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首页> 外文期刊>Journal of industrial and engineering chemistry >Static and dynamic comfort properties of polyurethane foams including a flexible amine crosslinker
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Static and dynamic comfort properties of polyurethane foams including a flexible amine crosslinker

机译：聚氨酯泡沫的静态和动态舒适性，包括柔性胺交联剂

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摘要

Flexible polyurethane (PU) foams are widely used in various automobile products for seat cushioning, sound absorbing, and heat insulating purposes. The PU foams were fabricated by applying hydroxyl and amine types of crosslinking agents in order to examine the static and dynamic comfort properties. The bis (hexamethylene)triamine (BHMTA) crosslinker produced the largest cell and pore sizes due to the highest drainage flow rate, but the diethylenetriamine (DETA) crosslinker led to the smallest sizes due to the increased reactivity and hydrogen bonding. The cell wall area ratio resulted in the highest with the DETA and the lowest with the BHMTA, and this cell wall area has a strong relation with the hysteresis loss (low with BHMTA vs. high with DETA). The sag factor was the highest with the BHMTA due to the lowest stress value at 25% strain. The vibration transmissibility was the lowest with the BHMTA crosslinker due to the lowest cell wall area ratio. Therefore, it is critical to choose a proper crosslinking agent in fabrications of the flexible PU foams for superior static and dynamic comfort properties. (C) 2020 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
机译：柔性聚氨酯（PU）泡沫广泛用于各种汽车产品，用于座垫，吸音和隔热目的。通过施加羟基和胺类型的交联剂来制造PU泡沫以检查静态和动态舒适性。双（六亚甲基）三胺（BHMTA）交联剂由于最高排水流速而产生最大的细胞和孔径，但由于反应性和氢键增加，二亚乙基三胺（DETA）交联剂导致最小尺寸。电池壁面积比率最高，与BHMTA最低，并且该细胞壁区域与滞后损失有很强的关系（用BHMTA与弯管高。由于25％应变为25％的应力值，SAG因子具有最高的BHMTA。由于最低的电池壁面积比，振动传动率与BHMTA交联剂最低。因此，在柔性PU泡沫的制造中选择合适的交联剂至关重要，用于卓越的静态和动态舒适性。 （c）2020朝鲜工业与工程化学学会。 elsevier b.v出版。保留所有权利。

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