Changes in reaction temperature will affect the performance indicators of modified bitumen, such as ductility, softening point, penetration and solubility.

1. Effect of physical and chemical properties: In the production process of SBS modified bitumen, appropriate reaction temperature (such as 180°C) can promote the compatibility between SBS and base bitumen, thereby improving the storage stability and road performance of modified bitumen. High temperature helps to disperse the polymer, making it more evenly distributed in the bitumen, thereby affecting its physical and chemical properties.

2. Effect on the quality of the final product: The reaction temperature is directly related to the performance indicators of the modified bitumen, such as temperature sensitivity, high temperature stability and low temperature crack resistance. For example, appropriate shear temperature and time can improve the high temperature stability and low temperature crack resistance of modified bitumen, ensuring its performance under different temperature conditions. Conversely, too low or too high temperature may cause the compatibility of the modifier and bitumen to decrease, thus affecting the quality of the final product.

In summary, reaction temperature is a key factor affecting the physical and chemical properties of SBS modified bitumen and the quality of the final product. Reasonable temperature control can significantly improve the performance of modified bitumen.

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