热压工艺和环境参数对刨花板TVOC和甲醛释放量的影响  

Impact of Hot-Pressing Parameters and Climate Condition on Total Volatile Organic Compounds and Formaldehyde Emissions from Particleboards

作　　者：王敬贤[1] 沈隽[1] 

机构地区：[1]生物质材料科学与技术教育部重点实验室(东北林业大学),哈尔滨150040

出　　处：《东北林业大学学报》2011年第7期71-73,共3页Journal of Northeast Forestry University

基　　金：国家环保公益性行业科研专项(200809120);国家自然科学基金(31070488)资助

摘　　要：利用人造板有机挥发气体采样装置、手持式TVOC气体检测仪、甲醛检测仪,对不同环境温度条件下的各刨花板释放的有机挥发物质量浓度进行了测定,分析了影响刨花板挥发性有机化合物(TVOC)和甲醛释放量的因素,即材料制作的热压工艺(热压压力和热压时间)及环境参数(温度和相对湿度)。结果表明:热压工艺和环境参数对板材TVOC和甲醛释放量有明显的影响,随着热压时间延长、热压压力增大,板材TVOC和甲醛的释放量随之增加;随着环境温度、相对湿度的提高,板材TVOC和甲醛的释放量也增大。Formaldehyde analysis instrument （4 160-19.99 m） and portable Total Volatile Organic Compounds （TVOC） gas monitor （PGM-7240） were used to measure formaldehyde and TVOC concentrations in the chamber outlet. Factors .affecting the emissions of TVOC and formaldehyde from particleboards were analyzed by measuring the concentrations in the small climate chamber. The factors included hot-pressing parameters of particleboard manufacturing （ hot-pressing pressure and time） and external climate parameters （temperature and relative humidity）. The study shows that hot-pressing parameters of particleboard and climate parameters have obvious effect on TVOC and formaldehyde emissions. TVOC and formaldehyde emissions increase with prolonging hot-pressing time and increasing hot-pressing pressure. Temperature and relative humidity can accelerate TVOC and formaldehyde emissions.

关 键 词：挥发性有机化合物 甲醛 热压工艺 环境参数 

分 类 号：TS653.92[轻工技术与工程]