Melamine sponge /alginic acid composite type adsorbing material and preparation method thereof

• Main Authors: SUN HUAIYAN, LI WEIXUN, XIAO TONGHU, LONG NENGBING, ZHANG RUIFENG, LIANG YUNXIAO, JIANG FENG
• Format: Patent
• Language: Chinese; English
• Published: 20.07.2016
• Subjects: ADHESIVES; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; DYES; LAKES; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; MORDANTS; NATURAL RESINS; ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES; PAINTS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; POLISHES; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention relates to a melamine sponge and alginic acid composite type adsorbing material and a preparation method thereof. The specific three-dimensional skeleton structure of a commercial melamine sponge is used, a sodium alginate aqueous solution is introduced and solidified in the sponge under an acid condition, then water in alginic acid is removed by a natural drying method, finally a unique three-dimensional macropore system is formed, wherein the melamine sponge has the effects of mechanical stabilization and supporting, the alginic acid is sufficiently dispersed to form a multilayer penetration shaped film, the adsorbing efficiency is obviously improved, the content of the alginic acid in the composite material is in the range of 52-58wt.%, and the specific surface area is in the range of 52.6-61.4m /g.The composite type adsorbing material can be used as a whole adsorbing column, and can be used for extracting wine red natural pigments, and good effects are achieved. The material has the advantag