南京师范大学学报(工程技术版)
南京師範大學學報(工程技術版)
남경사범대학학보(공정기술판)
JOURNAL OF NANJING NORMAL UNIVERSITY(ENGINEERING AND TECHNOLOGY)
2013年
2期
37-40
,共4页
詹艳平%李超%余跃进%张金萍%郑冬青
詹豔平%李超%餘躍進%張金萍%鄭鼕青
첨염평%리초%여약진%장금평%정동청
历史文献%脱酸保护%冷冻干燥%工艺研究
歷史文獻%脫痠保護%冷凍榦燥%工藝研究
역사문헌%탈산보호%냉동간조%공예연구
paper literature%deacidification protection%vacuum freeze-drying%technology research
采用真空冷冻干燥法对脱酸后的纸质历史文献进行干燥,以确保历史文献脱酸干燥后形状良好。采用曲线分析法得出试验纸质历史文献的共晶点温度,研究了部分预冻过程和干燥过程的参数。通过分析冻干曲线,验证了辐射导热联合干燥温度分布均匀,干燥效果良好。试验结果表明,脱酸后历史文献的暗黄度明显减轻,纸张酸性能基本去除,真空冷冻干燥法能有效控制历史文献的收缩变形。
採用真空冷凍榦燥法對脫痠後的紙質歷史文獻進行榦燥,以確保歷史文獻脫痠榦燥後形狀良好。採用麯線分析法得齣試驗紙質歷史文獻的共晶點溫度,研究瞭部分預凍過程和榦燥過程的參數。通過分析凍榦麯線,驗證瞭輻射導熱聯閤榦燥溫度分佈均勻,榦燥效果良好。試驗結果錶明,脫痠後歷史文獻的暗黃度明顯減輕,紙張痠性能基本去除,真空冷凍榦燥法能有效控製歷史文獻的收縮變形。
채용진공냉동간조법대탈산후적지질역사문헌진행간조,이학보역사문헌탈산간조후형상량호。채용곡선분석법득출시험지질역사문헌적공정점온도,연구료부분예동과정화간조과정적삼수。통과분석동간곡선,험증료복사도열연합간조온도분포균균,간조효과량호。시험결과표명,탈산후역사문헌적암황도명현감경,지장산성능기본거제,진공냉동간조법능유효공제역사문헌적수축변형。
In order to keep a good shape after deacidification and drying,a vacuum freeze-drying method is arried out on the deacidified paper literature. The method of curve analysis is used to find out the temperature of eutectic point and partial parameters of pre-freezing and drying are studied. Radiation and thermal conductivity of heating methods shows a good result by analyzing the freeze-drying curve. The results of experiment indicate that the dark yellow of paper reduces signigicantly and the acid of paper is eliminated basically, and vacuum freeze-drying can control the shrinkage deformation of paper literature effectively.