一种SBS聚合物改性沥青用沥青原料及改性沥青

By optimizing the raw material composition of SBS polymer-modified asphalt, the problem of unstable quality of modified asphalt was solved, and the high-temperature performance, low-temperature performance, anti-aging performance and storage stability were improved, while reducing production costs.

CN119432104BActive Publication Date: 2026-07-17HAIYUN (HAINAN) MATERIALS TECHNOLOGY CO LTD +3
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HAIYUN (HAINAN) MATERIALS TECHNOLOGY CO LTD
Filing Date
2024-11-29
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing modified asphalt cannot simultaneously meet the requirements for high-temperature performance, low-temperature performance, anti-aging performance, and storage stability, and the addition of additives leads to inconsistent quality and increased costs.

Method used

Modified asphalt was prepared by optimizing the raw material composition of SBS polymer-modified asphalt, including the content of saturated components, aromatic components, resins and asphaltenes, as well as the weight-average molecular weight, penetration and colloidal instability index, without the need for additional additives.

Benefits of technology

It improves the high-temperature performance, low-temperature performance, anti-aging performance and storage stability of modified asphalt, reduces production costs and increases production efficiency.

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Abstract

本发明涉及道路材料技术领域，尤其涉及一种SBS聚合物改性沥青用沥青原料及改性沥青。所述SBS聚合物改性沥青用沥青原料，以质量含量计，包括：饱和分9%~16%；芳香分43%~53%；胶质22%~28%；沥青质9%~12%；所述SBS聚合物改性沥青用沥青原料的25℃针入度为63‑75 0.1mm；60℃动力粘度小于等于240 Pa·s；针入度比大于等于65%；胶体不稳定指数为0.2‑0.4；所述SBS聚合物改性沥青用沥青原料的重均分子量为1400‑2200 g / mol。本发明通过优化沥青原料组分，生产的改性沥青具有较好的高温性能、低温性能、抗老化性能、储存稳定性，生产效率提升，成本降低。
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