CN104962091A - Polymer modified asphalt and preparation method thereof - Google Patents
Polymer modified asphalt and preparation method thereof Download PDFInfo
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- CN104962091A CN104962091A CN201510402214.6A CN201510402214A CN104962091A CN 104962091 A CN104962091 A CN 104962091A CN 201510402214 A CN201510402214 A CN 201510402214A CN 104962091 A CN104962091 A CN 104962091A
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Abstract
The invention discloses polymer modified asphalt. The polymer modified asphalt comprises the following components in parts by weight: 50 to 100 parts of asphalt, 10 to 20 parts of polymer modifier, 2 to 7 parts of rubber powder, 1 to 8 parts of nano titanium oxide, 2 to 10 parts of polyacrylate, 2 to 5 parts of surfactant, 1 to 8 parts of heat stabilizer and 2 to 8 parts of anti-aging agent. The invention also discloses a preparation method of the polymer modified asphalt. The polymer modified asphalt is good in low temperature resistance, high temperature resistance, rigidness, flexibility and stability, simple in preparation method and low in cost; no toxic substance is released in the preparation process, and the environmental protection can be facilitated.
Description
Technical field:
The present invention relates to asphalt modification technical field, be specifically related to a kind of polymer modified asphalt.
Background technology:
Along with the development of highway in China, bituminous pavement becomes first-selected road surface types in high-grade highway construction, but can not be ignored problem is that the early damage of bituminous pavement is more and more serious, be increasing due to automobile quantity on the one hand, overloading is given prominence in addition; On the other hand, be because pitch is to the susceptibility of temperature, make it when high temperature because strength and stiffness reduces, road surface is easily softening and produce rut, gather around the phenomenons such as bag, bellding; And when low temperature because crack resistance is poor, road surface easily produces fatigue cracking, shrinkage cracking, reflective crack, causes the inside control breakdown, have impact on the weather resistance of bituminous pavement.
Chinese patent (CN1990578A) discloses a kind of composite modified asphalt being beneficial to construction, comprise pitch, SBS, polyethylene wax, Poly Propylene Wax, petroleum resin and sulphur, although this composite modified asphalt has certain resistance to elevated temperatures, but the membership that adds of sulphur produces toxic gas, in process of production to bad environmental; Chinese patent (CN102304288A) discloses a kind of SBS modified asphalt waterproof coiled material of filling glass bead, improved resistance to elevated temperatures, the low temperature flexibility of SBS modifying asphalt, but glass bead water-intake rate is high, poor thermal conductivity by glass bead.
Summary of the invention:
The object of this invention is to provide a kind of polymer modified asphalt, resistance to low temperature is good, and resistance to elevated temperatures is good, and rigidity, snappiness are large, good stability, and preparation method is simple, and cost is low, without toxic substance release in preparation process, is conducive to environment protection.
Another object of the present invention is to provide the preparation method of this polymer modified asphalt.
For achieving the above object, the present invention is by the following technical solutions:
A kind of polymer modified asphalt, with parts by weight, comprises following component:
Pitch 50-100 part, polymer modifiers 3-20 part,
Rubber powder 2-7 part, nano-titanium oxide 1-8 part,
Polyacrylic ester 2-10 part, tensio-active agent 2-5 part,
Thermo-stabilizer 1-8 part, antiaging agent 2-8 part.
Preferred as technique scheme, a kind of polymer modified asphalt, with parts by weight, comprises following component:
Pitch 87 parts, polymer modifiers 5 parts,
Rubber powder 7 parts, nano-titanium oxide 5 parts,
Polyacrylic ester 6 parts, 3 parts, tensio-active agent,
Thermo-stabilizer 5 parts, antiaging agent 6 parts.
Preferred as technique scheme, described pitch is petroleum pitch.
Preferred as technique scheme, described polymer modifiers is styrene-butadiene-styrene and polyacrylic mixture, and the two mass ratio is 1:1.
Preferred as technique scheme, the particle diameter of described rubber powder is 100-200nm.
Preferred as technique scheme, the particle diameter of described nano-titanium oxide is 12-20nm.
Preferred as technique scheme, described tensio-active agent is one or more mixing in silicone resin, Sodium dodecylbenzene sulfonate, sodium lauryl sulphate, span-80.
Preferred as technique scheme, described thermo-stabilizer is mineral oil.
Preferred as technique scheme, described antiaging agent is β-propionic acid ten caprylate.
A preparation method for polymer modified asphalt, comprises the following steps:
By asphalt heating to 170-190 DEG C, add polymer modifiers to stir, disperse, swelling, then add nano-titanium oxide, rubber powder, polyacrylic ester, tensio-active agent, continue dispersed with stirring, finally add thermo-stabilizer, antiaging agent, in the high-speed shearing homogenizing mill of input with the molten insulation of oil, at 170-190 DEG C, do further dispersion miscible, obtain polymer modified asphalt.
Compared with prior art, the present invention has following beneficial effect:
The present invention adopts polypropylene, SBS to carry out modification to pitch, substantially increases the snappiness of pitch, efficiently solves the problem that pitch low temperature is easy to crack, and resistance to elevated temperatures, the mechanical property of pitch also improve greatly; Adding of tensio-active agent, substantially increase the consistency of polypropylene, SBS and pitch, solve the problem of polymkeric substance and the poor processing difficulties caused of bitumen compatibility; Polyacrylic ester has good bonding capacity, and make modifying asphalt stickiness large, not easy to crack, meanwhile, polyacrylic ester has submissive macromolecular chain, effectively can improve the snappiness of pitch.
Embodiment:
Below by embodiment, the present invention is further described for a better understanding of the present invention, and embodiment, can not the present invention is further described only for explaining the present invention.
Embodiment 1
A kind of polymer modified asphalt, with parts by weight, comprises following component:
Pitch 55 parts, polymer modifiers 5 parts,
Rubber powder 2 parts, nano-titanium oxide 1 part,
Polyacrylic ester 2 parts, 2 parts, tensio-active agent,
Thermo-stabilizer 1 part, antiaging agent 2 parts.
Its preparation method comprises the following steps:
By 55 parts of asphalt heatings to 170 DEG C, add 5 parts of polymer modifiers to stir, disperse, swelling, then add 1 part of nano-titanium oxide, 2 parts of rubber powders, 2 parts of polyacrylic ester, 2 parts of tensio-active agents, continue dispersed with stirring, finally add 1 part of thermo-stabilizer, 2 parts of antiaging agents, in the high-speed shearing homogenizing mill of input with the molten insulation of oil, at 170 DEG C, do further dispersion miscible, obtain polymer modified asphalt.
Embodiment 2
A kind of polymer modified asphalt, with parts by weight, comprises following component:
Pitch 100 parts, polymer modifiers 6 parts,
Rubber powder 7 parts, nano-titanium oxide 8 parts,
Polyacrylic ester 10 parts, 5 parts, tensio-active agent,
Thermo-stabilizer 8 parts, antiaging agent 8 parts.
Its preparation method comprises the following steps:
By 100 parts of asphalt heatings to 190 DEG C, add 6 parts of polymer modifiers to stir, disperse, swelling, then add 8 parts of nano-titanium oxides, 7 parts of rubber powders, 10 parts of polyacrylic ester, 5 parts of tensio-active agents, continue dispersed with stirring, finally add 8 parts of thermo-stabilizers, 8 parts of antiaging agents, in the high-speed shearing homogenizing mill of input with the molten insulation of oil, at 190 DEG C, do further dispersion miscible, obtain polymer modified asphalt.
Embodiment 3
A kind of polymer modified asphalt, with parts by weight, comprises following component:
Pitch 66 parts, polymer modifiers 6 parts,
Rubber powder 3 parts, nano-titanium oxide 2 parts,
Polyacrylic ester 3 parts, 3 parts, tensio-active agent,
Thermo-stabilizer 2 parts, antiaging agent 3 parts.
Its preparation method comprises the following steps:
By 66 parts of asphalt heatings to 175 DEG C, add 6 parts of polymer modifiers to stir, disperse, swelling, then add 2 parts of nano-titanium oxides, 3 parts of rubber powders, 3 parts of polyacrylic ester, 3 parts of tensio-active agents, continue dispersed with stirring, finally add 2 parts of thermo-stabilizers, 3 parts of antiaging agents, in the high-speed shearing homogenizing mill of input with the molten insulation of oil, at 175 DEG C, do further dispersion miscible, obtain polymer modified asphalt.
Embodiment 4
A kind of polymer modified asphalt, with parts by weight, comprises following component:
Pitch 81 parts, polymer modifiers 8 parts,
Rubber powder 4 parts, nano-titanium oxide 3 parts,
Polyacrylic ester 4 parts, 4 parts, tensio-active agent,
Thermo-stabilizer 3 parts, antiaging agent 4 parts.
Its preparation method comprises the following steps:
By 81 parts of asphalt heatings to 180 DEG C, add 8 parts of polymer modifiers to stir, disperse, swelling, then add 3 parts of nano-titanium oxides, 4 parts of rubber powders, 4 parts of polyacrylic ester, 4 parts of tensio-active agents, continue dispersed with stirring, finally add 3 parts of thermo-stabilizers, 4 parts of antiaging agents, in the high-speed shearing homogenizing mill of input with the molten insulation of oil, at 180 DEG C, do further dispersion miscible, obtain polymer modified asphalt.
Embodiment 5
A kind of polymer modified asphalt, with parts by weight, comprises following component:
Pitch 89 parts, polymer modifiers 17 parts,
Rubber powder 5 parts, nano-titanium oxide 4 parts,
Polyacrylic ester 6 parts, 5 parts, tensio-active agent,
Thermo-stabilizer 5 parts, antiaging agent 6 parts.
Its preparation method comprises the following steps:
By 89 parts of asphalt heatings to 185 DEG C, add 17 parts of polymer modifiers to stir, disperse, swelling, then add 4 parts of nano-titanium oxides, 5 parts of rubber powders, 6 parts of polyacrylic ester, 5 parts of tensio-active agents, continue dispersed with stirring, finally add 5 parts of thermo-stabilizers, 6 parts of antiaging agents, in the high-speed shearing homogenizing mill of input with the molten insulation of oil, at 185 DEG C, do further dispersion miscible, obtain polymer modified asphalt.
Embodiment 6
A kind of polymer modified asphalt, with parts by weight, comprises following component:
Pitch 98 parts, polymer modifiers 9 parts,
Rubber powder 6 parts, nano-titanium oxide 6 parts,
Polyacrylic ester 8 parts, 4 parts, tensio-active agent,
Thermo-stabilizer 6 parts, antiaging agent 7 parts.
Its preparation method comprises the following steps:
By 98 parts of asphalt heatings to 188 DEG C, add 9 parts of polymer modifiers to stir, disperse, swelling, then add 6 parts of nano-titanium oxides, 6 parts of rubber powders, 8 parts of polyacrylic ester, 4 parts of tensio-active agents, continue dispersed with stirring, finally add 6 parts of thermo-stabilizers, 7 parts of antiaging agents, in the high-speed shearing homogenizing mill of input with the molten insulation of oil, at 188 DEG C, do further dispersion miscible, obtain polymer modified asphalt.
Performance test is carried out to polymer modified asphalt provided by the invention below, test as shown in table 1.
Table 1
From table 1, polymer modified asphalt provided by the invention has excellent resistance to elevated temperatures and low temperature flexibility.
Claims (10)
1. a polymer modified asphalt, is characterized in that, with parts by weight, comprises following component:
Pitch 50-100 part, polymer modifiers 3-20 part,
Rubber powder 2-7 part, nano-titanium oxide 1-8 part,
Polyacrylic ester 2-10 part, tensio-active agent 2-5 part,
Thermo-stabilizer 1-8 part, antiaging agent 2-8 part.
2. a kind of polymer modified asphalt as claimed in claim 1, is characterized in that, with parts by weight, comprises following component:
Pitch 87 parts, polymer modifiers 5 parts,
Rubber powder 7 parts, nano-titanium oxide 5 parts,
Polyacrylic ester 6 parts, 3 parts, tensio-active agent,
Thermo-stabilizer 5 parts, antiaging agent 6 parts.
3. a kind of polymer modified asphalt as claimed in claim 1, is characterized in that, described pitch is petroleum pitch.
4. a kind of polymer modified asphalt as claimed in claim 1, is characterized in that, described polymer modifiers is styrene-butadiene-styrene and polyacrylic mixture, and the two mass ratio is 1:1.
5. a kind of polymer modified asphalt as claimed in claim 1, is characterized in that, the particle diameter of described rubber powder is 100-200nm.
6. a kind of polymer modified asphalt as claimed in claim 1, is characterized in that, the particle diameter of described nano-titanium oxide is 12-20nm.
7. a kind of polymer modified asphalt as claimed in claim 1, is characterized in that, described tensio-active agent is one or more mixing in silicone resin, Sodium dodecylbenzene sulfonate, sodium lauryl sulphate, span-80.
8. a kind of polymer modified asphalt as claimed in claim 1, is characterized in that, described thermo-stabilizer is mineral oil.
9. a kind of polymer modified asphalt as claimed in claim 1, is characterized in that, described antiaging agent is β-propionic acid ten caprylate.
10. the preparation method of a kind of polymer modified asphalt as described in as arbitrary in claim 1 to 9, is characterized in that, comprise the following steps:
By asphalt heating to 170-190 DEG C, add polymer modifiers to stir, disperse, swelling, then add nano-titanium oxide, rubber powder, polyacrylic ester, tensio-active agent, continue dispersed with stirring, finally add thermo-stabilizer, antiaging agent, in the high-speed shearing homogenizing mill of input with the molten insulation of oil, at 170-190 DEG C, do further dispersion miscible, obtain polymer modified asphalt.
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| CN201510402214.6A CN104962091A (en) | 2015-07-07 | 2015-07-07 | Polymer modified asphalt and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106746927A (en) * | 2016-12-27 | 2017-05-31 | 华北水利水电大学 | Nano-compound modified asphalt and preparation method thereof |
| CN111119352A (en) * | 2019-12-30 | 2020-05-08 | 北新禹王防水科技(安徽)有限公司 | Activated rubber modified asphalt waterproof coiled material and preparation method thereof |
| CN111978746A (en) * | 2020-08-12 | 2020-11-24 | 华南理工大学 | Modified rubber asphalt and preparation method thereof |
| CN112409803A (en) * | 2020-11-10 | 2021-02-26 | 上海城建日沥特种沥青有限公司 | Modified asphalt raw material composition, modified asphalt and preparation method and application thereof |
| CN113022044A (en) * | 2021-03-20 | 2021-06-25 | 新京喜(唐山)建材有限公司 | Elastomer modified asphalt waterproof coiled material and preparation process thereof |
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| CN1212266A (en) * | 1998-09-07 | 1999-03-31 | 杨林江 | Polymer modified asphalt and preparing method thereof |
| CN102304288A (en) * | 2011-06-01 | 2012-01-04 | 北京立高防水工程有限公司 | SBS (styrene-butadiene-styrene) modified asphalt waterproof coiled material filled with vitrified microbeads and preparation method thereof |
| CN102911507A (en) * | 2012-11-12 | 2013-02-06 | 江柳 | Composite asphalt modifier as well as preparation method and application method of composite asphalt modifier |
| CN104723528A (en) * | 2015-03-27 | 2015-06-24 | 青岛科化高分子科技股份有限公司 | Process for producing polymer modified asphalt waterproof coil |
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2015
- 2015-07-07 CN CN201510402214.6A patent/CN104962091A/en active Pending
Patent Citations (4)
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| CN1212266A (en) * | 1998-09-07 | 1999-03-31 | 杨林江 | Polymer modified asphalt and preparing method thereof |
| CN102304288A (en) * | 2011-06-01 | 2012-01-04 | 北京立高防水工程有限公司 | SBS (styrene-butadiene-styrene) modified asphalt waterproof coiled material filled with vitrified microbeads and preparation method thereof |
| CN102911507A (en) * | 2012-11-12 | 2013-02-06 | 江柳 | Composite asphalt modifier as well as preparation method and application method of composite asphalt modifier |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106746927A (en) * | 2016-12-27 | 2017-05-31 | 华北水利水电大学 | Nano-compound modified asphalt and preparation method thereof |
| CN106746927B (en) * | 2016-12-27 | 2019-02-12 | 华北水利水电大学 | Nano-compound modified asphalt and preparation method thereof |
| CN111119352A (en) * | 2019-12-30 | 2020-05-08 | 北新禹王防水科技(安徽)有限公司 | Activated rubber modified asphalt waterproof coiled material and preparation method thereof |
| CN111978746A (en) * | 2020-08-12 | 2020-11-24 | 华南理工大学 | Modified rubber asphalt and preparation method thereof |
| CN112409803A (en) * | 2020-11-10 | 2021-02-26 | 上海城建日沥特种沥青有限公司 | Modified asphalt raw material composition, modified asphalt and preparation method and application thereof |
| CN112409803B (en) * | 2020-11-10 | 2022-08-16 | 上海城建日沥特种沥青有限公司 | Modified asphalt raw material composition, modified asphalt and preparation method and application thereof |
| CN113022044A (en) * | 2021-03-20 | 2021-06-25 | 新京喜(唐山)建材有限公司 | Elastomer modified asphalt waterproof coiled material and preparation process thereof |
| CN113022044B (en) * | 2021-03-20 | 2022-01-04 | 新京喜(唐山)建材有限公司 | Elastomer modified asphalt waterproof coiled material and preparation process thereof |
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Application publication date: 20151007 |