公开(公告)号：KR100427264B1

公开(公告)日：2004-04-17

申请号：KR1020010014423

申请日：2001-03-20

Applicant: 한국화학연구원

Inventor： 곽중협 ,  서태수 ,  김효중 ,  이상화 ,  김영보

IPC: C01B33/14

Abstract: PURPOSE: A powdery self humidity control material is provided to control indoor humidity between 40 % to 70 % automatically irrespective of outdoor humidity changes. CONSTITUTION: The method comprises the steps of forming porous gel by reverse titration where sodium silicate solution is added to acid solution; aging the porous gel at pH 4.0 to 6.0, followed by washing, drying and calcination. Above reverse titration is not subject to redissolution process and carried out at 0 to 10 deg.C. The obtained powdery self humidity control material has porosity of 3.0 to 6.0 nm and porous volume of 0.7 to 1.0 cc/g.

Abstract translation: 用途：粉末状自动湿度控制材料可自动控制40％至70％的室内湿度，而不受室外湿度变化的影响。 构成：该方法包括通过反向滴定形成多孔凝胶的步骤，其中将硅酸钠溶液加入到酸溶液中; 在pH4.0至6.0时老化多孔凝胶，然后洗涤，干燥和煅烧。 在反滴定以上不进行再溶解处理，在0〜10℃下进行。 得到的粉末状自湿度调节材料的孔隙率为3.0〜6.0nm，多孔体积为0.7〜1.0cc / g。

公开(公告)号：KR1020020074579A

公开(公告)日：2002-10-04

申请号：KR1020010014423

申请日：2001-03-20

Applicant: 한국화학연구원

Inventor： 곽중협 ,  서태수 ,  김효중 ,  이상화 ,  김영보

IPC: C01B33/14

CPC classification number: C01B33/154 ,  C01B33/158 ,  C01P2002/02 ,  C01P2006/14 ,  C01P2006/16

Abstract: PURPOSE: A powdery self humidity control material is provided to control indoor humidity between 40 % to 70 % automatically irrespective of outdoor humidity changes. CONSTITUTION: The method comprises the steps of forming porous gel by reverse titration where sodium silicate solution is added to acid solution; aging the porous gel at pH 4.0 to 6.0, followed by washing, drying and calcination. Above reverse titration is not subject to redissolution process and carried out at 0 to 10 deg.C. The obtained powdery self humidity control material has porosity of 3.0 to 6.0 nm and porous volume of 0.7 to 1.0 cc/g.

Abstract translation: 目的：提供粉状自调湿材料，自动控制室内湿度40％至70％，无论室外湿度如何变化。 方法：该方法包括通过反滴定法形成多孔凝胶的步骤，其中将硅酸钠溶液加入到酸溶液中; 在pH 4.0至6.0下老化多孔凝胶，然后洗涤，干燥和煅烧。 上述反滴定不经过再溶解处理，在0〜10℃下进行。 得到的粉末状自调湿材料的孔隙率为3.0〜6.0nm，多孔体积为0.7〜1.0cc / g。