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汽车发动机前支架的功能橡胶另件需要满足与防震和消音有关的一系列物理和动态力学性能。就小型发动机而言,因为在宽频率范围内必须防震,可选择高阻尼橡胶。然而,在非常慢的速度下,高阻尼橡胶的传递性随频率降低而降低,并且某些高阻尼橡胶抗蠕变性较差。本报告(?)述新的配方工艺;用配比为87.5/12.5%的氯丁胶和丁腈胶并用胶来获得满足汽车发动机前支架所需的物理、动态力学和蠕变性能的典型技术要求。用 Rheovibron 法在广泛的温度、频率和应变范围下测量了这种共混的动态力学性能,且与其它弹性体如乙稀/丙稀酸类共混胶进行了比较。
Functionality of the front bracket of the car engine The rubber parts need to satisfy a series of physical and dynamic mechanical properties related to earthquake proofing and muffling. In the case of small engines, high damping rubber is available because of the need to prevent shocks over a wide frequency range. However, at very slow speeds, the transmission of high damping rubber decreases with decreasing frequency, and some high damping rubber is less creep resistant. This report (?) Describes the new formulation process; a typical technique for meeting the physical, dynamic and creep properties required for automotive engine front brackets is made of a combination of neoprene and nitrile rubber with a ratio of 87.5 / 12.5% Claim. The dynamic mechanical properties of this blend were measured with the Rheovibron method over a wide range of temperature, frequency and strain ranges and compared to other elastomers such as an ethylene / acrylic blends.