Boztoprak Yalçın
Technology Faculty Metallurgy and Materials Engineering, Marmara University, 34722 Istanbul, Turkey.
Polymers (Basel). 2024 Oct 21;16(20):2944. doi: 10.3390/polym16202944.
This study aims to develop a recyclable, economical, and flame-retardant composite material using polypropylene, beech flour, tetrabromobisphenol A bis (TBBPA), and antimony trioxide (ATO). Flame-retardant additives (TBBPA and ATO) were initially added into polypropylene at different rates, and masterbatch (MB) samples were produced by the extrusion method. Subsequently, different percentages of wood flour (10%, 15%, 20%, 25%, and 30%) along with 60% MB were added to the polypropylene to create wood-polymer composites (WPC) using the injection method. The TBBPA, ATO, and wood flour were introduced through side-feeding hoppers during injection to ensure a homogeneous distribution within the WPC. Physical, thermal, and mechanical tests were conducted on the WPC samples. Additionally, TGA, FTIR, and SEM analyses were performed. The results indicated that the optimal ratios for TBBPA and ATO additives were 20% and 10%, respectively. It was observed that increasing the wood flour content in the WPC samples led to enhanced density, water absorption, hardness, impact, and abrasion resistance. Conversely, MFI, bending strength, and tensile strength decreased with higher wood flour content. It was observed that WPC samples exhibited flame resistance up to 725 °C. The produced WPC materials can be used in flooring applications, interior furniture, decorative wall panels, and aesthetic structural elements due to their fire behavior, good mechanical properties, low water-absorption rates, and aesthetic appearance.
本研究旨在使用聚丙烯、山毛榉粉、四溴双酚A双（TBBPA）和三氧化二锑（ATO）开发一种可回收、经济且阻燃的复合材料。首先将阻燃添加剂（TBBPA和ATO）以不同比例添加到聚丙烯中，通过挤出法制备母料（MB）样品。随后，将不同百分比的木粉（10%、15%、20%、25%和30%）与60%的MB一起添加到聚丙烯中，采用注射法制备木塑复合材料（WPC）。在注射过程中通过侧进料斗引入TBBPA、ATO和木粉，以确保在WPC内均匀分布。对WPC样品进行了物理、热学和力学测试。此外，还进行了热重分析（TGA）、傅里叶变换红外光谱分析（FTIR）和扫描电子显微镜分析（SEM）。结果表明，TBBPA和ATO添加剂的最佳比例分别为20%和10%。观察到，WPC样品中木粉含量的增加导致密度、吸水率、硬度、抗冲击性和耐磨性增强。相反，熔体流动指数（MFI）、弯曲强度和拉伸强度随着木粉含量的增加而降低。观察到WPC样品在高达725℃时具有阻燃性。由于其燃烧性能、良好的力学性能、低吸水率和美观的外观，所制备的WPC材料可用于地板应用、室内家具、装饰墙板和美观的结构元件。
