CN102585526A - High-viscosity asphalt and preparation method thereof - Google Patents
High-viscosity asphalt and preparation method thereof Download PDFInfo
- Publication number
- CN102585526A CN102585526A CN2012100134702A CN201210013470A CN102585526A CN 102585526 A CN102585526 A CN 102585526A CN 2012100134702 A CN2012100134702 A CN 2012100134702A CN 201210013470 A CN201210013470 A CN 201210013470A CN 102585526 A CN102585526 A CN 102585526A
- Authority
- CN
- China
- Prior art keywords
- maleic anhydride
- high viscosity
- asphalt
- viscosity
- pitch
- 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
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Working-Up Tar And Pitch (AREA)
Abstract
The invention discloses high-viscosity asphalt and a preparation method thereof. The high-viscosity asphalt is prepared from base asphalt, polyethylene grafted maleic anhydride, viscosity-increasing resin, plasticizer, waste plastic, a dispersant and a stabilizer by high-temperature shearing in a shearing machine, wherein the use amounts of polyethylene grafted maleic anhydride, the viscosity-increasing resin, the plasticizer, the waste plastic, the dispersant and the stabilizer are 5-10%, 1-10%, 1-2%, 0.5-1%, 0.1-1% and 0.1-1% of the mass of asphalt respectively. The high-viscosity asphalt disclosed by the invention has low cost, high viscosity and good stability, is convenient for storage, is usually used for high-temperature heavy-traffic asphalt pavement, and has the effects of resisting tracking, resisting aging, improving fatigue performance and the like.
Description
Technical field
The present invention relates to a kind of pitch; Particularly relate to a kind of high viscosity pitch; The invention still further relates to this high viscosity bituminous preparation method, the compound method that relates to a kind of graftomer cheaply particularly with and prepare high viscosity bituminous method as the main properties-correcting agent of bituminous.
Background technology
In the high grade pavement structure, advantage such as bituminous pavement is good with its continuity, driving is steadily comfortable, shock resistance is good, noise is little and easy to maintenance and being widely used.Eleventh Five-Year Plan period, the transportation achievement is distinguished, and the motorway mileage reaches 7.41 ten thousand kilometers, and national network of highways total kilometrage reaches 398.4 ten thousand kilometers.Estimate that " 12 " end, motorway total kilometrage that is open to traffic will reach 10.8 ten thousand kilometers, the highway total kilometrage that is open to traffic will reach 4,500,000 kilometers.Along with highway technology grade and pavement grade further improve, the bituminous pavement proportion increases year by year.In newly-built motorway, the ratio of bituminous pavement surpasses 90%.When cement concrete was maintained, adopting asphalt to carry out cover also was the most current way to recover the road table function and the traffic capacity.Yet at China's southern area, because the traffic axle carries the comprehensive action of cumulative year after year and burning hot and rainy weather condition, common diseases such as rut, damage by water evil just appear in most of bituminous pavement only several years that are open to traffic.Adopt the road surface of asphalt overlay technology problems such as passing, wave, groove rut also usually to occur.Adopt modified asphalt mixture, can improve the rutting resistance on road surface to a certain extent.At southern damp-heat area, in, that the upper layer bilayer all adopts the case of modifying asphalt to use is more and more general.SBS properties-correcting agent is because its good comprehensive performances is generally the properties-correcting agent type into first-selection.But, become and limited the important factor that it is applied because its price is constantly soaring.In recent years, high viscosity pitch becomes a focus of modifying asphalt research and development aspect.It is mainly used in drainage type pavement structure or drainage type deck installation structure, to improve pitch and the cohesive force of gathering materials.Because the superior anti-rut performance of high viscosity pitch in other asphalt pavement structures, has also caused investigator's attention, and has obtained certain practical applications.
Domesticly use the most general import high viscosity properties-correcting agent to be the TPS properties-correcting agent of Japan and the SK properties-correcting agent of Korea S at present.The better performances of these properties-correcting agent, viscosity are very high, but expensive.Be about 40,000 yuan/ton at present like Japanese high viscosity asphalt modifier, volume is about 12%, and its modifying asphalt comprehensive cost is about 10,000 yuan/ton, and domestic common SBS modifying asphalt price is about 4000～6000 yuan/ton.Because the sky high cost of this high viscosity properties-correcting agent and high viscosity modifying asphalt has greatly retrained its application in pavement engineering.Guangzhou Luxiang Co., Ltd develops the high viscosity modifying asphalt in September, 2005, and 60 ℃ of coefficient of dynamic viscosity surpass 50000Pas.Drainage pavement in the Expo Site uses the RST properties-correcting agent of PVG road and bridge development in a large number, and it is made up of 100 parts of SBS, 40-100 part petroleum resin and 34-70 part zeyssatite.High viscosity modifying asphalt 60 ℃ of coefficient of dynamic viscosity after testing in Hubei " state's wound " reach 66000Pas; It is the main body with SBS and A level bi tumenf orr oad; Add multiple superpolymer viscosity increaser; Utilize the colloidal mill dispersion technology of milling at a high speed, SBS is levigate to micron order, finally form stable modifying asphalt agglutinate.60 ℃ of coefficient of dynamic viscosity of Shenzhen " extra large river SNOTPS " high viscosity modifying asphalt reach more than the 120000Pas, and also there is positive effect the noise reduction aspect.
The research of domestic high viscosity modifying asphalt development in these several years is very fast, and patent is also more and more.No matter be enterprise or scientific research institution, all research shows bigger interest to the high viscosity bituminous, and this and drainage asphalt pavement be unable to do without in the fast development of China.But on the whole, domestic development to the higher high viscosity properties-correcting agent of cost performance still is not very ripe.
Usually, Vilaterm and bituminous consistency are relatively poor, cause the high-temperature storage stability of polyethylene modified asphalt not good enough.Simultaneously, the temperature sensibility of polyethylene modified asphalt and viscosity are also relatively poor.Evidence, in advance Vilaterm being carried out chemical modification is to improve a kind of efficient ways of polyethylene modified asphalt performance.This method not only makes the over-all properties of polyethylene modified asphalt improve, and can when keeping the polyethylene modified asphalt performance, reduce poly consumption.
In previous patent, Vilaterm is carried out chemical modification, normally Vilaterm is carried out fusion-grafting.Though this grafting method is simple and convenient, and cost is not high yet, and its percentage of grafting is extremely low.Thereby with the grafted polyethylene modifying asphalt of fusion-grafting method preparation with respect to polyethylene modified asphalt, the improvement of its performance is not clearly.
Summary of the invention
First technical problem to be solved by this invention provides a kind of better performances, high viscosity pitch that price is lower.
Second technical problem to be solved by this invention provides a kind of this high viscosity bituminous preparation method.
In order to solve above-mentioned first technical problem; High viscosity pitch provided by the invention; By matrix pitch, polycthylene grafted maleic anhydride, increase glutinous resin, waste or used plastics, dispersion agent and stablizer and form through the shears shear at high temperature; The consumption of described polycthylene grafted maleic anhydride is the 5-10% of asphalt quality, and described to increase glutinous resin be the 1-10% of asphalt quality, and described softening agent is the 1-2% of asphalt quality; Described waste or used plastics is the 0.5-1% of asphalt quality, and described dispersion agent and stablizer respectively are the 0.1-1% of asphalt quality.
Described polycthylene grafted maleic anhydride by 100 parts of Vilaterm by weight, by weight 5-15 part maleic anhydride, 0.5-3 part BPO, 10g～500g YLENE form through graft reaction by weight.
Described Vilaterm is a new LDPE (film grade).
Described graft reaction is a kind of in solution graft copolymerization, solid phase grafting and the suspension grafting.
It is described that to increase glutinous resin be one or more the mixture in petroleum resin, coumarone indene resin, the terpine resin.
Described softening agent is Witcizer 300 (DBP), DOP (DOP) or Di Iso Decyl Phthalate (DIDP).
Described dispersion agent is inorganic oxide or poly-phosphate such as Sodium hexametaphosphate 99, tripoly phosphate sodium STPP such as aluminum oxide, red stone.
Described stablizer is polyamide-based stablizer or sulphur class stablizer.
In order to solve second technical problem; Preparation high viscosity bituminous method provided by the invention in high-speed shearing machine, adds after matrix pitch is heated to 170-190 ℃ and increases glutinous resin and polycthylene grafted maleic anhydride; Shear after 10-30 minute; Add softening agent, waste or used plastics, dispersion agent and stablizer, keep 170-190 ℃ again and sheared 50-60 minute, obtain finished product high viscosity pitch.
The preparation method of described polycthylene grafted maleic anhydride is: by 100 parts of Vilaterm by weight, by weight 5-15 part maleic anhydride, 0.5-3 part BPO, an amount of YLENE is through the polycthylene grafted maleic anhydride of a kind of preparation in solution graft copolymerization, solid phase grafting, the suspension grafting method by weight; Wherein, Described solution graft copolymerization is that Vilaterm, maleic anhydride, BPO are dissolved in the excessive YLENE according to the above ratio; Reaction is 5-8 hour under 80 ℃ of constant temperature, adds the excess ethyl alcohol deposition then, filters, oven dry obtains finished product; Described solid phase grafting be with polyethylene powders, maleic anhydride, BPO according to the above ratio and a small amount of YLENE place flask together, continuous stirring reaction is 2～4 hours under 120 ℃ of constant temperature, obtains finished product after the oven dry; Described suspension grafting be with polyethylene powders, maleic anhydride, BPO according to the above ratio and a small amount of YLENE place moisture flask together, under 95 ℃ of constant temperature continuous stirring reaction 2-3 hour, obtain finished product after suction filtration, the oven dry.
Vilaterm and bituminous consistency are problems of failing fine solution always.This patent is grafted on the Vilaterm macromole maleic anhydride small molecules through the chemical graft reaction, has significantly improved poly polarity, thereby has improved Vilaterm and bituminous consistency greatly.Simultaneously, because graft reaction occurs in some solvent, micromolecular intrusion makes Vilaterm molecule spacing become big, is equivalent in advance Vilaterm milled, so grafted polyethylene can extraordinary being dispersed in the pitch.The addition of common polythene modifying asphalt surpasses 6% tangible segregation phenomenon will occur, and the grafted polyethylene addition reaches 10% and also demonstrates good consistency in this product.Because the addition of grafted polyethylene is big and good with bitumen compatibility, product demonstrates good high-temperature stability; Adopt price comparatively cheap Vilaterm, waste or used plastics, increase starting material such as sticking resin, product cost is low, viscosity is high; Technology is simple, is fit to very much scale operation.
This patent utilizes the higher solution graft copolymerization of percentage of grafting, solid phase grafting and suspension grafting method, and preparation is exclusively used in the grafted polyethylene of asphalt modification, and its performance is much better than common polyethylene modified asphalt.In addition, this patent has also added auxiliary modifiers such as viscosity increaser and softening agent, respectively its high temperature and low-temperature performance is improved.Cost of the present invention is low, viscosity is high, good stability, is convenient to storage, is usually used in high temperature, heavy traffic asphaltum road surface, have anti-rut, anti-aging, improve effect such as fatigue property.This high viscosity pitch can be widely used in the comparatively hot areas of summer climate such as south.
This product has following advantage:
1. softening temperature is higher than 80 ℃, so have excellent high-temperature stability;
2. use softening agent is so low temperature ductility is better;
3. penetrative index is about 1.8, and the temperature-sensitive performance is good;
4. adopt comparatively cheap material modified of price, product cost is low;
5. viscosity is higher, and is suitable with the domestic high viscosity pitch numerical value that generally uses;
6. technology is simple.
Embodiment
Following embodiment further specifies of the present invention, rather than limits scope of the present invention.
Embodiment 1:
With the 30g Vilaterm, 3g maleic anhydride, 0.5g BPO are dissolved in the 150g YLENE; Reaction is 5-8 hour under 80 ℃ of constant temperature; Then add the excess ethyl alcohol deposition, filtration, oven dry promptly obtain the polycthylene grafted maleic anhydride of finished product, and this percentage of grafting is about 5%.In high-speed shearing machine; After the 400g matrix pitch is heated to 170 ℃; Add the polycthylene grafted maleic anhydride of 30g, 25g petroleum resin, after 30 minutes, add 5g Witcizer 300,2.5g waste or used plastics, 1.2g polymeric amide and 1.2g red stone at rotating speed 3000r/min down cut; Keep 170 ℃ of shearings (rotating speed is constant) 60 minutes again, obtain finished product high viscosity pitch.60 ℃ of coefficient of dynamic viscosity are 60000Pas, and softening temperature is 85 ℃.
Embodiment 2:
With the 35g polyethylene powders, the 2g maleic anhydride, the 0.3g BPO, 5g YLENE places flask together, and continuous stirring reaction is 2～4 hours under 120 ℃, obtains the polycthylene grafted maleic anhydride of finished product after the oven dry, and this percentage of grafting is 4%.In high-speed shearing machine; After the 400g matrix pitch is heated to 180 ℃; Add the polycthylene grafted maleic anhydride of 35g, 18g coumarone indene resin, at rotating speed 3500r/min down cut after 20 minutes; Add 5g Di Iso Decyl Phthalate, 2.5g waste or used plastics, 2g polymeric amide and 1.2g aluminum oxide, kept 180 ℃ of shearings (rotating speed is constant) more about 50 minutes, obtain finished product high viscosity pitch.60 ℃ of coefficient of dynamic viscosity are 55000Pas.
Embodiment 3:
With the 30g polyethylene powders, the 2g maleic anhydride, the 0.3g BPO, 5g YLENE places flask together, and continuous stirring reaction is 2～4 hours under 120 ℃, obtains the polycthylene grafted maleic anhydride of finished product after the oven dry, and this percentage of grafting is 4%.In high-speed shearing machine; After the 400g matrix pitch is heated to 180 ℃; Add the polycthylene grafted maleic anhydride of 30g, 15g terpine resin, after 15 minutes, add 5g Witcizer 300,2.5g waste or used plastics, 1g SULPHUR POWDER and 1g tripoly phosphate sodium STPP at rotating speed 3800r/min down cut; Keep 180 ℃ of shearings (rotating speed is constant) 60 minutes again, obtain finished product high viscosity pitch.60 ℃ of coefficient of dynamic viscosity are 50000Pas.
Embodiment 4:
With the 40g polyethylene powders, the 2g maleic anhydride, the 0.2g BPO, 10g YLENE, 150ml water places flask together, and continuous stirring reaction is 2 hours under 95 ℃ of constant temperature, suction filtration, oven dry, the polycthylene grafted maleic anhydride that gets product, percentage of grafting are 5%.In high-speed shearing machine; After the 400g matrix pitch is heated to 190 ℃; Add the polycthylene grafted maleic anhydride of 40g, 20g petroleum resin, after 30 minutes, add 6g Witcizer 300,3g waste or used plastics, 2g SULPHUR POWDER and 2g Sodium hexametaphosphate 99 at rotating speed 4000r/min down cut; Keep 190 ℃ of shearings (rotating speed is constant) 60 minutes again, obtain finished product high viscosity pitch.60 ℃ of coefficient of dynamic viscosity are 70000Pas.
Claims (10)
1. high viscosity pitch; It is characterized in that: by matrix pitch, polycthylene grafted maleic anhydride, increase glutinous resin, waste or used plastics, dispersion agent and stablizer and form through the shears shear at high temperature; The consumption of described polycthylene grafted maleic anhydride is the 5-10% of asphalt quality; It is described that to increase glutinous resin be the 1-10% of asphalt quality; Described softening agent is the 1-2% of asphalt quality, and described waste or used plastics is the 0.5-1% of asphalt quality, and described dispersion agent and stablizer respectively are the 0.1-1% of asphalt quality.
2. high viscosity pitch according to claim 1 is characterized in that: described polycthylene grafted maleic anhydride by 100 parts of Vilaterm by weight, by weight 5-15 part maleic anhydride, 0.5-3 part BPO, 10g～500g YLENE form through graft reaction by weight.
3. high viscosity pitch according to claim 2 is characterized in that: described Vilaterm is a new LDPE (film grade).
4. according to claim 2 or 3 described high viscosity pitches, it is characterized in that: described graft reaction is a kind of in solution graft copolymerization, solid phase grafting and the suspension grafting.
5. according to claim 1,2 or 3 described high viscosity pitches, it is characterized in that: described to increase glutinous resin be one or more the mixture in petroleum resin, coumarone indene resin, the terpine resin.
6. according to claim 1,2 or 3 described high viscosity pitches, it is characterized in that: described softening agent is Witcizer 300, DOP or Di Iso Decyl Phthalate.
7. according to claim 1,2 or 3 described high viscosity pitches, it is characterized in that: described dispersion agent is aluminum oxide, red stone inorganic oxide or Sodium hexametaphosphate 99, tripoly phosphate sodium STPP poly-phosphate.
8. according to claim 1,2 or 3 described high viscosity pitches, it is characterized in that: described stablizer is polyamide-based stablizer or sulphur class stablizer.
9. prepare the described high viscosity bituminous of claim 1 method; It is characterized in that: in high-speed shearing machine; Add after matrix pitch is heated to 170-190 ℃ and increase glutinous resin and polycthylene grafted maleic anhydride, shears after 10-30 minute adding softening agent, waste or used plastics, dispersion agent and stablizer; Keep 170-190 ℃ again and sheared 50-60 minute, obtain finished product high viscosity pitch.
10. preparation high viscosity bituminous method according to claim 1; It is characterized in that: the preparation method of described ethene grafted maleic anhydride is: by 100 parts of Vilaterm by weight, by weight 5-15 part maleic anhydride, 0.5-3 part BPO, an amount of YLENE is through the polycthylene grafted maleic anhydride of a kind of preparation in solution graft copolymerization, solid phase grafting, the suspension grafting method by weight; Wherein, Described solution graft copolymerization is that Vilaterm, maleic anhydride, BPO are dissolved in the excessive YLENE according to the above ratio; Reaction is 5-8 hour under 80 ℃ of constant temperature, adds the excess ethyl alcohol deposition then, filters, oven dry obtains finished product; Described solid phase grafting be with polyethylene powders, maleic anhydride, BPO according to the above ratio and a small amount of YLENE place flask together, continuous stirring reaction is 2～4 hours under 120 ℃ of constant temperature, obtains finished product after the oven dry; Described suspension grafting be with polyethylene powders, maleic anhydride, BPO according to the above ratio and a small amount of YLENE place moisture flask together, under 95 ℃ of constant temperature continuous stirring reaction 2-3 hour, obtain finished product after suction filtration, the oven dry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100134702A CN102585526A (en) | 2012-01-17 | 2012-01-17 | High-viscosity asphalt and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100134702A CN102585526A (en) | 2012-01-17 | 2012-01-17 | High-viscosity asphalt and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102585526A true CN102585526A (en) | 2012-07-18 |
Family
ID=46474792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100134702A Pending CN102585526A (en) | 2012-01-17 | 2012-01-17 | High-viscosity asphalt and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102585526A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110564170A (en) * | 2019-09-27 | 2019-12-13 | 安徽虹达道路桥梁工程有限公司 | Modified asphalt for roads and bridges and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101538408A (en) * | 2008-03-19 | 2009-09-23 | 重庆市智翔铺道技术工程有限公司 | High viscosity bitumen and preparation method thereof |
-
2012
- 2012-01-17 CN CN2012100134702A patent/CN102585526A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101538408A (en) * | 2008-03-19 | 2009-09-23 | 重庆市智翔铺道技术工程有限公司 | High viscosity bitumen and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 张玉霞: "聚合物结构对改性沥青性能的影响", 《中国硕士学位论文全文数据库工程科技I辑》, 7 March 2008 (2008-03-07) * |
| 陈光岩: "功能化烯烃共聚物的合成及结构表征", 《中国博士学位论文全文数据库工程科技I辑》, 24 March 2010 (2010-03-24) * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110564170A (en) * | 2019-09-27 | 2019-12-13 | 安徽虹达道路桥梁工程有限公司 | Modified asphalt for roads and bridges and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101165102B (en) | Traffic anti-track asphalt modifier and its modified asphalt and asphalt mixture | |
| CN101063000B (en) | Bitumen modifier for traffic tracking resistance and modified bitumen and mixer thereof | |
| CN103408956B (en) | A kind of high performance modified bitumen and preparation method thereof | |
| CN102031002B (en) | Non-cured asphalt mastic | |
| CN103289321B (en) | Pavement thermoregulation paving material based on phase-change heat accumulation microcapsules | |
| CN102337036B (en) | Oxidized polyethlene wax-containing modified asphalt and preparation method thereof, and asphalt concrete | |
| CN103497481B (en) | A kind of chromatic bituminous cement and preparation method thereof | |
| CN103613940A (en) | Rock asphalt composite modifier as well as preparation method and application thereof | |
| CN101857393A (en) | Anti-rut asphalt modifier and preparation method thereof and modified asphalt and application thereof | |
| CN101906224A (en) | Anti-rutting asphalt modifier, preparation method thereof, modified asphalt and application thereof | |
| CN101913799B (en) | Compound for stress absorbing layer of rubber asphalt and preparation method and application thereof | |
| CN102690522A (en) | Rock asphalt composite modifier as well as preparation method and application thereof | |
| CN101565286B (en) | Method for preparing rubber powder masterbatch capable of quickly dispersing modified asphalt | |
| CN102070313B (en) | Additive-free cold patch asphalt material and preparation method thereof | |
| CN102942335A (en) | Microcrystalline wax-modified cold patch asphalt mixture and preparation method thereof | |
| CN101914365A (en) | Composite reaction-type road surface waterproof bonding material | |
| CN109096781B (en) | Modified emulsified asphalt and preparation method thereof | |
| CN205711598U (en) | A kind of modification biological asphalt pavement structure | |
| CN104944843B (en) | A kind of high performance asphalt of steel bridge deck pavement and preparation method thereof | |
| CN103725023A (en) | Rubber powder modified asphalt and preparation method thereof | |
| CN102585526A (en) | High-viscosity asphalt and preparation method thereof | |
| CN103289425B (en) | Preparation method of of pavement thermoregulation paving material based on phase-change heat accumulation microcapsules | |
| CN106243747B (en) | A kind of high and cold modified pitch and preparation method thereof | |
| CN101348613B (en) | Non-water road modified asphalt cold-penetration seam material and preparation of thereof | |
| CN103305017B (en) | Preparation method of pavement material with self-adapting pavement temperature adjustment function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120718 |