Development of novel formulations with odor suppression effects for wood treatment

加拿大是森林资源最丰富的国家之一。木制品具有天然、可再生的特点，深受广大用户的欢迎。然而，如果没有适当的处理，木制品，特别是户外应用，如电线杆，铁路领带和建筑材料，很容易被高湿度，昆虫，真菌和细菌破坏。为了延长这些木制品的使用寿命，防腐处理是保护木制品免受变质剂影响的关键。最常用的保存方法是压力处理过程，其中木制品被防腐剂化学物质淹没，然后进行一些压力-真空循环，迫使化学物质渗透到木材的细胞结构中。这些化学物质可以防止风化、昆虫、细菌和真菌。杂酚油和五氯酚是优良的木材防腐剂，一旦浸泡在木制品中，它们在木材之间形成屏障，破坏生物和昆虫，延长木制品的使用寿命。然而，这些类型的防腐剂有令人不快的气味，引起健康和环境问题。本项目旨在通过添加廉价的生物基添加剂，开发具有抑制气味效果的新型木材保存配方。生物基气味抑制剂将被合成，添加到处理溶液中，并在压力木材处理过程中进行测试。由此产生的新配方将大大减少木材处理操作中的气味，但也有利于木材产品的最终用户。此外，木材处理行业将节省安装恶臭气体洗涤器所需的资本投资。这项研究的预期结果将对加拿大经济产生层叠效应，从制造高质量的木材产品到为加拿大更可持续、更环保的木材保存行业铺平道路。

Canada is one of the countries with the richest forest resources. Wood products are natural, renewable andhighly welcomed by a variety of users. However, without proper treatment, wood products, particularly foroutdoor applications such as utility poles, railway ties and construction materials, are easily destroyed by highmoisture, insects, fungi and bacteria. In order to extend the lifespan of these wood products, a preservationtreatment is critical to protect the wood products from deterioration agents. The most commonly usedpreservation approach is a pressure treatment process, in which wood products are flooded by preservativechemicals, followed by a few pressure-vacuum cycles, forcing the chemicals to penetrate into the cellularstructure of the wood. These chemicals protect against weathering, insects, bacteria and fungi. Creosote andpentachlorophenol are excellent wood preservatives, once soaked into wood product, they form a barrierbetween the wood, the destroying organisms and insects, extending the lifespan of wood products. However,these types of preservatives have unpleasant odors causing both health and environmental concerns.This project aims to develop novel wood preserving formulations with odor suppression effects through addinginexpensive and bio-based additives. Bio-based odor suppressants will be synthesized, added to treatingsolutions and tested in pressure wood treating processes. The resulting new formulations would significantlyreduce odors in wood treating operations, but also benefit the end users of the wood products. Moreover, thewood treatment industries would save the capital investment needed for installing odorous gas scrubbers. Theanticipated outcomes of this research will have cascading layers of benefit to Canadian economy from themanufacturing of high quality wood products to making the way for a more sustainable and greener woodpreservation industry in Canada.