| 摘要: |
| 为了使中纤板板面具有更好的色泽，增加销量，本文就如何提高中纤板表面白度进行了试验性研究。采用以草酸、漂白粉、VBL型荧光增白剂、双氧水为主剂的处理配方分别用涂刷的方法对中纤板表面进行增白试验，通过测定和分析处理效果发现，草酸、双氧水是适合中纤板板面增白的处理剂，综合考虑处理结果，以及成本和环保要求等因素，最后确定H2O2 (27.5%)、NaOH(5%)、Na2SiO3(5%)以适当比例混合和浓度为5%的草酸为最佳中纤板板面增白配方。最后采用喷雾法用最佳处理配方对大样中纤板进行增白试验。结果表明，采用这两个配方对中纤板表面进行喷雾增白处理，白度分别可提高42.6%和17.5%，处理成本分别为127.11元/m3和38.35元/m3。 |
| 关键词: 中纤板 喷雾增白 草酸 双氧水 |
| DOI： |
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| Experimental Study on Whiteness Improvement of MDF by Spraying Method |
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wang hong-fen
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| Abstract: |
| In order to make the surface of MDF possess better color and luster to increase sales volume, this research mainly addresses the problem how to enhance surface whiteness of MDF. Firstly, the experiment was carried out by brushing bleaching solutions on board surface, using oxalic acid, bleaching powder, fluorescence brightening agent, hydrogen peroxide as bleaching agent. Bleaching effect of different solutions were determined through qualitative observation and instrument evaluation, discovering oxalic acid and hydrogen peroxide solution were the most suitable bleaching agent for MDF. Considering bleaching effect, cost and environmental influences, two formula for bleaching solutions, well-proportioned H2O2 (27.5%)、NaOH(5%)angNa2SiO3(5%) and water solution of 5% oxalic acid were decided as the best for the problem addressed in the present study. Finally, using the two best bleaching solutions, large scale bleaching experiments were conducted by spraying method. Results showed that whiteness value of MDF through treatment with the two solutions was improved by 42.6% and 17.5%, and cost of treatment was 127.10元/m3 and 38.35元/m3 respectively. |
| Key words: MDF, Spraying whiteness improvement, Oxalic acid, Hydrogen peroxide |
