通过对自制的水溶性松香树脂酸钠模型物与一定浓度Ca^2+作用下的树脂酸钙生成量及其影响因素等进行研究,模拟造纸实际生产过程中树脂酸与湿部系统中Ca^2+作用生成的树脂酸钙障碍物及其影响因素。结果表明,Ca^2+与水溶性或胶体性的树脂酸钠进行离子交换,生成黏性高且有聚集成大颗粒倾向的树脂酸钙。溶液中Ca^2+浓度越大、pH值和温度越高,树脂酸钙生成量越大,且生成树脂酸钙所需的时间越短。
In this paper,the calcium resinate forming mechanism and the affecting factors were studied by using the model compound of sodium resinate and Ca^2+ to simulate the wet-end chemistry process.The research results showed that Ca^2+ can be able to exchange the Na+ of the sodium resinate either in soluble or colloidal forms,which will produce calcium resinate that has high viscosity and conglomerating trend.The higher of ca2+ concentration,the pH value and the temperature,the higher of calcium resinate production,and the shorter reaction time.