摘要： 醇酸树脂的生产控制中酸值是关键，目前大都采用中和法测定酸值，在酸值测定中一般所使用的溶剂为甲苯和乙醇混合物，由于甲苯对人体具有较大毒害性，本研究对醇酸树脂酸值测定中的溶剂进行了绿色化研究，比较了8种溶剂的毒性和挥发性，考察了柠檬烯与乙醇不同体积的混合比例对溶解醇酸树脂的影响，结果表明柠檬烯与乙醇混合的体积比为 1:1.5的互溶效果较好。并进行了修正，修正后的酸值测定的酸值之间最大相对误差小于0.36%。根据醇酸树脂的性质认为柠檬烯可以作为其酸值测定的溶剂，是较佳替代品。
关键词:
醇酸树脂,
酸值,
柠檬烯,
溶剂绿色化
Abstract: Acid value control is a key factor during Production of alkyd resin. Generally a method of neutralization titration is applied to determine acid value. Toluene and ethanol acted as a component solvent is used for this method. Due to toxicity of toluene, a"green"research is conducted to compare 8 solvents in terms of toxieity and volatility, to examine the influence of limonene/ethanol ratio by volume on property of alkyd resin. Testing result indicates good mutual solubility for limonene and ethanol as mixed by ratio of 1:1. 5. Acid value determination is also modified to reach a ma relative error less than 0. 36%. Based on property of alklimonene can act as a good substituted solvent for determining acid value.
Key words:
alkyd resin,
acid value,
limonene,
green solvent
郑绍成, 周玉芬２, 陈 晓１. 醇酸树脂酸值测定的溶剂绿色化研究[J]. 涂料工业, 2010, 40(8): 73-75.
Zheng Shaocheng, Zhou Yufen, Chen Xiao. Determination of Alkyd Resin Acid Value of the Solvent Green[J]. Paint & Coatings Industry, 2010, 40(8): 73-75.