The moisture absorption of the grafted down-powder was decreased with the increase of the grafting ratio and increased obviously comparing with the down-powder.

• 结果表明：接枝对羽绒粉体的回潮率有明显的影响，接枝羽绒粉体的回潮率增大，随着接枝率的增加，回潮率逐渐下降。