摘要
实验以溴代正丁烷和N-甲基咪唑为原料,丙酮为溶剂合成目标离子液体氯化1–丁基–3–甲基咪唑([Bmim]Cl)。将合成的[Bmim]Cl、盐和去离子水混合形成离子液体双水相体系,并溶解猪皮皮粉。讨论不同种类的盐和不同质量分数的猪皮皮粉溶于猪皮皮粉溶于离子液体双水相体系的溶解情况。通过研究发现双水相体系中,盐为K2HPO4且浓度为65.5 mg/mL时溶解猪皮胶原情况最好,平且当猪皮皮粉的质量分数为10%时,溶液已经达到饱和。用傅里叶红外光谱仪对回收的离子液体以及猪皮胶原再生膜进行红外分析,观察得到回收的离子液体的较好,猪皮皮粉溶解前后胶原二级结构未发生变化。
Cl was synthesized by n-butyl bromide and N-methylimidazole,with acetone as the solvent.Cl,salt and deionized water were mixed to form ionic liquids aqueous two-phase system which dissolved pigskin hide powder.The different kinds of salt and the different mass fraction pigskin hide powder were studied and characterized respectively,influencing the dissolvability of pigskin hide powder in ionic liquids aqueous two-phase system.It showed that salt in the aqueous two-phase system for K2HPO4 and for 62.5 mg/mL dissolved pigskin collagen when it was best.What＇s more,when the dosage of pigskin hide powder was 11%,the solution had already saturated.FTIR spectra was used to observe the recycled ionic liquids and the regeneration of pigskin collagen.The recycled ionic liquid was well,and the regeneration of pigskin collagen of the secondary structure of collagen didn＇t changed.
出处
《皮革科学与工程》
CAS
北大核心
2012年第3期21-25,31,共6页
Leather Science and Engineering
基金
四川省科技计划项目(2011JY0023)
