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21 2024-05

Why is excessive coupling agent the main cause of discoloration of SBS rubber liquid? Are there other factors that can also cause the rubber liquid to change color?

Excessive coupling agent is the main reason for the discoloration of SBS rubber liquid because the coupling agent will react with other components in the rubber during the reaction process to form colored substances, resulting in discoloration of the rubber liquid. Excessive coupling agent will incr

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11 2024-05

Why is the compatibility between SBS and base bitumen poor, and how can functional chemical additives improve their compatibility?

The reason for the poor compatibility between SBS and matrix bitumenis that they have great differences in chemical structure, polarity, density, molecular weight, solubility coefficient and so on. SBS is a non-polar polymer and its molecular weight is larger, while the matrix bitumencon

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30 2024-04

How can functional chemical auxiliaries improve the high and low temperature properties and storage stability of SBS modified bitumen through chemical bonding?

Functional chemical additives improve the high and low temperature properties and storage stability of SBS modified bitumenthrough chemical bonding. In the functional chemical additives +SBS modified bitumensystem, the chemical bonding action of functional chemical additives causes the S

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26 2024-04

During the blending process of bitumen and SBS, why do SBS particles gradually swell and form a stable mixture with bitumen? How is the dynamic balance achieved in this process?

In the blending process of bitumen and SBS, SBS particles gradually swell and form a stable mixture with bitumen because of the following reasons: according to the similarity compatibility principle, the oil content (saturation and aromatic content) in bitumen is compatible with SBS during Brownian

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13 2024-04

Why is the dispersion effect of different bitumens on SBS different? What is the effect of the oil content of petroleum bitumen and blended bitumen on the dispersion of SBS?

The dispersion effect of different bitumensubstrates on SBS may be due to their different oil content. According to the description in the reference information, the oil content of petroleum bitumenis relatively small, while the oil content of blended bitumenis more. The difference

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