已知某物料含水量X=0.4kg水<img src="https://static.zxtiku.com/wangke/imgs/topic/1d77d9088e8b57c94c02fbc6b5fb27ed.jpg"/><img src="https://static.zxtiku.com/wangke/imgs/topic/337b70727251cd9d5cf2937856626270.jpg"/>绝干料，从该物料干燥速率曲线可知：临界含水量X=0.25kg水<img src="https://static.zxtiku.com/wangke/imgs/topic/1d77d9088e8b57c94c02fbc6b5fb27ed.jpg"/><img src="https://static.zxtiku.com/wangke/imgs/topic/dd2bd0bba92d6b0ef9e8b87cc3b5f709.jpg"/>绝干料，平衡含水量X*=0.05kg 水<img src="https://static.zxtiku.com/wangke/imgs/topic/1d77d9088e8b57c94c02fbc6b5fb27ed.jpg"/><img src="https://static.zxtiku.com/wangke/imgs/topic/5ca86971824a15a66a1d0c2eb73138ab.jpg"/>绝干料，则物料的非结合水分为__________。