Thermal and Mechanical Properties of Recyclable Composites Prepared from Bio-Olefins and Industrial Waste
Thermal and Mechanical Properties of Recyclable Composites Prepared from Bio-Olefins and Industrial Waste
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DOI：
10.3390/jcs7060248
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发表时间：
2023-06
影响因子：
3.3
通讯作者：
Perla Y. Sauceda-Oloño;A. Borbón-Almada;Martin Gaxiola;Ashlyn D. Smith;Andrew G. Tennyson;Rhett C. Smith
中科院分区：
文献类型：
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作者：
Perla Y. Sauceda-Oloño;A. Borbón-Almada;Martin Gaxiola;Ashlyn D. Smith;Andrew G. Tennyson;Rhett C. Smith
普通波特兰水泥(OPC)的生产消耗了大量的淡水和能源，并向大气中排放了大量的二氧化碳。OPC的替代产品不需要水，排放的二氧化碳很少，消耗的能源更少，这不仅代表着追求工业脱碳的变革性进展，而且更多的安全饮用水将导致公共卫生的显著改善，特别是在受污染供水风险最大的弱势人群中。然而，要在任何有意义的规模上采用任何OPC替代方案，其结构能力必须达到或超过OPC。棕色润滑脂、葵花籽油和元素硫(重量比为5：5：90)的逆硫化被成功地改进，以提供数量为1公斤的高硫材料SunBG90，这是标准化ASTM和ISO测试所必需的。与OPC相比，SunBG90的吸水率(ASTMC140)和导热系数(ISO8302)分别降低了84%和94%，说明SunBG90比OPC具有更好的抗冻融和热应力破坏能力。−1·K−1的吸水率为1wt%，导热系数为0.126 W·m。因此，SunBG90不仅是一种比OPC更环保的材料，而且其优异的热机械性能表明，它本身可能是一种更环保的材料，特别是对于需要大量暴露在水中和季节性或昼夜温度波动的户外结构应用。
Ordinary Portland Cement (OPC) production consumes tremendous amounts of fresh water and energy and releases vast quantities of CO2 into the atmosphere. Not only would an alternative to OPC whose production requires no water, releases little CO2, and consumes less energy represent a transformative advance in the pursuit of industrial decarbonization, but the greater availability of safe drinking water would lead to significantly improved public health, particularly among vulnerable populations most at risk from contaminated water supply. For any OPC alternative to be adopted on any meaningful scale, however, its structural capabilities must meet or exceed those of OPC. An inverse vulcanization of brown grease, sunflower oil, and elemental sulfur (5:5:90 weight ratio) was successfully modified to afford the high-sulfur-content material SunBG90 in quantities > 1 kg, as was necessary for standardized ASTM and ISO testing. Water absorption (ASTM C140) and thermal conductivity (ISO 8302) values for SunBG90 (<1 wt% and 0.126 W·m−1·K−1, respectively) were 84% and 94% lower than those for OPC, respectively, suggesting that SunBG90 would be more resistant against freeze-thaw and thermal stress damage than OPC. Consequently, not only does SunBG90 represent a more environmentally friendly material than OPC, but its superior thermomechanical properties suggest that it could be a more environmentally robust material on its own merits, particularly for outdoor structural applications involving significant exposure to water and seasonal or day/night temperature swings.