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明胶/海藻酸钠/沙蒿胶复合水凝胶的制备及表征
引用本文:闫慧敏,杨光,杨波,王礼. 明胶/海藻酸钠/沙蒿胶复合水凝胶的制备及表征[J]. 工业微生物, 2022, 52(1): 24-33. DOI: 10.3969/j.issn.1001-6678.2022.01.005
作者姓名:闫慧敏  杨光  杨波  王礼
作者单位:上海理工大学健康科学与工程学院,上海200093
摘    要:为探究明胶(G)、海藻酸钠(SA),沙蒿胶(ASKG)对复合水凝胶的力学性能、溶胀和保湿性能的影响,采用共混-离子交联法制备海藻酸钠/明胶/沙蒿胶复合水凝胶,并对制得的水凝胶进行结构表征和溶血率测试。结果表明:当G质量分数为2.5%,SA为1.5%,ASKG为0.7%时,复合水凝胶压缩强度达到427.2 kPa,拉伸强度达到563.449 kPa,断裂伸长率为117%,溶胀率为744%,且具有较好的保湿性能。红外光谱表明,由于沙蒿胶中存在大量羟基,因此加入沙蒿胶后在3 300 cm-1~3 600 cm-1羟基峰形变宽。G/SA/ASKG复合水凝胶溶血率低于5%,具有较好的网络孔结构和血液相容性,为复合水凝胶在医用敷料方面的应用提供一定的参考价值。

关 键 词:明胶  海藻酸钠  沙蒿胶  水凝胶  力学性能

Preparation and characterization of gelatin/sodium alginate/artemisia sphaerocephala krasch gum composite hydrogel
YAN Huimin,YANG Guang,YANG Bo,WANG Li. Preparation and characterization of gelatin/sodium alginate/artemisia sphaerocephala krasch gum composite hydrogel[J]. Industrial Microbiology, 2022, 52(1): 24-33. DOI: 10.3969/j.issn.1001-6678.2022.01.005
Authors:YAN Huimin  YANG Guang  YANG Bo  WANG Li
Affiliation:(School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093)
Abstract:In order to investigate the effects of gelatin(G),sodium alginate(SA)and artemisia sphaerocephala krasch gum(ASKG)on the mechanical properties,swelling and moisture retention of composite hydrogels,sodium alginate/gelatin/artemisia sphaerocephala krasch gum composite hydrogels were prepared by blending-ion crosslinking method,and the structure characterization and hemolysis rate of the hydrogels were tested.The results showed that when the mass fraction G was 2.5%,SA 1.5%and ASKG 0.7%,the composite hydrogel had compressive strength of 427.2 kPa,tensile strength of 563.449 kPa,elongation at break of 117%and swelling rate of 744%respectively,and had good moisture retention performance.Infrared spectra revealed that the deformation of hydroxyl peak was wider at 3300 cm-1~3600 cm-1 after the addition of artemisia sphaerocephala krasch gum due to the large amount of hydroxyl in the gum.The hemolysis rate of G/SA/ASKG composite hydrogel was less than 5%,which had good network pore structure and blood compatibility.As a result,it provided a certain reference value for the application of composite hydrogel in medical dressings.
Keywords:gelatin  sodium alginate  artemisia sphaerocephala krasch gum  hydrogel  mechanical properties
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