纸张加压雾化脱酸装置的设计及应用

设计了一种纸张加压雾化脱酸装置,并利用该装置对纸张进行脱酸,以延长纸张的使用寿命。研究了脱酸剂种类、用量和脱酸时间对纸张表面pH值和机械性能的影响。选择天然脱酸剂TS4、丙酸钙乙醇水溶液、异丁胺乙醇水溶液为该脱酸装置用脱酸剂。结果表明,对于一张10 cm×25 cm的旧报纸,3种脱酸剂的最佳用量不同,TS4用量为10 mL,丙酸钙乙醇水溶液和异丁胺乙醇水溶液的最佳用量为15 mL;脱酸最佳处理时间均为12 h。脱酸后纸张的抗张强度、伸长率和撕裂度均有较大幅度提高,尤其是TS4脱酸后的纸张最为明显。本实验设计的加压雾化脱酸装置可在常温常压条件下对纸张进行脱酸,具有较好的开发应用价值。

Design and Application of a Pressure Atomization Paper Deacidification Device

A kind of pressure atomization device was designed and used for paper deacidification. Effects of the kind and dosage of deacidification agent and treatment time on paper surface pH value and mechanical properties were investigated. Natural deacidification agents TS4, calcium propionate ethanol aqueous solution and isobutylamine ethanol aqueous solution were chosen as deacidification agents. The results showed that the optimal dosage of each deacidification agent was different: dosage of TS4 was 10 mL, while dosages of calcium propionate ethanol aqueous solution and obutylamine ethanol aqueous solution were 15 mL, and all the optimal treatment times of deacidification were 12 hours. After deacidification, mechanical properties of treated paper including tensile strength, stretch and tear were all enhanced significantly TS4 in particular. It was concluded that pressurized atomization device designed in this experiment was appropriate for paper deacidification using organic solvent deacidification agents at room temperature and ordinary pressure.