制浆造纸工业用消泡剂的开发及应用进展

Development and application progress of defoamer in pulp and paper making industry

摘要:

制浆造纸工业生产过程中不可避免会产生泡沫，泡沫控制不当会严重影响制浆造纸工艺条件的执行以及设备的正常运转，导致产品产量和质量降低，而控制泡沫最直接有效的措施是添加合适的消泡剂。该文介绍了制浆造纸工业生产中泡沫的产生和稳定机理，泡沫对制浆造纸工业生产过程和产品质量的影响，并针对制浆造纸生产中制浆、抄纸、涂布和脱墨等工段泡沫特性和消泡要求，综述了制浆造纸用消泡剂的发展历程、各工段消泡剂种类和性质特点，消泡剂的研制开发和实际应用成本及效果情况等，并对制浆造纸用消泡剂的发展进行展望。

Abstract:

The formation of foam is inevitable during pulping and paper making. Improper control of the foam will seriously affect the technic condition executing and the equipment operating of the pulp and paper making process, then result in a decrease in the quantity and quality of the products. It is considered as the simplest and most effective method to regulate and control the foam by the way of adding suitable defoaming agents. This article presented the mechanisms of the foam generating and stabilizing, as well as its influence on the producing and quality of pulp and paper. Then the development, categories, characterizations, cost and practical application of the defoamers used in pulping and paper making were reviewed, according to the special properties and requirements of different procedures including pulping, paper making, coating and deinking. And the developing trend of defoamer for pulp and paper making was prospected finally.