大麻韧皮纤维不同制浆方法纸浆性能的研究  

Study on Pulp Properties of Different Pulping Methods of Hemp Bast Fiber

作　　者：申惠莹 雷以超 陈灵晨 SHEN Huiying;LEI Yichao;CHEN Lingchen(National Engineering Research Center for Papermaking and Pollution Control,South China University of Technology,Guangzhou,Guangdong Province,510640)

机构地区：[1]华南理工大学造纸与污染控制国家工程研究中心,广东广州510640

出　　处：《中国造纸》2023年第7期49-56,93,共9页China Pulp & Paper

基　　金：华南理工大学造纸与污染控制国家工程研究中心自主创新研究基金(2020ZY01)。

摘　　要：本研究以工业大麻韧皮纤维为原料,首先对大麻韧皮纤维的化学组分及纤维形态进行分析,结果表明,工业大麻韧皮纤维具有很高的硝酸-乙醇纤维素含量,达70.6%,木素含量则比较低,只有9.6%;其纤维平均长度为20.47 mm,纤维平均宽度为22.50μm,长宽比高达909.78,是优质的造纸原料。采用烧碱-蒽醌法(NaOH-AQ)、硫酸盐法(KP)以及碱性亚钠-蒽醌法(AS-AQ) 3种不同的制浆方法制备大麻韧皮浆,对比研究了其在制浆性能、打浆特性和纸张物理性能方面的区别。结果表明,与大麻韧皮商品浆相比,AS-AQ制浆在制浆得率、纸浆白度、特性黏度和纸张物理强度性能方面均比NaOH-AQ法和KP法制浆有明显优势,因此,AS-AQ法是大麻韧皮纤维理想的制浆方法。In this paper,the bast fiber of industrial hemp was used as raw material.The chemical composition and fiber morphology were analyzed.The results showed that the industrial hemp fiber had a high content of nitrate-ethanol cellulose,reaching 70.6%,while the lignin content was relatively low,only 9.6%.The average length of the fiber was 20.47 mm,the average width of the fiber was 22.50 μm,and the length and width ratio was 909.78,which was a high quality raw material for paper making.Then three different methods of soda-anthraquinone(NaOH-AQ),sulfate(KP) and alkaline subsodium-anthraquinone(AS-AQ) were used to prepare the pulp.Compared with commercial pulp,AS-AQ pulp had obvious advantages over NaOH-AQ pulp and KP pulp in terms of pulp yield,brightness,intrinsic viscosity and paper physical strength performance.So that AS-AQ was an ideal method for hemp bast fiber.

关 键 词：工业大麻 韧皮纤维 制浆 打浆 纸张性能 

分 类 号：TS743[轻工技术与工程—制浆造纸工程]