摘要
为实现胡麻纤维的高效提取,采用超临界CO_(2)技术与生物酶浸渍技术相结合对废弃胡麻秸秆进行脱胶处理。通过响应面设计对超临界CO_(2)处理时间、处理温度、处理压力进行优化。以纤维残胶率、质量损失率、断裂强力、纤维直径和细度为检测指标,利用正交试验研究超临界CO_(2)辅助酶脱胶工艺参数和脱胶效果的关系,并与传统化学脱胶、复合酶脱胶、单纯超临界CO_(2)脱胶工艺进行比较。结果表明:超临界CO_(2)处理压力为18 MPa、处理温度为64℃、CO_(2)流量为20 g/min、复合酶用量为8%(owf)(木聚糖酶∶β甘露聚糖酶∶果胶酶质量比为4.4∶2.3∶1.3),处理时间40 min超临界CO_(2)辅助酶脱胶最佳工艺。对比其他工艺,发现经超临界CO_(2)体系处理的胡麻纤维残胶率较小(14.45%),对纤维素的损伤小,较大程度保留了纤维强力(47.56 cN),基本满足纺纱要求。
In order to achieve efficient extraction of flax fiber,supercritical CO_(2)technology and biological enzyme impregnation technology were combined to degum the waste flax straw.The extraction process of supercritical CO_(2)treatment thme,treatment temperature and treatment pressure was optimized by response surface design.The relationship between supercritical CO_(2)assisted enzymatic degumming process parameters and degumming effect was studied by orthogonal test with fiber residual gum rate,mass loss rate,breaking strength,diameter and fineness as detection indexes,and compared with traditional chemical degumming,compound enzyme degumming and simple supercritical CO_(2)degumming process.The results show that the optimum process of supercritical CO_(2)-assisted enzymatic degumming was as follows:the treatment pressure was 18 MPa,the treatment temperature was 64℃,the CO_(2)flow rate was 20 g/min,and the amount of composite enzyme was 8%(xylanase:β-mannanase:pectinase mass ratio was 4.4∶2.3∶1.3).The flax fiber was degummed for 40 min.Compared with other processes,it was found that the residual gum rate of flax fiber treated by supercritical CO_(2)system was small(14.45%),the damage to cellulose was small,and the fiber strength(47.56 cN)was retained to a large extent,which basically met the spinning requirements.
作者
王鑫
麻文效
董澎
WANG Xin;MA Wenxiao;DONG Peng(College of Light Industry and Textile,Inner Mongolia University of Technology,Hohhot,Inner Mongolia 010080,China;Inner Mongolia Xinke Camel Products Technology Development Co.,Ltd.,Ulanqab,Inner Mongolia 013350,China)
出处
《毛纺科技》
CAS
北大核心
2024年第6期39-46,共8页
Wool Textile Journal
基金
内蒙古自治区科技计划项目(2022YFHH0128)
内蒙古自治区硕士研究生科研创新项目(S20231143Z)
内蒙古自治区直属高校基本科研业务费项目(JY20230116)。
