漆酶介体体系对纸模材料强度与疏水性的影响  

Effects of Laccase Mediator System on the Strength and Hydrophobicity of Pulp Molded Materials

作　　者：陆新宗 肖生苓[1] 王全亮[1] 唐杰[1] LU Xin-zong;XIAO Sheng-ling;WANG Quan-liang;TANG Jie(Engineering and Technology of Northeast Forestry University College, Harbin 150040, China)

机构地区：[1]东北林业大学工程技术学院,哈尔滨150040

出　　处：《包装工程》2018年第11期81-87,共7页Packaging Engineering

基　　金：国家重点研发计划(2017YFD0601004)

摘　　要：目的利用漆酶介体体系对杨木CTMP浆进行生物酶处理,研究优化后的漆酶介体体系对纸浆模塑包装材料强度和表面疏水性能的影响。方法利用正交试验方法和红外光谱以及扫描电镜等手段,分析拉伸强度、接触角、纤维表面木素结构、纤维表面形貌等的变化。结果漆酶介体体系处理杨木浆的最优方案为A2B1C4D3E2,最优反应条件为漆酶用量1.68 g,介体0.2%(均相对绝干浆),pH值为6,反应温度为60℃,反应时间为90 min,通空气。结论在此条件下采用漆酶介体体系处理杨木CTMP浆,纸浆中残余木素在漆酶处理过程中部分会被氧化降解,使纤维间粘结作用得到增强,纸浆模塑包装材料的强度与疏水性得到提高。The work aims to study the effect of optimized laccase mediator system（LMS） on the strength and surface hydrophobicity of the pulp molded packaging material with LMS used to treat poplar CTMP pulp. The change in tensile strength, contact angle, fiber surface lignin structure and fiber surface topography, etc. was analyzed by means of orthogonal test, infrared spectrum analysis and scanning electron microscope. The best way to treat poplar pulp with laccase mediator system was A2 B1 C4 D3 E2. The best reaction conditions were： 1.68 g of pulp; 6 of pH, 60 ℃ of reaction temperature, and 90 min of reaction time by constant air introduction. When poplar CTMP pulp is treated by LMS under such conditions, part of residual lignin in the pulp is oxidized, bonding between fiber and fiber is strengthened, and the tensile strength and hydrophobic property of pulp molded packaging materials are improved.

关 键 词：漆酶 介体 拉伸强度 疏水 纸浆模塑 包装材料 

分 类 号：TB484[一般工业技术—包装工程] TS71[轻工技术与工程—制浆造纸工程]