The properties of SBS modified bitumen are closely related to the preparation process conditions, in which the amount of SBS, compatibilizer, stabilizer and reaction temperature are the main factors affecting the properties of SBS modified bitumen.

1. The influence of SBS dosage on the performance of modified bitumen: When the amount of SBS is small, SBS is evenly dispersed in the bitumen, and it is easy to prepare a stable sample; As the amount of SBS increases, the difficulty of SBS dispersion increases, and the stability of modified bitumen decreases.

2. The influence of the amount of compatibilizers and stabilizers on the selection of compatibilizers and stabilizers: compatibilizers can promote the swelling of SBS in bitumen, reduce the force of SBS molecules, and make SBS disperse more evenly in bitumen; The stabilizer can trigger the crosslinking reaction of SBS, promote the dispersed SBS to form a stable spatial network structure, wrap the bitumen in the network, and prevent the separation of SBS and bitumen. Compatibilizers and stabilizers have certain complementarity, and the amount of stabilizer can be reduced by appropriately increasing the amount of compatibilizers, or by appropriately increasing the amount of stabilizer to reduce the amount of compatibilizers.

3. The influence of reaction temperature on the selection of compatibilizers and stabilizers: The reference information does not mention the influence of reaction temperature on the selection of compatibilizers and stabilizers, so the relevant answer cannot be given.

In summary, the amount of SBS, compatibilizer and stabilizer are important process conditions that affect the performance of SBS modified bitumen.

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