1、Thermosetting resin modified asphalt: A comprehensive review
This paper introduces several main thermosetting resin modified asphalts, including epoxy resin modified asphalt, thermosetting polyurethane modified asphalt, unsaturated polyester resin modified asphalt, and their composite modified asphalt.
2、酚醛树脂改性沥青基硬碳的制备及储钠性能研究
石油沥青作为炼油副产品被用作多种碳质材料前驱体,但在高温碳化过程中易石墨化,不利于钠离子储存。 将酚醛树脂引入硬质沥青共碳化,促进沥青分子与酚醛树脂分子间的交联,抑制碳层熔融重排,得到酚醛树脂改性沥青基硬碳材料。 当酚醛树脂添加质量比例为1∶1时,在1 200℃碳化所得硬碳材料具有最佳的储钠电化学性能。 在0.05 A/g电流密度下,比容量达270.2 mAh/g,首次库仑效率为63.8%。 在0.3 A/g电流密度下,循环1 200圈后容量保持率达71.6%。
3、酚醛树脂改性沥青基硬碳的制备及储钠性能研究
将酚醛树脂引入硬质沥青共碳化,促进沥青分子与酚醛树脂分子间的交联,抑制碳层熔融重排,得到酚醛树脂改性沥青基硬碳材料。 当酚醛树脂添加质量比例为1∶1时,在1200℃碳化所得硬碳材料具有最佳的储钠电化学性能。 在0.05 A/g电流密度下,比容量达270.2 mAh/g,首次库仑效率为63.8%。 在0.3 A/g电流密度下,循环1200圈后容量保持率达71.6%。
C9 Petroleum Resin and Polyethylene
This study, based on 90# matrix asphalt binder, investigates the use of SBS, C9 petroleum resin, and polyethylene (PE) as modifiers to prepare high-viscosity modified asphalt binders.
Rheological properties and 3D printability of SBS/CR
Introduction: This study investigates rheological behavior and 3D printability of SBS-, CR-, SBS/CR-modified asphalt binder with C9 petroleum resin (C9PR) for crack filling.
Effect of Aromatic Petroleum Resin on Microstructure of SBS Modified
Researchers have tried to use a variety of methods to improve the technical properties of SBS modified asphalt and achieved certain results. Among them, new modifiers are an important way.
Thermosetting resin modified asphalt: A comprehensive review
The material composition, modification mechanism, and curing behavior of epoxy asphalt, thermosetting polyurethane modified asphalt, unsaturated polyester modified asphalt, and other...
Modification mechanism of C9 petroleum resin and its influence on SBS
In this paper, C 9 petroleum resin was used as the raw material, and the microstructure of C 9 /SBS modified asphalt at a different time under different C 9 petroleum resin content was studied by fluorescence microscope.
Evaluation of the Effect of C9 Petroleum Resin on Rheological
Understanding the modification mechanism of C9 petroleum resin (C9PR) on styrene–butadiene–styrene (SBS) polymer modified asphalt properties is of significant importance.
Achieving lower temperature modification and its mechanism of SBS
Achieving lower temperature modification of SBS modified asphalt is of vital significance in energy conservation and carbon emission reduction.
In modern road construction, the selection and optimization of materials are critical to ensuring road quality and durability. Petroleum asphalt, a traditional pavement material, is widely used due to its abundant sources and low cost. its limitations, such as a low high-temperature softening point and brittleness at low temperatures, restrict its application under extreme climatic conditions. To overcome these drawbacks, resin-modified petroleum asphalt has emerged. This new material improves the physical and chemical properties of asphalt by incorporating resins, thereby enhancing road performance and extending service life.
The Basic Principle of Resin-Modified Petroleum Asphalt The core idea involves blending specific resins with petroleum asphalt, leveraging the resin’s adhesive properties and temperature adaptability to strengthen the asphalt’s overall performance. Resins fill gaps in the asphalt matrix, improving deformation resistance, while also enhancing flexibility and heat resistance. This enables the material to maintain stability across a wider temperature range.
Selection of Resins: A Key Factor The type and choice of resin significantly impact modification effects. Common resins include epoxy resins, phenolic resins, and polyurethane resins. Each resin offers unique advantages: epoxy resins excel in adhesive strength and mechanical robustness, while phenolic resins are prized for their thermal stability. Selecting the appropriate resin is crucial to achieving desired outcomes.
Advantages of Resin-Modified Asphalt
- Enhanced Deformation Resistance: Reduces pavement cracking caused by temperature fluctuations, prolonging road lifespan.
- Improved Flexibility: Absorbs and dissipates vehicle-induced impacts more effectively, slowing pavement deterioration.
- Waterproofing and Weather Resistance: Maintains stability under complex climates, ensuring long-term reliability.
Practical Applications and Performance Resin-modified asphalt has proven superior in high-traffic scenarios, such as highways. For example, roads constructed with this material sustain heavy vehicle loads with minimal maintenance, lowering repair costs. Its high-temperature resistance and anti-aging properties allow it to withstand seasonal changes, including extreme weather, while maintaining functionality.
Challenges and Considerations Despite its benefits, resin-modified asphalt faces challenges:
- Cost: Resins are relatively expensive, potentially increasing construction budgets.
- Technical Requirements: Specialized equipment and expertise are needed during implementation to ensure optimal results. Balancing economic feasibility and technological advancement is essential for broader adoption.
Future Outlook As an innovative pavement material, resin-modified petroleum asphalt holds significant potential for road construction. With proper design and execution, it can elevate road quality and efficiency, contributing to socioeconomic development. Advances in technology and cost reductions may soon make it the preferred choice for road projects worldwide.
