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首页> 外文期刊>Environment and Ecology Research >The Influence of Chemically Pre-treated Chestnut Waste and Pinecone Filler Content on the Properties of Polyester Composites
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The Influence of Chemically Pre-treated Chestnut Waste and Pinecone Filler Content on the Properties of Polyester Composites

机译：化学预处理栗子废料和松果填料含量对聚酯复合材料性能的影响

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There is critical concern about meeting future global demand for materials because of the depletion of natural resources. In particular, the balance between future demand and sustainable supply will require a great deal of attention in years to come. The interest in the long term sustainability of material resources has led to advancements in bio-composite or polymer composite materials that are made from natural fibers and resin. Pinecones and chestnut waste are most often used as the biomass/biochar source. Nature proposes, and man disposes; we have to find or create new forms of pinecone and chestnut waste to increase their value and for environmental reasons. That is why the current waste was processed and transformed to filler in an up-graded state. In this study, composites were manufactured using chestnut waste and pinecone powder as filler and polyester as the polymer matrix. In addition, methyl ethyl ketone peroxide as hardener and cobalt naphthenate as accelerator were used to produce polyester composite. Raw materials of the fillers were treated with sodium hydroxide solution. The polyester amount was kept constant while the filler ratio was increased from 3% to 12% by weight. The similarities and differences between composites with different fillers and chemical pre-treatments were assessed by evaluating certain mechanical properties such as flexural strength, elastic modulus and hardness and various physical features such as density, open porosity percentage and water absorption. According to the experimental results, increasing the ratio of both chestnut and pinecone powder led to a decrease in the bending strength and an increase in the elastic modulus. Higher properties were associated with the chestnut waste/polyester composite than the pinecone powder/polyester composite.
机译：由于自然资源的枯竭，对满足未来全球对材料的需求至关重要。特别是，未来需求与可持续供应之间的平衡将在未来几年中引起大量关注。对材料资源的长期可持续性的关注导致了由天然纤维和树脂制成的生物复合材料或聚合物复合材料的发展。松果和栗子废料最常用作生物质/生物炭的来源。大自然提议，人类处置;我们必须寻找或创造新形式的松果和栗子废料，以增加其价值并出于环境原因。这就是为什么目前的废物经过处理并以升级状态转化为填料的原因。在这项研究中，复合材料是用栗子废料和松果粉作为填充剂，聚酯作为聚合物基体制成的。另外，用过氧化甲乙酮作硬化剂，用环烷酸钴作促进剂生产聚酯复合材料。填料的原料用氢氧化钠溶液处理。聚酯量保持恒定，而填料比率从3重量％增加到12重量％。通过评估某些机械性能（例如弯曲强度，弹性模量和硬度）以及各种物理特性（例如密度，开孔率和吸水率），可以评估具有不同填料和化学预处理的复合材料之间的异同。根据实验结果，增加栗子和松果粉的比​​例会导致抗弯强度的降低和弹性模量的提高。栗子废料/聚酯复合材料比松果酮粉末/聚酯复合材料具有更高的性能。

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