Using ammonium ceric nitrate and N,N’ methylene bis acrylamide as an initiator and cross linkage agent respectively, a super absorbent was prepared by graft polymerization of acrylamide on starch at the presence of c...Using ammonium ceric nitrate and N,N’ methylene bis acrylamide as an initiator and cross linkage agent respectively, a super absorbent was prepared by graft polymerization of acrylamide on starch at the presence of clay suspension, followed by hydrolyzing. The water absorbency of the sample is 4 000(g H 2O/g dry sample). The influences of the kind of clay, content of clay, cross linkage agent on absorbent properties are discussed in this paper. The results show that clay powder, as a kind of functional filler, enhances comprehensive absorbent property of the composites.展开更多
作者采用材料物理化学的理论观点和方法,研究了 NaCl(OH-)色心晶体的赋色、热处理过程条件与状态的关系,确立了较适宜的赋色、热处理条件,获得了较纯净的浓度较高的 F 心和O^(2-)-F^+。经后续处理得到了较高浓度的(F_2^+)_H 心,在国内...作者采用材料物理化学的理论观点和方法,研究了 NaCl(OH-)色心晶体的赋色、热处理过程条件与状态的关系,确立了较适宜的赋色、热处理条件,获得了较纯净的浓度较高的 F 心和O^(2-)-F^+。经后续处理得到了较高浓度的(F_2^+)_H 心,在国内首次成功地实现 NaCl(OH^-):(F_2^+)_H色心激光运转。展开更多
文摘Using ammonium ceric nitrate and N,N’ methylene bis acrylamide as an initiator and cross linkage agent respectively, a super absorbent was prepared by graft polymerization of acrylamide on starch at the presence of clay suspension, followed by hydrolyzing. The water absorbency of the sample is 4 000(g H 2O/g dry sample). The influences of the kind of clay, content of clay, cross linkage agent on absorbent properties are discussed in this paper. The results show that clay powder, as a kind of functional filler, enhances comprehensive absorbent property of the composites.
