method for manufacturing same |
| WO2018033042A1 (en) * | 2016-08-17 | 2018-02-22 | 中国铁道科学研究院铁道建筑研究所 | High-fiber-content fiber-reinforced rigid polyurethane foam composite panel and method for manufacturing same |
| US20190185610A1 (en) * | 2016-08-17 | 2019-06-20 | Railway Engineering Research Institute Of China Academy Of Railway Sciences Corporation Limited | Fiber-reinforced rigid polyurethane foam composite railway sleeper with high fiber content and manufacturing method thereof |
| US10538615B2 (en) | 2016-08-17 | 2020-01-21 | Railway Engineering Research Institute Of China Academy Of Railway Sciences Corporation Limited | Fiber-reinforced rigid polyurethane foam composite railway sleeper with high fiber content and manufacturing method thereof |
| CN108276545A (en) * | 2018-03-19 | 2018-07-13 | 瑞尔华（上海）交通科技有限公司 | A kind of high performance polyurethane composite sleeper and preparation method thereof |
| CN113085225A (en) * | 2021-03-31 | 2021-07-09 | 合肥工业大学 | Method for continuously preparing integral composite sleeper by using controllable polyurethane composite material |
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