Modification of wood substrates by thin films: a photochemical approach

为了保持竞争力，加拿大木材行业正在寻求通过实施创新和可持续技术来增加其产品组合的价值。具体来说，在二级制造子部门，人们希望提高材料的性能和性能，以提供更耐用和耐腐蚀的产品。研究的一种可能的途径是直接在锯木厂赋予木材基材增强的防水性能，而不是依赖于施工现场使用的依赖于操作人员和可能不适当的涂层。这种上游方法，以提高防水性，预计将产生寿命增加的木材组件。蒙特利尔理工大学最近开发了一种低成本和有效的气相光化学处理技术，称为PICVD（光引发化学气相沉积），可以对各种材料进行表面改性。使用这种方法的初步测试表明，它能够在木材样品表面形成均匀的防水屏障。这个为期12个月的I2I阶段1a项目旨在验证行业预期的一系列要求的性能目标。主要目标包括验证和优化内部和外部木材基材的工艺性能。次要目标旨在评估在实验装置中获得的最终产品的机械和化学概况，以生成更完整的产品数据表。FPInnovations代表木制品制造商进行此项工作，FPInnovations将通过与研究团队分享其在该领域的专业知识并执行分析测试以验证性能目标来支持该项目。该项目的第一阶段的目的是产生足够的数据来证明木材应用技术，并验证木材产品制造商对这种低成本和高效的新工艺的兴趣。如果成功，这项工作将大大有利于加拿大的木材部门，增加现有产品组合的价值，并可能在几个层面上创造就业机会。

To maintain its competitiveness, the Canadian wood industry is seeking to add value to its product portfolio through the implementation of innovative and sustainable technologies. Specifically, in the secondary manufacturing sub sector, there is a desire to improve material performance and properties in order to offer more durable and resistant products. One of the possible avenues investigated is to impart enhanced water barrier properties to wood substrates directly at the sawmill, rather than relying on operator-dependent and potentially improper coatings applied at the construction site. Such an upstream approach to improve water repellency is expected to yield increased lifespans for wood components. Polytechnique Montreal has recently developed a low-cost and effective gas-phase, photochemical treatment technology called PICVD (photo-initiated chemical vapour deposition), that allows the surface modification of a variety of materials. Preliminary tests using this approach have demonstrated its ability to form a uniform water repellent barrier on the surface of wood samples. This 12-month I2I Phase 1a project aims at validating a series of required performance objectives expected by the industry. Primary objectives include validating and optimizing the performances of the process for interior and exterior wood substrates. Secondary objectives aim to assess the mechanical and chemical profiles of the end product obtained in an experimental setup, to generate a more complete product data sheet. Wood products manufacturers are represented for the purposes of this work by FPInnovations, who will support this project by sharing its expertise in the field with the research team and performing analytical testing to validate performance objectives. The aim of this first phase of the project is to generate enough data to demonstrate the technology for wood applications and validate the interest of wood products manufacturers for this low-cost and efficient novel process. If successful, this work will significantly benefit Canada's wood sector, adding value to the existing product portfolio and potentially generating employment at several levels.