Bouzidi K, Chaussy D, Gandini A, Bongiovanni R, Beneventi D
Univ. Grenoble Alpes, CNRS, Grenoble INP (Institute of engineering Univ. Grenoble Alpes), LGP2, 38000 Grenoble, France.
Univ. Grenoble Alpes, CNRS, Grenoble INP (Institute of engineering Univ. Grenoble Alpes), LGP2, 38000 Grenoble, France.
Carbohydr Polym. 2022 Oct 1;293:119716. doi: 10.1016/j.carbpol.2022.119716. Epub 2022 Jun 9.
Nowadays, composite materials are widely used in different sectors owing to their improved mechanical and functional properties compared to bulk materials and efficient manufacturing processes. Nevertheless, the majority of these materials are still petroleum-based, which is incompatible with the recent environmental awareness. As a result, in the current study, a fully biomass-based composite material was produced employing poly(furfuryl alcohol) (PFA) as a bio-based matrix coupled with cellulose powder as fillers and processing aid agent. The addition of cellulose powder increased the viscosity of the uncured composite paste and conferred it a shear-thinning thixotropic making it suitable for 3D printing using the liquid deposition modeling technique (LDM). After curing, the combination of these raw materials yields a renewable and cost-effective composite for additive manufacturing by the LDM technique with high interlayer and interfilament adhesion, good mechanical performances, and adequate shape fidelity.
如今，复合材料因其与块状材料相比具有改进的机械性能和功能特性以及高效的制造工艺而被广泛应用于不同领域。然而，这些材料中的大多数仍然是以石油为基础的，这与最近的环保意识不相容。因此，在当前的研究中，采用聚糠醇（PFA）作为生物基基体，结合纤维素粉末作为填料和加工助剂，制备了一种完全基于生物质的复合材料。纤维素粉末的添加增加了未固化复合浆料的粘度，并赋予其剪切变稀的触变性，使其适用于使用液体沉积建模技术（LDM）进行3D打印。固化后，这些原材料的组合产生了一种可再生且经济高效的复合材料，可通过LDM技术进行增材制造，具有高的层间和丝间附着力、良好的机械性能以及足够的形状保真度。
