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首页> 外文会议>49th International wood composites symposium >Cellulose Fibre Reinforced Composites for the Automotive Industry
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Cellulose Fibre Reinforced Composites for the Automotive Industry

机译：用于汽车行业的纤维素纤维增强复合材料

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Bio-based materials and, in particular, cellulose-based fibres have been used in variousrnindustries as a reinforcing material for composites to reduce weight, cost andrnenvironmental impact. These fibres can have the added benefit of producing stiffness-toweightrnratios equivalent to those of composites reinforced with glass fibres. The use ofrncellulosic fibres presents a number of processing challenges that include feeding them intorncompounding equipment, mixing and dispersing them into the polymer matrix byrnthoroughly selecting the processing equipment and operating conditions in order torneffectively de-bundle and uniformly distribute the fibres throughout the entire volume of arncomposite part. Other challenges for cellulosic fibres are their incompatibility with somernthermoplastics and the processing temperature limitations determined by their propensityrnto thermally degrade after long exposure times. This paper presents the results obtainedrnfrom the processing of two types of natural fibres used as reinforcements for polypropylenern(PP) and polyamide-6 (PA6) matrices.rnThe Direct-Long Fibre Thermoplastic (D-LFT) continuous process was used for thernresearch work. The D-LFT experimental line consists of a 70 mm intermeshing co-rotatingrntwin screw compounder and a 2,500 ton hydraulic press with actively controlled parallelrnmotion system. The materials were compounded and moulded to produce parts forrncharacterization. Different formulations using heat stabilizers, antioxidants and couplingrnagents were implemented with the objective of improving the intrinsic properties of thernmaterials in order to meet industry standards. Results show the performance of cellulosicrnfibres in comparison with traditional glass fibre reinforced PP composites.
机译：生物基材料，尤其是纤维素基纤维已在各种工业中用作复合材料的增强材料，以减轻重量，降低成本并减少对环境的影响。这些纤维具有产生与玻璃纤维增​​强复合材料相同的刚度-重量比的额外好处。纤维素纤维的使用带来了许多加工挑战，包括将它们喂入混合设备中，通过充分选择加工设备和操作条件将它们混合并分散到聚合物基质中，以便有效地将纤维解束并均匀地分布在整个纤维复合材料中部分。纤维素纤维的其他挑战是它们与某些热塑性塑料的不相容性，以及加工温度的限制，取决于其在长时间暴露后热降解的倾向。本文介绍了通过加工两种天然纤维作为聚丙烯（PP）和聚酰胺6（PA6）增强材料的结果。直接长纤维热塑性塑料（D-LFT）连续过程用于研究工作。 D-LFT实验生产线由70毫米相互啮合的同向旋转双螺杆混料机和2500吨带主动控制平行运动系统的液压机组成。将这些材料混合并成型以生产零件。实施了使用热稳定剂，抗氧化剂和偶联剂的不同配方，目的是提高材料的内在性能，以满足行业标准。结果表明，与传统的玻璃纤维增​​强PP复合材料相比，纤维素纤维的性能更高。

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