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首页> 外文期刊>Journal of Applied Polymer Science >Using a silanized silica nanofiller to reduce excessive amount of rubber curatives in styrene-butadiene rubber
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Using a silanized silica nanofiller to reduce excessive amount of rubber curatives in styrene-butadiene rubber

机译：使用硅烷化的二氧化硅纳米填料来减少丁苯橡胶中过量的橡胶硫化剂

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摘要

In recent years, the rubber industry has come under pressure to improve health and safety at work, minimize damage to the environment, reduce costs, and increase competitiveness. Rubber compounds contain additives including curing chemicals, which are hazardous and harmful. Reducing their use or eliminating them altogether will be beneficial to rubber compounders and manufacturers of rubber articles. A styrene-butadiene rubber (SBR) was cured and reinforced with a high loading of precipitated amorphous white silica nanofiller. The silica surfaces were pretreated with bis(3-triethoxysilylpropyl) tetrasulfide (TESPT), which is a sulfur-bearing bifunctional organosilane to chemically adhere silica to the rubber. The chemical bonding between the filler and rubber was optimized via the tetrasulfane groups of TESPT by adding accelerator and activator. The rubbers were subsequently cured and their hardness, tensile strength, elongation at break, stored energy density at break, tearing energy, tensile modulus, Young's modulus, and bound rubber content were measured. This study showed that using the filler in combination with a sulfur-donor accelerator was the most efficient method for curing and reinforcing the rubber. This led to a significant reduction in the use of the curing chemicals, a faster curing cycle, and very good mechanical properties for the rubber vulcanizate.
机译：近年来，橡胶行业承受着改善工作中的健康和安全，最大程度地减少对环境的破坏，降低成本并提高竞争力的压力。橡胶化合物包含有害和有害的添加剂，包括硫化剂。减少它们的使用或完全消除它们对橡胶混合商和橡胶制品制造商将是有益的。使用大量沉淀的无定形白色二氧化硅纳米填料，对丁苯橡胶（SBR）进行固化和增强。二氧化硅表面用双（3-三乙氧基甲硅烷基丙基）四硫化物（TESPT）进行预处理，后者是一种含硫的双官能有机硅烷，可将二氧化硅化学粘合到橡胶上。填料和橡胶之间的化学键合通过添加促进剂和活化剂的TESPT的四硫基进行了优化。随后将橡胶固化，并测量它们的硬度，抗张强度，断裂伸长率，断裂时的储能密度，撕裂能，拉伸模量，杨氏模量和结合橡胶含量。这项研究表明，将填料与硫供体促进剂结合使用是硫化和增强橡胶的最有效方法。这大大减少了硫化化学品的使用，加快了硫化周期，并为橡胶硫化橡胶提供了非常好的机械性能。

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