CN107200979B - A kind of method of modifying of rubber asphalt stabilizer and rubber asphalt - Google Patents
A kind of method of modifying of rubber asphalt stabilizer and rubber asphalt Download PDFInfo
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- CN107200979B CN107200979B CN201710624458.8A CN201710624458A CN107200979B CN 107200979 B CN107200979 B CN 107200979B CN 201710624458 A CN201710624458 A CN 201710624458A CN 107200979 B CN107200979 B CN 107200979B
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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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
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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
- C08K3/34—Silicon-containing 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
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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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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- Chemical Kinetics & Catalysis (AREA)
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- Organic Chemistry (AREA)
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- Structural Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Road Paving Structures (AREA)
Abstract
The invention belongs to Rubber-Asphalt Pavement field of material technology, disclose the method for modifying of a kind of rubber asphalt stabilizer and rubber asphalt, the rubber asphalt stabilizer, is made of the raw material components of following parts by weight: 15-25 parts of linoleic acid sodium, 10-20 parts of Sodium Polyacrylate, 10-20 parts of sodium metasilicate and 10-20 parts of sodium gluconate.The present invention increases the steric hindrance of rubber modified asphalt each group bulk-breaking with thickening effect with the raw material of linoleic acid sodium, Sodium Polyacrylate, sodium metasilicate and sodium gluconate rubber asphalt stabilizer for the first time, increases dispersion degree and stability of the rubber powder in pitch.
Description
Technical field
The invention belongs to Rubber-Asphalt Pavement field of material technology, and in particular to a kind of rubber asphalt stabilizer and rubber
The method of modifying of pitch.
Background technique
Rubber asphalt is a kind of novel high-quality composite material, is by matrix pitch and rubber powder of waste tire and additional
Under the collective effect of agent, rubber powder by absorbing a variety of organic matters such as resin, hydro carbons in pitch, by a series of physics and
Chemical change, has taken into account the stickiness, toughness, elasticity of rubber and pitch, to improve the pavement performance of rubber asphalt, another party
Waste tire has been used in the rubber asphalt preparation process of face, has reduced environmental pollution, and can effectively reduce asphalt pavement material
Cost, therefore its prospect of the application is considerable.
Have the following characteristics that (1) adhesion is strong using the road surface that rubber asphalt is laid with, softening point improves, high temperature resistant, improves
The thermal stability on road surface makes moderate progress to phenomena such as pavement track of summer driving；(2) water resistant infringement ability is strong, extends road
Use the service life；(3) low temperature resistant, the low-temperature ductility of pitch can be improved in the addition of rubber powder, increases the flexibility of pitch；(4) it can reduce
Noise pollution, (5) can increase the grasp property on vehicle tyre and road surface, improve driving safety.
However in the prior art, the dispersion performance in rubber asphalt production process between each material is poor, and rubber is caused to drip
Green stability is poor, influences product quality.
Summary of the invention
The method of modifying of a kind of rubber asphalt stabilizer and rubber asphalt provided by the invention solves existing rubber drip
The poor problem of dispersion performance between each material in green production technology, to improve the storage stability of rubber asphalt, high temperature resistant
Performance, so that product quality is integrally promoted.
The first purpose of the invention is to provide a kind of rubber asphalt stabilizers, by the raw material components system of following parts by weight
At: 15-25 parts of linoleic acid sodium, 10-20 parts of Sodium Polyacrylate, 10-20 parts of sodium metasilicate and 10-20 parts of sodium gluconate.
Preferably, above-mentioned rubber asphalt stabilizer, is made of the raw material components of following parts by weight: 20 parts of linoleic acid sodium,
15 parts of Sodium Polyacrylate, 15 parts of sodium metasilicate and 15 parts of sodium gluconate.
The above-mentioned rubber asphalt side of stabilizer rubber modified bitumen is utilized a second object of the present invention is to provide a kind of
Method is specifically implemented according to the following steps:
S1 weighs each component by following parts by weight: 70-90 parts of pitch, 15-20 parts of rubber powder, 1-2 parts of stabilizer；
Wherein the stabilizer is mixed by the raw material components of following parts by weight: 15-25 parts of linoleic acid sodium, polyacrylic acid
10-20 parts of sodium, 10-20 parts of sodium metasilicate and 10-20 parts of sodium gluconate；
The weighed rubber powder of S1 and 40 DEG C of the stabilizer of half quality are uniformly mixed, obtain rubber powder mixture by S2；
S3, the temperature that reaction kettle is arranged is 130-140 DEG C, and the weighed pitch of S1 and the other half quality are added into reaction kettle
Stabilizer, carry out for the first time stir and evenly mix, reaction kettle is then warming up to 150-160 DEG C, the rubber powder mixture of S2 is added,
It is stirred and evenly mixed for the second time, obtains rubber modified bitumen.
Preferably, it using the above-mentioned rubber asphalt method of stabilizer rubber modified bitumen, is stirred and evenly mixed for the first time in S3
Time be 1h, speed of agitator 220rmp/min；The time stirred and evenly mixed for the second time is 1-2h, speed of agitator 220rmp/min.
Compared with prior art, the method for modifying of rubber asphalt stabilizer of the invention and rubber asphalt has with following
Beneficial effect:
(1) present invention is for the first time using linoleic acid sodium, Sodium Polyacrylate, sodium metasilicate and sodium gluconate as rubber asphalt with steady
Determine the raw material of agent, there is thickening effect, increase the steric hindrance of rubber modified asphalt each group bulk-breaking, increases rubber powder in pitch
In dispersion degree and stability.The rubber modified bitumen prepared does not occur segregation phenomenon after 165 DEG C, 48h-60h, stablizes
Property is good；And 150 DEG C, 200 DEG C, 250 DEG C are placed 1h respectively, without softening or the phenomenon that deformation；By the modification rubber after solidification
It is still good that glue pitch is soaked in water rubber modified bitumen waterproof performance after 10d.
(2) comparative test shows individually using linoleic acid sodium, Sodium Polyacrylate, sodium metasilicate or sodium gluconate as surely
Determine agent, the effect of more above-mentioned four component mixture of effect is poor；The stability of stabilizer is added at one time when modified to rubber asphalt
Effect is poorer than the effect that stabilizer is added in two steps.
(3) stabilizer low in raw material price, nontoxicity that the present invention uses, the method for modifying of rubber asphalt is simple and easy,
It is suitable for large-scale promotion.
Specific embodiment
The present invention is described in detail combined with specific embodiments below, but should not be construed as limitation of the invention.It is following
The test method of actual conditions is not specified in embodiment, operates usually according to normal condition, due to not being related to inventive point, thus it is not right
Its step is described in detail.
The method of modifying of of the invention a kind of rubber asphalt stabilizer and rubber asphalt, including following embodiment:
Embodiment 1
A kind of rubber asphalt stabilizer, is made of the raw material components of following parts by weight: 20 parts of linoleic acid sodium, polyacrylic acid
15 parts of sodium, 15 parts of sodium metasilicate and 15 parts of sodium gluconate, utilize the rubber asphalt side of stabilizer rubber modified bitumen
Method is specifically implemented according to the following steps:
S1 weighs each component by following parts by weight: 80 parts of pitch, 18 parts of rubber powder, 1 part of stabilizer；
Wherein the stabilizer is mixed by the raw material components of following parts by weight: 20 parts of linoleic acid sodium, Sodium Polyacrylate
15 parts, 15 parts of sodium metasilicate and 15 parts of sodium gluconate；
S2, by the weighed rubber powder of S1 (rubber powder is made using waste tire as raw material of conventional method) and half matter
40 DEG C of stabilizer of amount are uniformly mixed, and obtain rubber powder mixture；
S3, the temperature that reaction kettle is arranged is 130 DEG C, and the steady of the weighed pitch of S1 and the other half quality is added into reaction kettle
Determine agent, stir and evenly mix for the first time, the time stirred and evenly mixed for the first time is 1h, speed of agitator 220rmp/min, then will be anti-
It answers kettle to be warming up to 150 DEG C, the rubber powder mixture of S2 is added, is stirred and evenly mixed for the second time, the time stirred and evenly mixed for the second time
Rubber modified bitumen is obtained for 1.5h, speed of agitator 220rmp/min.
Embodiment 2
A kind of rubber asphalt stabilizer, is made of the raw material components of following parts by weight: 15 parts of linoleic acid sodium, polyacrylic acid
20 parts of sodium, 10 parts of sodium metasilicate and 20 parts of sodium gluconate, utilize the rubber asphalt side of stabilizer rubber modified bitumen
Method is specifically implemented according to the following steps:
S1 weighs each component by following parts by weight: 70 parts of pitch, 20 parts of rubber powder, 2 parts of stabilizer；
Wherein the stabilizer is mixed by the raw material components of following parts by weight: 15 parts of linoleic acid sodium, Sodium Polyacrylate
20 parts, 10 parts of sodium metasilicate and 20 parts of sodium gluconate；
S2, by the weighed rubber powder of S1 (rubber powder is made using waste tire as raw material of conventional method) and half matter
40 DEG C of stabilizer of amount are uniformly mixed, and obtain rubber powder mixture；
S3, the temperature that reaction kettle is arranged is 135 DEG C, and the steady of the weighed pitch of S1 and the other half quality is added into reaction kettle
Determine agent, stir and evenly mix for the first time, the time stirred and evenly mixed for the first time is 1h, and reaction kettle is then warming up to 155 DEG C, is added
The rubber powder mixture of S2, is stirred and evenly mixed for the second time, and the time stirred and evenly mixed for the second time is 2h, obtains modified rubber drip
It is green.
Embodiment 3
A kind of rubber asphalt stabilizer, is made of the raw material components of following parts by weight: 25 parts of linoleic acid sodium, polyacrylic acid
10 parts of sodium, 20 parts of sodium metasilicate and 10 parts of sodium gluconate, utilize the rubber asphalt side of stabilizer rubber modified bitumen
Method is specifically implemented according to the following steps:
S1 weighs each component by following parts by weight: 90 parts of pitch, 15 parts of rubber powder, 1.5 parts of stabilizer；
Wherein the stabilizer is mixed by the raw material components of following parts by weight: 25 parts of linoleic acid sodium, Sodium Polyacrylate
10 parts, 20 parts of sodium metasilicate and 10 parts of sodium gluconate；
S2, by the weighed rubber powder of S1 (rubber powder is made using waste tire as raw material of conventional method) and half matter
40 DEG C of stabilizer of amount are uniformly mixed, and obtain rubber powder mixture；
S3, the temperature that reaction kettle is arranged is 140 DEG C, and the steady of the weighed pitch of S1 and the other half quality is added into reaction kettle
Determine agent, stir and evenly mix for the first time, the time stirred and evenly mixed for the first time is 1h, speed of agitator 220rmp/min, then will be anti-
It answers kettle to be warming up to 160 DEG C, the rubber powder mixture of S2 is added, is stirred and evenly mixed for the second time, the time stirred and evenly mixed for the second time
Rubber modified bitumen is obtained for 1h, speed of agitator 220rmp/min.
It should be noted that needing if the mesh number of each component raw material is greater than 200 mesh in above-described embodiment with ball mill ball
It is milled to mesh number≤200 mesh.
One, high temperature resistant is tested
The embodiment 1-3 rubber modified bitumen being prepared is placed under the conditions of 50 DEG C, 150 DEG C, 200 DEG C, 250 DEG C respectively
1h is placed, the deformation and softening situation of rubber modified bitumen are observed, the results showed that, 150 DEG C, 200 DEG C, 250 DEG C of embodiment 1-3
Without softening or the phenomenon that deformation.
Two, stability experiment
According to the method in existing " highway engineering pitch and Asphalt Mixture Experiment regulation " (JTG E20-2011), utilize
The rubber modified bitumen progress stability experiment that isolation pipe prepare embodiment 1-3,165 DEG C, do not isolate after 48h-60h
Phenomenon illustrates that the rubber modified bitumen of embodiment 1-3 preparation has good stability.
Three, waterproof test
The embodiment 1-3 rubber modified bitumen prepared is laid to plate, is immersed in water after its solidification, at room temperature
5d, 10d are impregnated respectively, and asphalt pavement material is pressed after expiring and has seen whether that infiltration phenomenon generates, the results showed that is implemented after 10d
For the rubber modified bitumen of example 1-3 without infiltration phenomenon, waterproof performance is good.
Four, comparative test
In order to verify linoleic acid sodium, Sodium Polyacrylate, sodium metasilicate and the effect of sodium gluconate, we have been configured examination
Group one, test group two, test group three, test group four, test group five are tested, comparative test has been carried out.
The stabilizer that test group one uses is linoleic acid sodium, specific rubber modified bitumen according to the following steps:
S1 weighs each component by following parts by weight: 80 parts of pitch, 18 parts of rubber powder, 1 part of stabilizer；
The weighed rubber powder of S1 and 40 DEG C of the stabilizer of half quality are uniformly mixed, obtain rubber powder mixture by S2；
S3, the temperature that reaction kettle is arranged is 130 DEG C, and the steady of the weighed pitch of S1 and the other half quality is added into reaction kettle
Determine agent, stir and evenly mix for the first time, the time stirred and evenly mixed for the first time is 1h, speed of agitator 220rmp/min, then will be anti-
It answers kettle to be warming up to 150 DEG C, the rubber powder mixture of S2 is added, is stirred and evenly mixed for the second time, the time stirred and evenly mixed for the second time
Rubber modified bitumen is obtained for 1.5h, speed of agitator 220rmp/min.
The stabilizer that test group two uses for Sodium Polyacrylate, only will with one group of test by the method for rubber modified bitumen
Stabilizer changes into Sodium Polyacrylate.
For sodium metasilicate, the method for rubber modified bitumen will only be stablized the stabilizer that test group three uses with one group of test
Sodium metasilicate is changed into agent.
The stabilizer that test group four uses for sodium gluconate, only will with one group of test by the method for rubber modified bitumen
Stabilizer changes into sodium gluconate.
Test group five prepares raw material with embodiment 1, and rubber asphalt modifying process is as follows:
S1 weighs each component by following parts by weight: 80 parts of pitch, 18 parts of rubber powder, 1 part of stabilizer；The wherein stabilization
Agent is mixed by the raw material components of following parts by weight: 20 parts of linoleic acid sodium, 15 parts of Sodium Polyacrylate, 15 parts of sodium metasilicate and grape
15 parts of sodium saccharate；
S2, the temperature that reaction kettle is arranged is 130 DEG C, and the weighed pitch of S1 and stabilizer are then added into reaction kettle, into
Row stirs and evenly mixs for the first time, and the time stirred and evenly mixed for the first time is 1h, then speed of agitator 220rmp/min heats up reaction kettle
To 150 DEG C, weighed rubber powder is added, is stirred and evenly mixed for the second time, the time stirred and evenly mixed for the second time is 1.5h, and stirring turns
Fast 220rmp/min, obtains rubber modified bitumen.
As a control group with example 1 group.
According to the method in existing " highway engineering pitch and Asphalt Mixture Experiment regulation " (JTG E20-2011), utilize
Isolation pipe carries out stability experiment to rubber modified bitumen prepared by embodiment 1-3, observes segregation phenomenon, the results are shown in Table 1.
Table 1 the result shows that, individually using linoleic acid sodium, Sodium Polyacrylate, sodium metasilicate or sodium gluconate as stabilizer, effect is more real
Apply 1 group of example it is poor.Test group five is added at one time stabilizer to rubber asphalt than 1 liang of embodiment step of stabilizing effect when modified adds
The effect for entering stabilizer is poor.
1 segregation phenomenon of table observes result
| The time is isolated under the conditions of 165 DEG C | The time is isolated under the conditions of 168 DEG C | |
| Test group one | 40.5h | 38.0h |
| Test group two | 42.2h | 40.1h |
| Test group three | 30.6h | 27.0h |
| Test group four | 38.5h | 35.3h |
| Test group five | 44.9h | 42.5h |
| Example 1 group | 62.0h | 60.8h |
It should be noted that involved in claims of the present invention when numberical range, it is thus understood that each numberical range
Any one numerical value can be selected between two endpoints and two endpoints, due to step method and the embodiment 1-3 phase of use
Together, it repeats in order to prevent, the present invention describes preferred embodiment 1-3 and its effect, but those skilled in the art once obtain
Cicada basic creative concept, then additional changes and modifications may be made to these embodiments.So appended claims are intended to
It is construed to include preferred embodiment and all change and modification for falling into the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (4)
1. a kind of rubber asphalt stabilizer, which is characterized in that be made of the raw material components of following parts by weight: linoleic acid sodium 15-
25 parts, 10-20 parts of Sodium Polyacrylate, 10-20 parts of sodium metasilicate and 10-20 parts of sodium gluconate.
2. rubber asphalt stabilizer according to claim 1, which is characterized in that by the raw material components system of following parts by weight
At: 20 parts of linoleic acid sodium, 15 parts of Sodium Polyacrylate, 15 parts of sodium metasilicate and 15 parts of sodium gluconate.
3. a kind of utilize the rubber asphalt described in claim 1 method of stabilizer rubber modified bitumen, which is characterized in that tool
Body follows the steps below to implement:
S1 weighs each component by following parts by weight: 70-90 parts of pitch, 15-20 parts of rubber powder, 1-2 parts of stabilizer；The stabilization
Agent is mixed by each raw material component described in claim 1；
The weighed rubber powder of S1 and 40 DEG C of the stabilizer of half quality are uniformly mixed, obtain rubber powder mixture by S2；
S3, the temperature that reaction kettle is arranged is 130-140 DEG C, and the steady of the weighed pitch of S1 and the other half quality is added into reaction kettle
Determine agent, stir and evenly mix for the first time, reaction kettle is then warming up to 150-160 DEG C, the rubber powder mixture of S2 is added, carry out
It stirs and evenly mixs for the second time, obtains rubber modified bitumen.
4. according to claim 3 utilize the rubber asphalt method of stabilizer rubber modified bitumen, which is characterized in that S3
The time that middle first time stirs and evenly mixs is 1h, speed of agitator 220rmp/min；The time stirred and evenly mixed for the second time is 1-2h, stirring
Revolving speed 220rmp/min.
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| CN201710624458.8A CN107200979B (en) | 2017-07-27 | 2017-07-27 | A kind of method of modifying of rubber asphalt stabilizer and rubber asphalt |
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| CN201710624458.8A CN107200979B (en) | 2017-07-27 | 2017-07-27 | A kind of method of modifying of rubber asphalt stabilizer and rubber asphalt |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107974094A (en) * | 2017-12-23 | 2018-05-01 | 惠州大亚湾市政基础设施有限公司 | A kind of organic warm-mixed asphalt modifying agent |
| CN109320990A (en) * | 2018-11-29 | 2019-02-12 | 晋江凯基高分子材料有限公司 | A kind of stabilizer of synthetic rubber and preparation method thereof |
| CN112960941B (en) * | 2021-03-19 | 2022-08-26 | 长安大学 | Warm-mixed recycled asphalt mixture, and modified preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85106319A (en) * | 1985-08-06 | 1987-02-18 | 兵器工业部第五三研究所 | A kind of rubber modified pitch emulsion and manufacturing process thereof |
| CN104774592A (en) * | 2015-04-10 | 2015-07-15 | 常州履信新材料科技有限公司 | Slow-release antifreezing material for asphalt pavements and preparation method thereof |
| CN106118100A (en) * | 2016-07-31 | 2016-11-16 | 山西省交通科学研究院 | A kind of rubber asphalt stabilizer and the method utilizing its stable modification rubber asphalt |
| CN106700578A (en) * | 2017-01-13 | 2017-05-24 | 上海化工研究院有限公司 | High-content and high-elasticity special modifier for asphalt, and preparation method thereof |
-
2017
- 2017-07-27 CN CN201710624458.8A patent/CN107200979B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85106319A (en) * | 1985-08-06 | 1987-02-18 | 兵器工业部第五三研究所 | A kind of rubber modified pitch emulsion and manufacturing process thereof |
| CN104774592A (en) * | 2015-04-10 | 2015-07-15 | 常州履信新材料科技有限公司 | Slow-release antifreezing material for asphalt pavements and preparation method thereof |
| CN106118100A (en) * | 2016-07-31 | 2016-11-16 | 山西省交通科学研究院 | A kind of rubber asphalt stabilizer and the method utilizing its stable modification rubber asphalt |
| CN106700578A (en) * | 2017-01-13 | 2017-05-24 | 上海化工研究院有限公司 | High-content and high-elasticity special modifier for asphalt, and preparation method thereof |
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Effective date of registration: 20230307 Address after: 276800 Hushan Town Industrial Park, Lanshan District, Rizhao City, Shandong Province Patentee after: Rizhao Keshijia Asphalt Co.,Ltd. Address before: 710064 middle section of south 2nd Ring Road, Yanta District, Xi'an City, Shaanxi Province Patentee before: CHANG'AN University |