醋酸丁酸纤维素是一种广泛应用于涂料工业的添加剂,由于纤维素具有分子内与分子间强氢键作用以及纤维素纤维的局部规整的结晶序列等特征,工业上的合成方法一般都在有机酸以及酸酐中进行的.本文是在丁酸/乙酸/丁酸酐反应体系中,添加一定量的硫酸作为催化剂下合成出从高丁酯含量到低丁酯含量的醋酸丁酸纤维素(CAB),研究混和有机酸组成(不同比例的丁酸/乙酸)、酯化反应时间以及CAB的丁酯和乙酯含量、产品对热性能及溶解性的影响.
参考文献
| [1] | Tosh Biranchinarayan;Saikia Chowdhury N.;Dass Narendra .Homogeneous esterfication of cellulose in the lithium chloride-N,N-dimethylacetamide solvent system: effect of temperature and catalyst[J].Carbohydrate research,2000(3):345-352. |
| [2] | Celine Satge;Robert Granet;Bernard Verneuil;Pierre Braland;Pierre Krausz .Synthesis and properties of biodegradable plastic films obtained by microwave-assisted cellulose acylation in homogeneous phase[J].Comptes Rendus Chimie,2004(2):135-142. |
| [3] | C. Vaca-Garcia;M. E. Borredon .Solvent-free fatty acylation of cellulose and lignocellulosic wastes. Part 2: reactions with fatty acids[J].Bioresource Technology: Biomass, Bioenergy, Biowastes, Conversion Technologies, Biotransformations, Production Technologies,1999(2):135-142. |
| [4] | Freire CSR;Silvestre AJD;Neto CP;Gandini A;Fardim P;Holmbom B .Surface characterization by XPS, contact angle measurements and ToF-SIMS of cellulose fibers partially esterified with fatty acids[J].Journal of Colloid and Interface Science,2006(1):205-209. |
| [5] | Daniel Pasquini;Mohamed Naceur Belgacem;Alessandro Gandini;Antonio Aprigio da Silva Curvelo .Surface esterification of cellulose fibers: Characterization by DRIFT and contact angle measurements[J].Journal of Colloid and Interface Science,2006(1):79-83. |
| [6] | 郑昌仁.高聚物分子量及其分布[M].北京:化学工业出版社,1986 |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%