Reaction type SBS (styrene butadiene styrene) compound high-viscosity and high-elasticity modified asphalt and preparation method thereof
The invention discloses reaction type SBS compound high-viscosity and high-elasticity modified asphalt and a preparation method thereof. The preparation method comprises the steps that in percentage by mass, 5%-7% of thermoplastic elastomer, 3%-4% of viscosity modifier, 4%-6% of compatilizer and 0.0...
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Format | Patent |
Language | Chinese English |
Published |
23.10.2018
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Abstract | The invention discloses reaction type SBS compound high-viscosity and high-elasticity modified asphalt and a preparation method thereof. The preparation method comprises the steps that in percentage by mass, 5%-7% of thermoplastic elastomer, 3%-4% of viscosity modifier, 4%-6% of compatilizer and 0.08%-0.15% of cross-linking agent are mixed, substrate asphalt is supplemented to be 100%; the compatilizer and the viscosity modifier are added into the substrate asphalt, the compatibility of the modified asphalt system is enhanced, and the phenomenon of separation between a polymer and the substrate asphalt is avoided; the thermoplastic elastomer is heated, the double bond of polybutadiene in the thermoplastic elastomer is open under the high temperature and strong shearing conductions, the double bond becomes the center of the reaction activity, cross-linking occurs among SBS modifier molecules under the effect of the cross-linking agent, a grafting reaction occurs between the SBS modifiermolecules and asphalt, a |
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AbstractList | The invention discloses reaction type SBS compound high-viscosity and high-elasticity modified asphalt and a preparation method thereof. The preparation method comprises the steps that in percentage by mass, 5%-7% of thermoplastic elastomer, 3%-4% of viscosity modifier, 4%-6% of compatilizer and 0.08%-0.15% of cross-linking agent are mixed, substrate asphalt is supplemented to be 100%; the compatilizer and the viscosity modifier are added into the substrate asphalt, the compatibility of the modified asphalt system is enhanced, and the phenomenon of separation between a polymer and the substrate asphalt is avoided; the thermoplastic elastomer is heated, the double bond of polybutadiene in the thermoplastic elastomer is open under the high temperature and strong shearing conductions, the double bond becomes the center of the reaction activity, cross-linking occurs among SBS modifier molecules under the effect of the cross-linking agent, a grafting reaction occurs between the SBS modifiermolecules and asphalt, a |
Author | WANG JIARONG HUANG SHUOLEI ZHANG ZHENGQI ZHAO QINSHENG LU CHUAN |
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DocumentTitleAlternate | 种反应型SBS复配高粘高弹改性沥青及制备方法 |
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Snippet | The invention discloses reaction type SBS compound high-viscosity and high-elasticity modified asphalt and a preparation method thereof. The preparation method... |
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Title | Reaction type SBS (styrene butadiene styrene) compound high-viscosity and high-elasticity modified asphalt and preparation method thereof |
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