摘要
通过对樟子松和柞木分别在常压和压力蒸汽下进行高温热处理,比较了两种热处理材与常规对照材生物耐久性的差异。结果表明,高温热处理特别是压力蒸汽处理,可以更显著地改善木材的耐腐性,耐腐等级可由对照材的Ⅳ级(不耐腐),提高为Ⅰ级(强耐腐,樟子松)和Ⅱ级(耐腐,柞木)。热处理可以有效减轻蓝变菌对木材的侵害,但不能防止或减轻木材表面的霉变。在热处理材表面涂刷油性防水涂料,是防止表面生霉的很有效的方法。
Samples of Mongolian Pine and Mongolian Oak were high-temperature heat treated in atmospheric steam and pressurized steam respectively.The differences of biological durability between two kinds of heat treated samples and untreated ones were compared.The results revealed that high-temperature heat treatment,especially heat treatment with pressurized steam,could substantially improve the durability class of wood from class 4（non-durable,such as untreated samples） to class 1 （very durable,such as treated Mongolian Pine） and class 2（durable,such as treated Mongolian Oak）. Heat treatment could prevent wood from attacking by blue stain,but was useless for resisting mold attack.Wood surface coating with oily paint was an effective way for avoiding mold attack.
出处
《林产工业》
北大核心
2010年第5期6-9,共4页
China Forest Products Industry
基金
国家科技部科技帮扶项目"木材热改色技术及产品开发与产业化"(2009GJC20048)
关键词
热处理材
压力蒸汽
生物耐久性
蓝变
霉菌
Heat-treated wood
Pressurized steam
Biological durability
Blue stain
Mold
