CN105153978A - High-performance nanometer modified polymethyl methacrylate adhesive for colorful antiskid pavements - Google Patents
High-performance nanometer modified polymethyl methacrylate adhesive for colorful antiskid pavements Download PDFInfo
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- CN105153978A CN105153978A CN201510463789.9A CN201510463789A CN105153978A CN 105153978 A CN105153978 A CN 105153978A CN 201510463789 A CN201510463789 A CN 201510463789A CN 105153978 A CN105153978 A CN 105153978A
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Abstract
A disclosed high-performance nanometer modified polymethyl methacrylate adhesive for colorful antiskid pavements is prepared by uniformly mixing the following compositions in parts by weight: 100 parts of polymethyl methacrylate, 1-5 parts of a curing agent, and 3 parts of nanometer MMT (montmorillonite). The adhesive is short in solidification time, high in bonding strength, and high in weatherability and temperature toleration performance, the service life of the adhesive applied to colorful antiskid pavements can be prolonged by 2 years or more, and the cost is low.
Description
Technical field
The present invention relates to chemical tamanori field, be specifically related to the high-performance nanometer-modified polymethyl methacrylate tamanori of color anti-skid road surface.
Background technology
Color anti-skid road surface is layed in parking lot, bus special lane, bicycle capacity, Accident Area etc., stop in time in order to guide people's sight line of stopping, instruction different vehicle walks different road, alleviate congested in traffic, prompting people Dangerous Area, improve Dangerous Area road surface friction force, reduce the effects such as traffic accident incidence.
Color anti-skid road surface system most critical is that tamanori is selected, and performance has bigger difference.Mainly contain three major controls on the market at present: vinylformic acid, modified epoxy, dual-component polyurethane.
One, vinylformic acid:
Vinylformic acid is the organic compound of chemical formula C3H4O2, is the simplest unsaturated carboxylic acid, is made up of a vinyl and a carboxyl.Pure vinylformic acid is achromaticity and clarification liquid, is with characteristic irritating smell.It can dissolve each other with water, alcohol, ether and chloroform, is prepared by the propylene obtained from refinery.
Health hazard: these product have intense stimulus effect to skin, the warm and fine respiratory tract of eye.
Fire danger: these product are inflammable, tool corrodibility, strong and stimulating, human body can be caused and burn.
Vinylformic acid is applied to color anti-skid road surface, and being first because his preferably weather resistance and rapid drying performance, is secondly because relative low price.But the weakness of vinylformic acid poor adhesive force, makes it not quite satisfactory in construction technology and construction effect.First its strong impulse smell is difficult to leave, so at indoor construction, if protect insufficient, is easy to poisoning occurs, very large on surrounding enviroment impact during construction.Secondly because its sticking power is poor, so the frame mode of " sandwich " must be adopted, just can reach service requirements, normally make one deck priming paint, then sprinkle anti-skidding sand, finally do one deck cover again.Due to its one deck paint on the surface, thus create a series of more serious problem:
1. anti-skid: because surface has one deck to paint, so the danger considerably increasing driving or pedestrian's skidding when the rainy day is moist, does not only have anti-skidding effect, runs counter to desire on the contrary;
2. perviousness and sticking power: perviousness determines sticking power, acrylic system greatest problem is that the time of drying of its priming paint and finish paint is too fast, and priming paint permeability is poor, so the conjugation that result in priming paint and ground is inadequate.Add because its drying is too fast, coating is easy to embrittlement, add the lacking toughness of coating own, road surface is once generation is expanded with heat and contract with cold, be easy to depart from road surface, so we come off with often seeing the colored road surface masses of acrylic system, and polyurethane products, even all seldom there is this situation in modified epoxy;
3. coatingsurface: because its product performance determine that it must smear finish paint, like this construction in due to workmen's technology very different, cause a lot of hair of coatingsurface to roll or hairbrush smear vestige, very ugly.And have layer to paint due to its surface, under hot weather, painted surface melting, is easy to just be subject to extraneous pollution, and order is very dirty and be difficult to clean to coatingsurface.
Thus, although acryloid cement has better weathering resistance relative to epoxy resin, because it has some technical vulnerabilities being difficult to overcome, so be difficult to the repertoire and the advantage that really realize color anti-skid road surface.But, due to its relative low price, and time of drying is short, still has certain application market, is usually all applied in some and lowly requires section.
Two. modified epoxy
Epoxy resin is the organic high molecular compound containing two or more epoxide groups in general reference molecule, and except indivedual, their relative molecular mass is not high.
The advantage of epoxy resin is apparent: have good bonding strength and chemical resistance, and its bonding strength even exceedes urethane, but its shortcoming equally also clearly, and weathering resistance extreme difference, especially fears ultraviolet irradiation, poor toughness.
Main drawback:
1. crackle: namely may occur crackle soon after having constructed, especially on newly-built bituminous pavement.Mainly newly-built bituminous pavement is not yet stable for this, bituminous pavement belongs to flexible pavement, and belong to rigid structural layer after epoxy resin reaction, two kinds of structural sheet string stresses are extremely inconsistent, rigid layer when vehicle pass-through on flexible layer can rupture under external force, causes coloured coating to occur crack.Simultaneously as oil mat also may occur the slight crack of oil mat when not yet stablizing.This situation is basic on cement pavement just not to be existed, and on old bituminous pavement, effect is also slightly better.Certain mitigation can be played by adding softening agent by current part producer.
2., there is xanthochromia reaction in variable color: epoxy resin weathering resistance is not good, along with time lapse, no matter be adjusted to red or other colors when starting, all can occur flavescence phenomenon after for some time.
3. efflorescence: epoxy resin self character also has a defect to be that chalking resistance is poor, there will be powder of detached phenomenon when the time is slightly long, occurs more serious after general 2 years.
4. set time is longer: set time is relevant with temperature, summer temperature higher than when 30 degree generally more than 2 hours, temperature is lower than likely reaching 8 hours when 10 degree even more than 15 hours.
So epoxy resin is applied in color anti-skid road surface as tamanori, first modification will be carried out.Usual employing dibutyl phthalate or dioctyl phthalate (DOP), urine aldehyde melamine resin etc. improve its weathering resistance and snappiness.But, even if be through the epoxy adhesive of good modification, there is the following weakness being difficult to overcome too:
1. modified epoxy tamanori needs to adopt thinner, so still can not change Construction on Environment and the harm to workmen equally;
2. although epoxy resin is after modification, effectively overcome weathering resistance problem, but the inadequate weakness of its toughness cannot overcome all the time, because the binding ability on itself and ground is very high, lacking toughness again, so after expanding with heat and contract with cold in road surface, coating is easy to crack, after cracking, surface water will penetrate into the key coat on coating and road surface along these crackles, after certain hour, this key coat will be fallen by aqueous corrosion, finally causes being separated of coating and road surface.
Three. urethane
Urethane full name polyurethane(s) is the general designation of the macromolecular cpd containing repetition carbamate groups on main chain.It is formed by organic diisocyanate and dicarboxyl or polyol addition polymerization.
Urethane is more slightly inferior than modified epoxy in the single index of sticking power, has grown the efflorescence of meeting xanthochromia duration of service.
Modified epoxy and polyurethane adhesives all adopt individual layer tamanori construction technology, and be namely coated with one deck priming paint, the anti-skidding sand of one deck, does not need to do finish paint, effectively prevent all ill effects because finish paint produces.
But in general, current domestic colorful pavement antiskid paint tamanori performance need further raising, that is:
1) when color anti-skid road surface is laid, need close, greatly have impact on the trip of nearby residents, also can cause certain burden to traffic to periphery traffic, during laying, set time needs to shorten further;
2) color anti-skid road surface and protobitumen ground cohesive force also need further raising, binding agent will have enough cohesive strengths, not only with base material concrete or the firm bonding of pitch, also will have extraordinary cohesiveness with colored lubricating substance, not drop after being open to traffic with guarantee, without potential safety hazard;
3) temperature stability experienced after summer high temperature and the temperature cycle of cold in winter has much room for improvement, and to ensure its Long-Term Properties, weathering resistance and temperature tolerance, at present better tamanori is stablized and is only about 5 years working life.
Summary of the invention
The technical problem to be solved in the present invention is to provide the high-performance nanometer-modified polymethyl methacrylate tamanori of a kind of color anti-skid road surface, set time is short, and cohesive strength is high, and weathering resistance, temperature tolerance are strong, color anti-skid road surface can extend more than 2 years working life, and cost is low.
The present invention is achieved through the following technical solutions:
The high-performance nanometer-modified polymethyl methacrylate tamanori of color anti-skid road surface, is formed by following composition by weight Homogeneous phase mixing: polymethylmethacrylate 100 parts, solidifying agent 1-5 part, nanometer MMT3 part.
Best-of-breed technology scheme of the present invention is, is formed by following composition by weight Homogeneous phase mixing: polymethylmethacrylate 100 parts, 2 parts, solidifying agent, nanometer MMT3 part.
Polymethylmethacrylate (PMMA) is that to synthesize quality in transparent material up to now the most excellent, and price is comparatively cheap a kind of kind again.Plexiglass is the material of asepsis environment-protecting, is colourless liquid, has fragrance, boiling point 101 DEG C, and density is 0.940g/cm, can make color anti-skid road surface tamanori base mateiral, have good chemical stability and weathering resistance.Polymethylmethacrylate type binding agent is the macromolecular material of a kind of pair of component, adds another component (solidifying agent) when constructing, and makes material produce secondary crosslinking reaction fast, forms final net high-polymer structure.
The natural mineral of a nanometer MMT silicate, be the essential mineral component of bentonite ore, nanometer MMT is the silicate lamella of the surface band negative charge of a class nano thickness, relies on the earthy mineral that the electrostatic interaction of interlayer is piled up.There is very strong adsorptive power, good dispersing property, can be applicable to the additive of macromolecular material industry as nanometer polymer macromolecular material, improve shock resistance, antifatigue, dimensional stability and gas barrier property etc.Add nanometer MMT material in polymethylmethacrylate tamanori and can significantly increase its cohesive strength.
Beneficial effect of the present invention:
Polymethylmethacrylate binding agent is the macromolecular material of a kind of pair of component, adds another component (solidifying agent) when constructing in resin Composition, makes MMA monomer produce secondary crosslinking reaction fast, adds MMT material, the high-strength film of final formation.The meeting point of component of the present invention is extremely important, makes product have following major advantage:
(1) fast setting: in a hour, solidification is put to use completely; Repeatedly between coating process without the need to extra latency; Can complete within one day, obviously shorten the duration of a project, effectively save cost;
(2) bonding strength significantly strengthens: after adding nanometer MMT material, cohesive strength is between 35Mpa ~ 40Mpa, resin and former road surface and colored aggregate particle Adhesion enhancement, reduce the threshing phenomenon of color anti-skid road surface, improve the weather resistance of color anti-skid road surface.
(3) temperature stability promotes: freezing and thawing test machine frozen process experiment, only have dropped 0.65% before the more non-freeze thawing of cohesive strength after adding nanometer MMT material.
(4) Numerical Simulation Analysis method (ABAQUS software) is adopted, set up 3D color anti-skid road surface numerical analysis model, simulating vehicle traveling load and temperature variation real road work condition environment act on down for many years, different cohesive strength parameter color anti-skid road surface weather resistance carries out contrast simulation analysis, result shows: add nanometer MMT material and compare the weather resistance not adding nanometer MMT material and significantly improve, road surface occurs that the time to rupture such as crack, particle detachment obviously postpones, and can extend Road Service Life about 2 years.
Accompanying drawing explanation
Fig. 1 PMMA and the PMMA cohesive strength histogram adding 3% nanometer MMT.
Embodiment
Test adds the nanometer MMT of 3%, and the polymethylmethacrylate tamanori adding 1%, 2%, 3%, 4%, 5% solidifying agent carries out performance test.Concrete Material composition design sees the following form:
Table 1.1 pair component polymethylmethacrylate binder materials composition is designed to submeter
1) strength test results
Polymethylmethacrylate with add 3% nanometer MMT after differing materials form strength test result:
Table 1.2 polymethylmethacrylate strength test result table
Table 1.3 adds 3% nanometer MMT polymethylmethacrylate strength test result table
According to C=1.8QT/0.7
QT-tensile strength (KN)
C-cohesive strength (Mpa)
Obtain:
Table 1.3 polymethylmethacrylate cohesive strength result table
| Curing agent content (%) | 1 | 2 | 3 | 4 | 5 |
| Cohesive strength (Mpa) | 34.71 | 34.59 | 34.07 | 33.58 | 32.92 |
Table 1.4 adds 3% nanometer MMT polymethylmethacrylate cohesive strength result table
Obtained by table 1.3: polymethylmethacrylate tamanori cohesive strength is between 30Mpa ~ 35Mpa, and caking ability size increases with solidifying agent and reduces.By shown in table 1.4: add the polymethylmethacrylate cohesive strength of 3% nanometer MMT between 35Mpa ~ 40Mpa, when curing agent content is between 1% ~ 4%, cohesive strength increases along with solidifying agent and reduces, and solidifying agent is 5% time, and cohesive strength is slightly gone up.This cohesive strength decreases the threshing phenomenon of color anti-skid road surface, substantially increases the weather resistance of color anti-skid road surface.
And cohesive strength aspect, the polymethylmethacrylate tamanori cohesive strength adding obviously change of nanometer MMT material, as shown in Figure 1, as calculated, the scope of increase is between 10% ~ 12%.Digital proof, the polymethylmethacrylate tamanori partial properties adding nanometer MMT material is obviously better than the polymethylmethacrylate tamanori of non-plus nano MMT.
2) temperature stability test scheme and result
This tests the influence degree of main analog temperature to polyurethane adhesives, carry out freeze thawing simulated experiment by urethane than the tamanori that solidifying agent is 3:1, set temperature is ceiling temperature+10 DEG C, lower limit temperature-10 DEG C, cycle index 15 times, the cycle be about 4h once.After frozen process experiment terminates, strength test is carried out to experiment test specimen, is reflected the temperature stability of binding agent by the change degree of cohesive strength.
The tamanori adding 2% solidifying agent in polymethylmethacrylate and the tamanori simultaneously adding 3% nanometer MMT and 2% solidifying agent carry out frozen process experiment contrast, draw after 15-10 DEG C ~+10 DEG C freeze-thaw cycle: the cohesive strength only adding the tamanori of 2% solidifying agent after 15 freeze thawing is 34.2Mpa, 1.1% is have dropped before the more non-freeze thawing of cohesive strength, after 15 freeze thawing, the cohesive strength simultaneously adding 3% nanometer MMT and 2% solidifying agent tamanori is 38.19Mpa, have dropped 0.65% before the more non-freeze thawing of cohesive strength.The polymethylmethacrylate tamanori temperature-stable performance adding 3% nanometer MMT and 2% solidifying agent is better than only adding the tamanori of 2% solidifying agent.
3) Numerical Simulation Analysis method (ABAQUS software) is adopted, set up 3D color anti-skid road surface numerical analysis model, simulating vehicle traveling load and temperature variation real road work condition environment act on down for many years, different cohesive strength parameter color anti-skid road surface weather resistance carries out contrast simulation analysis, result shows: add nanometer MMT material and compare the weather resistance not adding nanometer MMT material and significantly improve, there is crack in road surface, the time to ruptures such as particle detachment obviously postpone, Road Service Life can be extended about 2 years, further demonstrate that the long-term pavement performance that the excellent durability of developed resin binder and nanometer MMT material bring after improving intensity and temperature stability improves.
Claims (2)
1. the high-performance nanometer-modified polymethyl methacrylate tamanori of color anti-skid road surface, is characterized in that being formed by following composition by weight Homogeneous phase mixing: polymethylmethacrylate 100 parts, solidifying agent 1-5 part, nanometer MMT3 part.
2. the high-performance nanometer-modified polymethyl methacrylate tamanori of color anti-skid road surface according to claim 1, is characterized in that being formed by following composition by weight Homogeneous phase mixing: polymethylmethacrylate 100 parts, 2 parts, solidifying agent, nanometer MMT3 part.
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| CN201510463789.9A CN105153978A (en) | 2015-07-31 | 2015-07-31 | High-performance nanometer modified polymethyl methacrylate adhesive for colorful antiskid pavements |
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| CN201510463789.9A CN105153978A (en) | 2015-07-31 | 2015-07-31 | High-performance nanometer modified polymethyl methacrylate adhesive for colorful antiskid pavements |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638211A (en) * | 2016-08-26 | 2017-05-10 | 交通运输部公路科学研究所 | Colored pavement structure and paving method therefor |
| CN106928614A (en) * | 2017-04-25 | 2017-07-07 | 安徽省沥美道路新型材料有限公司 | Colored road surface labeling and processing technology, construction technology |
| CN108398376A (en) * | 2017-12-27 | 2018-08-14 | 淮阴工学院 | A kind of color anti-skid road surface antiskid effect analog detection method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101501085A (en) * | 2006-08-25 | 2009-08-05 | 赢创罗姆有限责任公司 | Methacrylate resins for producing road markings |
| CN102134363A (en) * | 2011-04-12 | 2011-07-27 | 中国科学院合肥物质科学研究院 | Polymethylmethacrylate nanometer composite material and preparation method thereof |
| CN103254717A (en) * | 2013-05-21 | 2013-08-21 | 保定市科顺达交通设施有限公司 | PMMA (Polymethyl Methacrylate) type two-component road marking material and preparation method thereof |
| CN104449173A (en) * | 2014-12-02 | 2015-03-25 | 广西大学 | Thermoplastic-elastomer-modified polymethyl methacrylate color antiskid paint |
-
2015
- 2015-07-31 CN CN201510463789.9A patent/CN105153978A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101501085A (en) * | 2006-08-25 | 2009-08-05 | 赢创罗姆有限责任公司 | Methacrylate resins for producing road markings |
| CN102134363A (en) * | 2011-04-12 | 2011-07-27 | 中国科学院合肥物质科学研究院 | Polymethylmethacrylate nanometer composite material and preparation method thereof |
| CN103254717A (en) * | 2013-05-21 | 2013-08-21 | 保定市科顺达交通设施有限公司 | PMMA (Polymethyl Methacrylate) type two-component road marking material and preparation method thereof |
| CN104449173A (en) * | 2014-12-02 | 2015-03-25 | 广西大学 | Thermoplastic-elastomer-modified polymethyl methacrylate color antiskid paint |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638211A (en) * | 2016-08-26 | 2017-05-10 | 交通运输部公路科学研究所 | Colored pavement structure and paving method therefor |
| CN106928614A (en) * | 2017-04-25 | 2017-07-07 | 安徽省沥美道路新型材料有限公司 | Colored road surface labeling and processing technology, construction technology |
| CN106928614B (en) * | 2017-04-25 | 2019-04-09 | 安徽省沥美道路新型材料有限公司 | Colored road surface labeling and processing technology, construction technology |
| CN108398376A (en) * | 2017-12-27 | 2018-08-14 | 淮阴工学院 | A kind of color anti-skid road surface antiskid effect analog detection method |
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Application publication date: 20151216 |
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