Manufacturing of bio-based thermoplastic composites using industrial process for high-volume applications,Polymer Composites

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Manufacturing of bio-based thermoplastic composites using industrial process for high-volume applications
Polymer Composites ( IF 4.8 ) Pub Date : 2021-09-08 , DOI: 10.1002/pc.26292
Loleï Khoun ₁ , Victor L. Bravo ₁ , Michel F. Champagne ₁

Affiliation

The use of high strength-to-weight ratio materials in automotive component is a solution to reduce fuel consumption and decrease greenhouse gases emissions. Fiber reinforced composite materials are believed to enable weight saving that cannot be achieved with metals while meeting component mechanical requirements. Moreover, the use of renewable bio-based composites is seen as a key aspect to further address the reduction of greenhouse gases emission. However, composite manufacturing process must meet short cycle time, performance, and cost targeted by the transportation industry in order to be considered as replacement materials. This article investigates the use of an industrial compression—direct long fiber thermoplastic (D-LFT) process line to manufacture cellulose reinforced bio-based polyamide parts in order to increase the penetration of sustainable materials in the transportation sectors. Process evaluation and composite performance were first carried out on a simple 2D geometry. Then the use of 100% bio-sourced materials with the high-throughput D-LFT process was validated with the manufacturing of an automotive composite seat pan demonstrator. Bio-based composite parts were successfully manufactured. Tensile properties in the range of glass fiber reinforced polypropylene composites traditionally used with the D-LFT process were measured, validating the potential of cellulose–biopolyamide composite materials for industrial applications.

中文翻译：

使用工业工艺制造生物基热塑性复合材料，用于大批量应用

在汽车部件中使用高强度重量比材料是减少燃料消耗和减少温室气体排放的解决方案。纤维增强复合材料被认为能够在满足部件机械要求的同时减轻金属无法实现的重量。此外，可再生生物基复合材料的使用被视为进一步减少温室气体排放的关键方面。然而，复合材料制造工艺必须满足运输行业的短周期时间、性能和成本目标，才能被视为替代材料。本文研究了使用工业压缩直接长纤维热塑性塑料 (D-LFT) 生产线来制造纤维素增强的生物基聚酰胺部件，以提高可持续材料在交通运输领域的渗透率。工艺评估和复合材料性能首先在简单的 2D 几何体上进行。然后，通过制造汽车复合材料座椅底板演示器验证了使用 100% 生物源材料和高通量 D-LFT 工艺。生物基复合材料部件制造成功。测量了传统上与 D-LFT 工艺一起使用的玻璃纤维增强聚丙烯复合材料范围内的拉伸性能，验证了纤维素-生物聚酰胺复合材料在工业应用中的潜力。

更新日期：2021-11-09

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