Generally, the mechanical strength and stiffness of old corrugated cardboard (OCC) waste paper are decreased after multiple recycling procedures. Surface sizing starch, which is extensively used in the surface sizing of paper making, accumulates after dissolving from the fibers and is transformed into pollutant during the OCC re-pulping process. To overcome the pollution and reutilization problem of the waste starch during the recycling process of OCC paper, waste starch was ionized using hydrogen peroxide (H₂O₂) to improve the mechanical properties of OCC paper during the reutilization. The results showed that the carboxyl group of waste starch increased with an increasing degree of ionization, resulting in enhanced copper ion adsorption capacity. Furthermore, the retention rate of the modified starch in the wet-end increased from 18.0% to 48.2%. The OCC paper presented the highest burst index and tensile strength of 8.94 kPa m²/g and 112.5 N m/g, respectively, when MS-2 was added. This work has great significance for implementation of the cleaning production of OCC waste papers and the reutilization of the waste starch.

通常，在多次回收程序后，旧瓦楞纸板（OCC）废纸的机械强度和刚度会降低。在造纸的表面施胶中广泛使用的表面施胶淀粉在溶解于纤维后会积聚，并在OCC重制浆过程中转化为污染物。为了克服废纸在OCC纸回收过程中的污染和再利用问题，使用过氧化氢（H ₂ O ₂），以提高OCC纸在再利用期间的机械性能。结果表明，废淀粉的羧基随着离子化程度的增加而增加，从而提高了铜离子的吸附能力。此外，改性淀粉在湿端的保留率从18.0％增加到48.2％。当添加MS-2时，OCC纸的最高爆裂指数和拉伸强度分别为8.94 kPa m ² / g和112.5 N m / g。这项工作对实施OCC废纸的清洁生产和废淀粉的再利用具有重要意义。