作　　者： ; ; ;

机构地区： 陕西科技大学化学与化工学院

出　　处： 《高分子材料科学与工程》 2009年第7期65-68,共4页

摘　　要： 以三聚氰胺、乙二醛为原料,制备了水溶性三聚氰胺乙二醛(MG)树脂。用FT-IR、XRD、DSC和TGA对聚合物结构进行了表征,通过SEM观察了纸张表面及断面的微观结构。FT-IR证实了MG中各单体单元的存在,XRD表明MG树脂属于非晶态聚合物。DSC测定结果显示聚合物的玻璃化转变温度为53.95℃。TGA表明聚合物的起始分解温度较高,满足涂布造纸工艺的温度要求。当w(MG)从0%增大到4%时,纸张表面强度逐渐增大,油墨吸收率保持29%以上,该抗水剂对提高纸张的抗水效果和印刷性能具有明显作用。 A novel modified water-resistance agent （MG） for paper coating were prepared by addition and etherifying reaction of melamine with glyoxal. FT-IR, XRD, DSC and TGA were used to analyze the physical properties of the MG resin. The microstructure of surface and cross section of paper were observed by SEM. FT-IR indicates the structure of the MG resin, the water-resistance agent is successfully prepared. XRD diagram indicates that the MG resin is amorphous polymer. DSC shows that the glass transition temperature of the polymer is 53.95 ℃. TGA indicates that the original decomposition temperature of MG is near 196.05 ℃. When treated with diluted resultant MG solution, the surface strength of the coated paper increased monotonically and the printing ink absorbency was above 29 96 as the mass fraction of MG solution increases from 0 % to 4%. The water-resistance ability and printability of paper can be greatly improved by MG.

关 键 词： 三聚氰胺 乙二醛 表面强度 涂布抗水剂

领　　域： [化学工程]