SBIR Phase I: Bamboo-based Composite Filaments for Structural Purposes

SBIR 第一阶段：用于结构用途的竹基复合长丝

• 批准号: 2051270
• 负责人: Austin Trefes
• 金额: $ 25.6万
• 依托单位: PANDA INDUSTRIES INC.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-04-01 至 2022-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2051270&HistoricalAwards=false
• 关键词: SBIR; Phase; Bamboo; based; Composite

The broader impact/commercial potential of this SBIR Phase I project is to promote environmentally sustainable construction. By promoting the use of bamboo in construction industry via offering a sustainable alternative to 3D printed concrete, this project intends to reduce industry's contribution towards future carbon dioxide (CO2) emissions. Current trends show that 3D printing could replace a large share of construction industry due to high efficiency, low labor, and reduced material requirements. This project would speed that transition with its sustainable alternative to concrete. Since bamboo can absorb as much as 12 tons of carbon dioxide per hectare per year, compared to 6.4 tons for a mature forest, broader use of bamboo in the construction industry benefits the environment. This SBIR Phase I project is focused on creating a structural bamboo filament that could replace 3D printer filaments made of concrete. This project will use bamboo for a rival filament to concrete to be used in structural applications. Non-structural wood filaments already exist and are mixed with Polylactic-Acid (PLA). This project plans to incorporate some of those techniques in its design by breaking the bamboo into rectangular, dust-like particles for combination with a soy-based adhesive and PLA. The most challenging problems anticipated in this project are optimizing that glue ratio to maximize spread properties and ultimate strength, and orienting the anisotropic bamboo particles during the deposition. The project aims to produce a bamboo filament that maintains similar properties to concrete filaments in terms of strength and durability by the end of Phase I.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

SBIR第一阶段项目的更广泛影响/商业潜力是促进环境可持续建设。通过提供3D打印混凝土的可持续替代方案，通过在建筑行业推广竹子的使用，该项目旨在减少行业对未来二氧化碳(CO2)排放的贡献。目前的趋势表明，3D打印由于效率高、劳动力少、材料需求少，可以取代建筑行业的很大份额。该项目将以其可持续的混凝土替代品加快这一过渡。由于竹子每年每公顷可以吸收多达12吨二氧化碳，相比之下，成熟森林的二氧化碳吸收能力为6.4吨，因此在建筑业中更广泛地使用竹子有利于环境。这个SBIR一期项目专注于创造一种结构性竹丝，可以取代混凝土制成的3D打印机长丝。该项目将使用竹子作为结构应用中使用的混凝土的竞争对手。非结构木丝已经存在，并与聚乳酸(PLA)混合。该项目计划在设计中融入其中的一些技术，将竹子分解成长方形的粉尘状颗粒，然后与大豆基粘合剂和聚乳酸结合使用。本项目预计最具挑战性的问题是优化胶比以最大限度地提高铺展性能和极限强度，以及在沉积过程中定向各向异性竹子颗粒。该项目的目标是在第一阶段结束前生产出一种竹纤维，在强度和耐久性方面保持与混凝土纤维相似的特性。该奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。