CN101985514B - Thermosetting resin composition and preparation method and using method thereof - Google Patents
Thermosetting resin composition and preparation method and using method thereof Download PDFInfo
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Abstract
The invention discloses a thermosetting resin composition and a preparation method and a using method thereof. The composition comprises a substance A and a substance B in a mass ratio of 100:1-100, wherein the substance B is a curing agent; the substance A consists of the following components in part by weight: 100 parts of thermosetting resin, 10 to 600 parts of filler, 1 to 10 parts of pigment, 0 to 100 parts of activated or non-activated thinner, 0 to 5 parts of ultraviolet absorbent, 0 to 5 parts of antioxidant, 0 to 2 parts of antifoaming agent and 0 to 5 parts of coupling agent; all the components of the substance A are stirred at the temperature of between 5 and 180 DEG C and the stirring rate of 10 to 3,000 revolutions per minute and mixed in vacuum for 0.1 to 10 hours and the substance A is obtained by packaging the mixture; and the substance B is obtained by packaging the curing agent. The composition is used as an elastic filling connection material among ballastless track slabs of a railway and has high adhesion, ultraviolet irradiation resistance, wet and heat ageing resistance and chemical corrosion resistance, and certain elasticity and mechanical strength.
Description
Technical field
The present invention relates to a kind of compositions of thermosetting resin, particularly a kind of compositions of thermosetting resin for connecting between CRTSIII plate-type ballastless track roadbed plate.In addition, the invention still further relates to the preparation and application of above-mentioned compositions of thermosetting resin.
Background technology
The China Express Railway building cause has obtained the development of advancing by leaps and bounds in recent years, no matter is the mileage open to traffic that builds or all is in prostatitis, the world building circuit.
The construction mode of China Express Railway mainly contains two kinds of structure formations at present, a kind of is the CRTS I type track technology that adopts day present technique, its principal character is with track plates height-regulating support in advance on Steel Concrete roadbed or bridge pedestal, between track plates and pedestal, place polyester chemically woven fabrics infusion bag, and filling in the bag had certain elastic emulsified asphalt slurry, location between two track plates and to expand with heat and contract with cold then be that convex blocking platform by being located between the track plates is solved, the potting resin that perfusion has better elasticity and weather resistance between concrete convex blocking platform and track plates is realized its location and cushioning effect to track plates after solidifying.
Another kind is rich lattice plate or the bi-block track that adopts Germany technology, it is CRTS II template pattern, this pattern is pasted first the chemically woven fabrics sliding layer on concrete pedestal, then set up track plates and heighten, connect together with reinforcing bar between plate and the plate, heighten rear perfusion high-modulus asphalt mortar concrete, after the maintenance track plates integral body is polished, become high-precision integral slab.
Above-mentioned two kinds of templates find respectively to have its relative merits through railway construction in China and operation practice.CRTS I template pattern compares with CRTSII template pattern that to have cost relatively low, characteristics for ease of maintenaince, but the emulsified asphalt slurry intensity that also has perfusion is hanged down and is easy to aging breakage, and pack is poured in, and particularly the closely connected property in corner is poor between mortar bag and track plates, can exist the gap can produce when train operation up and down pats, injury falls piece after the long-time running, and maintenance load is strengthened.
CRTS II template pattern is compared with CRTS I template pattern and need to be carried out the integral body polishing, and equipment requirements is high, and cost is relatively also high, and in a single day subgrade settlement occur this template on the other hand, distortion will be difficult to carry out to its maintenance.
Deficiency for above-mentioned template, railway construction in China, design, research, unit in charge of construction are in conjunction with China's national situation, draw two kinds of templates advantage separately, overcome its deficiency, develop the novel high speed railway construction track plates pattern formula with independent intellectual property right property right, pass through into the Successful Practice of filling with inter-city passenger rail, named and be CRTSIII type rail plate technique pattern.
This new technology pattern adopts clastotype between plate and the plate at bridge, lays sliding layer at the bridge concrete pedestal, between sliding layer and track plates between perfusion from close formula concrete, be not connected the maintenance free state between track plates and the rail plate.But then need to connect lacking rigidly connected roadbed, a small amount of reinforcing bar connects except between plate, also need adopt suitable material to be connected between plate and the plate, to eliminate may being out of shape of earth roadbed.Suitable connecting material is still waiting exploitation at present, and as adopting cement to be rigidly connected, then this integral slab can't carry out thermal stress compensation between plate and the plate, may make the whole cracking of track plates under the effect of temperature variation thermal stresses.
For solving above-mentioned connectivity problem, need connecting material between a kind of plate with suitable elasticity modulus and compressive strength of exploitation, this connecting material must have easy construction, two track plates are had stronger bonding force, with the contraction stretching stress of avoiding track plates and connecting material to produce when the drop in temperature tack coat is broken away from; In order to guarantee to connect not cracking of resin, this connecting material also should have suitable elasticity and tension set, the elastic stretching deformation quantity that allows in its limited thickness should be greater than the shrinkage of track plates when the temperature variation, does not produce cracking or follows the string to guarantee connecting material.In order to carry out thermal compensation, after finishing, this connecting material construction also needs track plates is carried out stretch-draw, apply prestress, connecting material is carried out moderate compression, its draught should be in the regime of elastic deformation of connecting material, produces when shrinking compress variation at the track plates drop in temperature like this and just in time discharges and compensate.In order to guarantee the rail plate tension construction speed, this connecting material also should have intensity and rise comparatively fast, and the feature that the compression and tension Young's modulus is suitable namely guarantees when rail plate tension not only to produce certain deformation quantity but also is unlikely to be out of shape excessive, follows the string.Because the particular requirement of this track plates connecting material, no matter current material is that Resins, epoxy, urethane resin or unsaturated polyester or thermoplastic elastic material all can not satisfy above-mentioned performance requriements fully.
Summary of the invention
Technical problem to be solved by this invention is the particular requirement for connecting material between CRTSIII type track plates, a kind of compositions of thermosetting resin is provided, as connecting material between railway plate-type ballastless track base board, fully satisfied connecting material to over-all properties requirements such as concrete railway board stronger cohesiveness, suitable elasticity and compressive strength and modulus, ageing-resistant, antifatigues, and has good construction technology performance, can satisfy the Different climate condition, the requirement of different construction operating modes.
As follows for solving the problems of the technologies described above technical scheme of the present invention: a kind of compositions of thermosetting resin, comprise A, B two class materials, described category-B material is solidifying agent, the mass ratio of described A material and B material is 100: 1～100, described category-A material is comprised of the following by weight component of meter: 100 parts of thermosetting resins, filler 10-600 part, 1～10 part of pigment, 0～100 part of activity or non-activated thinner, 0～5 part of UV light absorber, 0～5 part in oxidation inhibitor, 0～2 part of defoamer, 0～5 part of coupling agent.
Described thermosetting resin is Racemic glycidol ether type epoxy or epoxy modified polyurethane resin, or Vinylite and the modifier thereof of Resins, epoxy and the formation of unsaturated fatty acids acid-respons.
Described Vinylite is that molecular weight is 300～1000 dihydroxyphenyl propane, bisphenol F epoxy resin or alicyclic glycidyl ether and vinylformic acid, methacrylic acid, maleic acid or MALEIC ANHYDRIDE MIN 99.5 unsaturated fatty acids reaction product, and dilute with vinyl monomer, described urethane resin is polyethers or polyester polyol and aliphatics, or is the reaction product of polyethers or polyester polyol and aromatic diisocyanate.
Described Resins, epoxy is that molecular weight is dihydroxyphenyl propane, Bisphenol F or the alicyclic glycidyl ether of 340-800, and the low viscosity epoxy resin that dilutes with reactive thinner of above-mentioned Resins, epoxy.
Above-mentioned epoxy modified polyurethane resin is that leading-in end hydroxyl segment is as the A component on the Resins, epoxy molecular chain, and isocyanic ester or its prepolymer fully mix afterreaction when A, the use of B component and form the epoxy modified polyurethane resin as solidifying agent B component.The A component can make by following preparation method: add the terminal hydroxy group compound that accounts for weight epoxy 0.1～100% in a kind of Resins, epoxy or multiple epoxy resin composition, add than the catalyzer that accounts for weight epoxy 0～5% again, 50～180 ℃ of lower reactions 0.5～5 hour, then add color stuffing, reactive thinner and other auxiliary agents, make through grinding distribution.Wherein the terminal hydroxy group compound is end hydroxy polyether polyvalent alcohol, C2-18 binary or polyvalent alcohol, (two, the three) thanomin of molecular weight 100～10000 etc.Wherein catalyzer is Lewis acid, such as boron trifluoride, aluminum chloride, tin tetrachloride, and alkali metal hydroxide such as sodium hydroxide, potassium hydroxide etc.
Above-mentioned compositions of thermosetting resin, wherein pigment is carbon black or iron oxide black and titanium dioxide.
Above-mentioned composition epoxy resin, wherein filler is silicon oxide, aluminum oxide or calcium oxide, can also add short glass fiber or carbon fiber.The effect that adds filler also can be played the effect of the volumetric shrinkage that reduces resin curing process except the production cost that reduces compositions of thermosetting resin, bat wool also can be used as framework material in composition strengthens, and prevents that cracking from appearring in resin combination in life-time service.The filler main chemical compositions is silicon-dioxide, aluminium sesquioxide or calcium carbonate, talcum powder, mica powder, kaolinic mix powder, preferred 50～100 parts of add-on, and the filler granularity is 100～2000 orders, preferred 200～800 orders.
Above-mentioned compositions of thermosetting resin, wherein reactive thinner is aliphatics list or polyglycidyl ether, alicyclic list or polyglycidyl ether, aromatic series list or the polyglycidyl ether with epoxide group, epoxy equivalent (weight) is 100～2000g/mol, and viscosity is 1～1000mpa.s25 ℃; Or vinylbenzene, the acrylate that can carry out radical polymerization, viscosity is 1～1000mpa.s25 ℃.Can select reactive thinner to be that viscosity 1-300mpa.s25 ℃ aliphatics is single shrinks or many shrinks ether, the aromatic series list shrinks or the unsaturated fatty acid esters such as many shrinks ether, vinylbenzene, vinyl toluene, acrylate, methacrylic ester.
Above-mentioned compositions of thermosetting resin, wherein UV light absorber is benzophenone analog derivative such as UV531 etc., preferred 0.5～1.5 part of add-on.
Upper compositions of thermosetting resin, wherein oxidation inhibitor is sterically hindered phenol or phosphorous acid ester, preferred 1～2 part of add-on.
Above-mentioned compositions of thermosetting resin, wherein defoamer is the silicane defoamer, preferred 0.1～0.5 part of add-on.
Above-mentioned composition epoxy resin, wherein coupling agent is end amido or epoxy radicals silicone hydride or titanate coupling agent, preferred 1～2 part of add-on.
Above-mentioned compositions of thermosetting resin, described category-B material solidifying agent is one or more following mixtures: amine curing agent, modified amine curing agent, organo-peroxide, aliphatics or aromatic diisocyanate or aliphatics, aromatic diisocyanate and polyethers or polyester polyol reaction product.The solidifying agent that wherein matches with Resins, epoxy is one or more the mixture in amine curing agent, the modified amine curing agent.Amine curing agent is alicyclic amine solidifying agent, aliphatics amine solidifying agent, aromatic amine solidifying agent.Alicyclic amine solidifying agent comprises different Fu Er ketone diamines (IPDA), cyclohexanediamine.Aliphatics amine solidifying agent comprises diethylenetriamine, Triethylenetetramine (TETA), polyethylene polyamine.The aromatic amine solidifying agent comprises mphenylenediamine, m-xylene diamine.The method of modifying of above-mentioned amine curing agent comprise with the epoxide addition, with the Michael addition of unsaturated double-bond, with the amidate action of saturated or unsaturated monobasic or polycarboxylic acid and with the Manny base addition of phenolic compound.Preferred alicyclic or aliphatics amine solidifying agent and modifier thereof of solidifying agent wherein, its cured article has preferably weathering resistance.Modified amine curing agent reactive hydrogen equivalent is 20～400g/mol, preferred 50～200g/mol, and viscosity is 10～100000mpa.s25 ℃, preferred 200～20000mpa.s25 ℃.
Above-mentioned compositions of thermosetting resin, the solidifying agent that wherein matches with urethane resin is isocyanic acid and prepolymer thereof, comprise aliphatics, alicyclic and aromatic diisocyanate, such as tolylene diisocyanate, '-diphenylmethane diisocyanate, hexamethylene diisocyanate, isofoer diisocyanate etc.Above-mentioned compositions of thermosetting resin, the solidifying agent that wherein matches with Vinylite are organo-peroxide such as superoxide methylethylketone, pimelinketone, benzoyl and mixture thereof etc.
Another technical problem to be solved by this invention provides the preparation method of above-mentioned hot resin combination:
Above-mentioned compositions of thermosetting resin under 5～180 ℃, under 10～3000 rev/mins of stirring velocitys, mixes grinding 0.1～10 hour with category-A material all components, and packing is rear as category-A; The solidifying agent packing is rear as category-B.
In the actual production, available enamel reaction stirring tank, stainless steel reaction stirring tank, high speed dispersor or three-roll grinder mix grinding with category-A material all components, and packing is rear as category-A.Preferred high speed dispersor mixes, and also can mix first at reaction stirring tank or high speed dispersor, then disperses then better effects if at three-roll grinder.
The technical problem that the present invention also will solve provides above-mentioned hot resin combination as the using method of connecting material between CRTSIII type railway plate-type ballastless track plate:
(1) after track plates is accurately heightened and located the bottom of the preset clearance between two track plates is secured with rigid foam, and secure with the both sides of dedicated templates with preset clearance, make the perfusion fluid can not be under the track plates and the both sides seepage, the junctor of reinforcing bar and shear plate part between two track plates separate with the template that scribbles releasing agent;
(2) stir the two ends of brushing after tackiness agent (connecting resin such as the employing epoxide resin type does not then need) fully mixes at two track plates;
(3) behind the adhesive gel of brushing, begin to stir the connection resin, be poured in after stirring except gap between two plates of junctor isolated part;
(4) connection resin to be poured into solidifies (at room temperature solidifying 10-12 hour) substantially, and first-class junctor applies certain force to track plates and carries out stretch-draw, makes the connection resin of perfusion produce the distortion of 0.001-1% elastic compression;
(5) track plates both sides formwork erection pours into from close formula concrete, and carries out maintenance formation intensity;
(6) stir to connect resin, take out the template that stops that between junctor, arranges for the first time, be poured in junctor and shear plate position between track plates with connecting resin, with its closed protective;
(7) at the protective cover that pours into good connection resin external coating UV resistant.
The invention provides a kind of compositions of thermosetting resin for connecting between CRTSIII type railway plate-type ballastless track track plates, said composition has bonds well power, good UV resistant irradiation, wet and heat ageing resistant, resistance to chemical attack to cement components, and have certain elasticity and physical strength, it is the connecting material between at present more excellent railway CRTSIII plate-type fragment-free track slab, and the preparation method of said composition is simple to operate, is easy to industrialization.
Embodiment
The invention will be further described below by embodiment.
Embodiment 1
In the high speed dispersion mixing tank, drop into bisphenol A type epoxy resin (E-51) 100kg, glycidyl ether type snappiness Resins, epoxy (Changshu good send out chemical the JEf-0221 of company limited) 20kg, hexylene glycol Racemic glycidol ether type epoxy (Changshu good send out chemical the JX-025 of company limited) 15kg, carbon black 0.1kg, talcum powder 100kg, defoamer A-530 (German Bi Ke chemistry) 0.1kg, coupling agent KH-560 1kg, 1000～1600 rev/mins of rotating speeds, 25～40 ℃ of lower mixing 1 hour, discharging is packed as the A component, viscosity 21000mpa.s, 25 ℃.
In reactor, add isophorone diamine (IPDA) 340g, stirring is warming up to 60～80 ℃, drip alicyclic tetraglycidel ether epoxy resin (Changshu good send out chemical the JEw-0110 of company limited) 85kg, butylglycidyl ether (BGE) 160kg, keep reaction 3～5 hours, add antioxidant 1010 10g, the deaeration discharging is as category-B under the-0.1MPa, viscosity 1500mpa.s, 25 ℃.
After track plates is accurately heightened and located the bottom of the preset clearance between two track plates is secured with rigid foam, and secure with the both sides of dedicated templates with preset clearance, make the perfusion fluid can not be under the track plates and the both sides seepage, the junctor of reinforcing bar and shear plate part between two track plates separate with the template that scribbles releasing agent.Begin to stir between above-mentioned plate after the envelope mould finishes and connect resin, get above-mentioned A component 20kg, after agitation vat is with hand electric agitator dispersed with stirring, pour supporting B component 5kg into, continue to stir and be poured into the web plate seam after 2-10 minute, viscosity was 14000mpa.s25 ℃ after A, B mixed, but 25 ℃ of usage periods are 1 hour, and gel time is 2 hours, and be 8 hours first set time.First-class connector bolt after 12 hours is finished in perfusion, and track plates is carried out stretch-draw, and the 3-5Mpa that exerts pressure connects resin pre compressed magnitude 0.5-1mm.Seal mould in the track plates two sides with steel plate after rail plate tension is finished, perfusion is used above-mentioned resin dosing equipment connector part again, and is covered with the good surface protection coating of UV resistant performance from close formula concrete after the concrete drying of pouring into.Connect the resin any surface finish between the plate after the curing, be connected good leakless with the track plates both sides.Get above-mentioned connection resin mixture cast phase strain stretch, compression verification original mold tool, test pour mass pi of strength such as table 1 in different set times.
Table 1, example 1 connect resin property
Embodiment 2
The propylene glycol end-blocking polyoxytrimethylene and the ethylene oxide copolymer 100kg that add molecular weight 1500-1600 at reactor, SnCl
40.6kg, stirring is warming up to 50 ℃, in 2～3 hours, add cycloaliphatic epoxy resin JEw-0121 16kg, bisphenol A epoxide resin E-51 (molecular-weight average 380) 18kg, reacted 3 hours, the propylene glycol end-blocking polyoxytrimethylene 30kg that adds again molecular weight 400～500,400-600 order silica powder 100kg, coupling agent KH560 1.5kg, stir and heat up at 100～120 ℃, remove low volatile under the-0.1MPa, cooling is ground discharging at three-roll grinder and is packed as the A component, test hydroxyl equivalent 1200g/mol, viscosity 24000mpa.s25 ℃.
The glycerol end-blocking polyoxytrimethylene and the ethylene oxide copolymer 100kg that add molecular weight 1500～1600 at reactor, 2,4 tolylene diisocyanate 23kg, stannous octoate 0.01kg stirs and is warming up to 50～80 ℃, keep reaction 3～5 hours, add again '-diphenylmethane diisocyanate 13kg, deaeration discharging under-0.1MPa, test isocyanate content 7.3%, viscosity 2500mpa.s25 ℃, as category-B.
After heightening with example 1 track plates with track plates side, both sides brushwork epoxy resin tackiness agent behind the envelope mould of two track plates gaps, after the brushing adhesive stick begins to produce gel, begin to stir above-mentioned A component, then add supporting above-mentioned B component (A: B (weight)=100: 40), continue to stir the two track plates end clearances of pouring into after stirring in 3-5 minute behind the gluing, viscosity was 16000mpa.s25 ℃ after A, B mixed, but 25 ℃ of usage periods are 0.5 hour, gel time is 1 hour, and be 6 hours first set time.First-class connector bolt after 8 hours is finished in perfusion; track plates is carried out stretch-draw; 3-5Mpa exerts pressure; connect resin pre compressed magnitude 0.5-1mm; pour into from close formula concrete with steel plate envelope mould in the track plates two sides behind the rail plate tension; after the concrete drying of pouring into, use again above-mentioned resin dosing equipment connector part, and cover with the good surface protection coating of UV resistant performance.Connect the resin any surface finish between the plate after the curing, be connected good leakless with the track plates both sides.Get above-mentioned connection resin mixture and be cast in phase strain stretch, compression verification original mold tool, test pour mass pi of strength such as table 2 in different set times.
Table 2, example 2 connect resin property
Embodiment 3
Add cycloaliphatic epoxy resin JEw-0120 20kg, snappiness Resins, epoxy JEf-0221 15kg, bisphenol A epoxide resin E-51 65kg at reactor, Resorcinol 0.2kg, triphenylphosphine 0.5kg, vinylformic acid 22.2kg, methacrylic acid 13.8kg, 100～130 ℃ were reacted 5 hours, lowering the temperature 40-60 ℃ adds butyl acrylate 10kg, vinylbenzene 40kg, 400-600 order talcum powder 100kg, stir and pack as the A component viscosity 10500mpa.s25 ℃ by the discharging of three-roll grinder grinding distribution.
With embodiment 2, after track plates is heightened mould is sealed in two track plates gaps, track plates side, both sides brushwork epoxy resin tackiness agent, after the brushing adhesive stick begins to produce gel, begin to stir above-mentioned A component, then add B component superoxide methylethylketone (A: B=100: 0.5-1.5), cobalt iso-octoate (A component 0.2-0.5%), continue to stir the two track plates end clearances of pouring into after stirring in 3-5 minute behind the gluing, but 25 ℃ of usage periods after the stirring are 1 hour, gel time is 1.5 hours, and be 4 hours first set time.First-class connector bolt after 8 hours is finished in perfusion; track plates is carried out stretch-draw; 3-5Mpa exerts pressure; connect resin pre compressed magnitude 0.5-1mm; pour into from close formula concrete with steel plate envelope mould in the track plates two sides behind the rail plate tension; after the concrete drying of pouring into, use again above-mentioned resin dosing equipment connector part, and cover with the good surface protection coating of UV resistant performance.Get above-mentioned connection resin mixture and be cast in phase strain stretch, compression verification original mold tool, test pour mass pi of strength such as table 3 in different set times.
Table 3, example 3 connect resin property
Embodiment 4-6 adopts epoxide resin type to connect the comparison of resin differing materials prescription result of use.
Embodiment 4
With embodiment 1, the A component prescription that is not both is changed into: bisphenol A type epoxy resin (E-51) 100kg, butylglycidyl ether 15kg, carbon black 0.1kg, talcum powder 80kg, defoamer A-530 (German Bi Ke chemistry) 0.1kg, coupling agent KH-5601kg, 1000～1600 rev/mins of rotating speeds, 25～40 ℃ of lower mixing 1 hour, discharging is packed as category-A.A, B component are mixed in 100: 28 ratios, and viscosity is 14000mpa.s25 ℃ after mixing, but 25 ℃ of usage periods are 0.8 hour, and gel time is 1.5 hours, be 9 hours first set time after, the compound sampling is poured into a mould, condensate performance relatively sees Table 4.
Embodiment 5
With embodiment 1, the B component prescription that is not both is changed into butylglycidyl ether and diethylenetriamine affixture, the general trade mark 593, A, B component are mixed in 100: 20 ratios, and viscosity is 11000mpa.s25 ℃ after mixing, but 25 ℃ of usage periods are 0.9 hour, gel time is 1.3 hours, after just being 7 hours set time, the compound sampling is poured into a mould, and condensate performance relatively sees Table 4.
Embodiment 6
With embodiment 1, the B component prescription that is not both is changed into phenol, formaldehyde and quadrol and is carried out the addition reaction of Manny base and make, be equivalent to general trade mark T-31, A, B component are mixed in 100: 20 ratios, viscosity is 18000mpa.s25 ℃ after mixing, but 25 ℃ of usage periods are 0.3 hour, gel time is 0.5 hour, after just being 6 hours set time, viscosity increases too soon during this prescription cast, and exothermic heat of reaction is violent, water rear bubble more, with two track plates end faces separation phenomenon is arranged, the compound sampling is poured into a mould, and condensate performance relatively sees Table 4.
Table 4, example 4-6 connect the resin Performance Ratio
Above-mentioned comparative example shows, adopts ordinary epoxy resin and solidifying agent, departs from preferable range of the present invention, does not reach this connection resin technical property requirements.
Example 7-9 adopts different urethane resins as the application example that connects resin.
Embodiment 7
With embodiment 2, the A component that is not both does not add Resins, epoxy and carries out modification, the propylene glycol end-blocking polyoxytrimethylene and the ethylene oxide copolymer 100kg that add molecular weight 1500～1600 at reactor, the propylene glycol end-blocking polyoxytrimethylene 30kg of molecular weight 400～500,400-600 order silica powder 100kg, coupling agent KH5601.5kg, stir and heat up at 100～120 ℃, remove low volatile under the-0.1MPa, cooling is ground discharging at three-roll grinder and is packed as the A component, test hydroxyl equivalent 920g/mol, viscosity 11000mpa.s25 ℃.Above-mentioned A component is mixed by 100: 50 with the B component of example 2, and viscosity was 9200mpa.s25 ℃ after A, B mixed, but 25 ℃ of usage periods are 0.5 hour, and gel time is 1 hour, and be 6 hours first set time.Be poured in the track plates gap and find after 4 days that adhesive surface has cracking, show not add Resins, epoxy to carry out the modification viscosifying power relatively poor, easily peel off, sampling carry out the pour mass performance with to concrete binding test-results such as table 5.
Embodiment 8
With embodiment 2, institute is not both with snappiness Resins, epoxy JEf-0212 (Changshu Jia Fa chemical company) and substitutes alicyclic Racemic glycidol ether type epoxy JEw-0121, makes the A component, test hydroxyl equivalent 1220g/mol, viscosity 21000mpa.s25 ℃.Viscosity was 14300mpa.s25 ℃ after A, B mixed, but 25 ℃ of usage periods are 0.5 hour, and gel time is 1 hour, and be 6 hours first set time.Connect the resin any surface finish between the plate after the curing, be connected good leakless with the track plates both sides.Get above-mentioned connection resin mixture and be cast in phase strain stretch, compression verification original mold tool, test pour mass pi of strength such as table 5 in different set times.
Embodiment 9
With embodiment 2, be not both and substitute E-51 with the bisphenol A epoxide resin E-39 of molecular-weight average 512 and make the A component, test hydroxyl equivalent 12900g/mol, viscosity 69000mpa.s25 ℃.Viscosity was 43000mpa.s25 ℃ after A, B mixed, but 25 ℃ of usage periods are 0.4 hour, and gel time is 0.8 hour, and be 6 hours first set time.Resin viscosity is relatively poor than high workability during perfusion, and profile pattern is slightly poor.Get above-mentioned connection resin mixture and be cast in phase strain stretch, compression verification original mold tool, test pour mass pi of strength such as table 5 in different set times.
Table 5, example 7-9 connect the resin Performance Ratio
Embodiment 10-11 is that the Vinylite result of use that relevant Resins, epoxy and unsaturated fatty acids acid-respons form compares.
Embodiment 10
With embodiment 3, difference is that snappiness Resins, epoxy does not add, and changes bisphenol A epoxide resin E-51 80kg into, makes the A component, viscosity 26500mpa.s25 ℃.After track plates is heightened mould is sealed in two track plates gaps, track plates side, both sides brushwork epoxy resin tackiness agent, after the brushing adhesive stick begins to produce gel, begin to stir above-mentioned A component, then add B component superoxide methylethylketone (A: B=100: 0.5-1.5), cobalt iso-octoate (A component 0.2-0.5%), continue to stir the two track plates end clearances of pouring into after stirring in 3-5 minute behind the gluing, but 25 ℃ of usage periods after the stirring are 1 hour, gel time is 1.5 hours, and be 4 hours first set time.First-class connector bolt after 8 hours is finished in perfusion; track plates is carried out stretch-draw; 3-5Mpa exerts pressure; connect resin pre compressed magnitude 0.5-1mm; pour into from close formula concrete with steel plate envelope mould in the track plates two sides behind the rail plate tension; after the concrete drying of pouring into, use again above-mentioned resin dosing equipment connector part, and cover with the good surface protection coating of UV resistant performance.Get above-mentioned connection resin mixture and be cast in phase strain stretch, compression verification original mold tool, test pour mass pi of strength such as table 6 in different set times.
Embodiment 11
With embodiment 3, difference is that the B component that adds is benzoyl peroxide and 1: 1 mixture (A: B=100: 2) of butyl phthalate, and adding xylidine (A component 0.2%), but 25 ℃ of usage periods after the stirring are 1.5 hours, gel time is 2 hours, and be 5 hours first set time.Get above-mentioned connection resin mixture and be cast in phase strain stretch, compression verification original mold tool, test pour mass pi of strength such as table 6 in different set times.
Table 6, example 10-11 connect the resin Performance Ratio
Embodiment 12-14 is that relevant filler addition is to connecting the resin result of use relatively.
Embodiment 12
With embodiment 1, difference is that the talcum powder add-on is 20kg in the A component, all the other components are constant, make to get 8200mpa.s25 ℃ of A component viscosity, above-mentioned A component 20kg mixes with B component 7kg, and viscosity was 5100mpa.s25 ℃ after A, B mixed, but 25 ℃ of usage periods are 1 hour, gel time is 2 hours, and be 8 hours first set time.First-class connector bolt after 12 hours is finished in perfusion; track plates is carried out stretch-draw; 3-5Mpa exerts pressure; connect resin pre compressed magnitude 0.5-1mm; pour into from close formula concrete with steel plate envelope mould in the track plates two sides behind the rail plate tension; after the concrete drying of pouring into, use again above-mentioned resin dosing equipment connector part, and cover with the good surface protection coating of UV resistant performance.Connect the resin any surface finish between the plate after the curing, be connected good leakless with the track plates both sides.Get above-mentioned connection resin mixture cast stretching, compression verification mould, test pour mass pi of strength such as table 7 in different set times.
Embodiment 13
With embodiment 1, difference is that the talcum powder add-on is 200kg in the A component, all the other components are constant, make to get 85000mpa.s25 ℃ of A component viscosity, above-mentioned A component 20kg mixes with B component 3.4kg, and viscosity was 6800mpa.s25 ℃ after A, B mixed, and finds poor fluidity during perfusion, the cured article surface irregularity, pour mass performance test such as table 7 are carried out in sampling.
Embodiment 14
With embodiment 1, difference is that talcum powder is substituted by 400 order silica powders in the A component, add-on is 100kg, all the other components are constant, make to get 18000mpa.s25 ℃ of A component viscosity, above-mentioned A component 20kg mixes with B component 5kg, and viscosity was 1300mpa.s25 ℃ after A, B mixed, and pour mass performance test such as table 7 are carried out in sampling.
Table 7, example 12-14 connect the resin Performance Ratio
Above-described embodiment does not limit the present invention in any way, and every employing is equal to replaces or technical scheme that the mode of equivalent transformation obtains all drops in protection scope of the present invention.
Claims (1)
1. a compositions of thermosetting resin is filled the using method of connecting material as elasticity between railway plate-type ballastless track plate, it is characterized in that described compositions of thermosetting resin comprises A, B two class materials, described category-B material is solidifying agent, the mass ratio of described A material and B material is 100:1～100, described category-A material is comprised of the following by weight component of meter: 100 parts of thermosetting resins, filler 10-600 part, 1～10 part of pigment, 0～100 part of activity or non-activated thinner, 0～5 part of UV light absorber, 0～5 part in oxidation inhibitor, 0～2 part of defoamer, 0～5 part of coupling agent; Described thermosetting resin is Racemic glycidol ether type epoxy or epoxy modified polyurethane resin, or the Vinylite of Resins, epoxy and the formation of unsaturated fatty acids acid-respons, and described using method may further comprise the steps:
(1) after track plates is accurately heightened and located the bottom of the preset clearance between two track plates is secured with rigid foam, and secure with the both sides of dedicated templates with preset clearance, make the perfusion fluid can not be under the track plates and the both sides seepage, the junctor of reinforcing bar and shear plate part between two track plates separate with the template that scribbles releasing agent;
(2) stir tackiness agent, brushing is at the two ends of two track plates after fully mixing; If adopt the Racemic glycidol ether type epoxy as the compositions of thermosetting resin that connects resin then do not need to stir tackiness agent;
(3) behind the adhesive gel of brushing, begin to stir the connection resin, be poured in after stirring except gap between two plates of junctor isolated part;
The connection resin solidification that (4) will pour into 10-12 hour treats that it solidifies substantially, and first-class junctor applies certain force to track plates and carries out stretch-draw, makes the elastic compression distortion of the connection resin generation 0.001-1% of perfusion;
(5) track plates both sides formwork erection pours into from close formula concrete, and carries out maintenance formation intensity;
(6) stir another part and connect resin, take out the template that stops that between junctor, arranges for the first time, be poured in junctor and shear plate position between track plates with connecting resin, with its closed protective;
(7) at the protective cover that pours into good connection resin external coating UV resistant.
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