摘要：本课题以麦芽糊精、阿拉伯胶和纯胶作为壁材，椒样薄荷为芯材，通过包结络合法制备了椒样薄荷精油微胶囊，并将其加入皮革防霉剂中制备芳香皮革防霉剂。通过稳态流变实验、动态流变实验、温度循环扫描、屈服应力实验和时间稳定性实验对不同配方下芳香皮革防霉剂的粘度、弹性、屈服应力、温度和时间稳定性进行研究，通过感官测试对芳香皮革防霉剂使用性能进行评价，然后通过抑菌圈实验，研究椒样薄荷精油的防霉抑菌效果,当麦芽糊精用量18%，阿拉伯胶用量1%，纯胶用量2.8%，精油用量7%为最优配方，制备的芳香皮革防霉剂具有剪切变稀、弹性模量不会随着温度和时间变化，具有一定的稳定性。在最优配方下制备的微胶囊粒径约为4.3μm。通过抑菌圈实验可知，精油添加量为7%时，其对其对黑曲霉、产黄曲霉和黄绿曲霉的抑菌圈大小为6.7mm,4.4mm,3.7mm,对三种菌均具有抑菌效果。70084
关键词： 芳香皮革防霉；防霉抑菌；精油；流变特性；感官评价
Study on Rheological Properties of Aromatic Leather Anti-mildew Agent
Abstract: In this paper, maltodextrin, gum arabic and pure plastic were used as wall materials and pepper mint as core materials. Pepper-like peppermint oil microcapsules were prepared by encapsulation and prepared by adding it to leather mold Antiseptic. The viscosity, elasticity, yield stress, temperature and time stability of aromatic leather mildew were studied by steady-state rheological experiments, dynamic rheological experiments, temperature cycling, yield stress experiments and time stability experiments. The sensory test was used to evaluate the performance of the antifungal antifungal agent. Then, the antifungal effect of the peppermint essential oil was studied by the experiment of the inhibition zone, and the optimum formula was determined to obtain the antiplifying effect. When the amount of maltodextrin is 18%, the amount of acacia is 1%, the amount of pure glue is 2.8%, and the amount of essential oil is 7% ,the aromatic leather mold preparation has the advantages of shear thinning, good temperature and time stability. The microcapsules prepared under the optimal formulation had a particle size of about 4.3mm. According to the test of bacteriostatic ring, when the amount of essential oil was 7%, the inhibition range of its Aspergillus niger, Aspergillus flavus and Aspergillus flavus was 6.7mm, 4.4mm, 3.7mm, which had bacteriostasis effect on three kinds of bacteria.
KeyWords: Aromatic leather mildew; Mildew resistance; Essential oil; Rheological; Sensory test
目录
1. 绪论 1
1.1 皮革防霉剂的研究现状 1
1.1.1 合成防霉剂 1
1.1.2 天然防霉剂 2
1.2 微胶囊技术 2
1.3 微胶囊的制备方法 3
1.3.1喷雾干燥法 3
1.3.2包结络合法 3
1.3.3挤压法 3
1.3.4水相分离法 3
1.4 流变学的作用 4
1.5 流变学在精油微胶囊中的应用 4
1.6 流变学与感官评价 5
1.7 芳香皮革防霉剂的制备目的及意义 芳香皮革防霉剂的流变性研究:http://www.youerw.com/huaxue/lunwen_79221.html