用虾、蟹壳制取止血海绵

MAKING HAEMOSTATIC SPONGE WITH SHELL OF SHRIMP AND CRAB

甲壳素是一种广泛存在自然界，性能优良的天然高分子材料。用虾壳经除盐，去蛋白处理后，用５０％的ＮａＯＨ溶液在１１０℃的温度下脱乙酰基制备壳聚糖；以１∶９的稀醋酸溶作溶剂，氯化钯作催化剂，甲苯二异氰酸酯作发泡剂、交联剂，使壳聚糖与ＰＶＡ－１２４进行交联成膜，发泡用氨水洗成中性后在８０℃的红外灯烘箱下烘干。

Chitin is a nature high-level molecular material. This paper deals with making stop bleeding sponge with dried small shrimps. Firstly breaking away with inorganic salt and proteir in the dried small shrimps with acid and NaOH, secondly, taking off vinyl-in the chitin with 50% NaOH, temperature is 110 ℃. the last, reacting with chitosamine and PVA-124 make stop bleeding sponge were produced, catalyst is PdCl 2. The sponge film and sparkce is setatisfaction.