CN107266768A - A kind of preparation technology of novel environment friendly organic rock asphalt modifier and application - Google Patents
A kind of preparation technology of novel environment friendly organic rock asphalt modifier and application Download PDFInfo
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- CN107266768A CN107266768A CN201710502489.6A CN201710502489A CN107266768A CN 107266768 A CN107266768 A CN 107266768A CN 201710502489 A CN201710502489 A CN 201710502489A CN 107266768 A CN107266768 A CN 107266768A
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
Abstract
The invention discloses a kind of novel environment friendly kir modifying agent preparation technology, small-molecular-weight high density polyethylene (HDPE) powder, catalyst, dispersant, white oil etc. are mixed and added in oil heating revolving reaction kettle A, industrial H2O2It is fitted into sealing stainless steel heating kettle B, heat respectively, after both temperature rise to certain temperature, both are mixed and is incubated when being heated to a steady temperature, make polythene material that slow oxidative reaction takes place, the modified polyethylene material with ester group and soap base is prepared, insulation crushes the modifying agent that kir is made through screening after terminating.
Description
Technical field
The present invention relates to a kind of preparation technology of novel environment friendly organic rock asphalt modifier, kir can be used as drip in itself
Blue or green modifier material, and the present invention is to prepare a kind of modifying agent of modifying agent, mainly with a kind of small-molecular-weight, high-density polyethylene
Alkene is material modified, the 30-100% or so of kir is added, to strengthen kir macromolecular material and inorganic filler（Ore, base
Material etc.）And the binding ability between pitch, organic-philic group can strengthen kir and couple with the coupling of pitch, and close inorganic base
Group can strengthen kir with the boundary strength and internal lubrication of sand material and pitch and sand material to improve pavement asphalt
Rutting resistance, water resistant damage performance and cold resistance energy, extend the service life of bituminous paving, and can reduce bituminous paving laying
Temperature belongs to chemical technology field to reach the modification purpose of energy-saving and emission-reduction.
Background technology
To reducing the notice of greenhouse gas emission in being planned according to 13, to ensure the low-carbon hair for completing to refer in planning
Open up target and effectively control greenhouse gas emission, and in current Chinese rapid urbanization course, kir is as a kind of hard
Matter pitch, based on " similar to mix " principle, it with asphalt is high polymer material that is most natural, most mixing to be；Natural rock asphalt
Substituted as modifying agent after the asphalt of part（Usually 10-15%）Asphalt there is preferable anti-rut behavior, it is anti-
Water Damage performance and ageing resistace, disclosure satisfy that all technical requirements of China's specification to modified asphalt mixture；Use rock
Asphalt modifier can have larger advantage in terms of high-temperature stable, and High Grade Bitumen Pavement can be solved well due to big friendship
Flux, pavement track caused by overweight overload etc., the phenomenon such as early disease.
But kir is as a kind of asphalt modification agent material, the structural strength step-down in high temperature and low temperature is still there is poor
The shortcomings of, more existing all to show on 10 DEG C, 15 DEG C ductility tests of processes of rock asphalt modified asphalt and EBR experimental results, admixture
After kir, the cryogenic property of matrix pitch is all compared with the poor performance at low temperatures of matrix pitch, and this popularization for just hindering kir should
With with market-oriented demand, so becoming larger area in cold district or temperature is rarely employed kir as asphalt modifier material
Material.
Similar products have put into large-scale use abroad.In the research report of Florida traffic and transportation sector in 2004
Refer to, minor detrimental accumulation of the external similar products to bituminous highway has obvious improvement result, so that public affairs greatly improved
Road resisting breakage performance.But used in external product be generally fusing point cryogenic product between 100 DEG C to 110 DEG C, at home in low latitude
Degree or traffic complex area stability are weak.
The content of the invention
The technical problem to be solved in the present invention is that there is provided a kind of system of novel environment friendly kir modifying agent for deficiency above
Standby technique, the kir modifier material prepared based on this kind of technique has bipolarity key, not only has with asphalt base-material good
Fusion binding ability, also and inorganic filler（Ore, ore powder, gather materials）With coupled action, mixed in asphalt
Close and merged rapidly in process, soilless sticking and caking phenomenon.The present invention has technological process simple, and equipment is uncomplicated excellent
Point.
It is excellent that this novel environment friendly kir modifying agent has that softening point is high, hardness is strong, nontoxic, cold and hot stability is strong etc.
Point, dispersiveness is splendid and with excellent outside and internal lubrication and coupled action in kir and matrix pitch, to rock
Pitch has excellent modified function, and water repelling property is strong at normal temperatures, and resistance to chemical attack ability is good, with suitable stabilization
Property.The ester group and soap base wherein contained can form stable network structure by coupled action in kir and pitch, make
Asphalt interface forms good counter-bending and tensile resistance, improves material bulk strength and extension highway service life.
And coupling forms network structure and can greatly improve the performance of bituminous paving in pitch and modifying agent.
The new kir modifying agent being made can be obviously improved the compatibility and bond strength of kir and highway asphalt, drop
Low whipping temp, reduces mixing time, low temperature modification effect of the enhancing kir for pitch.
In order to solve the above technical problems, the technical solution adopted by the present invention is as follows：A kind of novel environment friendly kir is modified
The preparation technology of agent, it is characterised in that comprise the following steps：
（1）Mixing：Small-molecular-weight, high density polyethylene (HDPE) powder, catalyst, dispersant, white oil are loaded into oily heating response simultaneously
In kettle A, and it is uniformly mixed mixture is made；
Again by industrial H2O2It is fitted into heated sealed kettle B；
（2）Preheating：Powder after mixing is carried out tentatively to be heated to 50-60 DEG C；The industry in sealing reactor is loaded into simultaneously
H2O2It is preheated to 50-60 DEG C；
（3）Mixing：By the industrial H after preheating2O2It is passed directly into the heating response kettle A after preheating, and stirring is allowed to mixing
Sealed after even, obtain liquid powder mixture；
（4）Heating：Gained liquid powder mixture agitating and heating, is warming up to 130-165 DEG C after mixing, and is incubated 36-72 hours, insulation
Period quickly stirs, and rotating speed is 350-420r/min；
（5）Heat preservation and dryness：Soaking time moisture in mixed material is defined when dropping to ＜ 1%, stops heating, continues to rotate
Stirring, until being cooled to room temperature；
（6）Screening is crushed：Mixed powder 60-300 eye mesh screen screenings after cool drying, big block is crushed again after screening, then is sieved
Kir modifying agent is made in inspection.
A kind of prioritization scheme, step（1）Middle catalyst is metallocene catalyst, and purity is pure to analyze, and addition is poly- second
The 0.5-1.5% of alkene powder quality.
Further, step（1）Middle industrial H2O2Purity is 27%, and addition is the 10-30% of polyethylene powder quality.
Further, step（1）Middle dispersant is calcium, the stearate of zinc, and addition is the 2- of polyethylene powder quality
10%。
Further, white oil addition is about the 2-10% of polyethylene powder quality.
Based on the novel environment friendly organic rock asphalt modifier, the application of the organic rock asphalt modifier：The kir
Modifying agent is used in mixed way with kir, and the mass percentage content of kir modifying agent is 0.5-8%；Kir modifier material
It is used in mixed way with the sand material after pitch, kir base-material or heating, consumption is≤4 ‰.
The present invention uses above technical scheme, compared with prior art, with advantages below：
(1) present invention process process is simple, energy-conserving and environment-protective relatively low to equipment requirement.
(2) using low molecule amount high density polyethylene (HDPE) as raw material, industrial H2O2For modifying agent, the kir modifier material of preparation
It is nontoxic, environmental protection, production process is pollution-free, and material is produced.
(3) the material is obvious to the modified effect of kir, can greatly improve kir as the cold resistant of asphalt modifier
Performance so that kir can be used in cold area.
(4), as a kind of modifying agent of modifying agent, the cold resistant ability of kir can not only be improved, moreover it is possible to pitch and rock
Pitch produces coupling effect, and road pavement asphalt material is modified, and strengthens the Rut resistance of bituminous paving, water resistant and damages energy
Power, improves Pavement Condition and increases the service life.
(5) kir modifier material is that powder can be mixed directly with kir, stirs and can be used, can be in applying
Work execute-in-place, simple and convenient, effect is obvious.
（6）140 DEG C to 150 DEG C of kir modifying agent drop point, high temperature resistant property is strong；Viscosity：14800-21500.
（7）After 70# matrix pitches admixture RARP, the cleavage strength before and after test specimen freeze thawing improves 14.1% before relatively filling.
With reference to embodiment, the present invention will be further described.
Example is embodied
A kind of embodiment 1, preparation technology of novel environment friendly organic rock asphalt modifier, comprises the following steps：
（1）Mixing：Small-molecular-weight, high density polyethylene (HDPE) powder 100kg, catalyst 0.5kg, dispersant 2kg, white oil 2kg is same
When be fitted into oily heating response kettle A, and be uniformly mixed mixture be made.Again by 10kg industry H2O2Load heated sealed kettle B
In.
（2）Preheating：Powder after mixing is carried out tentatively to be heated to 50-60 DEG C；The work in sealing reactor is loaded into simultaneously
Industry H2O2It is preheated to 50-60 DEG C；
（3）Mixing：By the industrial H after preheating2O2It is passed directly into the heating response kettle A after preheating, and stirring is allowed to mixing
Sealed after even.
（4）Heating：Gained liquid powder mixture agitating and heating, is warming up to 130 DEG C after mixing, and is incubated 36 hours, soak
Between quickly stir, rotating speed is 350-420r/min；
（5）Dry：After insulation terminates, mixed material stir and divulged information, when making that wherein moisture drops to ＜ 1%, stop adding
Heat, continues Stirring, until being cooled to room temperature.
（6）Screening is crushed：Mixed powder 60-300 eye mesh screen screenings after cool drying, big block is crushed again after screening,
Kir modifier material is made in screening again.
Kir modifying agent technical indicator：
| Drop point DEG C（Droplet point） | 131.5℃ |
| Density g/cm3（Density） | 0.98 |
| Acid number mg KOH/g（Acid） | 16.0 |
| Viscosity（150℃） mPa·s（Viscosity ） | 21500 |
| Hardness（25℃）dmm（Hardness） | ＜ 0.5 |
| Granularity mesh（Particle size） | 60 |
| Outward appearance (Appearance) | White powder White powder |
A kind of embodiment 2, preparation technology of novel environment friendly organic rock asphalt modifier, comprises the following steps：
（1）Mixing：Small-molecular-weight, high density polyethylene (HDPE) powder 100kg, catalyst 0.6kg, dispersant 3kg, white oil 3kg is same
When be fitted into oily heating response kettle A, and be uniformly mixed mixture be made.Again by 12kg industry H2O2Load heated sealed kettle B
In.
（2）Preheating：Powder after mixing is carried out tentatively to be heated to 50-60 DEG C；The work in sealing reactor is loaded into simultaneously
Industry H2O2It is preheated to 50-60 DEG C；
（3）Mixing：By the industrial H after preheating2O2It is passed directly into the heating response kettle A after preheating, and stirring is allowed to mixing
Sealed after even.
（4）Heating：Gained liquid powder mixture agitating and heating, is warming up to 130 DEG C after mixing, and is incubated 36 hours, soak
Between quickly stir, rotating speed is 350-420r/min；
（5）Dry：After insulation terminates, mixed material stir and divulged information, when making that wherein moisture drops to ＜ 1%, stop adding
Heat, continues Stirring, until being cooled to room temperature.
（6）Screening is crushed：Mixed powder 60-300 eye mesh screen screenings after cool drying, big block is crushed again after screening,
Kir modifier material is made in screening again.
Kir modifying agent technical indicator：
| Drop point DEG C（Droplet point） | 132.5℃ |
| Density g/cm3（Density） | 0.98 |
| Acid number mg KOH/g（Acid） | 21.0 |
| Viscosity（150℃） mPa·s（Viscosity ） | 19000 |
| Hardness（25℃）dmm（Hardness） | ＜ 0.5 |
| Granularity mesh（Particle size） | 60 |
| Outward appearance (Appearance) | White powder White powder |
A kind of embodiment 3, preparation technology of novel environment friendly organic rock asphalt modifier, comprises the following steps：
（1）Mixing：Small-molecular-weight, high density polyethylene (HDPE) powder 100kg, catalyst 0.7kg, dispersant 4kg, white oil 3kg is same
When be fitted into oily heating response kettle A, and be uniformly mixed mixture be made.Again by 14kg industry H2O2Load heated sealed kettle B
In.
（2）Preheating：Powder after mixing is carried out tentatively to be heated to 50-60 DEG C；The work in sealing reactor is loaded into simultaneously
Industry H2O2It is preheated to 50-60 DEG C；
（3）Mixing：By the industrial H after preheating2O2It is passed directly into the heating response kettle A after preheating, and stirring is allowed to mixing
Sealed after even.
（4）Heating：Gained liquid powder mixture agitating and heating, is warming up to 135 DEG C after mixing, and is incubated 36 hours, soak
Between quickly stir, rotating speed is 350-420r/min；
（5）Dry：After insulation terminates, mixed material stir and divulged information, when making that wherein moisture drops to ＜ 1%, stop adding
Heat, continues Stirring, until being cooled to room temperature.
（6）Screening is crushed：Mixed powder 60-300 eye mesh screen screenings after cool drying, big block is crushed again after screening,
Kir modifier material is made in screening again.
Kir modifying agent technical indicator：
| Drop point DEG C（Droplet point） | 134.0℃ |
| Density g/cm3（Density） | 0.98 |
| Acid number mg KOH/g（Acid） | 25.0 |
| Viscosity（150℃） mPa·s（Viscosity ） | 17500 |
| Hardness（25℃）dmm（Hardness） | ＜ 0.5 |
| Granularity mesh（Particle size） | 60 |
| Outward appearance (Appearance) | White powder White powder |
A kind of embodiment 4, preparation technology of novel environment friendly organic rock asphalt modifier, comprises the following steps：
（1）Mixing：Small-molecular-weight, high density polyethylene (HDPE) powder 100kg, catalyst 0.8kg, dispersant 5kg, white oil 3kg is same
When be fitted into oily heating response kettle A, and be uniformly mixed mixture be made.Again by 16kg industry H2O2Load heated sealed kettle B
In.
（2）Preheating：Powder after mixing is carried out tentatively to be heated to 50-60 DEG C；The work in sealing reactor is loaded into simultaneously
Industry H2O2It is preheated to 50-60 DEG C；
（3）Mixing：By the industrial H after preheating2O2It is passed directly into the heating response kettle A after preheating, and stirring is allowed to mixing
Sealed after even.
（4）Heating：Gained liquid powder mixture agitating and heating, is warming up to 140 DEG C after mixing, and is incubated 36 hours, soak
Between quickly stir, rotating speed is 350-420r/min；
（5）Dry：After insulation terminates, mixed material stir and divulged information, when making that wherein moisture drops to ＜ 1%, stop adding
Heat, continues Stirring, until being cooled to room temperature.
（6）Screening is crushed：Mixed powder 60-300 eye mesh screen screenings after cool drying, big block is crushed again after screening,
Kir modifier material is made in screening again.
Kir modifying agent technical indicator：
| Drop point DEG C（Droplet point） | 135.5℃ |
| Density g/cm3（Density） | 0.98 |
| Acid number mg KOH/g（Acid） | 27.0 |
| Viscosity（150℃） mPa·s（Viscosity ） | 16800 |
| Hardness（25℃）dmm（Hardness） | ＜ 0.5 |
| Granularity mesh（Particle size） | 60 |
| Outward appearance (Appearance) | White powder White powder |
A kind of embodiment 5, preparation technology of novel environment friendly organic rock asphalt modifier, comprises the following steps：
（1）Mixing：Small-molecular-weight, high density polyethylene (HDPE) powder 100kg, catalyst 0.9kg, dispersant 6kg, white oil 3kg is same
When be fitted into oily heating response kettle A, and be uniformly mixed mixture be made.Again by 18kg industry H2O2Load heated sealed kettle B
In.
（2）Preheating：Powder after mixing is carried out tentatively to be heated to 50-60 DEG C；The work in sealing reactor is loaded into simultaneously
Industry H2O2It is preheated to 50-60 DEG C；
（3）Mixing：By the industrial H after preheating2O2It is passed directly into the heating response kettle A after preheating, and stirring is allowed to mixing
Sealed after even.
（4）Heating：Gained liquid powder mixture agitating and heating, is warming up to 145 DEG C after mixing, and is incubated 36 hours, soak
Between quickly stir, rotating speed is 350-420r/min；
（5）Dry：After insulation terminates, mixed material stir and divulged information, when making that wherein moisture drops to ＜ 1%, stop adding
Heat, continues Stirring, until being cooled to room temperature.
（6）Screening is crushed：Mixed powder 60-300 eye mesh screen screenings after cool drying, big block is crushed again after screening,
Kir modifier material is made in screening again.
Kir modifying agent technical indicator：
| Drop point DEG C（Droplet point） | 137.0℃ |
| Density g/cm3（Density） | 0.98 |
| Acid number mg KOH/g（Acid） | 29.0 |
| Viscosity（150℃） mPa·s（Viscosity ） | 16500 |
| Hardness（25℃）dmm（Hardness） | ＜ 0.5 |
| Granularity mesh（Particle size） | 60 |
| Outward appearance (Appearance) | White powder White powder |
A kind of embodiment 6, preparation technology of novel environment friendly organic rock asphalt modifier, comprises the following steps：
（1）Mixing：Small-molecular-weight, high density polyethylene (HDPE) powder 100kg, catalyst 1.0kg, dispersant 7kg, white oil 3kg is same
When be fitted into oily heating response kettle A, and be uniformly mixed mixture be made.Again by 20kg industry H2O2Load heated sealed kettle B
In.
（2）Preheating：Powder after mixing is carried out tentatively to be heated to 50-60 DEG C；The work in sealing reactor is loaded into simultaneously
Industry H2O2It is preheated to 50-60 DEG C；
（3）Mixing：By the industrial H after preheating2O2It is passed directly into the heating response kettle A after preheating, and stirring is allowed to mixing
Sealed after even.
（4）Heating：Gained liquid powder mixture agitating and heating, is warming up to 145 DEG C after mixing, and is incubated 36 hours, soak
Between quickly stir, rotating speed is 350-420r/min；
（5）Dry：After insulation terminates, mixed material stir and divulged information, when making that wherein moisture drops to ＜ 1%, stop adding
Heat, continues Stirring, until being cooled to room temperature.
（6）Screening is crushed：Mixed powder 60-300 eye mesh screen screenings after cool drying, big block is crushed again after screening,
Kir modifier material is made in screening again.
Kir modifying agent technical indicator：
| Drop point DEG C（Droplet point） | 138.6℃ |
| Density g/cm3（Density） | 0.98 |
| Acid number mg KOH/g（Acid） | 31.0 |
| Viscosity（150℃） mPa·s（Viscosity ） | 16000 |
| Hardness（25℃）dmm（Hardness） | ＜ 0.5 |
| Granularity mesh（Particle size） | 60 |
| Outward appearance (Appearance) | White powder White powder |
A kind of embodiment 7, preparation technology of novel environment friendly organic rock asphalt modifier, comprises the following steps：
（1）Mixing：Small-molecular-weight, high density polyethylene (HDPE) powder 100kg, catalyst 1.1kg, dispersant 8kg, white oil 3kg is same
When be fitted into oily heating response kettle A, and be uniformly mixed mixture be made.Again by 22kg industry H2O2Load heated sealed kettle B
In.
（2）Preheating：Powder after mixing is carried out tentatively to be heated to 50-60 DEG C；The work in sealing reactor is loaded into simultaneously
Industry H2O2It is preheated to 50-60 DEG C；
（3）Mixing：By the industrial H after preheating2O2It is passed directly into the heating response kettle A after preheating, and stirring is allowed to mixing
Sealed after even.
（4）Heating：Gained liquid powder mixture agitating and heating, is warming up to 145 DEG C after mixing, and is incubated 36 hours, soak
Between quickly stir, rotating speed is 350-420r/min；
（5）Dry：After insulation terminates, mixed material stir and divulged information, when making that wherein moisture drops to ＜ 1%, stop adding
Heat, continues Stirring, until being cooled to room temperature.
（6）Screening is crushed：Mixed powder 60-300 eye mesh screen screenings after cool drying, big block is crushed again after screening,
Kir modifier material is made in screening again.
Kir modifying agent technical indicator：
| Drop point DEG C（Droplet point） | 138.9℃ |
| Density g/cm3（Density） | 0.98 |
| Acid number mg KOH/g（Acid） | 32.0 |
| Viscosity（150℃） mPa·s（Viscosity ） | 15800 |
| Hardness（25℃）dmm（Hardness） | ＜ 0.5 |
| Granularity mesh（Particle size） | 60 |
| Outward appearance (Appearance) | White powder White powder |
A kind of embodiment 8, preparation technology of novel environment friendly organic rock asphalt modifier, comprises the following steps：
（1）Mixing：By small-molecular-weight, high density polyethylene (HDPE) powder 100kg, metallocene catalyst 1.2kg, dispersant calcium stearate
9kg, white oil 3kg are fitted into oily heating response kettle A simultaneously, and are uniformly mixed mixture is made.Again by 24kg industry H2O2Dress
Enter in heated sealed kettle B.
（2）Preheating：Powder after mixing is carried out tentatively to be heated to 50-60 DEG C；The work in sealing reactor is loaded into simultaneously
Industry H2O2It is preheated to 50-60 DEG C；
（3）Mixing：By the industrial H after preheating2O2It is passed directly into the heating response kettle A after preheating, and stirring is allowed to mixing
Sealed after even.
（4）Heating：Gained liquid powder mixture agitating and heating, is warming up to 145 DEG C after mixing, and is incubated 36 hours, soak
Between quickly stir, rotating speed is 350-420r/min；
（5）Dry：After insulation terminates, mixed material stir and divulged information, when making that wherein moisture drops to ＜ 1%, stop adding
Heat, continues Stirring, until being cooled to room temperature.
（6）Screening is crushed：Mixed powder 60-300 eye mesh screen screenings after cool drying, big block is crushed again after screening,
Kir modifier material is made in screening again.
Kir modifying agent technical indicator：
| Drop point DEG C（Droplet point） | 139.8℃ |
| Density g/cm3（Density） | 0.98 |
| Acid number mg KOH/g（Acid） | 33.0 |
| Viscosity（150℃） mPa·s（Viscosity ） | 15600 |
| Hardness（25℃）dmm（Hardness） | ＜ 0.5 |
| Granularity mesh（Particle size） | 60 |
| Outward appearance (Appearance) | White powder White powder |
A kind of embodiment 9, preparation technology of novel environment friendly organic rock asphalt modifier, comprises the following steps：
（1）Mixing：By small-molecular-weight, high density polyethylene (HDPE) powder 100kg, catalyst 1.3kg, dispersant calcium stearate 10kg,
White oil 3kg is fitted into oily heating response kettle A simultaneously, and is uniformly mixed mixture is made.Again by 26kg industry H2O2Load close
Seal in heating kettle B.
（2）Preheating：Powder after mixing is carried out tentatively to be heated to 50-60 DEG C；The work in sealing reactor is loaded into simultaneously
Industry H2O2It is preheated to 50-60 DEG C；
（3）Mixing：By the industrial H after preheating2O2It is passed directly into the heating response kettle A after preheating, and stirring is allowed to mixing
Sealed after even.
（4）Heating：Gained liquid powder mixture agitating and heating, is warming up to 145 DEG C after mixing, and is incubated 36 hours, soak
Between quickly stir, rotating speed is 350-420r/min；
（5）Dry：After insulation terminates, mixed material stir and divulged information, when making that wherein moisture drops to ＜ 1%, stop adding
Heat, continues Stirring, until being cooled to room temperature.
（6）Screening is crushed：Mixed powder 60-300 eye mesh screen screenings after cool drying, big block is crushed again after screening,
Kir modifier material is made in screening again.
Kir modifying agent technical indicator：
| Drop point DEG C（Droplet point） | 140.1℃ |
| Density g/cm3（Density） | 0.98 |
| Acid number mg KOH/g（Acid） | 34.2 |
| Viscosity（150℃） mPa·s（Viscosity ） | 15200 |
| Hardness（25℃）dmm（Hardness） | ＜ 0.5 |
| Granularity mesh（Particle size） | 60 |
| Outward appearance (Appearance) | White powder White powder |
A kind of embodiment 10, preparation technology of novel environment friendly organic rock asphalt modifier, comprises the following steps：
（1）Mixing：By small-molecular-weight, high density polyethylene (HDPE) powder 100kg, metallocene catalyst 1.4kg, dispersant calcium stearate
10kg, white oil 3kg are fitted into oily heating response kettle A simultaneously, and are uniformly mixed mixture is made.Again by 28kg industry H2O2
It is fitted into heated sealed kettle B.
（2）Preheating：Powder after mixing is carried out tentatively to be heated to 50-60 DEG C；The work in sealing reactor is loaded into simultaneously
Industry H2O2It is preheated to 50-60 DEG C；
（3）Mixing：By the industrial H after preheating2O2It is passed directly into the heating response kettle A after preheating, and stirring is allowed to mixing
Sealed after even.
（4）Heating：Gained liquid powder mixture agitating and heating, is warming up to 145 DEG C after mixing, and is incubated 36 hours, soak
Between quickly stir, rotating speed is 350-420r/min；
（5）Dry：After insulation terminates, mixed material stir and divulged information, when making that wherein moisture drops to ＜ 1%, stop adding
Heat, continues Stirring, until being cooled to room temperature.
（6）Screening is crushed：Mixed powder 60-300 eye mesh screen screenings after cool drying, big block is crushed again after screening,
Kir modifier material is made in screening again.
Kir modifying agent technical indicator：
| Drop point DEG C（Droplet point） | 140.5℃ |
| Density g/cm3（Density） | 0.98 |
| Acid number mg KOH/g（Acid） | 34.3 |
| Viscosity（150℃） mPa·s（Viscosity ） | 14800 |
| Hardness（25℃）dmm（Hardness） | ＜ 0.5 |
| Granularity mesh（Particle size） | 60 |
| Outward appearance (Appearance) | White powder White powder |
In above example：
Catalyst is metallocene catalyst, and dispersant is that calcium, the stearate purity of zinc are that analysis is pure；Industrial H2O2Purity is
27%；Dispersant is calcium, the stearate of zinc.
" experiment of freeze-thaw split retained strength " that product of the present invention is done is directed to the following is Shandong Research Institute of Communication：
" this evaluate according to《Asphalt Mixture Experiment code》（T0729-2000）In operating procedure, and vacuumized in test specimen
Post package, to ensure that test specimen space is freezed after being full of water.Test specimen diameter 100mm, high 63.5mm, test temperature are 25 DEG C, loading
Speed is 50mm/min.With finder charge maximum value calculation tensile splitting strength, resisted with being subjected to the splitting of test specimen of Frozen-thawed cycled
Tensile strength and the percentage of the ratio of the tensile splitting strength without the test specimen by Frozen-thawed cycled are used as freeze-thaw split tensile strength
Than TSR, to evaluate the water stability of asphalt.”
In formula：RT- tensile splitting strength intensity, MPa；ε T-destruction elongation strain；ST- destruction stiffness modulus, MPa；μ-pool
Pine ratio；PTPeak load when-test specimen is destroyed, N；The height of h-test specimen, mm；Project is evaluated using freeze-thaw split intensity
70# matrix pitches, 70# matrix pitch+RARP additives（Gained kir modifying agent of the invention）Asphalt water resistant damage
Evil performance, the indirect tensile test on frozen-thaw result of two kinds of compounds see the table below
Result above can be seen that：After 70# matrix pitches admixture RARP, the cleavage strength before and after test specimen freeze thawing has bright before relatively filling
Aobvious to improve, TSR values also do not reduce, illustrate that additive does not reduce the anti-water damage property of compound, also reflect, fill RARP
Afterwards, 70# matrix pitches freeze cleavage strength after low temperature freeze thawing and increased, and not by low temperature effect, low temperature resistant effect is obvious.
Analysis of experiments：The ester group and soap base that kir modifying agent wherein contains can be by coupled actions in kir and drip
Stable network structure is formed between green grass or young crops, the performance of bituminous paving can be greatly improved, asphalt interface is formed good bending resistance
Bent and tensile resistance, improves asphalt material bulk strength and extension highway service life.
The new kir modifying agent being made can be obviously improved the compatibility and bond strength of kir and highway asphalt, drop
Low whipping temp, reduces mixing time, strengthens modified effect of the kir for pitch at low temperature.
Kir modifier material is that the uncomfortable phenomenon of the low temperature occurred in asphalt material is entrained in for kir, is to rock
Pitch improves and made up as one kind of asphalt modifier performance so that kir can be fitted in low-temperature condition or big temperature change
Weather is answered, so as to increase the marketing of kir and use.
The above described is only a preferred embodiment of the present invention, being not the limitation for making other forms to the present invention, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
Imitate embodiment.But it is every without departing from technical solution of the present invention content, the technical spirit according to the present invention is made to above example
Any simple modification, equivalent variations and remodeling, still fall within the protection domain of technical solution of the present invention.
Claims (6)
1. a kind of preparation technology of novel environment friendly kir modifying agent, it is characterised in that comprise the following steps：
（1）Mixing：Small-molecular-weight, high density polyethylene (HDPE) powder, catalyst, dispersant, white oil are loaded into oily heating response simultaneously
In kettle A, and it is uniformly mixed mixture is made；
Again by industrial H2O2It is fitted into heated sealed kettle B；
（2）Preheating：Powder after mixing is carried out tentatively to be heated to 50-60 DEG C；The industrial H in sealing reactor is loaded into simultaneously2O2
It is preheated to 50-60 DEG C；
（3）Mixing：By the industrial H after preheating2O2It is passed directly into the heating response kettle A after preheating, and stirring is allowed to well mixed
After seal, obtain liquid powder mixture；
（4）Heating：Gained liquid powder mixture agitating and heating, is warming up to 130-165 DEG C after mixing, and is incubated 36-72 hours, insulation
Period quickly stirs, and rotating speed is 350-420r/min；
（5）Heat preservation and dryness：Soaking time moisture in mixed material is defined when dropping to ＜ 1%, stops heating, continues to rotate
Stirring, until being cooled to room temperature；
（6）Screening is crushed：Mixed powder 60-300 eye mesh screen screenings after cool drying, big block is crushed again after screening, then is sieved
Kir modifying agent is made in inspection.
2. a kind of preparation technology of novel environment friendly organic rock asphalt modifier according to claim 1, it is characterised in that：
Step（1）Middle catalyst is metallocene catalyst, and purity is pure to analyze, and addition is the 0.5- of polyethylene powder quality
1.5%。
3. a kind of preparation technology of novel environment friendly organic rock asphalt modifier according to claim 1, it is characterised in that：Step
Suddenly（1）Middle industrial H2O2Purity is 27%, and addition is the 10-30% of polyethylene powder quality.
4. a kind of preparation technology of novel environment friendly organic rock asphalt modifier according to claim 1, it is characterised in that：Step
Suddenly（1）Middle dispersant is calcium, the stearate of zinc, and addition is the 2-10% of polyethylene powder quality.
5. a kind of preparation technology of novel environment friendly organic rock asphalt modifier according to claim 1, it is characterised in that：In vain
Oily addition is about the 2-10% of polyethylene powder quality.
6. the application of novel environment friendly organic rock asphalt modifier as described in claim 1-4, it is characterised in that：The kir changes
Property agent be used in mixed way with kir, the mass percentage content of kir modifying agent is 0.5-8%；Kir modifier material with
Sand material after pitch, kir base-material or heating is used in mixed way, and consumption is≤4 ‰.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108218296A (en) * | 2018-04-12 | 2018-06-29 | 江苏中路工程技术研究院有限公司 | A kind of close water type asphalt of high-strength light and preparation method thereof |
| CN116947375A (en) * | 2023-07-21 | 2023-10-27 | 宁波东兴沥青制品有限公司 | Anti-rutting asphalt mixture and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106220761A (en) * | 2016-08-29 | 2016-12-14 | 潍坊大耀新材料有限公司 | A kind of with H2o2the process of new asphalt modifier is prepared for raw material |
| CN106336472A (en) * | 2016-08-29 | 2017-01-18 | 潍坊大耀新材料有限公司 | Preparation technology of novel environmentally-friendly asphalt modifier |
-
2017
- 2017-06-27 CN CN201710502489.6A patent/CN107266768A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106220761A (en) * | 2016-08-29 | 2016-12-14 | 潍坊大耀新材料有限公司 | A kind of with H2o2the process of new asphalt modifier is prepared for raw material |
| CN106336472A (en) * | 2016-08-29 | 2017-01-18 | 潍坊大耀新材料有限公司 | Preparation technology of novel environmentally-friendly asphalt modifier |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108218296A (en) * | 2018-04-12 | 2018-06-29 | 江苏中路工程技术研究院有限公司 | A kind of close water type asphalt of high-strength light and preparation method thereof |
| CN108218296B (en) * | 2018-04-12 | 2021-03-16 | 江苏中路工程技术研究院有限公司 | Light high-strength water-tight asphalt mixture and preparation method thereof |
| CN116947375A (en) * | 2023-07-21 | 2023-10-27 | 宁波东兴沥青制品有限公司 | Anti-rutting asphalt mixture and preparation method thereof |
| CN116947375B (en) * | 2023-07-21 | 2024-04-26 | 宁波东兴沥青制品有限公司 | Anti-rutting asphalt mixture and preparation method thereof |
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Application publication date: 20171020 |