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首页> 外文期刊>American Journal of Mechanical and Industrial Engineering >Preparation and Characterization of Acacia Catechu Film: Effect of Monomer (HEMA) and UV Radiation
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Preparation and Characterization of Acacia Catechu Film: Effect of Monomer (HEMA) and UV Radiation

机译：相思树胶膜的制备和表征：单体（HEMA）和紫外线辐射的影响

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Nature is the prime source of everythings. So, in this research we selected the plant source for the extraction of resin from acacia catechu. Raw acacia catechu was collected from the plant for the extraction of resin and preparation of film. A mixture of 60% ethanol and 40% benzene was used as solvent for the extraction of resin. After extraction, polymeric films were prepared by casting the extracted solution maintaining the thickness 1 to 3 mm. Now-a-days monomers are widely used for the improvement of properties. In this case monomer (HEMA) was used to improve the mechanical properties of prepared film. Different percentages (10, 12.5 and 15%) of monomer were used with the catechu but 12.5% showed better results than the others two. Different types of high energy radiation (gamma radiation, UV-radiation, etc.) are also widely used for the improvement of different types of properties. With the HEMA grafted catechu film different pass (15, 20 and 25) of UV radiation was applied. The highest result was obtained for the 20 UV radiation pass and the monomer concentration was 12.5% which was taken as optimum. At the optimum condition the highest TS and TM values were 4.5 MPa, and 72MPa respectively as well as the lowest elongation at break was 1.44%.
机译：大自然是万物的主要来源。因此，在这项研究中，我们选择了从刺槐中提取树脂的植物来源。从植物中收集原始的阿拉伯树胶儿茶，用于提取树脂和制备薄膜。使用60％乙醇和40％苯的混合物作为溶剂萃取树脂。提取后，通过流延提取的溶液以保持厚度为1-3 mm来制备聚合物膜。如今，单体已广泛用于改善性能。在这种情况下，使用单体（HEMA）来改善所制备薄膜的机械性能。儿茶素使用了不同百分比（10％，12.5％和15％）的单体，但12.5％的结果优于其他两种。不同类型的高能辐射（伽马辐射，紫外线辐射等）也广泛用于改善不同类型的性能。使用HEMA接枝的儿茶薄膜，可以施加不同的通过次数（15、20和25）的UV辐射。对于20次UV辐射，获得了最高结果，单体浓度为12.5％，这是最佳选择。在最佳条件下，最高TS和TM值分别为4.5 MPa和72 MPa，最低断裂伸长率为1.44％。

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