ABSTRACT We present environmentally friendly brake pads produced with three different types of lignin, soda lignin (SL), sulphuric acid lignin (SAL) and heat-treated SAL (HL), as frictional materials to replace phenol formaldehyde resin (PFR, binder) and cashew nut shell liquid (CNSL, filler) in commercial automobile brake pad. Then the performance characteristics of the lignin-added brake pads were tested and compared using several fundamental tests. The results showed that lignin-added brake pads adhered to the SAE standard (0.25) for friction coefficient, which is the primary contributor to the performance of a braking system. In particular, the replacement of PFR with SL demonstrated a better friction coefficient than did replacement with SAL or HL, reaching up to 0.6. On the other hand, when lignin was substituted for CNSL as filler, HL-added brake pads showed a significant improvement in wear resistance of 0.12 g (dust generation) compared to SL and SAL, which had a resistance of approximately 0.25 g. GRAPHICAL ABSTRACT

中文翻译：

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木质素聚合物在汽车刹车片中作为粘合剂和填充材料的适用性及其性能特点

摘要 我们介绍了用三种不同类型的木质素、苏打木质素 (SL)、硫酸木质素 (SAL) 和热处理 SAL (HL) 生产的环保型刹车片，作为摩擦材料来替代酚醛树脂（PFR，粘合剂）和腰果壳油（CNSL，填充剂）用于商用汽车刹车片。然后使用几个基本测试测试和比较添加木质素的刹车片的性能特征。结果表明，添加木质素的刹车片符合 SAE 标准 (0.25) 的摩擦系数，这是制动系统性能的主要贡献者。特别是，用 SL 替代 PFR 表现出比用 SAL 或 HL 替代更好的摩擦系数，达到 0.6。另一方面，当木质素代替 CNSL 作为填料时，与耐磨性约为 0.25 g 的 SL 和 SAL 相比，添加 HL 的刹车片的耐磨性显着提高了 0.12 g（产生灰尘）。图形概要