Vacuum insulation panels (VIPs) with zeolite-fiber composite core

具有沸石纤维复合芯的真空绝热板 (VIP)

• 批准号: 491180-2015
• 负责人: Mukhopadhyaya, Phalguni
• 金额: $ 2.55万
• 依托单位: University of Victoria
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2016
• 资助国家: 加拿大
• 起止时间: 2016-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=601604
• 关键词: Vacuum; insulation; panels; VIPs; zeolite

National Energy Code of Canada for Buildings (NECB), introduced in 2011 and subsequently adopted by BC in 2013, has created new opportunities for the construction industry and its stakeholders. The application and performance of thermal insulation play critically important roles in determining energy efficiency of built environment. The thermal insulating capacity of Vacuum Insulation Panels (VIPs) is 5 to 10 times higher than traditional (i.e. fiberous or foam) thermal insulations. However, the mass application of VIPs in building envelope construction industry is restricted by the cost factor and uncertainty regarding long-term performance. The performance and cost of VIPs are significantly influenced by the constituting core materials. The traditional core materials used for VIPs are fumed silica, precipitated silica and glass fibers. While fumed and precipitated silica based VIPs have superior service life, a required criterion for application of VIPs in building envelope construction, but they are comparatively expensive. On the other hand the effective cost of glass fiber based VIPs is comparable with traditional thermal insulations but service life of glass fiber based VIPs, available at this moment, is shorter. The shorter life span due to rapid aging of glass fiber core based VIPs is attributed to its microporous structure, unlike fumed and precipitated silica which are nano-porous. Hence, the development of alternative core materials that can reduce the cost without compromising effective service life is a priority for the thermal insulation industry, particularly concentrating on building envelope construction. Preliminary research shows that fiber-powder composites, consisting of glass/mineral fiber and Zeolite/Pumice powder, have basic thermal characteristics comparable with nano-porous fumed or precipitated silica but can be produced at a cost comparable with traditional insulation materials. These findings open new opportunities for the development of alternative core materials for VIPs. The proposed research project plans to take this concept further and work on the development of alternative core materials using locally (i.e. BC) available Zeolite powder. The researchers based at UVic will work with the researchers from the ZMM® Canada Mineral Corp., a clean technology company created specifically to provide unique, valuable and innovative natural Zeolite products and solutions, to develop Zeoloite composite core based cost-effective VIPs for building envelope applications.

2011年推出并于2013年被BC省采用的《加拿大国家建筑物能源法规》（NECB）为建筑业及其利益相关者创造了新的机会。保温材料的应用和性能在决定建筑环境的能源效率方面起着至关重要的作用。真空绝热板（VIP）的绝热能力比传统（即纤维或泡沫）绝热材料高5至10倍。然而，VIP在建筑围护结构行业的大量应用受到成本因素和长期性能不确定性的限制。组成芯材的材料对VIP的性能和成本有很大的影响。用于VIP的传统芯材是气相二氧化硅、沉淀二氧化硅和玻璃纤维。虽然气相二氧化硅和沉淀二氧化硅基VIP具有上级使用寿命，这是VIP在建筑围护结构中应用的要求标准，但它们相对昂贵。另一方面，基于玻璃纤维的VIP的有效成本与传统隔热材料相当，但是目前可用的基于玻璃纤维的VIP的使用寿命较短。基于玻璃纤维芯的VIP由于快速老化而导致的较短寿命归因于其微孔结构，而不像气相二氧化硅和沉淀二氧化硅是纳米多孔的。因此，开发能够降低成本而不影响有效使用寿命的替代芯材是隔热行业的优先事项，特别是集中在建筑围护结构上。初步研究表明，由玻璃/矿物纤维和沸石/浮石粉组成的纤维-粉末复合材料具有与纳米多孔气相二氧化硅或沉淀二氧化硅相当的基本热特性，但可以以与传统绝缘材料相当的成本生产。这些发现为VIP替代核心材料的开发提供了新的机会。拟议的研究项目计划进一步推进这一概念，并利用当地（即不列颠哥伦比亚省）现有的沸石粉开发替代性堆芯材料。UVic的研究人员将与ZMM® Canada Mineral Corp.的研究人员合作，一家清洁技术公司，专门提供独特的，有价值的和创新的天然沸石产品和解决方案，开发基于沸石复合芯的成本效益的VIP，用于建筑围护结构应用。