CN106883595A - Road surface polyurethane binder and its preparation method and application - Google Patents
Road surface polyurethane binder and its preparation method and application Download PDFInfo
- Publication number
- CN106883595A CN106883595A CN201710213381.5A CN201710213381A CN106883595A CN 106883595 A CN106883595 A CN 106883595A CN 201710213381 A CN201710213381 A CN 201710213381A CN 106883595 A CN106883595 A CN 106883595A
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- polyurethane
- road surface
- polyurethane binder
- macrovoid
- concrete
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
- C08L75/08—Polyurethanes from polyethers
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B26/16—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3206—Polyhydroxy compounds aliphatic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a kind of road surface polyurethane binder and its preparation method and application.The road surface polyurethane binder is made up of polymethylene multi-phenenyl isocyanate, the PPG containing terminal hydroxyl, pentaerythrite.Specifically first PPG and pentaerythrite containing terminal hydroxyl are mixed, road surface polyurethane binder is obtained after mixture and polymethylene multi-phenenyl isocyanate mixing.Road surface polyurethane binder can completely substitute road surface asphalt, solve that the supply of pavement asphalt can not continue, constructing be present；And polyurethane binder without heating can and aggregate blending, the energy needed for having saved asphalt high temperature mix.
Description
Technical field
The invention belongs to road surface new material technology field, and in particular to a kind of road surface polyurethane binder and its preparation side
Method and application.
Background technology
Bituminous paving has become highway in China and adopts extensively because having the advantages such as road-ability is high, maintenance is convenient
Road surface form.In bituminous paving, pitch plays bonding mineral aggregate, prevents the effects such as moisture intrusion, has become road surface
The important raw and processed materials of engineering.Fast development along with highway in China bituminous paving in nearly 30 years of past, the use of asphalt
Amount is also constantly soaring.But, used as one of the product of PETROLEUM PROCESSING, the yield of asphalt will be with petroleum resources gradually
Exhausted and continuous decrease.Petroleum resources it is non-renewable determine it is that asphalt can not continue, substantial amounts of be supplied in road surface.Cause
This, angle is persistently supplied from raw material, is substituted oil in the urgent need to researching and developing new road surface binder using renewable resource and is dripped
It is blue or green.
Asphalt is a kind of complicated macromolecule organic, and substantial amounts of research is it has been shown that be applied to pavement engineering, it is deposited
The problems such as water pollution of air pollution, operational phase in construction at high temperature stage glance coal and soil pollution.Especially in recent years
Come various additives, modifying agent etc. to be widely used in asphalt modification, such as SBS modified pitch, rubber modified asphalt, emulsified asphalt
Deng, its molecular structure of these novel modified asphalts is increasingly complex, its produce pollutant kind be more difficult to, it is expected that pollution level more
It is prominent.Therefore, from road surface pollution angle is reduced, substituted in the urgent need to research and development low stain or free of contamination novel pavement binder
Asphalt.
Asphalt has that temperature sensitivity is high, easily aging etc. property defect.In low temperature, it show as high resiliency,
Inductile, low elasticity, high-ductility are shown as in high temperature；Under the factors such as oxygen, light, heat, asphaltic nature shows obvious bad
Change feature.These defects of asphalt often led to many bituminous pavings of making before not up to projected life, just went out
The destruction of the diversified forms such as high temperature rut, cold cracking, Water Damage is showed.Therefore, from the point of view of pavement destruction angle is slowed down, urgently
Need to research and develop high performance novel pavement binder to substitute asphalt.
In recent years, with the fast development of organic chemistry, artificial synthesized high molecular polymer is continued to bring out, wherein by different
The polyurethane that cyanate and hydroxy compounds are polymerized, with its good oil resistivity, toughness, wearability, resistance to ag(e)ing and viscous
The concern of the conjunction property person that causes road work.Polyurethane is also considered as possible replacing asphalt, plays bonding mineral aggregate and is made coagulation
Native making is in the candidate materials on road surface.But, road surface polyurethane binder how is prepared, how polyurethane binder is applied to
Pavement concrete is not furtherd investigate.
To sum up, sustainable, pollution-free, high-performance road surface polyurethane binder is developed, asphalt is substituted completely, to building
Energy-saving and environmental protection, long-life road engineering are significant.
The content of the invention
The technical problem of solution：It is an object of the invention to provide a kind of road surface polyurethane binder and preparation method thereof and should
With the road surface polyurethane binder can completely substitute road surface asphalt, and the supply for solving pavement asphalt can not continue, construct and deposit
The problems such as pollution；And polyurethane binder without heating can and aggregate blending, needed for having saved asphalt high temperature mix
The energy.
Technical scheme：Road surface polyurethane binder, by component A and B component in mass ratio 1：1.5~1：2 compositions, component A
It is polymethylene multi-phenenyl isocyanate, B component is by the PPG and pentaerythrite in mass ratio 95 containing terminal hydroxyl：5
Composition.
The preparation method of above-mentioned road surface polyurethane binder, comprises the following steps：
Step 1, PPG and pentaerythrite containing terminal hydroxyl are mixed, and obtain B component；
Step 2, B component and polymethylene multi-phenenyl isocyanate are mixed, and stirring obtains road surface polyurethane binder.
Further, in step 1 powdered pentaerythrite it is first levigate to particle diameter less than after 0.15mm, then with PPG
Mix.To ensure that pentaerythrite has stronger crosslinking in isocyanates and the polyurethane of PPG chemical reaction generation
Effect.Pentaerythrite is the crosslinking agent of polyurethane binder, and it ensures what different in nature acid esters and PPG chemical reaction were generated
Polyurethane has enough degrees of cross linking, plays a part of to strengthen polyurethane binder strength and stiffness.
Application of the above-mentioned road surface polyurethane binder in macrovoid polyurethane concrete.
Macrovoid polyurethane concrete, is made up of road surface polyurethane binder, stannous iso caprylate and gathering materials, and polyurethane is combined
Expect that with the mass ratio for gathering materials be 3%~6%, the quality of stannous iso caprylate is 1 ‰~the 2 ‰ of polyurethane binder.
Stannous iso caprylate is the catalyst of macrovoid polyurethane concrete, and its consumption can exist according to the requirement of hardening time
1 ‰~2 ‰ determine, when requiring that hardening time is shorter, can be using the stannous iso caprylate of higher dosage.
Further, described to gather materials be basalt aggregate, and particle diameter is 2.36~4.75mm or 4.75~9.5mm.
The preparation method of above-mentioned macrovoid polyurethane concrete, is first to add isooctyl acid sub- in the polyurethane binder of road surface
Tin, stirring, then by polyurethane binder and the mix at room temperature that gathers materials, macrovoid polyurethane concrete is obtained after shaping.
Beneficial effect：
1. polyurethane binder in road surface of the invention can completely substitute road surface asphalt, play the effect for bonding and gathering materials,
Effectively alleviate asphalt supply it is unsustainable, pollution environment the problems such as.
2. polyurethane binder in road surface of the invention greatly reduces traditional asphalt mixing with the mix for gathering materials without heating
Expect the required energy of high temperature mix.
3. macrovoid polyurethane concrete of the invention uses single particle size and gathers materials, and gathers materials and matches somebody with somebody without level, is easy to mix
Coagulate the composition design of soil and construct.
Specific embodiment
With reference to specific embodiment, the present invention is furture elucidated.It should be understood that following specific embodiments are only used for
The bright present invention rather than limitation the scope of the present invention.
Embodiment 1
Raw material used by the embodiment of the present invention are as shown in table 1.
The raw material that the macrovoid polyurethane concrete of table 1 is used
The preparation of macrovoid polyurethane concrete
Weigh 900g dryings, the clean, basalt aggregate that particle diameter is 4.75~9.5mm.By binder and aggregate quality ratio
3%th, 4%, 5%, 6% polyurethane binder consumption respectively 27g, 36g, 45g and 54g being calculated.By PPG
It is 95 with pentaerythrite mass ratio:5, component A and B component mass ratio 1：1.5, it is 27g, 36g, 45g and 54g that quality is calculated respectively
Four groups of polyurethane binders in isocyanates, polyalcohol and pentaerythrite consumption.
B component is first mixed and made into by PPG and pentaerythrite, then it is secondary with what component A isocyanates was mixed
Sequence, prepares the different polyurethane binder of four groups of quality.In four groups of polyurethane binders, 1 ‰ isooctyl acid is respectively added
Stannous, and after being gently mixed clockwise, every group of binder immediately with 900g aggregate blendings, and using Marshall method hit it is real into
Type binder consumption is respectively 3%, 4%, 5%, 6% macrovoid polyurethane concrete.
After descending health 12h indoors, the demoulding obtains four groups of macrovoid polyurethane concrete test specimens, and uses Superpave mix-design
Experiment, tests four groups of losses of dispersing of test specimen, as a result as shown in table 2.According to the result of table 2, using loss of dispersing less than 20% as
Minimum binder consumption, determines that the basalt aggregate of 4.75~9.5mm in the present embodiment uses 5% as binder consumption.
The loss of dispersing of the different binder consumptions of table 2
| Polyurethane binder consumption (%) | 3 | 4 | 5 | 6 |
| Disperse loss (%) | 100 | 76.0 | 15.3 | 7.9 |
The performance of macrovoid polyurethane concrete
1. high-temperature behavior
To the above-mentioned polyurethane binder for preparing, when its consumption is 5%, using the wheel milling process shaping poly- ammonia of macrovoid
The rut plate test specimen of ester concrete, uses vehicle tracking test instrument after health 12h, 0.1mm is permanently deformed to when testing 60 DEG C, moves steady
Fixed degree is 31500 times/mm.Dynamic stability is existing far above China《Standard specification for construction and acceptance of highway asphalt pavement》(JTG F40-
2004) porous asphalt dynamic stability should be greater than 3000 times/mm (heavy traffic flow section), 1500 times/mm (general friendships in
Forehearth section) regulation, also far above the scope of traditional 3000~8000 times/mm of porous asphalt dynamic stability, this is just
Show that macrovoid polyurethane concrete of the invention has excellent high-temperature stability.
2. infiltration coefficient
Using water creep appearance under the conditions of different head heights, different horizontal wall inscriptions, macrovoid bituminous concrete (space is tested respectively
Rate is infiltration coefficient 20%) with above-mentioned polyurethane concrete rut plate test specimen, as a result as shown in table 3.From table, same
Under precipitation intensity (head height) and horizontal wall inscription, macrovoid polyurethane concrete infiltration coefficient prepared by the present invention is all higher than traditional
Macrovoid bituminous concrete, shows that macrovoid polyurethane concrete has excellent drainage performance.
Infiltration coefficient (the unit of 3 two kinds of concrete of table：mL/s)
Note：Previous column data under same head height is the infiltration coefficient of macrovoid bituminous concrete, latter to be classified as big
The infiltration coefficient of hole polyurethane concrete.
3. the anti-performance of dispersing under adverse circumstances
Soaked by high temperature and Frozen-thawed cycled simulates two kinds of severe natural conditions, dispersed examination by standard after mal-condition
The anti-performance of dispersing dispersed under loss assessment mal-condition tested.In polyurethane binder consumption 5%, Beat numbers macrovoid
The marshal piece of polyurethane concrete, at room temperature after health 12h, one group of test specimen carries out the experiment that high temperature immersion is dispersed, its
Step be first by test specimen in 60 DEG C of ± 0.5 DEG C of waters bath with thermostatic control health 48h, 24h is placed after then taking out at room temperature, then carry out
Standard dispersion test.
Another group of test specimen carries out Frozen-thawed cycled and disperses, and its test procedure is：(1) test specimen is put into polybag, is added about
The water of 10mL, tightens sack, and test specimen is put into constant temperature refrigerator, and cryogenic temperature is -18 DEG C, keeps 4h；(2) test specimen is taken after 4h
Go out, be immediately placed in normal temperature tank and melted, thawing time 4h；(3) the step of repeating the above, 3 laggard rowers of circulation are accurate
Dispersion test.
Result of dispersing in the case of two kinds is as shown in table 4.From table, under different adverse circumstances, prepared by the present invention
Macrovoid polyurethane concrete be respectively provided with good anti-performance of dispersing.
Loss of dispersing under the adverse circumstances of table 4
| Disperse condition | Disperse loss (%) |
| High temperature immersion is dispersed | 21.84 |
| Frozen-thawed cycled disperses | 18.10 |
4. performance of anti-blockage
Plugging agent as large pored concrete, the matter of Sha Heshui are mixed using the husky and water that particle diameter is 0.075~0.15mm
Amount is than being 1:5, its performance of anti-blockage of the Assessment of Changes of quality before and after being blocked by macrovoid polyurethane concrete.Blocking test
Step is as follows：(1) the dry mass m of polyurethane concrete test specimen is weighed0；(2) plugging agent 1200g is configured, the not demoulding is slowly injected
Marshal piece upper surface；(3) after test specimen lower surface no longer oozes out plugging agent, test specimen is placed in quiet in 60 DEG C of constant temperature ovens
Put 1 hour；(4) repeat step (2) and (3), 6 hours are stood after 5 circulations by test specimen normal temperature, then weigh the quality of test specimen
m1；(5) before and after experiment with computing test specimen quality difference DELTA m=m1-m0, to block quality Δ m as evaluation test specimen performance of anti-blockage
The foundation of quality.
The blocking of test macrovoid bituminous concrete and above-mentioned polyurethane concrete marshal piece respectively as stated above
Quality, as a result as shown in table 5.From table, under the conditions of same blocking, macrovoid polyurethane concrete prepared by the present invention
Blocking quality be less than traditional macrovoid bituminous concrete, show that macrovoid polyurethane concrete has excellent anti-clogging
Energy.
5 two kinds of stopping states of concrete of table
From above-mentioned result of the test, the high-temperature behavior of macrovoid polyurethane concrete, permeability performance and performance of anti-blockage
Be significantly better than macrovoid bituminous concrete, and macrovoid polyurethane concrete without gradation design, need not during mix
Heating.Therefore, compared to asphalt, polyurethane of the present invention be applied to large pored concrete have energy saving, construct it is convenient,
The features such as superior performance；Polyurethane can completely replace the pitch to turn into the knot of bituminous concrete especially big space bituminous concrete
Close material.
Technological means disclosed in the present invention program is not limited only to the technological means disclosed in above-mentioned technological means, also includes
Constituted technical scheme is combined by above technical characteristic.
With above-mentioned according to desirable embodiment of the invention as enlightenment, by above-mentioned description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property scope is not limited to the content on specification, it is necessary to its technical scope is determined according to right.
Claims (7)
1. road surface polyurethane binder, it is characterised in that：By component A and B component in mass ratio 1:1.5~1:2 compositions, the A
Component is polymethylene multi-phenenyl isocyanate, and the B component presses matter by PPG and pentaerythrite containing terminal hydroxyl
Amount compares 95:5 compositions.
2. the preparation method of the road surface polyurethane binder described in claim 1, it is characterised in that：Comprise the following steps：
Step 1, PPG and pentaerythrite containing terminal hydroxyl are mixed, and obtain B component；
Step 2, B component and polymethylene multi-phenenyl isocyanate are mixed, and obtain road surface polyurethane binder.
3. the preparation method of polyurethane binder in road surface according to claim 2, it is characterised in that：It is powdered in step 1
Pentaerythrite is first levigate to particle diameter less than after 0.15mm, then with PPG mix.
4. application of the road surface polyurethane binder described in claim 1 in macrovoid polyurethane concrete.
5. macrovoid polyurethane concrete, it is characterised in that：It is made up of polyurethane binder, stannous iso caprylate and gathering materials, poly- ammonia
Ester binder is 3% ~ 6% with the mass ratio for gathering materials, and the quality of stannous iso caprylate is 1 ‰ ~ the 2 ‰ of polyurethane binder.
6. macrovoid polyurethane concrete according to claim 5, it is characterised in that：It is described that to gather materials be basalt aggregate,
Particle diameter is 2.36 ~ 4.75mm or 4.75 ~ 9.5mm.
7. the preparation method of the macrovoid polyurethane concrete described in claim 5, it is characterised in that：First in polyurethane binder
Middle addition stannous iso caprylate, stirring, then be to obtain macrovoid to gather by polyurethane binder and the mix at room temperature that gathers materials, after shaping
Urethane concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710213381.5A CN106883595A (en) | 2017-04-01 | 2017-04-01 | Road surface polyurethane binder and its preparation method and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710213381.5A CN106883595A (en) | 2017-04-01 | 2017-04-01 | Road surface polyurethane binder and its preparation method and application |
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| CN106883595A true CN106883595A (en) | 2017-06-23 |
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| CN201710213381.5A Pending CN106883595A (en) | 2017-04-01 | 2017-04-01 | Road surface polyurethane binder and its preparation method and application |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113845332A (en) * | 2021-10-14 | 2021-12-28 | 勤山(上海)机场场道工程技术有限公司 | Preparation method of polyurethane concrete and rapid repair method of polyurethane concrete for airport pavement |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102762623A (en) * | 2009-12-21 | 2012-10-31 | 巴斯夫欧洲公司 | Composite materials comprising aggregate and an elastomeric composition |
| CN104693413A (en) * | 2015-03-24 | 2015-06-10 | 中国铁道科学研究院铁道建筑研究所 | Polyurethane patching material used for settlement repairing of ballastless track structure for high-speed railway |
| CN105968293A (en) * | 2016-05-13 | 2016-09-28 | 广东工业大学 | Modified polyurethane emulsified asphalt concrete as well as preparation method and application thereof |
-
2017
- 2017-04-01 CN CN201710213381.5A patent/CN106883595A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102762623A (en) * | 2009-12-21 | 2012-10-31 | 巴斯夫欧洲公司 | Composite materials comprising aggregate and an elastomeric composition |
| CN104693413A (en) * | 2015-03-24 | 2015-06-10 | 中国铁道科学研究院铁道建筑研究所 | Polyurethane patching material used for settlement repairing of ballastless track structure for high-speed railway |
| CN105968293A (en) * | 2016-05-13 | 2016-09-28 | 广东工业大学 | Modified polyurethane emulsified asphalt concrete as well as preparation method and application thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113845332A (en) * | 2021-10-14 | 2021-12-28 | 勤山(上海)机场场道工程技术有限公司 | Preparation method of polyurethane concrete and rapid repair method of polyurethane concrete for airport pavement |
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Application publication date: 20170623 |