CN102391815B - Anticorrosive repair agent - Google Patents
Anticorrosive repair agent Download PDFInfo
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- CN102391815B CN102391815B CN 201110293074 CN201110293074A CN102391815B CN 102391815 B CN102391815 B CN 102391815B CN 201110293074 CN201110293074 CN 201110293074 CN 201110293074 A CN201110293074 A CN 201110293074A CN 102391815 B CN102391815 B CN 102391815B
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Abstract
The invention provides an anticorrosive repair agent and a preparation method thereof. The repair agent is epoxy modified normal temperature cured double-component reaction adhesive prepared from high-quality anticorrosive materials. The cured adhesive layer is black, the adhesive strength of the repair agent reaches 47MPa, and the using temperature of the repair agent is 60 to 90 DEG C. The repair agent is mainly used for repairing parts working in corrosive media such as an acid-base container and a glass enamel reaction kettle and coating a protective layer (mainly resisting inorganic acid).
Description
Technical field
The present invention relates to a kind of corrosion-resistant healant, two component response type tackiness agent that especially a kind of epoxide modified normal temperature cured type is made into the high-quality corrosion resistant material.
Background technology
Surface Engineering is paid much attention to day by day as the important means of maintenance.As Surface Engineering subject important component part n9 sufacing, the surface recovery technique comprises that platings, brush plating, thermospray, bonding gluing are coated with etc., these restorative procedures replenish mutually, become the means emergency schedule of maintenance of equipment necessity, repair scrapped parts, old part is come back to life, and for enterprise retrieves the tremendous economic loss, maintenance of equipment has become the organic component of productivity.
The surface cohering technology in recent years, has been brought into play significant role and has been obtained good social benefit and huge economic benefit as representing one of surface technology in the maintenance of equipment field.
The surface cohering technology is compared with built-up welding, thermospray, brush plating, its technology is easy, do not need Special Equipment, need not to consume heat energy and electric energy, only need the face of repairing watch of waiting that it is good that the healant for preparing is coated on cleaning is got final product, solidify the back as hard as the metal, can carry out various mechanical workouts, satisfy that part is wear-resisting, anti-corrosion, maintenance needs such as resizing, defective are filled up, sealing and plugging.General ambient temperature curable does not have heat affected zone and thermal distortion to part, but and site work, reduce stop time.Its time and labour saving, save energy and substantial contribution are a kind of quick and inexpensive repairing techniques, are the effective means of maintenance of equipment, will develop into important one of the surface technology of representing.
Metal repairing agent is the gordian technique of surface cohering and splicing in the maintenance of equipment; it is by high molecular polymer and metal-powder; ceramic powder and fibrous pair of component (or many components) clay shape matrix material; it is wear-resistant to be widely used in part; corrosion-resistant reparation is with pre-supercoat and be used for repairing the various defectives of part (as crackle; scratch; dimension overproof; blow hole; sand holes) and sealing and plugging etc.; its technology is simple and easy to do; only need two components are mixed in proportion; be coated on through rust cleaning; the surface of oil removing; solidifying the back finishing gets final product; be a kind of saving of labor; save time; economical; durable; flexibly; convenient; desirable novel patching material is one of matrix material at present with fastest developing speed.
This patching material abroad just begins one's study from the fifties end, U.S. Belzona high polymer alloy healant for example, Germany Diamant product is also world-famous, can be used to repair various materials, can be used for repairing metal, rubber, pottery etc., can select the healant of the different trades mark according to conditions such as different use temperatures, pressure, media for use.The MEcATeC product of Switzerland Castolin company also has tens kinds, has obtained using widely in the maintenance of equipment of multiple industries such as casting, cement, sugaring, railway, electronics.In addition, fill up agent, wear-resisting glue though more domestic units develop some metals, performance can't satisfy the service requirements of maintenance of equipment.The patching material of above-mentioned external development, though performance is higher than home products, China's the eighties was just once used German Diamant product to tank track kiss-coating plate, but intensity, heat resistance still are difficult to reach the requirement of the equipment of repairing performance requriements harshnesses such as war industry equipment or intensity, and the price of import healant and costliness thereof, consume a large amount of foreign exchanges, cause enterprise aspect maintenance of equipment, to consume a huge sum of money.
The serial corrosion-resistant healant bonding strength height of the present invention's development, insulating property are good, wear-resisting, corrosion-resistant, oil resistant, water-fast, anti-valency matter performance are good, are applicable to the manufacturing of industry products such as Aeronautics and Astronautics, military project, machinery, shipbuilding, electrical equipment, automobile, chemical industry, agricultural machinery and the maintenance of equipment.Be mainly used in the wearing and tearing of hydraulic ram, machine tool guideway and the reparation of pulling, also can be used for filling up of position wearing and tearing such as body gear-box axle bearing hole bonding and bleb, sand holes with reparation, the broken pieces structure of pulling.
Summary of the invention
The composition of healant can be divided into sizing, solidifying agent, toughner, particular fillers, thinner, coupling agent, anti-aging agent, thixotropic agent, defoamer, promotor etc.Sizing is selected Resins, epoxy, resol, unsaturated polyester, urethane, silicone resin etc. for use, and filler can be divided into metal-powder (as iron powder, aluminium powder, copper powder, lead powder etc.), ceramic powder (WC, SiC, A1
2O
3, BC, Cr
2O
3, SiO
2, quartz sand etc.) and graphite, MoS
2, corrosion resistant materials such as polytetrafluoroethylene.Two two component healants, two components are mixed use by a certain percentage during coating, generally are made up of sizing, solidifying agent and filler (abbreviation particular fillers) and subsidiary material with certain characteristic (wear-resisting, against corrosion, insulation, conduction etc.).
1, sizing
Or the title base-material, as thermosetting resin, synthetic rubber etc.Thermosetting resin such as epoxy, phenolic aldehyde, urethane, unsaturated polyester, acrylic acid ester etc. have the three-dimensional crosslinking structure, and are heat-resisting, water-fast, resistance to medium is good, use more in healant.
The effect of sizing is the various materials in the healant to be contained and stick to matrix surface securely to form coating, therefore, and for the sizing of adhesive coating layer should have following performance:
(1) coated matrix and filler there is higher binding strength.
(2) cured article should have higher physical strength and good heatproof, oil resistant, chemically-resistant and ageing resistance, and its Young's modulus and stability want high.
(3) the cured article shrinking percentage is little.
2, solidifying agent
The effect of solidifying agent is and sizing generation chemical reaction, forms netted space polymer, and the filler envelope in the body of dictyosome, is formed the crosslinked combination of three-dimensional.
Requirement with solidifying agent is generally to healant:
(1) cured article hardness height, good toughness, wear resistance is good, and solidity to corrosion, medium-resistance are good etc.
(2) preferably can self-vulcanizing, set time is short.
Healant of the present invention is generally amine curing agent with solidifying agent, adopts aminated compounds as solidifying agent, makes healant that higher degree of cure and outstanding resistance toheat be arranged.
3, particular fillers
Particular fillers plays important effect in healant, as wear-resistant corrosion-resistant, anti-corrosion, insulation, conduction etc.Therefore the selection of particular fillers is most important to the performance of coating, needs and the chemical terms consideration from maintenance, filler is required be:
(1) filler should be neutral or weakly alkaline, does not contain in conjunction with water, and is good with the sizing affinity, and liquid is not had adsorptivity or adsorptivity is seldom arranged.
(2) filler absorption impurity enough thermotolerances and certain purity will be arranged, if can cause the resin degraded.
(3) require particle or grain density little, scattered, sedimentation is little in resin.
The healant filler comprises powder or the fiber with a certain size; as hard particles such as metal-powder, oxide compound, carbide, nitride even diamond, boride or fiber, graphite, molybdenumdisulphide, polytetrafluoroethylene etc., according to the wear-resistant filler of the optional hard of different coatings.
4, subsidiary material
Subsidiary material comprise toughner, plasticity, thinner, curing catalyst, coupling agent, defoamer, anti-aging agent etc., its effect be improve coating performance such as toughness, resistance to deterioration etc. and reduce glue viscosity, improve coating quality etc.
According to above-mentioned four kinds of component roles, according to different working conditionss and performance requriements, through testing preferred suitable material and proportioning, the healant of preparation various requirement.
In addition, the present invention also provides the production method of above-mentioned corrosion-resistant healant.
The invention provides a kind of corrosion-resistant healant, mixed by A component and B component, wherein the A component is Resins, epoxy E44, Resins, epoxy E51, dibutylester, norbide, aluminium sesquioxide, Stainless Steel Powder and white carbon black; The B component is KH550 silane coupling agent, DMP-30(2,4,6-three (dimethylamino methyl) phenol) and white carbon black; The weight proportion of A component and B component is 4:1 ~ 6:1, is preferably 5:1.
The prescription that adopts in the concrete production process is as follows: the A component is Resins, epoxy E44 8980g, Resins, epoxy E51 706g, dibutylester 3370g, norbide 1275g, aluminium sesquioxide 262.5g, Stainless Steel Powder 742.5g and white carbon black 69g; The B component is KH550 silane coupling agent 63g, DMP-30(2,4,6-three (dimethylamino methyl) phenol) 950g, white carbon black 150g; The use of healant is 4:1 ~ 6:1 with above-mentioned A, B component by weight ratio, and the ratio that is preferably 5:1 takes by weighing, and mixes.
Corrosion-resistant healant by the said ratio preparation; the two component response type tackiness agent that are made into the high-quality corrosion resistant material for epoxide modified normal temperature cured type; the cured glue layer is black; bonding strength reaches more than the 47MPa; 60 ~ 90 ℃ of use temperatures; the part that is mainly used in corrosive medium, working such as soda acid container, the reparation of glass enamel reactor and give stopping off (main inorganic acid resistance).
The preparation method of corrosion-resistant healant of the present invention comprises the steps:
1. use area of computer aided coating formula optimization design, obtain the prescription of above-mentioned healant;
At first starting material have been carried out preferably, by a large amount of simultaneous tests, and then the factor such as filling kind, filling adding amount, filler granularity, solidifying agent, toughner kind and the add-on that influence coating abrasion performance, hardness, intensity carried out single factor experiment, determined the optimum range of each composition, with the design of computer assistant coating formulation optimization, obtain optimum formula at last.
The process that the area of computer aided coating is optimized is as follows: the design of variable factor level---formula test------prescription optimization---optimization formula of setting up mathematical model.
By the result as can be known, the corrosion-resistant healant coating formula performance of computer aided optimum obviously improves, and compares with the prescription of general extremum method optimization, improves 20% approximately.
2. starting material are anticipated;
1) starting material in bulk and that make moist is dried down at 100 ℃;
2) starting material to thickness add heat gain flowability, but temperature can not surpass 60 ℃, in case rotten;
3) to coarse grained pulvis starting material, grind and sieve and get fine particle materials;
3.A, the preparation of B component
Take by weighing A component starting material by prescription, Resins, epoxy E44, Resins, epoxy E51 and dibutylester are placed duplicate rows star dynamic mixing still, be heated to 90 ℃, stir 30min, add molybdenumdisulphide, norbide, Stainless Steel Powder and white carbon black, high-speed stirring 30min is cooled to 40 ℃ then to mixing, vacuumize and stirring at low speed 20min, it is standby to obtain the A component;
Take by weighing B component starting material by prescription, KH550 silane coupling agent and DMP-30 are placed duplicate rows star dynamic mixing still, mix and stir 30min, add white carbon black and continue to stir 30min to mixing, vacuumize then and stirring at low speed 20min, it is standby to obtain the B component;
4. the preparation of healant
Be 4:1 ~ 6:1 by weight ratio with above-mentioned A, B component, the ratio of preferred 5:1 takes by weighing, stir and to use after trembling evenly, the glue for preparing is about 20 ℃ of room temperatures, be preferably in 30 ~ 40min and use up, influence in order to avoid viscosity increases tackiness agent with by the infiltration of sticking part with stickingly be coated with effect, join the glue amount and how much decide matching while using on correction of the defect is big or small.
Under the concrete preparation steps:
1), treats and repair the position, with acetone (analytical pure) degreasing, oil removing, decontamination purification (treating the processing of repairing the position is that sticking being coated with repaired key of success);
2), treat the face of repairing watch and carry out roughening treatment with file, hand operated grinding wheel, sand paper, rotation file etc.Repairing pit should remove hole end oxide compound, can see fresh metal level for well, notes pit and suitably transition of periphery, prevents that corrosive medium from infiltrating the bottom etched the matrix and influencing glue-line and high base strength along periphery.Surface applications acetone after the alligatoring purifies again and dries up (because the acetone volatilization is very fast, easily forming moisture film in the metallic surface to bonding unfavorable) with calorifier.If in the winter time or wet environment, preferably treating has a shave takes the measure of heating, and feel is warm to get final product;
3), when the sealing of the pipeline valve that is used for working under acid, the alkaline media condition, pressurized vessel, leak stopping, should be earlier with glue rod or the emergent leak-stopping of soap, then this glue is applied on the glasscloth and twines, or mix with glass fibre and firmly kneading with this glue, treat to fill in leakage position when clay has hard sense, and then gluing is reinforced;
4), be coated with adhesive curing.Normal conditions can be in spontaneous curing more than 15 ℃, can come into operation in 24 hours.If be heating and curing with thermals source such as hot-plate, infrared lamps, glue-line intensity can greatly improve (be heating and curing and should carry out after 1 hour at gluing, suggestion is heated to 50-60 ℃ of insulation 1 ~ 2 hour, then slowly cooling 30 ℃ of heating 1 hour again);
5), being coated with available file after the adhesive curing, sand paper or hand operated grinding wheel repairs.
Precaution
If temperature is low, the single component viscosity of glue is bigger, mixes after can with thermals source such as calorifier, tungsten-iodine lamps it being preheating to 30 ~ 40 ℃ earlier before mixing again.Avoid temperature to be lower than 5 ℃, relative air humidity is greater than joining the glue applying glue under 90% the environment.
Storing the quality guaranteed period is 2 years.
Beneficial technical effects of the present invention is:
1, coated matrix there is higher binding strength; 2, cured article should have higher physical strength and good resistance to chemical attack and ageing resistance.
Description of drawings
Fig. 1 is tension specimen;
Fig. 2 is for shearing sample;
Fig. 3 is the resistance to compression sample;
Fig. 4 is the wearing test sample.
Embodiment
Be further described in detail below in conjunction with the present invention of embodiment 1-3, but the present invention never is confined to these embodiment.
Embodiment 1-3
The A component is Resins, epoxy E44 8980g, Resins, epoxy E51 706g, dibutylester 3370g, norbide 1275g, aluminium sesquioxide 262.5g, Stainless Steel Powder 742.5g and white carbon black 69g; The B component is KH550 silane coupling agent 63g, DMP-30(2,4,6-three (dimethylamino methyl) phenol) 950g, white carbon black 150g; The use of healant for the ratio of 4:1 ~ 6:1 takes by weighing, mixes above-mentioned A, B component by weight ratio.The concrete proportioning of each embodiment is as shown in table 1.
Table 1
| |
1 | 2 | 3 |
| The trade mark | TCY415 | TCY416 | TCY417 |
| A, B ratio | 4:1 | 5:1 | 6:1 |
Tensile strength, tensile shear strength, compressive strength, hardness, wear resistance, 7 performance index of erosion resistance and temperature tolerance are tested by the Ministry of Chemical Industry and national standard, and testing method and test result are as follows:
3.1 tensile strength
(1) testing method:
1, sample (specimen shape, size are as shown in Figure 1)
Attention: the splicing face of sample should be the plane, and vertical with the main shaft of sample; Adhesively bonded joint should use the tackiness agent of capacity, and makes the glue of slightly having a surplus around the joint, avoids occurring starved joint, and excessive glue needn't be removed usually.
2, testing installation:
Puller system should make the sample failure load at 10%～90% of pulling force full range, and the measuring error of puller system is not more than 1%, and puller system should be able to increase load in constant speed ground.
3, test conditions:
When not having particular requirement, the test conditions of recommending by GB2918 carries out, and namely temperature is 23 ± 2 ℃, relative humidity (50 ± 5) %.
4, test-results:
(1) tensile strength is calculated by formula (1):
Tensile strength (MPa);
Maximum load (N) when P one sample destroys;
A one bond area (mm2).
(2) unless regulation is arranged in the adhesive products standard in addition, tensile strength values is in five efficiency test results' arithmetical av.
(2) test result
Tensile strength test the results are shown in Table 2.
Table 2 tensile strength test result
3.2 tensile shear strength
Testing method:
1, sample
On the specimen shape to the greatest extent cun as shown in Figure 2.
2, testing installation
(1) trier of Shi Yonging should make sample destruction load the full scale load 15%～85% between, the power value indication error of trier should be greater than 1%, trier should guarantee that the translational speed of specimen holder keeps stablizing among 5 ± 1mm/1min;
(2) glueing joint the tinsel surface of usefulness should be smooth, the bending that do not have, lifts up song, distortion such as crooked.Tinsel should not have burr, and the edge keeps the right angle;
(3) the preparation sample all should use anchor clamps, to guarantee that sample correctly overlaps and accurately to locate.
3, test conditions
Unless otherwise prescribed, the storage period of sample and testing circumstance should meet the following requirements:
(1) shortest time to test after sample prepares is 16h, and maximum duration is 1 month:
(2) test should be carried out in temperature is 23 ± 2 ℃ environment.Arbitration test or should be that 234 ± 2 ℃, relative humidity are to carry out in 45%～55% the environment in temperature to the tackiness agent of temperature, humidity sensitive;
(3) to the test of temperature requirement is only arranged, sample should not be less than half an hour in the following storage period of test temperature before the test; To the test of temperature, humidity requirement is arranged, the storage period of sample under testing circumstance generally should not be less than 16h before the test.
4, test-results
(1) tensile shear strength calculates by formula (2):
In the formula
Tensile shear strength (MPa);
Maximum load (N) when P--destroys;
B--sample bonding plane width (mm);
L--sample bonding plane length (mm).
(2) test-results is represented with arithmetical av, maximum, the Schwellenwert of shearing resistance, gets four position effective digitals.
(2) test result
The tensile shear strength test-results sees Table 3.
Table 3 tensile shear strength test-results
3.3 ultimate compression strength
(1) testing method
1, sample
(1) glue Chinese catalpa shape, size are as shown in the figure
(2) upper and lower end face of glue post should be the plane, and vertical with the main shaft of glue post.
2, testing installation
Trier should make the sample failure load at 10%～90% of full range, and the measuring error of trier is not more than 1%.
3, test conditions
Trier pressure head translational speed is ± 0.2mm/min.
4, test-results
(1) ultimate compression strength is calculated by formula (3);
B=P／A
B one pressure resistance degree (MPa) in the formula;
Maximum load (N) when P one destroys;
A one glue post cross-sectional area (mm
2).
(2) test result
Table 4 compressive strength test result
3.4 hardness
(1) testing method:
1, sample
(1) glue-line answers thickness even, smooth surface, smooth, no bubble, has no mechanical damage and impurity etc.;
(2) bondline thickness should be not less than 3 millimeters;
(3) sample size should guarantee that each measurement point and sample Edge Distance are not less than 12 millimeters, and the distance between each measurement point is not less than 6 millimeters;
(4) every group of sample measurement counted and is no less than 5, can carry out at one or several sample.
2, testing installation
(1) this test equipment used is the xHS.D Shore durometer.
(2) hardness permission maximum deviation is ± 1 Shore durometer number.
3, test conditions
(1) during no particular requirement, sample should be placed in testing circumstance 1 hour at least before the test.
(2) pressing and reading immediately after sample contacts 15 seconds fully if regulation is wanted instantaneous reading, then contact reading in back 1 second at pressing and sample fully.
4, test-results
(1) reading that obtains on the reading scale is the Shore durometer number of measuring.
(2) every group of sample measurement counted and is no less than 5, can carry out at one or several sample, and test-results is with the arithmetical mean value representation of one group of sample.
(2) test result
Hardness test the results are shown in Table 5.
Table 5. the hardness test result
3.5 wear resistance
(1) testing method
1, sample
(1) specimen shape, size are as shown in Figure 4;
(2) matrix of samples is 45 steel, and coating and matrix bond are firm, the coatingsurface zero defect.
2, testing installation
(1) this test equipment used is SKODA-SAVIN friction wear testing machine;
(2) emery wheel is 40 Wimet, surface roughness Ra 0.03;
(3) emery wheel rotating speed: n=675r/rain.
3, test conditions
(1) before the test, specimen surface polishes;
(2) preload: p=5Kg;
(3) total revolution: N=3000r;
(4) emery wheel be coated with interlayer spray 50%K
2CrO
7The aqueous solution.
4, test-results
(1) measure the polishing scratch width B with eyepiece, tabling look-up draws corresponding wear volume, calculates its wear resistance;
(2) test-results is to be no less than the arithmetical mean value representation of three test blocks.
(2) test result
Wearing test the results are shown in Table 6
Table 6. wearing test result
3.6 erosion resistance
(1) test method
1, sample
Cast out 20 * 24 sample with plastics tubing
2, corrosive fluid
Preparation 20%, 30% hydrochloric acid soln, 20%, 30%, 50%, 70% sulphuric acid soln, 20%, 30 %, 50%, 70% sodium hydroxide solution, 10%NaCl solution and measure toluene.
3, test conditions
(soil) test is at room temperature carried out;
(2) regularly observe, all around back record observations.
(2) test-results
Anti-corrosion test the results are shown in Table 7.
Table 7. anti-corrosion test result
In 2 tables "/" be that no this item is tested
3.7 temperature tolerance
(1) testing method
1, sample
Tackiness agent evenly is coated in 45 steel matrix surfaces, bondline thickness 2mm.
2, test conditions
The sticking sample that coats is put into baking oven, progressively heat to the desired temperature of test, behind the insulation certain hour, observe the glue-line changing conditions.
(2) test result
The temperature tolerance test-results sees Table 8.
Table 8 heatproof test-results
Claims (2)
1. a corrosion-resistant healant is mixed by A component and B component, and wherein the A component is Resins, epoxy E44, Resins, epoxy E51, dibutylester, norbide, aluminium sesquioxide, Stainless Steel Powder and white carbon black; The B component is KH550 silane coupling agent, DMP-30(2,4,6-three (dimethylamino methyl) phenol) and white carbon black; The weight proportion of A component and B component is 4:1 ~ 6:1;
Wherein, the A component is Resins, epoxy E44 8980g, Resins, epoxy E51 706g, dibutylester 3370g, norbide 1275g, aluminium sesquioxide 262.5g, Stainless Steel Powder 742.5g and white carbon black 69g; The B component is KH550 silane coupling agent 63g, DMP-30(2,4,6-three (dimethylamino methyl) phenol) 950g, white carbon black 150g.
2. corrosion-resistant healant according to claim 1 is characterized in that, the weight proportion of A component and B component is preferably 5:1.
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|---|---|---|---|
| CN 201110293074 CN102391815B (en) | 2011-10-07 | 2011-10-07 | Anticorrosive repair agent |
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|---|---|---|---|
| CN 201110293074 CN102391815B (en) | 2011-10-07 | 2011-10-07 | Anticorrosive repair agent |
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| CN102391815B true CN102391815B (en) | 2013-08-07 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103170794A (en) * | 2013-03-21 | 2013-06-26 | 安徽淮河化工股份有限公司 | Method of mending damage on non-clamping sleeve portion of enamel reaction kettle |
| CN103694948B (en) * | 2013-11-18 | 2015-06-24 | 江苏国豪耐火科技有限公司 | Adhesive material with characteristics of high performance, reversibility, temperature resistance and corrosion resistance, and preparation method thereof |
| CN103865358B (en) * | 2014-03-10 | 2016-05-11 | 宁夏鸿裕机械科技有限公司 | A kind of foundry goods sand holes healant and preparation method thereof |
| US10508203B2 (en) | 2014-09-26 | 2019-12-17 | The Boeing Company | Compositions and coatings with non-chrome corrosion inhibitor particles |
| CN108686600A (en) * | 2018-05-22 | 2018-10-23 | 连云港宝联实业有限公司 | Reaction kettle |
| CN113700970A (en) * | 2021-09-01 | 2021-11-26 | 中国化学工程第三建设有限公司 | Pipeline with self-repairing liquid pipe layer |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1104231A (en) * | 1994-08-25 | 1995-06-28 | 西安科友科技实业公司 | Metal-repairing binder capable of being machined |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS6268874A (en) * | 1985-09-19 | 1987-03-28 | Toyota Motor Corp | Adhesive composition |
| CN1308409C (en) * | 2004-05-31 | 2007-04-04 | 宝山钢铁股份有限公司 | Antiwear epoxy resin adhesive |
| CN101157836B (en) * | 2007-11-08 | 2010-05-19 | 武汉市科达云石护理材料有限公司 | Red-green dry-pasting glue and preparation technique thereof |
| CN102127383B (en) * | 2010-12-24 | 2013-05-15 | 陕西科技大学 | High-temperature-resistance adhesive capable of curing at room temperature |
| CN102153978B (en) * | 2011-03-11 | 2013-07-17 | 中南林业科技大学 | Room-temperature solidification heat-resistant epoxy adhesive |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1104231A (en) * | 1994-08-25 | 1995-06-28 | 西安科友科技实业公司 | Metal-repairing binder capable of being machined |
Non-Patent Citations (1)
| Title |
|---|
| JP昭62-68874A 1987.03.28 |
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