【摘要】 采用双重原位负载法，以未漂硫酸盐针叶木浆为原料制备聚吡咯/磷酸银/纸浆纤维复合纸（PPy/Ag₃PO₄/PF）,探究磷酸银的引入及负载顺序对纸张光热性能及界面水蒸发性能的增强作用。同时为了降低成本，提升纸张的物理性能，将负载磷酸银和聚吡咯后的纸浆纤维与未漂硫酸盐针叶木浆以不同质量比混合抄纸，探究混合抄制纸张对光热性能和界面水蒸发性能的影响。结果表明：先负载磷酸银后负载聚吡咯的纸张光热性能更好，在1 kW/m²的光照强度下，5 min内光热纸的表面温度可达69℃,水蒸发效率可达73.3%;混合抄制的纸张中，当负载后的纸浆纤维的质量占比为50%时抄制的聚吡咯/磷酸银/纸浆纤维复合纸（50%PPy/Ag₃PO₄/PF）,机械性能适中且光热性能最好，纸张抗张指数提升至9.78 N·m/g,在1 kW/m²的光照强度下，5 min内光热纸的表面温度可达83℃,水蒸发效率可达97.3%。更多还原

【Abstract】 Using a dual in-situ loading method, polypyrrole/silver phosphate/pulp fiber composite paper（PPy/Ag₃PO₄/PF） was prepared with unbleached sulfate soft wood pulp as raw material. The effect of the introduction and loading sequence of silver phosphate on the photothermal performance and interfacial water evaporation performance of the paper was investigated. Meanwhile, in order to reduce costs and improve the physical properties of paper, the pulp fiber loaded with silver phosphate and polypyrrole were mixed with unbleached kraft softwood pulp at different mass ratios for papermaking, to explore the effects of mixed paper making on the photothermal performance and interfacial water evaporation performance. The results showed that the photothermal performance of the paper loaded with silver phosphate first and then with polypyrrole was better. And the surface temperature of the photothermal paper could reach 69 ℃ and the water evaporation efficiency could reach 73.3% within 5 min under the light intensity of 1 kW/m². In the mixed paper, when the mass of the loaded pulp fiber accounted for 50%, the mechanical properties of polypyrrole/silver phosphate/pulp fiber composite paper（50%PPy/Ag₃PO₄/PF） were moderate and the photothermal performance was the best. The tensile index of the paper increased to 9.78 N·m/g. Under a light intensity of 1 kW/m², the surface temperature of the photothermal paper could reach 83 ℃ within 5 min, and the water evaporation efficiency could reach 97.3%.更多还原