Advanced multi-phase rubber foams

先进的多相橡胶泡沫

• 批准号: 542974-2019
• 负责人: Rodrigue, Denis
• 金额: $ 4.36万
• 依托单位: Université Laval
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=699416
• 关键词: Advanced; multi; phase; rubber; foams

CAMSO is a world leader in the design and manufacture of rubber tires and tracks for off-road/all-terrain vehicles used in agriculture, construction, material handling and all kinds of recreational products. To improve its position towards its international competitors, the development of more efficient, sustainable and less expensive products is a priority. So the main objective of this project is to improve two important properties: weight and mechanical performances of rubber-based products. But these improvements must be made while minimizing the raw material and manufacturing costs. A sub-objective is to understand how foaming (introduction of gas bubbles) in a rubber formulation can modify these properties. This will be investigated using two approaches: experiments and numerical simulations. To this end, optimization of the formulation (components and concentrations) and molding conditions (pressure, temperature, time) will be performed at the laboratory scale (small samples) and the best results will be transferred to the industrial partner (field conditions). The main challenge is to match the foaming and curing kinetics so they are occurring at the same time, but the chemical reactions involved are competitive. The main novelty of the work is to produce and compare different foam morphologies (cells size, density and geometry) and their effect on the overall rubber performances. This can be done using homogeneous samples (one layer = uniform density) or multilayers (density graded = density profile) to determine the effect of material/void distribution to control the materials properties, mainly through density reduction. Finally, cost-effective products will help CAMSO to remain a leader in the field of off-the-road tires and tracks. It is expected that the results will also have an environmental impact as the production of lower density materials will lead to lower fuel consumption and a reduction of greenhouse gas emission. The production of more resilient parts will also extend the life (service time) of the resulting products through improved performances.

CAMSO是世界领先的设计和制造橡胶轮胎和履带的越野/全地形车辆用于农业，建筑，物料搬运和各种娱乐产品。为了提高其相对于国际竞争对手的地位，开发更高效、可持续和更便宜的产品是一个优先事项。因此，本项目的主要目标是改善橡胶基产品的两个重要性能：重量和机械性能。但这些改进必须在最小化原材料和制造成本的同时进行。次要目标是了解橡胶配方中的发泡（引入气泡）如何改变这些特性。这将使用两种方法进行调查：实验和数值模拟。为此，配方（成分和浓度）和成型条件（压力、温度、时间）的优化将在实验室规模（小样本）进行，最佳结果将转移给工业合作伙伴（现场条件）。主要的挑战是匹配发泡和固化动力学，使它们同时发生，但所涉及的化学反应是竞争性的。这项工作的主要新颖之处在于生产和比较不同的泡沫形态（细胞大小、密度和几何形状）及其对橡胶整体性能的影响。这可以使用均匀样品（单层=均匀密度）或多层（密度梯度=密度剖面）来确定材料/空隙分布的影响，以控制材料性能，主要是通过降低密度。最后，高性价比的产品将帮助CAMSO在越野轮胎和履带领域保持领先地位。预计这一结果也将对环境产生影响，因为低密度材料的生产将导致更低的燃料消耗和温室气体排放的减少。生产更具弹性的部件也将通过改进性能来延长产品的使用寿命（使用时间）。