壳聚糖的氨基同纤维表面的羧基形成了牢固的离子键结合。
Aminoin chitosan and carboxy on the surface of fiber form strong ionic linkage.
然而，因为它们以离子键或共价键结合，陶瓷有较低的断裂韧度。
However, ceramics have low fracture toughness because of their ionic or covalent bonding.
然而，因为它们以离子键或共价键结合，陶瓷有较低的断裂韧度。
However, ceramics have low fracture toughness because of their ionic or covalent bonding.
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