With increasing reaction time, the cross linking reaction proceeded from the surface to core gradually to give a gelatin material with cross-linking degree gradient across the section.
研究发现，随着交联时间的延长，交联反应从明胶材料的表面至内部逐步进行，由此可获得交联度呈梯度变化的明胶材料。
A novel gelatin material has been prepared by cross linking reaction of dried gelatin with glutaraldehyde vapor.
利用戊二醛蒸汽对明胶材料进行交联改性。
The purpose in this dissertation is to ameliorate the mechanical properties of chitosan fiber by using dry-jet wet spinning and cross-linking reaction.
本论文的主要目的是采用干湿法纺丝新工艺制备壳聚糖纤维，并通过交联反应以提高壳聚糖纤维的机械性能。
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