高得率浆的发展现状及高值化应用研究进展

Development Status and High-value Application Research Progress of High Yield Pulp

我国制浆造纸行业一直面临着纤维资源短缺的问题。随着国家禁止进口固废政策的实施,造纸行业纤维原料的缺口进一步扩大。高得率制浆具有纤维资源利用率高、原料适应性广、工艺流程紧凑、设备投资少等优点,近年来受到广泛关注。本文首先对高得率制浆方法进行了简要介绍,探讨了高得率浆(HYP)的制浆工艺特点及浆料特性,分析了HYP的发展现状;并阐述了HYP在传统纸和纸板中的应用现状,详细论述了HYP在纸浆模塑包装材料、较高附加值纸制品、功能性复合材料以及高性能纸基材料中的高值化应用研究进展;最后,结合HYP的工艺完善和纸基功能材料的需求对HYP的发展进行了展望。

Pulping and papermaking industry of China has always been facing the shortage of fiber resources.Even worse,with the implementation of the restriction policy on importing solid waste from abroad,the gap of fiber raw material in papermaking industry is further increased.In recent years,high yield pulping has attracted more and more attention because of its advantages,such as wide adaptability of raw material,high compact process,and low investment in equipment.In this paper,the high yield pulping method was firstly introduced,its characteristics in terms of pulping process and fiber slurry were discussed,and the development status of high yield pulp(HYP)was analyzed.Then,the application research progress of HYP was systematically discussed.To be specific,the application status of HYP in traditional paper and paperboard was summarized,and it was emphasized the high-value application of HYP in moulded pulp packaging material,higher value-added paper products,functional composites,and high-performance paper-based materials.Finally,the development of HYP by considering its process improvement and the demand of paper-based functional materials was forecasted.