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.

加拿大的塑料行业是一个多面积的行业，价值超过5009亿美元，拥有3,757多家公司和171,000名工人[加拿大塑料工业协会（CPIA）]。对聚合物的环境影响的越来越关注，鼓励塑料工业生产可生物降解的产品。但是，由于缺乏适当的功能或加工性挑战，现有的可生物降解聚合物不符合许多应用的要求。基于聚合物的多层产品是将可生物降解的材料纳入部分或完全可生物降解的产品的可行选择，同时引入功能，例如刺激响应性，影响，光学特性和屏障性质。由于产品设计和流程中的现有挑战，高级多层产品的开发仍处于起步阶段。 为了应对这些挑战，该研究计划的长期目标是开发增值的可生物降解多层产品。这将通过理解结构过程中的关系并制定最佳处理策略来实现。该目标在开发高级功能化多层产品方面为加拿大的经济提供了服务，并在制造这些产品时引入了新的加工策略。加拿大公司，包括沙哑的注塑系统，Solvay，Shawcor，Ingenia和Solegear都对解决此类挑战感兴趣。 该程序的短期目标（STO）如下：STO1通过将温度，压力，pH和光响应层与工程的微型和纳米结构结合在一起来开发先进的功能多层产品。该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（例如滑板，次要流，界面层不均匀性）来开发最佳的处理实践； （ii）界面强度是物质，过程和设计参数的函数。 STO3以研究和建模简单且复杂的几何形状中制造的高级多层产品（I）的结构过程中的关系； （ii）在线性和非线性粘弹性区域中； （iii）毗邻弹性和塑料壁。 拟议的研究计划将通过与研究生和本科生互动来为七个HQP培训。我们的研究团队将使用先进的实验技术（例如流变实验，可视化和表征实验），通过开发严格的流变学模型来研究丰富的研究主题。拟议的研究不仅对于开发先进的功能化产品也很重要，而且对于寻找生产环境友好产品的实用解决方案。这样的发展将使加拿大的塑料行业受益，尤其是在安大略省，并将增强其在全球市场的竞争力。