CN101921566A - Structural adhesive for steel bonding - Google Patents
Structural adhesive for steel bonding Download PDFInfo
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- CN101921566A CN101921566A CN2009100866145A CN200910086614A CN101921566A CN 101921566 A CN101921566 A CN 101921566A CN 2009100866145 A CN2009100866145 A CN 2009100866145A CN 200910086614 A CN200910086614 A CN 200910086614A CN 101921566 A CN101921566 A CN 101921566A
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Abstract
The invention discloses a structural adhesive for steel bonding, which comprises a component A and a component B of which the quality ratio is 100:(15-65), wherein the component A comprises epoxy resin, diluter, plasticizer, toughener and couplant; and the component B comprises modified polyamide resin, modified fatty amine and amino terminated polyether. The structural adhesive has the advantages of favorable bonding property, uniform stress distribution, high shearing strength and good mechanical toughness, has the characteristics of no flow after plate bonding, large anchorage withdrawal resistance and limit of harmful substances far below the national technical index, has the characteristics of high durability, convenient construction and stable strength, and can well soak the concrete and well bond the concrete and steel plates. The invention has high application and popularization values.
Description
Technical field
The present invention relates to a kind of structural adhesive for steel bonding.
Background technology
One, highway in China bridge strengthening present situation
According to national highway statistics annual report in 2004, by to 2003 the end of the year whole nation 10443 of unsafe bridges, 378439 linear meter(lin.m.)s are arranged, wherein the national highway unsafe bridge is 1942,110,000 linear meter(lin.m.)s.It is three classes that the technology status of bridge block more than 1.2 ten thousand (about 470,000 linear meter(lin.m.)s) is arranged on state's provincial highway, has the bridge of obvious potential safety hazard, in case be subjected to the influence of accidents such as heavily loaded traffic and natural disaster, these bridges change unsafe bridge most probably into.Therefore, the need repairing bridge enormous amount of strengthening reconstruction.
Nearly twenty or thirty is over year, and the emphasis of developed countries bridge construction has been put into the strengthening and reforming aspect of old bridge, and newly-built bridge has been reduced to back burner.From the eighties in last century, China has just begun the research of highway bridge reinforcement technique, by with exchanging of abroad going together, formed now the reinforcement means of multiple comparative maturity.Heavy day by day along with the work of old bridge strengthening reconstruction, the case history that bridge structure is reinforced is more and more, and aspect the Technology Bridge Strengthening transformation, particularly consolidation of concrete structure reinforcement has accumulated rich practice experience.Large quantities of old bridge unsafe bridges have obtained punishment, for have a good transport and communication network, safe operation made major contribution.
1, the purpose of bridge strengthening and type
According to the disease check and analysis and the lesion assessment result of bridge structure, bridge strengthening generally can be divided into: bearing capacity is reinforced (intensity reinforcing), functions of use is reinforced four types of (rigidity reinforcing), weather resistance reinforcing and seismic hardenings etc.
1) the bearing capacity reinforcing is the basis of guaranteeing the bridge security operation, is the core content that bridge is transformed Design of Reinforcement, and its content comprises that the normal section anti-bending bearing capacity is reinforced and the oblique section shear-carrying capacity is reinforced two portions.It generally is the deficiency that adopts the enlarging section size and increase arrangement of reinforcement or set up the additional bearing capacity of prestressed method that bearing capacity is reinforced, and should consider during design that the bridge band carries the stressed characteristics of segmentation of reinforcing, and notes newly adding the co-operation of supporting material and primary structure.
2) to reinforce be the needs of guaranteeing the bridge works better to functions of use, mainly be to the mobile load distortion or vibrate excessive member, and the enlarging section size, increasing section rigidity makes crack closure or the development of restriction crack to satisfy the requirement of structure functions of use.
3) weather resistance is reinforced and to be meant the structural impairment position is repaired and reinforcement, continues to worsen with the performance that stops the structural impairment part, eliminates damage hidden danger, extending structure work-ing life.
4) seismic hardening is a shock resistance of the structure that suffers eaerthquake damage being repaired, strengthened the ductility of structure and integral working, raising structure.At present, following technical measures are mainly taked in the domestic and abroad bridge seismic hardening: 1. at the expansion joint, top seam such as hinge and beam-ends adopt pull bar, block or increase measure such as width of supporting surface, in case the generation of falling stop beam earthquake; 2. increase the lateral confinement of reinforced concrete bridge pier, improve its bending resistance ductility and slip resistance, prevent that bridge pier is crooked and shear earthquake; 3. adopt to subtract seismic isolation technology and special energy-dissipating device, improve the anti-seismic performance of bridge.
2, bridge superstructure Reinforcement Technology
1) external prestressing strengthening method
External prestressing strengthening is the outside that the presstressed reinforcing steel with corrosionproof protection is arranged in the beam body, and the beam body is applied prestress, offsets the internal force that the part external load produces with the recurvation square that pre-tension produces, and reaches the functions of use of improving beam and the purpose that improves bearing capacity.Because bridge structure generally all adopts band to carry and reinforces, after add supporting material and only bear the internal force that mobile load causes, after add supporting material stress (strain) and lag behind, be difficult to play a role fully.To after add supporting material and apply and add supporting material stress (strain) after prestress can solve and lag behind, add the supporting material utilising efficiency after the raising, case beam inside provides the space for prestressed layout simultaneously, and this method is specially adapted to the reinforcing of prestressed concrete continuous box girder and continuous rigid frame box girder bridge.
2) enlarging section method for strengthening
The enlarging section method increases former concrete structure section area with newly watering Steel Concrete exactly, reaches the purpose that improves bearing capacity.Advantages such as this method is a kind of traditional reinforcement means, has construction simply, and is widely applicable.The intensity, rigidity stability and the splitting resistance that adopt this method to reinforce for structure all improve a lot.But shortcoming is also comparatively obvious, and situ wet work operations amount is big, and preserving period is longer, to producing and living certain influence is arranged all, so this method is often used for suspending traffic or be subjected to traffic to disturb the reinforcing of less bridge structure.Stress level when the consolidation effect of enlarging section is reinforced with primary structure, new and old structure integral working, the processing of bonding surface structure, construction technology, material property and factor such as off-load is directly related when reinforcing.
3) affixing steel plate reinforcement method
The affixing steel plate reinforcement method is to adopt structure glue, steel plate is directly sticked on the tensile zone or the shearing resistance weak part of the reinforced concrete structures that is reinforced, make it that to form integral body stressed jointly with the reinforced structure thing, to improve the rigidity of structure, improve its strained condition, limit fissured the development, improve the bearing capacity of structure.On sticking at the bottom of the beam or the steel plate of plate bottom surface, can significantly improve the rigidity and the normal section anti-bending bearing capacity of former beam.Stick on the steel plate on the beam sides,, can limit fissured the development, improve the oblique section shear-carrying capacity of beam if consistent with the principal tensile stress trajectory.
4) paste the carbon fiber reinforcement method
Pasting the fiber reinforced method of high-strength compound is to adopt structure glue that high-strength compound cloth (or plate) directly is bonded in to be reinforced the concrete structure vulnerable area, and to form integral body stressed jointly with reinforced structure, to limit fissured development, improves the bearing capacity of structure.When adopting stickup high-strength compound fibre method to carry out flexure member normal section bearing capacity and oblique section bearing capacity reinforcement and strengthening, the arrangement of cloth is identical with the affixing steel plate reinforcement method.The high-strength compound fiber that paste the back can limit fissured bending resistance and the shear-carrying capacity of carrying out, improve beam.The stress that adds reinforcing fiber after under the ultimate limit state depends on the ratio of reinforcement of former beam.The situation less for former depth of beam, that the ratio of reinforcement is bigger, after add reinforcing fiber the high tensile performance can not play one's part to the full.Adopt the stickup high-strength compound fiber reinforced, little to the rigidity raising of structure, be unfavorable for be deformed into the reinforcing of main purpose functions of use with control texture.The high-strength compound layer of fibers that paste the back can restrict fissured development, indirect raising the crack resistance of structure; The high-strength compound layer of fibers that contains multi-layer resinous glue and protection cover glue that paste the back can improve concrete anticorrosive and carbonization ability, weather resistance is reinforced adopt this method method for strengthening to suit.
5) distress in concrete enclosure method
The distress in concrete enclosure method is a kind of effective remedial measures.The crack closure method mainly comprises the sealing of less the carrying out of width surface, to width bigger carry out encapsulating.By aforesaid method, inside concrete is become sealing or successive, prevent from that extraneous objectionable impurities enters inside concrete behind concrete cracking to cause further infringement, can improve the concrete anti-deterioration ability of cracking greatly.
6) change structure stress system method
This kind reinforced, remodeling method is by changing the bridge structure stress system, reaching the purpose that improves load carrying capacity of bridge, as set up support under flexure members such as beam slab, reduces to calculate and strides directly; Or increase external Shu Tigao supporting capacity or freely supported structure vertically is connected to form continuous structure; Or under beam, set up stiff girder or composite beam, to reduce the internal stress of beam, adjust the beam position in addition in addition, strengthen newly-built side bar sectional dimension in modes such as adjustment lateral distribution coefficients.Certainly, along with the stressed of some member or cross section in the formed new system of the change of system should carry out conscientious checking computations by the new system requirement, and take appropriate measures.This method is the reinforcement measure a kind of commonly used that solves the superload vehicle; This kind method is more suitable for the serious bridge structure of disease of ultimate bearing capacity wretched insufficiency and normal functions of use forfeiture in addition.
3, bridge substructure reinforcement technique
Substructure reinforcing aspect can be divided into strengthening of foundation, bridge pier reinforcing and abutment and reinforce three classes.
1) strengthening of foundation
Method commonly used has the consolidation by grouting method, it is several to enlarge strengthening of foundation method, Steel Concrete cuff method for strengthening and augment pile foundation reinforcement method etc.
2) bridge pier is reinforced
Steel Concrete cuff method for strengthening, cement grout-reinforcement method, chemical grouting method for strengthening are arranged and add stake (post) method for strengthening etc.
3) abutment is reinforced
Method commonly used has sets up pull bar after adding hole off-load method for strengthening, platform behind the platform, and buttress or retaining wall reinforcement method and Steel Concrete shroud or stirrup method for strengthening etc. are several.
Two, highway bridge is reinforced the application and the state of the art of using structure glue both at home and abroad
Along with the development of concrete member reinforcement technique, the application of the tackiness agent that bridge strengthening is used more and more widely.Have great importance at aspects such as improving strengthening quality, saving man-hour and energy consumption, raising speed of application, beautifying constructure.
Though with high molecular synthetic material is the existing long developing history of reinforced glue stick of main component, but the member that is used for bridge structure is bonding, the appearance and the application of the sqtructural adhesive of Hydraulic and Hydro-Power Engineering reinforcing and repairing and the old and new's structure of modification, has only nearly 50 or six ten years history.
At the beginning of the fifties, Resins, epoxy has obtained to use widely, and the U.S. at first repairs highway pavement fast with epoxy resin structural adhesive.The sixties, some developed countries are widely used in construction structure glue in the engineerings such as highway, bridge, airfield runway, and the reinforcing that is used for hydro project and military installations.Enter the seventies, the construction structure glue of all kinds of excellent propertys occurs in succession, and expands its Application Areas to more aspect, as reinforcing, the reparation of foundation construction, Highrise buildings and the vehicular bridge etc. of bridge pier, in order to improve the supporting capacity of buildings.For example: the famous super modern theatre of Sydney, AUS will be built glue, and to be used for the assembly unit of roof system bonding, is the classics that construction structure glue is used.Enter the eighties, the application of construction structure glue is more general, as: the use construction structure glue steel plate that 6.3mm is thick of Britain Sai Feier university success is adhered to a highway bridge and side, makes the bridge of this original limit for tonnage amount 110t pass through the truck of 500t.This period, some countries are on the basis of widespread usage, strengthened the research of adhesive member load-carrying properties and behavior on the one hand, as: the transportation of Britain and road institute, Moscow School of Architecture ﹠ Civil Engineering etc. all carry out the reinforcement experiment of lintel, make job specificationsization on the other hand again, the U.S., Japan have all formulated the construction quality standard or the job specifications of construction structure glue, make the new development of having got back of this class glue kind.
Entered since the nineties, various research work are more deep, use more general, as: after the big earthquakes in Osaka and Kobe of Japan, it damages the reinforced column of bridge and beam etc., all uses epoxy construction structure glue (emulsion two-component-type) to reinforce, repair in a large number; Its glue kind also becomes increasingly abundant, except that bonding usefulness, also have anchoring with (as liking sharp moral glue), pour into and leak stopping use etc., make construction structure glue in the development of architecture adhesion agent, have more consequence.
China's construction structure glue comes across the initial stage eighties, helped build the carrier bar in a power transformation building of Liaoyang chemical fibre head factory because of designing under-reinforced by France in 1978, there are several beam many places crackle to occur, after adopt No. 31 construction structure glues of France west card Dole, steel plate is sticked on beam bottom reinforcement and strengthening, reach original design intensity, received saving of labor, material-saving, safe and reliable effect.Then formally assigned the research topic of " construction structure glue and application " by the Ministry of Construction in 1980, build the common tackling key problem of institute of section by the Dalian Chemistry and Physics Institute of the Chinese Academy of Sciences and Liaoning, finish problem in nineteen eighty-three, developed the construction structure glue of first kind of practicality of China, filled up domestic blank in this respect.In the sixties, the aqueduct that also once had some units such as University of Fuzhou building system to break with the epoxyn reparation, Guangzhou builds epoxyn on probation such as institute of section, northeast Railway Bureau and repairs reinforced concrete member.But the utilisation technology of systematically studying and release construction structure glue also should be first elected the JCN type construction structure glue that Liaoning occurs.
From last century the eighties so far, structure glue just begins to be applied in the bridge strengthening, has obtained certain effect.Mostly the used base-material of structure glue is the reasonable epoxy resin macromolecular compound of ageing-resistant performance, and its initial stage cohesive strength is very high, and effect is fine, can satisfy the each side requirement of design and construction.But organic high molecular compound this under varying environment condition long term, the aging or deterioration phenomenon that is inevitable, this may cause structural strength, the especially decline of structure and steel plate interface binding intensity makes steel-bonded reinforcement reinforcement decay or inefficacy.Therefore, the weather resistance research of structure glue is extremely urgent.
At present, before 20th century of China 60, the seventies and the large quantities of civilian and Industrial buildings built of the mid-80 be in maintenance, reinforcing period.With regard to Industrial buildings, three grades of buildings and dangerous factory building are also more.The dangerous caused Serious Accident of hiding in the building structure, " concrete structure reinforcement technical specifications " draft had been drafted by National Quality ﹠ Technology Inspection Bureau in 1998, comprising the affixing steel plate reinforcement method.And it is suitable in 2006 nominally issueds.
Steel-bonded reinforcement and bar planting have huge construction market with building structure adhesive in China, and in existing nearly 10,000,000,000 square metres buildings, a large amount of structures and bridge, culvert, the tunnel structure, concrete structure occupies very big proportion.In these concrete structures and structures, a lot of because aging, damage in the defective of design, construction and the life-time service process and disaster, cause that concrete structure cracking, anti-seismic performance are bad, bearing capacity deficiency etc. influences the problem that it reaches functions of use safely, is badly in need of effective, durable, the new high-tech material of easy construction and the operating technique of reinforcing and repairing.Progressively perfect along with steel bonding method and bar planting technology, fast, high-quality, safety, the new variety sqtructural adhesive will be brought into play in maintenance, transformation and the reinforcing engineering of reinforced concrete buildings more importantly and act on easily, have bigger market potential.
Summary of the invention
The purpose of this invention is to provide a kind of structural adhesive for steel bonding.
Structure glue provided by the invention comprises component first and component second; The mass ratio of component first and component second is 100: (15-65); Described component first comprises: Resins, epoxy, thinner, softening agent, toughner and coupling agent; Described component second comprises: modified polyamide resin, modified fatty amine and Amino Terminated polyether(ATPE).
Described Resins, epoxy can be at least a in bisphenol A type epoxy resin, phenolic aldehyde Resins, epoxy, the aminoepoxy resin; Described thinner can be at least a in propenyl glycidyl ether, butylglycidyl ether and the phenyl glycidyl ether; Described softening agent can be at least a in phthalic ester, phosphoric acid ester and two acid esters; Described toughner can be at least a in thiorubber and the paracril; Described coupling agent can be at least a in organosilane, organic carboxyl acid, polyisocyanates and the titanic acid ester.
Described bisphenol A type epoxy resin specifically can be W-95 Resins, epoxy, F-44 Resins, epoxy or TDE-85 Resins, epoxy etc.Described aminoepoxy resin specifically can be the heatproof aminoepoxy resin, as VE-3240 Resins, epoxy.Described paracril specifically can be solid nitrile rubber, liquid acrylonitrile butadiene rubber, nbr carboxyl terminal, hydroxy'terminated butadiene nitrile rubber etc.Described phthalic ester specifically can be dibutyl phthalate.
In the described component first, the mass ratio of Resins, epoxy, thinner, softening agent, toughner and coupling agent can be 100: (10-50): (6-40): (10-50): (1-3).In the described component first, the mass ratio of Resins, epoxy, thinner, softening agent, toughner and coupling agent specifically can be 100: 16: 20: 15: 2.
In the described component second, the mass ratio of modified polyamide resin, modified fatty amine and Amino Terminated polyether(ATPE) can be (50-60): (20-50): (30-50).In the described component second, the mass ratio of modified polyamide resin, modified fatty amine and Amino Terminated polyether(ATPE) specifically can be 55: 35: 40.
Described structure glue also can comprise quartz sand.The ratio of the quality sum of described component first and component second and the quality of described quartz sand can be 1: (1.0-2.5).The ratio of the quality sum of described component first and component second and the quality of described quartz sand specifically can be 1: 1.3.
The mass ratio of described component first and described component second specifically can be 4: 1.
During low temperature,, reduce solidification value, also can comprise curing catalyst in the described component first, as DMP230 for improving the curing speed of structure glue.The quality proportioning of described component first and described curing catalyst can be 100: (1-5).
Described component first also can only be made up of Resins, epoxy, thinner, softening agent, toughner and coupling agent; Described component first also can only be made up of Resins, epoxy, thinner, softening agent, toughner, coupling agent and quartz sand; Described component first also can only be made up of Resins, epoxy, thinner, softening agent, toughner, coupling agent and curing catalyst; Described component first also can only be made up of Resins, epoxy, thinner, softening agent, toughner, coupling agent, quartz sand and curing catalyst.Described component second also can only be made up of modified polyamide resin, modified fatty amine and Amino Terminated polyether(ATPE); Described component second also can only be made up of modified polyamide resin, modified fatty amine, Amino Terminated polyether(ATPE) and quartz sand.Described structure glue can only be made up of component first and component second, also can be made up of component first, component second and quartz sand, also can add other assistant agent.
The using method of structure glue of the present invention is as follows:
Before the use, bonding component surface (metalwork or concrete adhesive surface) must be cleaned out, and reaches the technology for applying standard.Earlier first, second two components are stirred in this bucket respectively, be mixed in proportion, stir, spread upon on the adherend spare, guarantee to paste position glue amount abundance, overflow slightly with glue and be advisable, used glue must now be joined, and uses up at every turn.Keep adherend spare to fit tightly 24 hours, permanent curing, 72 hours force-applied uses and tests detection.Winter construction, glue want suitable preheating (about 25 ℃) to be advisable, and prolong because of temperature descends set time.Pei Zhi surplus glue does not seal preservation in this bucket.
The performance index of structure glue of the present invention see Table 1.
The performance index of table 1 structure glue of the present invention
Structure glue provided by the invention has following advantage:
(1) good adhesive property, stress distribution is even, the slip resistance height, mechanical tenacity is good, can bear the bonding under the multiple situation such as metallic substance and metallic substance, metallic substance and non-metallic material and concrete surface in the engineering structure effectively, sticking anchor reinforcing bar, structure steel bonding, the perfusion reinforcement of outer Baogang in the crack member grouting sealing in the solution construction work, the concrete are had good result;
(2) have haftplatte and do not trickle, the characteristics that the bar planting withdrawal resistance is big, nuisance is limited the quantity of far below national technical indicator;
(3) have the characteristics of superpower weather resistance, easy construction and intensity stabilization;
(4) structure glue has the good penetration ability to cement, and is superpower with the viscosifying power of concrete.
Structure glue provided by the invention has very strong application and promotional value.
Embodiment
Following embodiment is convenient to understand better the present invention, but does not limit the present invention.Experimental technique among the following embodiment if no special instructions, is ordinary method.Used test materials among the following embodiment if no special instructions, is routine biochemistry reagent shop and buys and to obtain.
The preparation of embodiment 1, structure glue and performance measurement
One, the preparation of structure glue
Form by component first (white), component second (black) with as the quartz sand of filler.
1, the preparation of component first
The component first is made up of Resins, epoxy, thinner, softening agent, toughner and coupling agent.Resins, epoxy: thinner: softening agent: toughner: coupling agent (mass ratio)=100: 16: 20: 15: 2.
Resins, epoxy: mass ratio is 1: 2 heatproof aminoepoxy resin and a bisphenol A epoxide resin;
Heatproof aminoepoxy resin: available from the VE-3240 Resins, epoxy of Wuxi resin processing plant;
Bisphenol A epoxide resin: available from the TDE-85 Resins, epoxy of Wuxi resin processing plant.
Thinner (butylglycidyl ether): model: 501, available from Wuxi resin processing plant.
Softening agent (phthalic ester): dibutyl phthalate, be called for short DBP, model: yh-lbd-2 is available from Wuxi resin processing plant.
Toughner (thiorubber): model: JLY-121, available from Wuxi resin processing plant.
Coupling agent (organosilane): model: KH-560 (γ-Racemic glycidol oxidation propyl trimethoxy silicane) is available from Wuxi resin processing plant.
2, the preparation of component second
Component second is made up of modified polyamide resin, modified fatty amine and Amino Terminated polyether(ATPE).Polyamide resin: modified fatty amine: Amino Terminated polyether(ATPE) (mass ratio)=55: 35: 40.
The modified polyamide resin: available from Jieshijie Novel Materials Co., Ltd, Shanghai, model: PA, the transparent thick liquid of yellowish brown, the amine value: 400 ± 200, viscosity (40 ℃): 500～2500mPaS.
Modified fatty amine: available from Henan Province's natural selection Industrial Co., Ltd., model: tab-800, the low viscosity transparent liquid, the amine value: 800 ± 50, viscosity (25 ℃): 400-500mPaS.
Amino Terminated polyether(ATPE): available from Yantai people's livelihood chemical company limited, model: T403, colourless or light yellow transparent liquid, viscosity (25 ℃): 9mPaS.
3, the preparation of structure glue
A: filler quartz sand is added in the component first (mass ratio of component first and quartz sand is 1: 1.3).
B: filler quartz sand is added in the component second (mass ratio of component second and quartz sand is 1: 1.3).
With mass ratio is that 4: 1 A and B packs respectively.
Two, the performance of structure glue
Before the use, bonding component surface (metalwork or concrete adhesive surface) must be cleaned out, and reaches the technology for applying standard.Earlier first, second two components are stirred in this bucket respectively, be mixed in proportion, stir, spread upon on the adherend spare, guarantee to paste position glue amount abundance, overflow slightly with glue and be advisable, used glue must now be joined, and uses up at every turn.Keep adherend spare to fit tightly 24 hours, permanent curing can carry out Performance Detection in 72 hours.
Performance project comprises: colloidal property (tensile strength, tension Young's modulus, elongation, bending strength, ultimate compression strength), viscosifying power (steel-steel stretching slip resistance standard value, the inhomogeneous pull strength of steel-steel, the bonding tensile strength of steel-steel, with the concrete cohesive strength of just drawing), aging resistance, non-volatile content (solids content) and freeze-thaw resistance property.
Detected result sees Table 2.
The performance measurement result of table 2 structure glue
The preparation of embodiment 2, structure glue and performance measurement
One, the preparation of structure glue
Form by component first (white), component second (black) with as the quartz sand of filler.
1, the preparation of component first
The component first is made up of Resins, epoxy, thinner, softening agent, toughner and coupling agent.Resins, epoxy: thinner: softening agent: toughner: coupling agent (mass ratio)=100: 10: 6: 10: 1.
Resins, epoxy (bisphenol A epoxide resin): TDE-85 Resins, epoxy, available from Wuxi resin processing plant.
Thinner (propenyl glycidyl ether): the trade mark: 500, available from Wuxi resin processing plant.
Softening agent (phosphoric acid ester): triphenylphosphate, available from Wuxi resin processing plant.
Toughner (paracril): code name: BNR, available from Wuxi resin processing plant.
Coupling agent (organic carboxyl acid): acetic acid, available from Wuxi resin processing plant.
2, the preparation of component second
Component second is made up of modified polyamide resin, modified fatty amine and Amino Terminated polyether(ATPE).Polyamide resin: modified fatty amine: Amino Terminated polyether(ATPE) (mass ratio)=50: 20: 30.
The modified polyamide resin: available from Jieshijie Novel Materials Co., Ltd, Shanghai, model: PA, the transparent thick liquid of yellowish brown, the amine value: 400 ± 200, viscosity (40 ℃): 500～2500mPaS.
Modified fatty amine: available from Henan Province's natural selection Industrial Co., Ltd., model: tab-800, the low viscosity transparent liquid, the amine value: 800 ± 50, viscosity (25 ℃): 400-500mPaS.
Amino Terminated polyether(ATPE): available from Yantai people's livelihood chemical company limited, model: T403, colourless or light yellow transparent liquid, viscosity (25 ℃): 9mPaS.
3, the preparation of structure glue
A: filler quartz sand is added in the component first (mass ratio of component first and quartz sand is 1: 1).
B: filler quartz sand is added in the component second (mass ratio of component second and quartz sand is 1: 1).
With mass ratio is that 100: 15 A and B packs respectively.
Two, the performance of structure glue
Method is with embodiment 1.
Detected result shows that every performance of structure glue is higher than the standard index of A level glue.
The preparation of embodiment 3, structure glue and performance measurement
One, the preparation of structure glue
Form by component first (white), component second (black) with as the quartz sand of filler.
1, the preparation of component first
The component first is made up of Resins, epoxy, thinner, softening agent, toughner and coupling agent.Resins, epoxy: thinner: softening agent: toughner: coupling agent (mass ratio)=100: 50: 40: 50: 3.
Resins, epoxy (heatproof aminoepoxy resin): model: VE-3240, available from Wuxi resin processing plant.
Thinner (phenyl glycidyl ether): the trade mark: 690, available from Wuxi resin processing plant.
Softening agent (sebate): dioctyl sebacate (DOS), available from Wuxi resin processing plant.
Toughner (thiorubber): model: JLY-121, available from Wuxi resin processing plant.
Coupling agent (polyisocyanates): polymeric polyisocyanate, the trade mark: JQ-1 is available from Wuxi resin processing plant.
2, the preparation of component second
Component second is made up of modified polyamide resin, modified fatty amine and Amino Terminated polyether(ATPE).Polyamide resin: modified fatty amine: Amino Terminated polyether(ATPE) (mass ratio)=60: 50: 50.
The modified polyamide resin: available from Jieshijie Novel Materials Co., Ltd, Shanghai, model: PA, the transparent thick liquid of yellowish brown, the amine value: 400 ± 200, viscosity (40 ℃): 500～2500mPaS.
Modified fatty amine: available from Henan Province's natural selection Industrial Co., Ltd., model: tab-800, the low viscosity transparent liquid, the amine value: 800 ± 50, viscosity (25 ℃): 400-500mPaS.
Amino Terminated polyether(ATPE): available from Yantai people's livelihood chemical company limited, model: T403, colourless or light yellow transparent liquid, viscosity (25 ℃): 9mPaS.
3, the preparation of structure glue
A: filler quartz sand is added in the component first (mass ratio of component first and quartz sand is 1: 2.5).
B: filler quartz sand is added in the component second (mass ratio of component second and quartz sand is 1: 2.5).
With mass ratio is that 100: 65 A and B packs respectively.
Two, the performance of structure glue
Method is with embodiment 1.
Detected result shows that every performance of structure glue is higher than the standard index of A level glue.
The preparation of embodiment 4, structure glue and performance measurement
One, the preparation of structure glue
Form by component first (white), component second (black) with as the quartz sand of filler.
1, the preparation of component first
The component first is made up of Resins, epoxy, thinner, softening agent, toughner and coupling agent.Resins, epoxy: thinner: softening agent: toughner: coupling agent: curing catalyst (mass ratio)=100: 16: 19: 15: 2: 3.
Resins, epoxy (phenolic aldehyde Resins, epoxy): model: F-44, available from Wuxi resin processing plant.
Thinner (butylglycidyl ether): model: 501, available from Wuxi resin processing plant.
Softening agent (phthalic ester): dibutyl phthalate, be called for short DBP, model: yh-lbd-2 is available from Wuxi resin processing plant.
Toughner (paracril): available from Wuxi resin processing plant.
Coupling agent (titanic acid ester): tetrabutyl titanate, available from Wuxi resin processing plant.
Curing catalyst: model: DMP230 is available from Wuxi resin processing plant.
2, the preparation of component second
Component second is made up of modified polyamide resin, modified fatty amine and Amino Terminated polyether(ATPE).Polyamide resin: modified fatty amine: Amino Terminated polyether(ATPE) (mass ratio)=55: 35: 40.
The modified polyamide resin: available from Jieshijie Novel Materials Co., Ltd, Shanghai, model: PA, the transparent thick liquid of yellowish brown, the amine value: 400 ± 200, viscosity (40 ℃): 500～2500mPaS.
Modified fatty amine: available from Henan Province's natural selection Industrial Co., Ltd., model: tab-800, the low viscosity transparent liquid, the amine value: 800 ± 50, viscosity (25 ℃): 400-500mPaS.
Amino Terminated polyether(ATPE): available from Yantai people's livelihood chemical company limited, model: T403, colourless or light yellow transparent liquid, viscosity (25 ℃): 9mPaS.
3, the preparation of structure glue
A: filler quartz sand is added in the component first (mass ratio of component first and quartz sand is 1: 1.3).
B: filler quartz sand is added in the component second (mass ratio of component second and quartz sand is 1: 1.3).
With mass ratio is that 4: 1 A and B packs respectively.
Two, the performance of structure glue
Method is with embodiment 1.
Detected result shows that every performance of structure glue is higher than the standard index of A level glue.
Claims (10)
1. a structure glue comprises that the quality proportioning is 100: component first (15-65) and component second;
Described component first comprises: Resins, epoxy, thinner, softening agent, toughner and coupling agent; Described component second comprises: modified polyamide resin, modified fatty amine and Amino Terminated polyether(ATPE);
Described Resins, epoxy is at least a in bisphenol A type epoxy resin, phenolic aldehyde Resins, epoxy, the aminoepoxy resin; Described thinner is at least a in propenyl glycidyl ether, butylglycidyl ether and the phenyl glycidyl ether; Described softening agent is at least a in phthalic ester, phosphoric acid ester and two acid esters; Described toughner is at least a in thiorubber and the paracril; Described coupling agent is at least a in organosilane, organic carboxyl acid, polyisocyanates and the titanic acid ester.
2. structure glue as claimed in claim 1 is characterized in that: in the described component first, the mass ratio of Resins, epoxy, thinner, softening agent, toughner and coupling agent is 100: (10-50): (6-40): (10-50): (1-3).
3. structure glue as claimed in claim 2 is characterized in that: in the described component first, the mass ratio of Resins, epoxy, thinner, softening agent, toughner and coupling agent is 100: 16: 20: 15: 2.
4. as arbitrary described structure glue in the claim 1 to 3, it is characterized in that: in the described component second, the mass ratio of modified polyamide resin, modified fatty amine and Amino Terminated polyether(ATPE) is (50-60): (20-50): (30-50).
5. structure glue as claimed in claim 4 is characterized in that: in the described component second, the mass ratio of modified polyamide resin, modified fatty amine and Amino Terminated polyether(ATPE) is 55: 35: 40.
6. as arbitrary described structure glue in the claim 1 to 5, it is characterized in that: described structure glue also comprises quartz sand.
7. structure glue as claimed in claim 6 is characterized in that: the ratio of the quality sum of described component first and component second and the quality of described quartz sand is 1: (1.0-2.5).
8. structure glue as claimed in claim 7 is characterized in that: the ratio of the quality sum of described component first and component second and the quality of described quartz sand is 1: 1.3.
9. as arbitrary described structure glue in the claim 1 to 8, it is characterized in that: the mass ratio of described component first and described component second is 4: 1.
10. as arbitrary described structure glue in the claim 1 to 9, it is characterized in that: also comprise curing catalyst in the described component first.
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| CN 200910086614 CN101921566B (en) | 2009-06-12 | 2009-06-12 | Structural adhesive for steel bonding |
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| CN 200910086614 CN101921566B (en) | 2009-06-12 | 2009-06-12 | Structural adhesive for steel bonding |
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| CN101921566B CN101921566B (en) | 2013-02-06 |
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| CN 200910086614 Expired - Fee Related CN101921566B (en) | 2009-06-12 | 2009-06-12 | Structural adhesive for steel bonding |
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