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首页> 外文期刊>Polymer Testing >Influencing factors for vulcanization induction period of accelerator / natural rubber composites: Molecular simulation and experimental study
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Influencing factors for vulcanization induction period of accelerator / natural rubber composites: Molecular simulation and experimental study

机译：加速器/天然橡胶复合材料硫化诱导期的影响因素：分子模拟与实验研究

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摘要

Sulfonamide accelerators are one of the most widely used additives in rubber composites since they can significantly improve the rate of vulcanization process. However, usually the vulcanization induction period of the composites containing sulfonamide accelerators maybe too short, which leads to great potential safety hazards during manufacture process. Combining with experimental and molecular simulation methods, factors affecting the vulcanization induction period could be subdivided into the following items, i.e., the reactivity, the alkalinity, the solubility, the mobility and binding energy of accelerator in rubber composites. It was found that the chemical reactivity of accelerator is the key factor to affect the vulcanization induction period, and the well-dispersion and stability of accelerator in natural rubber could promote the vulcanization induction period reaction. This work may help us better understand the vulcanization induction period influencing factors from a micro-level perspective, and attempts to provide a guidance for screening and design of the new sulfonamide accelerators.
机译：磺酰胺促进剂是橡胶复合材料中最广泛使用的添加剂之一，因为它们可以显着提高硫化过程的速率。然而，通常含有磺酰胺促进剂的复合材料的硫化诱导期可能太短，这在制造过程中导致潜在的安全危险。与实验和分子模拟方法组合，影响硫化诱导时段的因素可以将其橡胶复合材料中加速器的反应性，碱度，溶解度，迁移率和结合能量进行细分。发现加速器的化学反应性是影响硫化诱导期的关键因素，并且天然橡胶促进剂的良好分散和稳定性可以促进硫化诱导期反应。这项工作可以帮助我们更好地了解硫化诱导期的影响因素，并试图提供新的磺胺酰胺促进剂的筛选和设计的指导。

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