第45卷第6期 2015年6月
涂料工业
PAINT&COATINGSINDUSTRY
Vol.45No.6 Jun.2015
羟乙基纤维素水溶液黏度稳定性及其抗酶解性能试验
孔慧清1,2，陈雪影1，卢秋雁1,2，李雄1,2邹学洪3
（1.广东天辰生物技术有限公司，广州510070；2.广东省微生物研究所，
广州510070；3.广州市尚筑涂料有限公司，广州511436）
摘要：在不同的羟乙基纤维素（HEC)水溶液样品中分别添加防腐杀菌剂和纤维素酶，考察存放不同时间后HEC水溶液的黏度稳定性和酶解稳定性。结果表明：在不添加防腐杀菌剂的情况下，防酶型HEC水溶液的黏度可较长时间保持稳定，而非防酶型的HEC水溶液的黏度随存放时间的延长出现明显下降；添加防腐杀菌剂后，防酶型和非防酶型HEC水溶液均有良好的黏度稳定性。添加纤维素酶后，防酶和非防酶型的HEC水溶液均会发生降解以致其黏度下降，其中非防酶型的黏度下降最快，并明显伴有还原糖的产生。研究结果可为HEC生产与应用企业测试产品性能与质量、制定水性涂料用HEC的行标或国标提供参考。
关键词：羟乙基纤维素；黏度稳定性；抗酶解性能
中图分类号：TQ630.4
文献标识码：A
文章编号：0253-4312(2015)06-0063-06
ViscosityStabilityandEnzymaticHydrolysis PropertyofHydroxyethylCelluloseSolution
Kong Huiqing"2,Chen Xueying',Lu Qiuyan2,Li Xiong'2,Zou Xuehong(1. Guangdong Tianchen Biotechnology Co., Ltd., Guangzhou 510070,China; 2.Guangdong Institute of Microbiology,Guangzhou 510070,China; 3.Guangzhou
Shangzhu Coating Co., Lad., Guangzhou 511436,China)
Abstract:The viscosity stability and enzymatic hydrolysis property of both the antienzyme and non-antienzyme type hydroxyethyl cellulase(HEC) products in three different solution (e. g.,aqueous solution, aqueous solution with antiseptic and aqueous solution with cellulase) were investigated. The results showed that no addition of antiseptic agent could enable the an-tienzyme type HEC solution to keep a stable viscosity for a long time,whereas, the non-an tienzyme type HEC solution gave a noticeable shortened time for viscosity stability.The addition of antiseptic agent enabled the antienzyme and non-antienzyme type HEC solution to exhibit good viscosity stability. With the addition of cellulase, the viscosity of the antienzyme type HEC solution decreased, and the viscosity of the non-antienzyme type HEC solution de-creased much more with the reducing sugar occurred simultaneously.The test method developed in this study not only could be used in HEC production and application, but also could provide reference to develop the industrial or national standard.
作者简介；孔慧清（1965-），男，硕士，工程师，主要从事抗微生物制剂等生物化工产品的研究与产品开发工作。
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应用搬究