Investigation of Rheology and Processing of Multilayer Polymer-Based Products

多层聚合物产品的流变学和加工研究

• 批准号: RGPIN-2019-05344
• 负责人: Behzadfar, Ehsan
• 金额: $ 2.04万
• 依托单位: Ryerson University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 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=715502
• 关键词: Investigation; Rheology; Processing; Multilayer; Polymer

Canada's plastic industry is a multi-faceted sector worth more than $50.9 billion with over 3,757 companies and 171,000 workers [Canadian Plastics Industry Association (CPIA)]. Growing concerns about the environmental impacts of polymers have encouraged the plastic industry to produce biodegradable products. However, existing biodegradable polymers do not meet the requirements for many applications due to the lack of proper functionality or processability challenges. Polymer-based multilayer products are a viable option to incorporate biodegradable materials to produce partially or fully biodegradable products while introducing functionalities such as stimuli responsiveness, impact, optical properties, and barrier properties to the material. The development of advanced multilayer products is at its infancy due to existing challenges in product design and process. To address these challenges, the long-term goal of this research program is to develop value-added biodegradable multilayer products. This will be achieved through understanding structure-process-properties relationships and developing best processing strategies. This objective serves Canada's economy in terms of developing advanced functionalized multilayer products and introducing new processing strategies in manufacturing these products. Canadian companies including Husky Injection Molding Systems, Solvay, Shawcor, Ingenia and Solegear are interested in resolving such challenges. The short-term objectives (STO's) of this program are as follows: STO1-To develop advanced functional multilayer products by incorporating temperature, pressure, pH and light responsive layers with engineered micro and nanostructures. The focus of this STO will be on the use of biopolymers. STO2-To develop best processing practices through quantifying (i) viscoelastic instabilities such as slippage, secondary flows, interfacial layer nonuniformity; and (ii) interfacial strength as a function of material, process, and design parameters. STO3-To investigate and model the structure-process-property relationship of the fabricated advanced multilayer products (i) in simple and complex geometries; (ii) in linear and non-linear viscoelastic regions; and (iii) adjacent to elastic and plastic-walls. The proposed research program will contribute to the training of seven HQP by engaging both graduate and undergraduate students. Our research team will investigate the rich research topics by developing rigorous rheological models, using advanced experimental techniques (e.g. rheological experimentation, visualization, and characterization experiments). The proposed research is important not only to develop advanced functionalized products but also, to find practical solutions to produce environment-friendly products. Such a development will benefit Canada's plastics industry, more particularly in Ontario, and will strengthen their competitiveness in the global markets.

加拿大的塑料工业是一个多方面的行业，价值超过509亿美元，拥有3757家公司和171,000名工人[加拿大塑料工业协会(CPIA)]。对聚合物对环境影响的日益关注鼓励塑料行业生产可生物降解的产品。然而，现有的可生物降解聚合物由于缺乏适当的官能化或加工性挑战，不能满足许多应用的要求。基于聚合物的多层产品是一种可行的选择，可以加入可生物降解材料来生产部分或完全可生物降解的产品，同时向材料引入刺激响应性、冲击、光学性能和阻隔性能等功能。由于产品设计和工艺方面的挑战，先进的多层产品的开发还处于初级阶段。 为了应对这些挑战，这项研究计划的长期目标是开发增值的可生物降解多层产品。这将通过了解结构-工艺-性能关系和制定最佳加工策略来实现。这一目标在开发先进的功能化多层产品方面服务于加拿大经济，并在制造这些产品时引入新的加工策略。包括赫斯基注塑系统公司、索尔维、ShawCor、雌驼龙和Solegear在内的加拿大公司都有兴趣解决这些挑战。 该计划的短期目标(STO)如下：STO1-通过将温度、压力、pH和光响应层与工程微结构和纳米结构相结合，开发先进的功能多层产品。这次STO的重点将放在生物聚合物的使用上。STO2-通过量化(I)粘弹性不稳定性，如滑移、二次流动、界面层不均匀；以及(Ii)界面强度作为材料、工艺和设计参数的函数，开发最佳加工实践。STO3-研究和模拟制造的先进多层产品的结构-工艺-性能关系(I)简单和复杂的几何结构；(Ii)线性和非线性粘弹性区域；以及(Iii)邻近弹性和塑料壁面。 拟议的研究计划将通过聘用研究生和本科生来帮助培训七名HQP。我们的研究团队将利用先进的实验技术(例如，流变学实验、可视化和表征实验)，通过开发严格的流变模型来研究丰富的研究主题。这项研究不仅对开发先进的功能化产品具有重要意义，而且对寻找生产环境友好型产品的实用解决方案具有重要意义。这一发展将使加拿大的塑料工业受益，尤其是安大略省的塑料工业，并将增强其在全球市场的竞争力。