CN106009720A - Composite modified asphalt with stable thermal storage performance and preparation method thereof - Google Patents
Composite modified asphalt with stable thermal storage performance and preparation method thereof Download PDFInfo
- Publication number
- CN106009720A CN106009720A CN201610345154.3A CN201610345154A CN106009720A CN 106009720 A CN106009720 A CN 106009720A CN 201610345154 A CN201610345154 A CN 201610345154A CN 106009720 A CN106009720 A CN 106009720A
- Authority
- CN
- China
- Prior art keywords
- modified asphalt
- composite modified
- asphalt
- stable
- raw material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- 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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Road Paving Structures (AREA)
Abstract
The invention relates to a pavement construction material, in particular to composite modified asphalt with stable thermal storage performance and a preparation method thereof. The composite modified asphalt is prepared from the following raw components in percentage by mass: 70 to 97 percent of petroleum asphalt with the needle penetration of 10 to 200, 2 to 25 percent of an anti-aging agent, 0.9 to 4.8 percent of a modifying agent, and 0.1 to 0.2 percent of a stabilizing agent. Through a comparative trial, after the composite modified asphalt prepared by adopting the method provided by the invention is placed for a long time under a high temperature, the product indicators are basically unchanged; the key indicators completely meet the I-D technical requirements of SBS modified asphalt in the specification of JTG F40-2004; the stability of the product in the processes of producing, storing, transporting and using is improved.
Description
Technical field
The present invention relates to pavement construction material, composite modified asphalt that a kind of Modified bitumen is stable and preparation thereof
Method.
Background technology
At present, the modified pitch that pavement construction uses is mainly SBS modified pitch, the Modified bitumen of SBS modified pitch
Stability problem is the most all the problem of puzzlement user, owing to SBS is a kind of high molecular polymerization containing double bond group
Thing, inevitably will aoxidize, the complicated chemical action such as chain rupture under heat with oxygen and mechanical force, substrate simultaneously
Colophonium is also a kind of complex organic compound mixture.The restructuring of compound at high temperature can occur, the thing such as volatilization of light component
Physicochemical reacts, due to by the condition of working condition and construction of the highway environment (as rainy day, microthermal climate can not construct, machinery therefore
Barrier etc.) limit, most of modified pitch inevitably will in finished pot, transport vehicle or building site storage tank heat be when storing one section
Between, in this process, the property indices of modified pitch is all in decay slowly, and the thermmal storage time is the longest, properties
Beacon decay the most severe, the most finally loses the due performance of product.
Summary of the invention
The technical problem to be solved is to provide stable the answering of performance indications under a kind of Long Time Thermal condition of storage
Close modified pitch and preparation method thereof.
Material composition and the mass percent of the composite modified asphalt that the Modified bitumen of the present invention is stable be:
Described age resister includes high wear-resistant carbon black, waste or used plastics, waste old, high density polyethylene (HDPE), high density poly-third
One or several in alkene.
Described modifying agent include solution styrene butadiene rubber, thermoplastic styrene butadiene rubber, along the one in butadiene, butadiene-styrene rubber or
Several.
Described stabilizer be sulfur or benzene intoxicated.
The preparation method of the above-mentioned composite modified asphalt of the present invention comprises the following steps:
Step one: be 10～200 by needle penetration, temperature 170～230 DEG C asphalt by raw materials quality 70～
97% squeezes in the reactor with stirring and shearing lapping device；
Step 2: by age resister by the 2～25% of the raw materials quality reactors adding stirring, shearing milling time is
1h～48h, reaction temperature is 180～230 DEG C；
Step 3: reaction temperature dropped between 160～200 DEG C, adds by raw materials quality 0.9～4.8% modifying agent,
Shear to grind and squeeze into finished product growth tank for one time.
Step 4: grow tank interpolation 0.1～the stabilizer of 0.2% at finished product, stir and make target product in 4-5 hour.
The composite modified asphalt using the inventive method to prepare, tests by contrast, places for a long time under high temperature, and its product refers to
Mark is basically unchanged, and key index fully meets SBS modified pitch I-D technology requirement in JTG F40-2004 specification, improves product
Product producing, store, transport, use during the more stable property of performance.
Detailed description of the invention
Below in conjunction with specific embodiment, it is further elucidated with the present invention, it should be understood that these embodiments are merely to illustrate the present invention
Rather than restriction the scope of the present invention, after having read the present invention, the those skilled in the art's various equivalences to the present invention
The amendment of form all falls within the application claims limited range.
Comparative example one:
The existing conventional fabrication process of SBS modified pitch, the raw material of employing includes: raw material one is Korea S's import double dragon board drip
Green grass or young crops, needle penetration is respectively 70 (unit is 1/10mm)；Raw material two is middle oil Dushanzi SBS T6302H, raw material one, raw material two
In mass ratio 95.9: 4, raw material three is stabilizer (sulfur), and its addition is the 0.1% of total amount.
Existing conventional fabrication process comprises the following steps:
Step one: raw material one is heated to 175～185 DEG C, is measured standby respectively by each raw material by proportioning；
Step 2: the raw material one after heating is driven into reactor, opens stirring, adds metered amount in reactor simultaneously
Raw material two, be ground shearing one time simultaneously, be transported to grow holding vessel open stirring；Whole process temperature controls 170
～180 DEG C；
Step 3: uniformly add the raw material three of metered amount, stirring reaction 5h in growing holding vessel, develop into finished product, take
Sample is analyzed, and 4～5h go out result of laboratory test.
Embodiment one:
The composite modified asphalt preparation technology that Long Time Thermal storge quality is constant, the raw material of employing includes: raw material one is Korea Spro
State's import double dragon board Colophonium, needle penetration is respectively 70 (unit is 1/10mm), and its addition is the 77% of total amount；Raw material two is high
Abrasion resistant carbon black and scrap rubber 1:1, its addition is the 18.9% of total amount；Raw material three is the solution styrene butadiene rubber of unit of Ningbo section, its
Addition is the 4% of total amount；Raw material four is stabilizer (sulfur), and its addition is the 0.1% of total amount.
Concrete preparation technology comprises the following steps:
Step one: temperature squeezed in proportion in 1 reactor at the raw material one of 190～200 DEG C, opens 2 agitators, will be fixed
The raw material two of amount adds 1 reactor；
Step 2: opening 3 colloid mills or cutter is circulated shearing and grinds, reaction temperature controls at 190～230 DEG C
Between；Process 135 DEG C of brookfield viscosities of detection, until viscosity value is constant, stop 3 colloid mills or cutter；
Step 3: dropped to by 1 temperature of reaction kettle between 160～200 DEG C, adds quantitative raw material three, opens 3 colloid mills or cut
Machine of cutting is sheared to grind and is squeezed into finished product growth tank for one time；
Step 4: grow tank at finished product and add quantitative raw material four, stir and make target product in 4-5 hour.
Product result of laboratory test prepared by comparative example one and embodiment one is compared (table one), it is seen then that comparative example product
Placing the different time stage continuously in 163 DEG C of baking ovens, test data occurs along with the prolongation of high temperature standing time, product index
Decay in various degree, after 36 hours, even occurs that key index decays to can not meet in JTG F40-2004 specification
About SBS modified pitch I-D technology requirement.Embodiment product is placed on different time stage, product in 163 DEG C of baking ovens continuously
Index is basically unchanged, and key index fully meets SBS modified pitch I-D technology requirement in JTG F40-2004 specification, therefore real
Execute example product from producing, store, transport, use process all can be more stable more practical.
Table one:
Comparative example two:
The existing conventional fabrication process of SBS modified pitch, the raw material of employing includes: raw material one is middle oil the Kunlun board Colophonium,
Needle penetration is respectively 90 (unit is 1/10mm)；Raw material two is middle oil Dushanzi SBS T6302H, and raw material one, raw material two are by matter
Amount ratio 95.9: 4, raw material three is stabilizer (benzene is intoxicated), and its addition is the 0.1% of total amount.
Existing conventional fabrication process comprises the following steps:
Step one: raw material one is heated to 175～185 DEG C, is measured standby respectively by each raw material by proportioning；
Step 2: the raw material one after heating is driven into reactor, opens stirring, adds metered amount in reactor simultaneously
Raw material two, be ground shearing one time simultaneously, be transported to grow holding vessel open stirring；Whole process temperature controls 170
～180 DEG C；
Step 3: uniformly add the raw material three of metered amount, stirring reaction 5h in growing holding vessel, develop into finished product, take
Sample is analyzed, and 4～5h go out result of laboratory test.
Embodiment two:
The composite modified asphalt preparation technology that Long Time Thermal storge quality is constant, the raw material of employing includes: during raw material one is
Oil the Kunlun board Colophonium, needle penetration is respectively 90 (unit is 1/10mm), and its addition is the 71% of total amount；Raw material two is high resistance to
Mill white carbon black: scrap rubber: high density polyethylene (HDPE)=1:1:1, its addition is the 24.9% of total amount；Raw material three is Ningbo unit of section solution
Butadiene-styrene rubber, its addition is the 4% of total amount；Raw material four is stabilizer (benzene is intoxicated), and its addition is the 0.1% of total amount.
Concrete preparation technology comprises the following steps:
Step one: temperature squeezed in proportion in 1 reactor at the raw material one of 190～200 DEG C, opens 2 agitators, will be fixed
The raw material two of amount adds 1 reactor；
Step 2: opening 3 colloid mills or cutter is circulated shearing and grinds, reaction temperature controls at 190～230 DEG C
Between；Process 135 DEG C of brookfield viscosities of detection, until viscosity value is constant, stop 3 colloid mills or cutter；
Step 3: dropped to by 1 temperature of reaction kettle between 160～200 DEG C, adds quantitative raw material three, opens 3 colloid mills or cut
Machine of cutting is sheared to grind and is squeezed into finished product growth tank for one time；
Step 4: grow tank at finished product and add quantitative raw material four, stir and make target product in 4-5 hour.
Product result of laboratory test prepared by comparative example one and embodiment one is compared (table two), it is seen then that comparative example product
Placing the different time stage continuously in 163 DEG C of baking ovens, test data occurs along with the prolongation of high temperature standing time, product index
Decay in various degree, after 48 hours, even occurs that key index decays to can not meet in JTG F40-2004 specification
About SBS modified pitch I-C technology requirement.Embodiment product is placed on the different time stage in 163 DEG C of baking ovens continuously, produces
Product index is basically unchanged, and key index fully meets SBS modified pitch I-C technology requirement in JTG F40-2004 specification, therefore
The product of embodiment model from producing, store, transport, use process all can be more stable more practical.
Table two:
Claims (6)
1. the composite modified asphalt that Modified bitumen is stable, is characterized in that: its material composition and mass percent be:
Needle penetration is the asphalt 70-97% of 10～200；
Age resister 2-25%；
Modifying agent 0.9-4.8%；
Stabilizer 0.1-0.2%.
The composite modified asphalt that Modified bitumen the most according to claim 1 is stable, is characterized in that: described age resister bag
Include one or several in high wear-resistant carbon black, waste or used plastics, waste old, high density polyethylene (HDPE), high density poly propylene.
The composite modified asphalt that Modified bitumen the most according to claim 1 is stable, is characterized in that: described modifying agent includes
One or several in solution styrene butadiene rubber, thermoplastic styrene butadiene rubber, suitable butadiene, butadiene-styrene rubber.
The composite modified asphalt that Modified bitumen the most according to claim 1 is stable, is characterized in that: described stabilizer is sulfur
Sulphur or benzene are intoxicated.
5. a preparation method for the composite modified asphalt that Modified bitumen is stable, is characterized in that: comprise the following steps,
Step one: be 10～200 by needle penetration, temperature 170～230 DEG C asphalt by raw materials quality 70～97% dozen
Enter in the reactor with stirring and shearing lapping device；
Step 2: by age resister by raw materials quality 2～25% add stirring reactors in, shear milling time be 1h～
48h, reaction temperature is 180～230 DEG C；
Step 3: reaction temperature dropped between 160～200 DEG C, adds by raw materials quality 0.9～4.8% modifying agent, shears
Squeeze into finished product after grinding and grow tank.
6. step 4: grow tank interpolation 0.1～the stabilizer of 0.2% at finished product, stir and make target product in 4-5 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610345154.3A CN106009720A (en) | 2016-05-23 | 2016-05-23 | Composite modified asphalt with stable thermal storage performance and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610345154.3A CN106009720A (en) | 2016-05-23 | 2016-05-23 | Composite modified asphalt with stable thermal storage performance and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106009720A true CN106009720A (en) | 2016-10-12 |
Family
ID=57096696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610345154.3A Pending CN106009720A (en) | 2016-05-23 | 2016-05-23 | Composite modified asphalt with stable thermal storage performance and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106009720A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1417262A (en) * | 2001-10-30 | 2003-05-14 | 中国石油化工股份有限公司 | Stable polymer-asphalt comosition |
| CN1609165A (en) * | 2003-10-24 | 2005-04-27 | 中国石油化工股份有限公司 | Waste rubber powder modified asphalt and its prepn process |
| CN104830076A (en) * | 2015-04-15 | 2015-08-12 | 江阴市宝利沥青新材料有限公司 | Method for preparing rubber waste cracking converted modified asphalt |
-
2016
- 2016-05-23 CN CN201610345154.3A patent/CN106009720A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1417262A (en) * | 2001-10-30 | 2003-05-14 | 中国石油化工股份有限公司 | Stable polymer-asphalt comosition |
| CN1609165A (en) * | 2003-10-24 | 2005-04-27 | 中国石油化工股份有限公司 | Waste rubber powder modified asphalt and its prepn process |
| CN104830076A (en) * | 2015-04-15 | 2015-08-12 | 江阴市宝利沥青新材料有限公司 | Method for preparing rubber waste cracking converted modified asphalt |
Non-Patent Citations (1)
| Title |
|---|
| 王仕峰等: "高温贮存稳定的SBR/炭黑复合改性沥青", 《2002全国高分子材料工程应用研讨会论文集》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Alghrafy et al. | Rheological properties and aging performance of sulfur extended asphalt modified with recycled polyethylene waste | |
| Duarte et al. | Asphalt concrete mixtures modified with polymeric waste by the wet and dry processes: A literature review | |
| Nizamuddin et al. | Sustainable polymers from recycled waste plastics and their virgin counterparts as bitumen modifiers: A comprehensive review | |
| Garcı́a-Morales et al. | Viscous properties and microstructure of recycled eva modified bitumen | |
| Gonzalez et al. | Rheology and stability of bitumen/EVA blends | |
| Zhu et al. | Polymer modification of bitumen: Advances and challenges | |
| CN101792608B (en) | Rubber asphalt and preparation method thereof | |
| CN100567399C (en) | A kind of rubber powder modified asphalt and working method thereof | |
| DE69628553T2 (en) | ACID-CONTAINED POLYMER-MODIFIED ASPHALT COMPOSITIONS AND THEIR PRODUCTION | |
| AU2014231764B2 (en) | Modified toner based additive for asphalt-based compositions | |
| Polacco et al. | Vulcanization accelerators as alternative to elemental sulfur to produce storage stable SBS modified asphalts | |
| JPH07500141A (en) | Asphalt composition and its manufacturing method | |
| CN108473773B (en) | Modified asphalt using epoxide-containing polymers | |
| CN101613533A (en) | Polymer chemically-modified asphalt composition of high temperature storage stable and preparation method thereof | |
| US6802897B1 (en) | Biodiesel sulfur slurry | |
| Liang et al. | Extruded tire crumb-rubber recycled polyethylene melt blend as asphalt composite additive for enhancing the performance of binder | |
| US7608650B2 (en) | Bitumen/rubber compositions crosslinked with polythiomorpholines, polysulfides and/or mercaptobenzimidazole | |
| CN107739518A (en) | A kind of cast asphalt concrete modified pitch and preparation method thereof | |
| Farahani et al. | Rheology investigation of waste LDPE and crumb rubber modified bitumen | |
| CN107987540A (en) | A kind of composite modified asphalt of rubber powder and SBS modified pitch and preparation method thereof | |
| Geçkil et al. | Physical, rheological and microstructural properties of waste LDPE and TEOA modified bitumens | |
| CN106009720A (en) | Composite modified asphalt with stable thermal storage performance and preparation method thereof | |
| US20050143497A1 (en) | Using excess levels of metal salts to improve properties when incorporating polymers in asphalt | |
| CN105713350B (en) | It is a kind of to be used to improve age resister of road asphalt ageing resistace and preparation method thereof | |
| CN108976826A (en) | A kind of asphalt surface hot reproduction composite regenerant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161012 |
|
| RJ01 | Rejection of invention patent application after publication |