CN108841187A - A kind of polyisobutene modified asphalt for construction and preparation method - Google Patents
A kind of polyisobutene modified asphalt for construction and preparation method Download PDFInfo
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- CN108841187A CN108841187A CN201810807138.0A CN201810807138A CN108841187A CN 108841187 A CN108841187 A CN 108841187A CN 201810807138 A CN201810807138 A CN 201810807138A CN 108841187 A CN108841187 A CN 108841187A
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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
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/2224—Magnesium hydroxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
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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
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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Abstract
The present invention relates to a kind of polyisobutene modified asphalt for construction and preparation method thereof.It is to be made of following parts by weight that matrix, which implements technical solution,：100 parts of basic asphalt, 10-30 parts of epoxidation polyisobutene, 5-10 parts of reinforcing fiber, 50-80 parts of inorganic filler, 0.5-3 parts of silane coupling agent, 0.5-2 parts of age resister.Epoxidised polyisobutene, which comes modified lignin resin and inorganic filler, can be obviously improved its compatibility, increase the hot storage stability of modified pitch, simultaneously using polyisobutene come toughening pitch, it can significantly improve the high and low temperature resistance of pitch, the big problem of brittleness, and polyisobutene can have good hydrophobic performance, weatherability etc., can significantly improve the weatherability etc. of pitch.
Description
Technical field
The invention belongs to organic polymer composite technical field more particularly to a kind of polyisobutene modified asphalt for construction
And preparation method thereof.
Background technique
Asphalt has good thermoplasticity, adherence, viscoplasticity, is the basic material of construction waterproofing engineering, still
It is since the sensibility to temperature is stronger, and high temperature easily trickles, and black brittleness is big, is easy cracking, and its intensity is low, poor flexibility, only
The requirement built now is unable to satisfy as architectural waterproof material using pitch.
Currently, the modification work to pitch has obtained a large amount of report, the most commonly used is with thermoplastic elastomer body such as
The polymer modifiers such as SBS, SBR, although these polymer modifiers can modified pitch in some aspects performance, improve pitch
The shortcomings that, but these polymer are often with the co-mixing system of matrix pitch that there are thermodynamic instabilities, are easy to produce isolation, make
At product, performance is undesirable in use, and polymer modifiers is expensive, and production technology is complicated, and energy consumption is tight
Weight, leads to the modified pitch higher cost prepared.
Add a large amount of inorganic filler often in building asphalt to enhance the intensity of pitch, but these inorganic filler categories
It is often incompatible with pitch in inertia condiment, it is easy to cause inorganic filler and pitch to isolate under long-time static conditions, causes
The problems such as asphaltic products poor storage stability of preparation.If patent CN1935903A discloses a kind of modified pitch, it is added to big
The fillers such as zinc borate, antimony oxide, magnesium hydroxide, the aluminium hydroxide of amount, it is easy to inorganic filler be caused to occur in pitch
Isolation, leads to the problem that storage stability is bad.CN1935902A discloses a kind of modified pitch, and addition is largely inorganic to fill out
Material causes technique to increase production cost for a long time by high speed shear technique, even if in this way, long-term thermal hydrogen storage also will appear
Segregation phenomenon causes hot storage stability bad.
Summary of the invention
That the purpose of the present invention is to propose to a kind of toughness properties is preferable, resistance to low temperature preferably, inorganic filler and matrix it is compatible
Preferable, the preferable modified asphalt for construction of steady heat storage performance of property.
A kind of polyisobutene modified asphalt for construction of the invention, is grouped as by the group of following parts by weight：
100 parts of basic asphalt
10-30 parts of epoxidation polyisobutene
5-10 parts of reinforcing fiber
50-80 parts of inorganic filler
0.5-3 parts of silane coupling agent
0.5-2 parts of age resister
In the present invention, the basic asphalt selects virgin petroleum pitch, byerlyte, solvent deoiling asphalt, molten
At least one of agent de-oiling asphalt.
In the present invention, the epoxidation polyisobutene is that polyisobutene terminal olefin double bond is prepared by peroxidating method
It arrives, the introducing of polyisobutene can significantly improve the high and low temperature resistance of pitch, the brittleness for improving pitch, increase the tough of system
Property.
In the present invention, polyisobutene end α ethylene linkage content >=85%, molecular weight is controlled between 400-3000.
In the present invention, the epoxidation polyisobutene is polyisobutene using hydrogen peroxide oxidation process, oxygen and catalysis
Agent catalysis or peroxide acid oxidase are prepared.
Reinforcing fiber of the present invention selects lignin, and a large amount of hydroxyl, phenolic hydroxyl group, carboxyl isoreactivity base are contained in lignin
Group, lignin are that polar substances and basic asphalt compatibility are poor, therefore gather using phenolic hydroxyl group, carboxyl and epoxidation thereon
Polyisobutene is introduced on lignin the compatibility for improving lignin and basic asphalt by isobutene reaction.
The inorganic filler be selected from magnesium hydroxide, aluminium hydroxide, barium sulfate, coarse whiting, gangue, barium sulfate, calcium sulfate,
At least one such as titanium dioxide, mica, aluminium-magnesium silicate, talcum powder, perlite, aluminium oxide, magnesia, magnesium carbonate.
Inorganic filler is chosen physical mechanical power method and is crushed, can be using ultrafine grinding device in the prior art, such as surpasses
Velocity of sound airslide disintegrating mill, variable frequency airflow pulverizer, sand mill, ball mill etc., partial size select 30-50um, preferably 40um or less grain
Diameter.
Common inorganic filler is chosen silane coupling agent and is surface-treated, and the dispersibility of inorganic filler is on the one hand improved,
On the other hand improve the compatibility of inorganic filler and matrix.
For the mechanism of action of common silane coupling agent, the alkoxy portion in silane coupled agent molecule is hydrolyzed
And the silanol group formed carries out chemical knot in the surface of inorganic material, and then by dehydration condensation by Hydrogen Binding Adsorption
It closes.As officials such as the epoxy group of a part in silane coupled agent molecule, amino, vinyl, acryloyl group, methylacryloyls
It can roll into a ball and be located at outside relative to inorganic filler particle.Think herein, though adsorbed identical silane coupling agent or with this implementation
The silane coupling agent of other different combinations of mode, absorption, binding force are also small, therefore to the protecting effect of inorganic filler
It is small.
On the other hand, epoxy group and the reactivity of amino are high, and binding force is larger, therefore, a kind of amino silicane coupling agent
A part in molecule is adsorbed in the surface of inorganic condiment, forms first layer silane coupling layer, the functional group on the outside of it with
Epoxidation polyisobutene is chemically combined.As a result, epoxidised polyisobutene is located at the outside of inorganic filler, it is believed that
Reaction in this way, forms the protective layer for the silane coupling agent being securely chemically combined, therefore can improve inorganic filler
Dispersibility and compatibility.
As the amino system silane coupling agent that can be used for present embodiment, it is selected from N-2- (amino-ethyl) -3-3 aminopropyl
Methyl dimethoxysilane, N-2-（Amino-ethyl）- 3-3 TSL 8330,3- aminopropyl trimethoxy silicon
Alkane, 3-aminopropyltriethoxysilane, 3- triethoxysilyl-N- (1,3- dimethyl-butylidene) propylamine, N- benzene
Base -3- TSL 8330 etc..
It can be successively method as the order of addition of silane coupling agent：With a kind of amino silicane coupling agent to inorganic filler
Particle is surface-treated, and is then surface-treated with epoxidation polyisobutene.
Method as the surface treatment using silane coupling agent is not particularly limited, such as has damp process, fills out inorganic
Silane coupling agent is added in slurry liquid；Inorganic filler particle is added in blender by dry method on one side in blender, and one
Add silane coupling agent in side；Mixing method can also be used simultaneously, for example inorganic filler particle is cooperated in resin with others
Agent is kneaded together, and the present invention can be carried out using any one of the above method.
The age resister is selected from least one of phenolic antioxidant, phosphite ester antioxidant.
The present invention also provides a kind of preparation method for preparing this polyisobutene modified asphalt for construction, the specific steps are：
1）Inorganic filler is added separately in star lapping machine, is added in ethanol/water (50/50 mass parts), so
Amino silane coupling agent is added afterwards, grinds 5-10 hours, fineness of grind reaches<Then 20um carries out grinding slurry
Drying crushes the filler that preparation has been modified；
2）It will（1）In the inorganic filler handled well and PART EPOXY polyisobutene（30-50%）It is added in mixer, heats up
To 90-120 DEG C, the modified inorganic filler of polyisobutene is prepared in mixing after 30-60 minutes；
3）Lignin and remaining epoxidation polyisobutene are added in mixer, are warming up to 120-150 DEG C, mixing 30-
60 minutes, obtain the modified lignin of polyisobutene；
4）By basic asphalt and 2）The inorganic filler of middle modification and 3）The lignin of middle modification is added in reaction kettle, heating
To 180-200 DEG C, after it melts, after carrying out high speed dispersion 3-5 hours, 90-120 DEG C is cooled to, it is abundant that age resister is added
After stirring after 4-8 hours, polyisobutene modified asphalt for construction is prepared in cooling discharge.
Compared with prior art, the present invention has following benefit：
1. the present invention, come toughening pitch, can significantly improve the high and low temperature resistance of pitch, brittleness using epoxidation polyisobutene
Big problem, and polyisobutene can have good hydrophobic performance, weatherability etc., can significantly improve the weatherability of pitch
Deng.
2. the present invention is using epoxidised polyisobutene come modified lignin resin, lignin is from a wealth of sources, low in cost, can
The economy of modified pitch is significantly improved, introducing polyisobutene on lignin can significantly improve phase of the lignin with basic asphalt
Capacitive.
3. on the one hand can be avoided list using amino silicane coupling agent and the common modified inorganic filler of epoxidation polyisobutene
One aminosilane coupling agent modifying inorganic filler leads to the unconspicuous problem of effect, on the other hand can improve inorganic filler and base
The compatibility of plinth pitch.
4. the simple process of use of the invention operates more convenient, and whole without volatile materials, to operation
Personal injury is small, and operation economy is preferable.
Specific embodiment
For a further understanding of the present invention, the present invention is illustrated below with reference to specific implementation case.
Embodiment 1
A kind of polyisobutene modified asphalt for construction is grouped as by the group of following parts by weight：
100 parts of basic asphalt
10 parts of epoxidation polyisobutene
5 parts of lignin
50 parts of inorganic filler
1 part of silane coupling agent
0.5 part of age resister
The basic asphalt is selected from virgin petroleum pitch.
The inorganic filler is selected from 15 parts of magnesium hydroxide, 20 parts of barium sulfate, calcium carbonate 15.
The silane coupling agent is selected from amino silicane coupling agent, is selected from 3-aminopropyltriethoxysilane.
The age resister is selected from phenolic antioxidant.
The preparation method of such polyisobutene modified asphalt for construction is：
1）Magnesium hydroxide, barium sulfate, calcium carbonate are added separately in star lapping machine, ethanol/water (50/50 is added
Mass parts) in, amino silane coupling agent is then added, grinds 5-10 hours, fineness of grind reaches<Then 20um will
Grinding slurry is dried, crushes the filler that preparation has been modified；
2）It will（1）In the inorganic filler handled well and 5 parts of epoxidation polyisobutene be added in mixer, be warming up to 90-120
DEG C, the modified inorganic filler of polyisobutene is prepared in mixing after 30-60 minutes；
3）Lignin and remaining epoxidation polyisobutene are added in mixer, are warming up to 120-150 DEG C, mixing 30-
60 minutes, obtain the modified lignin of polyisobutene；
4）By basic asphalt and 2）The inorganic filler of middle modification and 3）The lignin of middle modification is added in reaction kettle, heating
To 180-200 DEG C, after it melts, after carrying out high speed dispersion 3-5 hours, 90-120 DEG C is cooled to, it is abundant that age resister is added
After stirring after 4-8 hours, polyisobutene modified asphalt for construction is prepared in cooling discharge.
Its basic performance of the modified asphalt for construction of preparation is shown in Table 1.
Embodiment 2
A kind of polyisobutene modified asphalt for construction is grouped as by the group of following parts by weight：
100 parts of basic asphalt
20 parts of epoxidation polyisobutene
7.5 parts of lignin
60 parts of inorganic filler
1.5 parts of silane coupling agent
1 part of age resister
The basic asphalt is selected from virgin petroleum pitch.
The inorganic filler is selected from 20 parts of magnesium hydroxide, 20 parts of barium sulfate, 20 parts of calcium carbonate.
The silane coupling agent is selected from amino silicane coupling agent, is selected from 3-aminopropyltriethoxysilane.
The age resister is selected from phenolic antioxidant.
The preparation method of such polyisobutene modified asphalt for construction is：
1）Magnesium hydroxide, barium sulfate, calcium carbonate are added separately in star lapping machine, ethanol/water (50/50 is added
Mass parts) in, amino silane coupling agent is then added, grinds 5-10 hours, fineness of grind reaches<Then 20um will
Grinding slurry is dried, crushes the filler that preparation has been modified；
2）It will（1）In the inorganic filler handled well and 10 parts of epoxidation polyisobutene be added in mixer, be warming up to 90-120
DEG C, the modified inorganic filler of polyisobutene is prepared in mixing after 30-60 minutes；
3）Lignin and remaining epoxidation polyisobutene are added in mixer, are warming up to 120-150 DEG C, mixing 30-
60 minutes, obtain the modified lignin of polyisobutene；
4）By basic asphalt and 2）The inorganic filler of middle modification and 3）The lignin of middle modification is added in reaction kettle, heating
To 180-200 DEG C, after it melts, after carrying out high speed dispersion 3-5 hours, 90-120 DEG C is cooled to, it is abundant that age resister is added
After stirring after 4-8 hours, polyisobutene modified asphalt for construction is prepared in cooling discharge.
Its basic performance of the modified asphalt for construction of preparation is shown in Table 1.
Embodiment 3
A kind of polyisobutene modified asphalt for construction is grouped as by the group of following parts by weight：
100 parts of basic asphalt
30 parts of epoxidation polyisobutene
10 parts of lignin
80 parts of inorganic filler
3 parts of silane coupling agent
2 parts of age resister
The basic asphalt is selected from virgin petroleum pitch.
The inorganic filler is selected from 25 parts of magnesium hydroxide, 25 parts of barium sulfate, 30 parts of calcium carbonate.
The silane coupling agent is selected from amino silicane coupling agent, is selected from 3-aminopropyltriethoxysilane.
The age resister is selected from phenolic antioxidant.
The preparation method of such polyisobutene modified asphalt for construction is：
1）Magnesium hydroxide, barium sulfate, calcium carbonate are added separately in star lapping machine, ethanol/water (50/50 is added
Mass parts) in, amino silane coupling agent is then added, grinds 5-10 hours, fineness of grind reaches<Then 20um will
Grinding slurry is dried, crushes the filler that preparation has been modified；
2）It will（1）In the inorganic filler handled well and 15 parts of epoxidation polyisobutene be added in mixer, be warming up to 90-120
DEG C, the modified inorganic filler of polyisobutene is prepared in mixing after 30-60 minutes；
3）Lignin and remaining epoxidation polyisobutene are added in mixer, are warming up to 120-150 DEG C, mixing 30-
60 minutes, obtain the modified lignin of polyisobutene；
4）By basic asphalt and 2）The inorganic filler of middle modification and 3）The lignin of middle modification is added in reaction kettle, heating
To 180-200 DEG C, after it melts, after carrying out high speed dispersion 3-5 hours, 90-120 DEG C is cooled to, it is abundant that age resister is added
After stirring after 4-8 hours, polyisobutene modified asphalt for construction is prepared in cooling discharge.
Its basic performance of the modified asphalt for construction of preparation is shown in Table 1.
Embodiment 4
A kind of polyisobutene modified asphalt for construction is grouped as by the group of following parts by weight：
100 parts of basic asphalt
20 parts of epoxidation polyisobutene
8 parts of lignin
60 parts of inorganic filler
2 parts of silane coupling agent
1 part of age resister
The basic asphalt is selected from solvent deoiling asphalt.
The inorganic filler is selected from 10 parts of magnesium hydroxide, 10 parts of gangue, 5 parts of mica, 15 parts of barium sulfate, calcium carbonate 20
Part.
The silane coupling agent is selected from amino silicane coupling agent, is selected from 3- TSL 8330.
The age resister is selected from phosphite antioxidant.
The preparation method of such polyisobutene modified asphalt for construction is：
1）By 10 parts of magnesium hydroxide, 10 parts of gangue, 5 parts of mica, 15 parts of barium sulfate, calcium carbonate 20
Part is added separately in star lapping machine, is added in ethanol/water (50/50 mass parts), and it is even that amino one type of silane is then added
Join agent, grinds 5-10 hours, fineness of grind reaches<Then grinding slurry is dried, crushes what preparation had been modified by 20um
Filler；
2）It will（1）In the inorganic filler handled well and 10 parts of epoxidation polyisobutene be added in mixer, be warming up to 90-120
DEG C, the modified inorganic filler of polyisobutene is prepared in mixing after 30-60 minutes；
3）Lignin and remaining epoxidation polyisobutene are added in mixer, are warming up to 120-150 DEG C, mixing 30-
60 minutes, obtain the modified lignin of polyisobutene；
4）By basic asphalt and 2）The inorganic filler of middle modification and 3）The lignin of middle modification is added in reaction kettle, heating
To 180-200 DEG C, after it melts, after carrying out high speed dispersion 3-5 hours, 90-120 DEG C is cooled to, it is abundant that age resister is added
After stirring after 4-8 hours, polyisobutene modified asphalt for construction is prepared in cooling discharge.
Its basic performance of the modified asphalt for construction of preparation is shown in Table 1.
Comparative example 1
A kind of polyisobutene modified asphalt for construction is grouped as by the group of following parts by weight：
100 parts of basic asphalt
8 parts of lignin
60 parts of inorganic filler
2 parts of silane coupling agent
1 part of age resister
The basic asphalt is selected from solvent deoiling asphalt.
The inorganic filler is selected from 10 parts of magnesium hydroxide, 10 parts of gangue, 5 parts of mica, 15 parts of barium sulfate, calcium carbonate 20
Part.
The silane coupling agent is selected from amino silicane coupling agent, is selected from 3- TSL 8330.
The age resister is selected from phosphite antioxidant.
The preparation method of such polyisobutene modified asphalt for construction is：
1）By 10 parts of magnesium hydroxide, 10 parts of gangue, 5 parts of mica, 15 parts of barium sulfate, calcium carbonate 20
Part is added separately in star lapping machine, is added in ethanol/water (50/50 mass parts), and it is even that amino one type of silane is then added
Join agent, grinds 5-10 hours, fineness of grind reaches<Then grinding slurry is dried, crushes what preparation had been modified by 20um
Filler；
2）By basic asphalt and 1）The inorganic filler of middle modification and lignin are added in reaction kettle, are warming up to 180-200
DEG C, after it melts, after carrying out high speed dispersion 3-5 hours, 90-120 DEG C is cooled to, age resister is added, rear 4-8 is sufficiently stirred
After hour, polyisobutene modified asphalt for construction is prepared in cooling discharge.
Its basic performance of the modified asphalt for construction of preparation is shown in Table 1.
Table 1
Polyisobutene is added compared with 1 performance of comparative example it is found that in modified pitch by the embodiment 1-4 in table 1 to be shown
Flexibility, tensile strength, the caking property of improvement system are write, and since polyisobutene has good hydrophobicity, it can be significant
Improve the water penetration of modified pitch, while by heat storage experiment discovery, having by the modified inorganic filler of polyisobutene and matrix
There is good compatibility, places do not isolate for a long time.
Claims (10)
1. a kind of polyisobutene modified asphalt for construction of the invention, is grouped as by the group of following parts by weight：
100 parts of basic asphalt
10-30 parts of epoxidation polyisobutene
5-10 parts of reinforcing fiber
50-80 parts of inorganic filler
0.5-3 parts of silane coupling agent
0.5-2 parts of age resister.
2. basic asphalt according to claim 1 selects virgin petroleum pitch, byerlyte, solvent deoiling petroleum
At least one of pitch, solvent deoiling asphalt.
3. epoxidation polyisobutene according to claim 1 is that polyisobutene terminal olefin double bond passes through peroxidating legal system
It is standby to obtain.
4. α ethylene linkage content >=85% in polyisobutene end according to claim 3, molecular weight control 400-3000 it
Between.
5. epoxidation polyisobutene according to claim 3 is polyisobutene using hydrogen peroxide oxidation process, oxygen and
Catalyst or peroxide acid oxidase are prepared.
6. reinforcing fiber according to claim 1 selects lignin.
7. inorganic filler according to claim 1 be selected from magnesium hydroxide, aluminium hydroxide, barium sulfate, coarse whiting, gangue,
Barium sulfate, calcium sulfate, titanium dioxide, mica, aluminium-magnesium silicate, talcum powder, perlite, aluminium oxide, magnesia, magnesium carbonate etc. at least one
Kind.
8. silane coupling agent according to claim 1 is selected from amino system silane coupling agent, it is further selected from N-2- (ammonia
Base ethyl) -3-3 aminopropylmethyldimethoxysilane, N-2-（Amino-ethyl）- 3-3 TSL 8330,3-
TSL 8330,3-aminopropyltriethoxysilane, 3- triethoxysilyl-N- (1,3- dimethyl-
Butylidene) propylamine, N- phenyl -3- TSL 8330 etc..
9. age resister according to claim 1 in phenolic antioxidant, phosphite ester antioxidant at least one
Kind.
10. the present invention also provides a kind of preparation method for preparing this polyisobutene modified asphalt for construction, the specific steps are：
1）Inorganic filler is added separately in star lapping machine, is added in ethanol/water (50/50 mass parts), so
Amino silane coupling agent is added afterwards, grinds 5-10 hours, fineness of grind reaches<Then 20um carries out grinding slurry
Drying crushes the filler that preparation has been modified；
2）It will（1）In the inorganic filler handled well and PART EPOXY polyisobutene（30-50%）It is added in mixer, heats up
To 90-120 DEG C, the modified inorganic filler of polyisobutene is prepared in mixing after 30-60 minutes；
3）Lignin and remaining epoxidation polyisobutene are added in mixer, are warming up to 120-150 DEG C, mixing 30-
60 minutes, obtain the modified lignin of polyisobutene；
4）By basic asphalt and 2）The inorganic filler of middle modification and 3）The lignin of middle modification is added in reaction kettle, heating
To 180-200 DEG C, after it melts, after carrying out high speed dispersion 3-5 hours, 90-120 DEG C is cooled to, it is abundant that age resister is added
After stirring after 4-8 hours, polyisobutene modified asphalt for construction is prepared in cooling discharge.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109251544A (en) * | 2018-08-24 | 2019-01-22 | 朱红艳 | A kind of polyisobutene modified asphalt for construction and preparation method |
| CN113831615A (en) * | 2021-09-26 | 2021-12-24 | 山东高氏科工贸有限公司 | Instant SBR asphalt modifier and preparation method thereof |
| CN114651611A (en) * | 2022-04-15 | 2022-06-24 | 河南工大设计研究院 | Low-temperature grain storage double-layer wall square silo and method for entering and exiting silo |
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| FR1541748A (en) * | 1967-08-28 | 1968-10-11 | Exxon Research Engineering Co | anionic emulsifiers for bitumen |
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| CN105504841A (en) * | 2016-01-08 | 2016-04-20 | 江西玉龙防水技术股份有限公司 | High-cohesiveness self-adhesive waterproof roll |
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| CN103773016A (en) * | 2014-01-20 | 2014-05-07 | 南通东南公路工程有限公司 | Asphalt polyolefin waterproof material |
| CN104327522A (en) * | 2014-11-12 | 2015-02-04 | 吴江华威特种油有限公司 | Modified asphalt for construction and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109251544A (en) * | 2018-08-24 | 2019-01-22 | 朱红艳 | A kind of polyisobutene modified asphalt for construction and preparation method |
| CN113831615A (en) * | 2021-09-26 | 2021-12-24 | 山东高氏科工贸有限公司 | Instant SBR asphalt modifier and preparation method thereof |
| CN113831615B (en) * | 2021-09-26 | 2023-01-13 | 山东高氏科工贸有限公司 | Instant SBR asphalt modifier and preparation method thereof |
| CN114651611A (en) * | 2022-04-15 | 2022-06-24 | 河南工大设计研究院 | Low-temperature grain storage double-layer wall square silo and method for entering and exiting silo |
| CN114651611B (en) * | 2022-04-15 | 2023-09-15 | 河南工大设计研究院 | Low-temperature grain storage double-layer wall square silo and silo inlet and outlet method |
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