CN110283467A - A kind of adhesion coating modified emulsifying asphalt and preparation method - Google Patents

A kind of adhesion coating modified emulsifying asphalt and preparation method Download PDF

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Publication number
CN110283467A
CN110283467A CN201910648376.6A CN201910648376A CN110283467A CN 110283467 A CN110283467 A CN 110283467A CN 201910648376 A CN201910648376 A CN 201910648376A CN 110283467 A CN110283467 A CN 110283467A
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China
Prior art keywords
parts
adhesion coating
modified emulsifying
coating modified
emulsifying asphalt
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Pending
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CN201910648376.6A
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Chinese (zh)
Inventor
王潇潇
沈增晖
李九苏
黄志轩
林鸣
霍立飞
孙韵华
林咸强
张毅
韩向阳
孙玉申
郑英
赵勇
张忠令
尹红星
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Beijing Ruiji Technology Co Ltd
Changxing Technology Group Co Ltd
Hunan Xin Chang Sheng Mstar Technology Ltd
Original Assignee
Beijing Ruiji Technology Co Ltd
Changxing Technology Group Co Ltd
Hunan Xin Chang Sheng Mstar Technology Ltd
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Publication date
Application filed by Beijing Ruiji Technology Co Ltd, Changxing Technology Group Co Ltd, Hunan Xin Chang Sheng Mstar Technology Ltd filed Critical Beijing Ruiji Technology Co Ltd
Priority to CN201910648376.6A priority Critical patent/CN110283467A/en
Publication of CN110283467A publication Critical patent/CN110283467A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L95/00Compositions of bituminous materials, e.g. asphalt, tar, pitch
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/02Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The present invention relates to a kind of adhesion coating modified emulsifying asphalt and preparation methods.The adhesion coating modified emulsifying asphalt, which is characterized in that by weight, including 40 ~ 60 parts of pitch, 20 ~ 40 parts of plant asphalt, 10 ~ 20 parts of grease, 1 ~ 5 part of emulsifier, 1 ~ 4 part of stabilizer, 4 ~ 8 parts of modifying agent, 4-8 parts of pH adjusting agent, 50 ~ 80 parts of water;The modifying agent, by weight, including 30 ~ 50 parts of isocyanates, 2 ~ 6 parts of chain extender, 2 ~ 4 parts of compatilizer, 6 ~ 10 parts of montmorillonite.Adhesion coating modified emulsifying asphalt of the invention has the characteristics that fast de-emulsification speed, high and low temperature excellent performance and not viscous wheel.

Description

A kind of adhesion coating modified emulsifying asphalt and preparation method
Technical field
The present invention relates to field of bitumen technology, it is more particularly related to a kind of adhesion coating modified emulsifying asphalt and system Preparation Method.
Background technique
Adhesion coating emulsified asphalt had a major impact, is normally applied as a kind of interlaminar bonding material, the service life of road pavement In existing pitch or cement surface layer, cohesive force is provided between existing surface layer and newly-built surface layer, different interlayers is made to form one A entirety conducts the stress and strain of upper layer to cutting optimal, thus reduce the dislocation of the interlayer structure as caused by traffic loading and Sidesway reduces the generation of pavement disease, improves pavement durability.
Most popular sticking material is still common emulsified asphalt in the construction of country's pavement engineering at present, is mostly used greatly No. 70 matrix pitches, this material characteristics are that production is easy, quality is stable, technology maturation, but often high-temperature behavior is insufficient, leads Interlaminar bonding deficiency is caused to generate sliding and fall off.Even if demulsification film forming, paved mixture of still usually being marched into the arena are applied completely The wheel of work vehicle is taken away after rolling, and causes the loss for cohering layer material, and effect is cohered in reduction.Meanwhile existing glutinous layer emulsification Pitch is demulsified, and the time is long, and after spreading, unit in charge of construction would generally wait a few hours, and the vehicle that could allow to pave, which is marched into the arena, to be mixed Paving for material, causes construction efficiency to reduce.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of adhesion coating modified emulsifying asphalt and preparation method, to solve to exist De-emulsification speed is slow in road construction, molding is slow causes construction efficiency is low and high-temperature behavior is insufficient, glues wheel to cause pavement durability poor The problem of.
In order to solve the above-mentioned technical problem, technical scheme is as follows:
A kind of adhesion coating modified emulsifying asphalt, which is characterized in that by weight, including 40 ~ 60 parts of pitch, plant asphalt 20 ~ 40 Part, 10 ~ 20 parts of grease, 1 ~ 5 part of emulsifier, 1 ~ 4 part of stabilizer, 4 ~ 8 parts of modifying agent, 4-8 parts of pH adjusting agent, 50 ~ 80 parts of water;Institute Modifying agent is stated, by weight, including 30 ~ 50 parts of isocyanates, 2 ~ 6 parts of chain extender, 2 ~ 4 parts of compatilizer, 6 ~ 10 parts of montmorillonite.
Preferably, the adhesion coating modified emulsifying asphalt, which is characterized in that by weight, including 48 ~ 54 parts of pitch, 30 ~ 40 parts of plant asphalt, 14 ~ 20 parts of grease, 3 ~ 5 parts of emulsifier, 2 ~ 4 parts of stabilizer, 4 ~ 6 parts of modifying agent, pH adjusting agent 6-8 Part, 60 ~ 70 parts of water;The modifying agent, by weight, including 40 ~ 50 parts of isocyanates, 3 ~ 6 parts of chain extender, compatilizer 3 ~ 4 Part, 8 ~ 10 parts of montmorillonite.
Further, the adhesion coating modified emulsifying asphalt, which is characterized in that by weight, including 50 parts of pitch, plant 30 parts of object pitch, 16 parts of grease, 4 parts of emulsifier, 3 parts of stabilizer, 6 parts of modifying agent, 8 parts of pH adjusting agent, 70 parts of water;The modification Agent, by weight, including 40 parts of isocyanates, 3 parts of chain extender, 3 parts of compatilizer, 10 parts of montmorillonite.
Preferably, the pitch is hard grades of bitumen.
Preferably, the grease is at least one of aromatic naphtha, furfural extract oil, turpentine oil, castor oil.
Preferably, the emulsifier is to split fastly fastly coagulate type asphalt emulsifier;The pH adjusting agent is hydrochloric acid;The stabilizer For at least one of polyvinyl alcohol, calcium chloride, methylcellulose.
Preferably, the isocyanates is that toluene di-isocyanate(TDI), methyl diphenylene diisocyanate, isophorone two are different Cyanate, hexamethylene diisocyanate, in methyl diphenylene diisocyanate containing carbodiimide groups (liquefied mdi) at least It is a kind of.
Preferably, the chain extender is chloro- 4, the 4'- diaminodiphenyl-methane of 3,3'- bis-;The compatilizer is butylene two Acid anhydrides.
Preferably, the montmorillonite be sodium-based montmorillonite, calcium-base montmorillonite, magnesium-based montmorillonite, in organo montmorillonite at least It is a kind of.
The preparation method of above-mentioned adhesion coating modified emulsifying asphalt, includes the following steps:
S1, pitch, plant asphalt, grease, modifying agent weighing are mixed and heated to 130-160 DEG C, with 1100 ~ 1900rpm rate 40 ~ 120min of high speed shear is carried out, then obtains mixture A in 120 ~ 140 DEG C of 60 ~ 120min of development, it is spare;
S2, it is stirred by emulsifier, stabilizer, water Hybrid Heating to 50 ~ 70 DEG C and with 100 ~ 200rpm rate, and uses pH adjusting agent PH value is adjusted, soap lye B is obtained, it is spare;
S3, mixture A in S1 is slowly added into S2 soap lye B with 1100 ~ 1900rpm rate high speed shearing emulsification, emulsification 5 ~ 10min obtains adhesion coating modified emulsifying asphalt.
Plant asphalt, grease, modifying agent and the uniform whip modified of hard grades of bitumen can be more while improving high-temperature behavior Good is emulsified into room temperature pitch.One side plant asphalt is close with the composition of hard grades of bitumen, has with pitch good compatible Property, part pitch can be effectively replaced, plant asphalt and grease soften hard grades of bitumen, enable pitch after modified better Emulsification, another aspect plant asphalt and lipid solubilization asphalitine, can increase light components stability and its modifying agent and hard Compatibility between pitch simultaneously improves storage durability.Polyol component of the grease as synthesis of polyurethane, molecule itself have There is longer aliphatic chain, molecular flexibility is preferable.Utilize the high functionality of grease, high hydroxyl content, instead of petroleum-based polyols group Point, it is first made containing oil asphalt, then in asphalt system, is reacted with isocyanates and generate polyurethane, and pitch serves as medium, makes two Component is sufficiently reacted in pitch to generate the reticular structure of crosslinking.Chain extender can further be reacted with polyurethane prepolymer, Chain extension keeps molecular structure more complicated, and branch is more, but simultaneously, and system by-product increases.Chain extension is capable of increasing polyurethane prepolymer Molecular weight promotes pitch respective performances.Montmorillonite forms the reticular structure based on clay in pitch matrix, enhances pitch Elastic property and anti-fatigue performance at high operating temperatures, especially when pitch starts to soften, reinforcing effect is most significant.It covers simultaneously The addition for taking off soil has adverse effect on the low-temperature cracking-resistance of pitch, and the addition of polyurethane enhances the flexibility of pitch, Improve its cryogenic property, the two plays complementary effect.The addition of compatilizer is so that modifying agent is able to be uniformly dispersed in pitch In, so that modified effect is more preferably.
Pitch, water are two kinds of different materials, all have very big surface tension, it is generally the case that can not mix Form homogeneous mixture.Emulsifier is dissolved in water, and can significantly reduce the surface tension of water, makes the pitch particle of fine uniform Homogeneous mixture is capable of forming with water.Stabilizer mainly improves aqueous viscosity, and interfacial film is formed on particle, when making its collision not Easily coalescence, reduces the sinking speed of bitumen particle, and the storage stability of asphalt emulsion is improved with co-emulsifier.PH adjusting agent passes through Soap lye pH value appropriate is adjusted, can increase the activity of emulsifier, emulsifying capacity is improved, to improve emulsifying effectiveness and stable storing Property.
Compared with prior art, beneficial effects of the present invention are as follows:
1, emulsifiable property is good, de-emulsification speed is fast, molding is fast, to greatly improve construction efficiency;
2, there is not viscous wheel wheel characteristic, avoid destruction of the construction equipment to sticking material, improve bonding efficiency and bonding is strong Degree, to improve the durability on road surface;
3, the high and low temperature performance of pitch is good.
Specific embodiment
Below with reference to embodiment, the present invention will be described in detail.It should be noted that in the absence of conflict, the present invention In embodiment and embodiment in feature can be combined with each other.
Embodiment 1
In the present embodiment, the technical solution of adhesion coating modified emulsifying asphalt preparation method is:
Adhesion coating modified emulsifying asphalt by weight, including 50 parts of hard grades of bitumen, 30 parts of plant asphalt, 16 parts of castor oil, is split fastly Solidifying 4 parts of type asphalt emulsifier, 3 parts of polyvinyl alcohol, 6 parts of modifying agent, 8 parts of hydrochloric acid, 70 parts of water fastly;The modifying agent, by weight Meter, including 40 parts of liquefied mdi, 3,3'- bis- 3 parts of chloro- 4,4'- diaminodiphenyl-methanes, 3 parts of anhydride maleique, organic illiteracy is de- 10 parts of soil.
Adhesion coating modified emulsifying asphalt preparation method for material is as follows:
S1, hard grades of bitumen, plant asphalt, castor oil, modifying agent weighing are mixed and heated to 140 DEG C, with the progress of 1500rpm rate High speed shear 60min, then mixture A is obtained in 130 DEG C of development 80min, it is spare;
S2, it stirs by emulsifier, stabilizer, water Hybrid Heating to 70 DEG C and with 180rpm rate, and is arrived with salt acid for adjusting pH value 2, soap lye B is obtained, it is spare;
S3, mixture A in S1 is slowly added into S2 soap lye B with 1500rpm rate high speed shearing emulsification, emulsifies 8min and obtains Adhesion coating modified emulsifying asphalt.
Embodiment 2
In the present embodiment, the technical solution of adhesion coating modified emulsifying asphalt preparation method is:
Adhesion coating modified emulsifying asphalt by weight, including 40 parts of hard grades of bitumen, 40 parts of plant asphalt, 16 parts of castor oil, is split fastly Solidifying 4 parts of type asphalt emulsifier, 3 parts of polyvinyl alcohol, 4 parts of modifying agent, 8 parts of hydrochloric acid, 70 parts of water fastly;The modifying agent, by weight Meter, including 40 parts of liquefied mdi, 3,3'- bis- 3 parts of chloro- 4,4'- diaminodiphenyl-methanes, 3 parts of anhydride maleique, organic illiteracy is de- 10 parts of soil.
Other are same as Example 1
By embodiment 1,2 gained adhesion coating modified emulsifying asphalts and on the market common emulsified asphalt carries out asphalt performance test respectively, As a result it is shown in Table 1 respectively.
1 test result of table
The result shows that adhesion coating modified emulsifying asphalt is compared with common emulsified asphalt in embodiment 1,2, the fast, high temperature with de-emulsification speed Performance and after cryogenic property is good and demulsification hardening pavement temperature up to 60 DEG C or more not viscous the advantages of taking turns.
The content that above-described embodiment illustrates should be understood as that these embodiments are only used for being illustrated more clearly that the present invention, without For limiting the scope of the invention, after the present invention has been read, those skilled in the art are to various equivalent forms of the invention Modification each fall within the application range as defined in the appended claims.

Claims (10)

1. a kind of adhesion coating modified emulsifying asphalt, which is characterized in that by weight, including 40 ~ 60 parts of pitch, plant asphalt 20 ~ 40 parts, 10 ~ 20 parts of grease, 1 ~ 5 part of emulsifier, 1 ~ 4 part of stabilizer, 4 ~ 8 parts of modifying agent, 4-8 parts of pH adjusting agent, 50 ~ 80 parts of water; The modifying agent, by weight, including 30 ~ 50 parts of isocyanates, 2 ~ 6 parts of chain extender, 2 ~ 4 parts of compatilizer, montmorillonite 6 ~ 10 Part.
2. adhesion coating modified emulsifying asphalt according to claim 1, which is characterized in that by weight, including pitch 48 ~ 54 Part, 30 ~ 40 parts of plant asphalt, 14 ~ 20 parts of grease, 3 ~ 5 parts of emulsifier, 2 ~ 4 parts of stabilizer, 4 ~ 6 parts of modifying agent, pH adjusting agent 6- 8 parts, 60 ~ 70 parts of water;The modifying agent, by weight, including 40 ~ 50 parts of isocyanates, 3 ~ 6 parts of chain extender, compatilizer 3 ~ 4 Part, 8 ~ 10 parts of montmorillonite.
3. adhesion coating modified emulsifying asphalt according to claim 1, which is characterized in that by weight, including 50 parts of pitch, 30 parts of plant asphalt, 16 parts of grease, 4 parts of emulsifier, 3 parts of stabilizer, 6 parts of modifying agent, 8 parts of pH adjusting agent, 70 parts of water;It is described to change Property agent, by weight, including 40 parts of isocyanates, 3 parts of chain extender, 3 parts of compatilizer, 10 parts of montmorillonite.
4. adhesion coating modified emulsifying asphalt according to claim 1, which is characterized in that the pitch is hard grades of bitumen.
5. adhesion coating modified emulsifying asphalt according to claim 1, which is characterized in that the grease is aromatic naphtha, furfural pumping At least one of fuel-displaced, turpentine oil, castor oil.
6. adhesion coating modified emulsifying asphalt according to claim 1, which is characterized in that the emulsifier is to split fastly fastly coagulate type drip Green emulsifier;The pH adjusting agent is hydrochloric acid;The stabilizer is at least one of polyvinyl alcohol, calcium chloride, methylcellulose.
7. adhesion coating modified emulsifying asphalt according to claim 1, which is characterized in that the isocyanates is toluene diisocyanate Acid esters, isophorone diisocyanate, hexamethylene diisocyanate, contains carbodiimides at methyl diphenylene diisocyanate At least one of group methyl diphenylene diisocyanate (liquefied mdi).
8. adhesion coating modified emulsifying asphalt according to claim 1, which is characterized in that the chain extender is 3,3'- bis- chloro- 4, 4'- diaminodiphenyl-methane;The compatilizer is anhydride maleique.
9. adhesion coating modified emulsifying asphalt according to claim 1, which is characterized in that the montmorillonite be sodium-based montmorillonite, At least one of calcium-base montmorillonite, magnesium-based montmorillonite, organo montmorillonite.
10. such as the preparation method of the described in any item adhesion coating modified emulsifying asphalts of claim 1-9, which is characterized in that including such as Lower step:
S1, pitch, plant asphalt, grease, modifying agent weighing are mixed and heated to 130-160 DEG C, with 1100 ~ 1900rpm rate 40 ~ 120min of high speed shear is carried out, then obtains mixture A in 120 ~ 140 DEG C of 60 ~ 120min of development, it is spare;
S2, it is stirred by emulsifier, stabilizer, water Hybrid Heating to 50 ~ 70 DEG C and with 100 ~ 200rpm rate, and uses pH adjusting agent PH value is adjusted, soap lye B is obtained, it is spare;
S3, mixture A in S1 is slowly added into S2 soap lye B with 1100 ~ 1900rpm rate high speed shearing emulsification, emulsification 5 ~ 10min obtains adhesion coating modified emulsifying asphalt.
CN201910648376.6A 2019-07-18 2019-07-18 A kind of adhesion coating modified emulsifying asphalt and preparation method Pending CN110283467A (en)

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Cited By (5)

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CN110723939A (en) * 2019-09-30 2020-01-24 湖南鑫长胜材料科技有限公司 Emulsified asphalt mixture and preparation method thereof
CN111019364A (en) * 2019-11-28 2020-04-17 长沙理工大学 Emulsified asphalt with mechanical property improved through magnetic particles
CN111849416A (en) * 2020-07-27 2020-10-30 重庆交通职业学院 Interlayer adhesive and application thereof
CN112266622A (en) * 2020-10-27 2021-01-26 河北省交通规划设计院 Wheel-sticking-free emulsified asphalt and preparation method thereof
CN115075080A (en) * 2022-07-04 2022-09-20 南通交融建设工程有限公司 Second-order water-based resin asphalt bonding layer construction process

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110723939A (en) * 2019-09-30 2020-01-24 湖南鑫长胜材料科技有限公司 Emulsified asphalt mixture and preparation method thereof
CN111019364A (en) * 2019-11-28 2020-04-17 长沙理工大学 Emulsified asphalt with mechanical property improved through magnetic particles
CN111849416A (en) * 2020-07-27 2020-10-30 重庆交通职业学院 Interlayer adhesive and application thereof
CN112266622A (en) * 2020-10-27 2021-01-26 河北省交通规划设计院 Wheel-sticking-free emulsified asphalt and preparation method thereof
CN112266622B (en) * 2020-10-27 2022-07-01 河北省交通规划设计研究院有限公司 Wheel-sticking-free emulsified asphalt and preparation method thereof
CN115075080A (en) * 2022-07-04 2022-09-20 南通交融建设工程有限公司 Second-order water-based resin asphalt bonding layer construction process

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