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首页> 外文期刊>Journal of Polymers and the Environment >Mechanical Properties of Microcrystalline Cellulose (MCC) Filled Engineering Thermoplastic Composites
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Mechanical Properties of Microcrystalline Cellulose (MCC) Filled Engineering Thermoplastic Composites

机译：微晶纤维素（MCC）填充工程热塑性复合材料的力学性能

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摘要

In this study, engineering thermoplastic composites were prepared from microcrystalline cellulose (MCC)-filled nylon 6. MCC were added to nylon 6 using melt mixing to produce compounded pellets. The MCC-filled nylon 6 composites with varying concentrations of MCC (from 2.5 to 30 wt%) were prepared by injection molding. The tensile and flexural properties of the nylon 6 composites were increased significantly with the addition of MCC. The maximum strength and modulus of elasticity for the nylon 6 composites were achieved at a MCC weight fraction of 20 %. The Izod impact strength of composites decreased with the incorporation of MCC without any surface treatments and coupling agent. This observation is quite expected for filled polymer systems and has been commonly observed. There was a strong correlation between density and tensile (r = 0.94) and flexural modulus of elasticity (r = 0.9). MCC filled composites manufactured by injection method' had highly uniform density distribution through their thickness. The higher mechanical results with lower density demonstrate that MCC can be used as a sufficient reinforcing material for low cost, eco-friendly composites in the automotive industry especially for under-the-hood applications (engine covers, intake manifolds and radiator end tanks) as well as in other applications such as the building and construction industries, packaging, consumer products etc.
机译：在这项研究中，由微晶纤维素（MCC）填充的尼龙6制备了工程热塑性复合材料。通过熔融混合将MCC添加到尼龙6中以生产复合粒料。通过注塑制备具有不同浓度的MCC（2.5-30重量％）的MCC填充的尼龙6复合材料。添加MCC后，尼龙6复合材料的拉伸和弯曲性能显着提高。 MCC重量分数为20％时，尼龙6复合材料的最大强度和弹性模量达到了。在没有任何表面处理和偶联剂的情况下，MCC的加入会降低复合材料的悬臂梁冲击强度。对于填充的聚合物体系，这种观察是非常期望的，并且已经被普遍观察到。密度和拉伸强度（r = 0.94）与挠曲弹性模量（r = 0.9）之间存在很强的相关性。通过注射方法制造的MCC填充复合材料在厚度上具有高度均匀的密度分布。较高的机械性能和较低的密度表明，MCC可以用作汽车工业中低成本，环保的复合材料的足够增强材料，尤其是引擎盖下的应用（发动机罩，进气歧管和散热器尾气罐）。以及其他应用，例如建筑业，包装，消费品等。

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