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首页> 外文期刊>Journal of Applied Polymer Science >Specific heats of rubber compounds
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Specific heats of rubber compounds

机译：橡胶化合物的比热

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摘要

The specific heats of rubber compounds are very important not only for the thermodynamic calculations in various rubber processings; mixing, extrusion, calendering, and vulcanization, etc., but also for the service life of the final products under repeated stressing conditions. In this study, the specific heats of various compounding ingredients and their compounds for tires were determined using a differential scanning calorimeter (DSC) in the temperature range from 45 to 95°C. The determined specific heats, Cp, were compared with the previous published results for natural rubber (NR), styrene-butadiene rubber (SBR), polybutadiene rubber (BR), and isoprene-isobutyl rubber (IIR). The effects of carbon black loading and vulcanization on the specifics heats were investigated. The measured specific heats of the compounds were compared with the calculated values based on the fractional summation of the specific heat of each compounding ingredient.
机译：胶料的比热非常重要，不仅对于各种橡胶加工中的热力学计算而言，而且对胶料的比热非常重要。混合，挤压，压延和硫化等，也可以保证最终产品在反复受力条件下的使用寿命。在这项研究中，使用差示扫描量热仪（DSC）在45至95°C的温度范围内确定了各种混合成分及其轮胎胶料的比热。将确定的比热Cp与天然橡胶（NR），丁苯橡胶（SBR），聚丁二烯橡胶（BR）和异戊二烯-异丁基橡胶（IIR）的先前发布的结果进行比较。研究了炭黑负载和硫化对比热的影响。将化合物的测得的比热与基于每种配合成分的比热的分数总和的计算值进行比较。

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