Characterization of α‐tocopherol‐loaded MCM‐41 mesoporous silica with different pore sizes and antioxidant active packaging films,Packaging Technology and Science

当前位置： X-MOL 学术 › Packag. Technol. Sci. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Characterization of α‐tocopherol‐loaded MCM‐41 mesoporous silica with different pore sizes and antioxidant active packaging films
Packaging Technology and Science ( IF 2.8 ) Pub Date : 2020-10-12 , DOI: 10.1002/pts.2540
Li‐nan Sun ₁ , Li‐xin Lu _{1,

2} , Liao Pan ₁ , Qing Wang ₃ , Xiao‐lin Qiu ₁

Affiliation

Antioxidant active packaging films were prepared with low‐density polyethylene (LDPE) being incorporated with α‐tocopherol‐loaded MCM‐41 mesoporous silica. In order to study the influence of pore size and morphology of the mesoporous material on physical and release properties of films, the mesoporous materials were synthesized with various pore sizes and morphologies. MCM‐41 mesoporous silica materials before and after being loaded with α‐tocopherol were characterized, as well as the active films. The results show that physical properties and release profiles of active films can be changed when being incorporated with mesoporous materials with different structures: crystallinity of films prepared ranged from 11.30% to 18.13%, and the tendency of change was in good accordance with that of specific surface area of mesoporous silica materials. Variation of release rates of the antioxidant in packaging films can be achieved by changing MCM‐41 pore size, and the release period can be prolonged by ~64% in the scope of this study. These demonstrate that LDPE/α‐tocopherol/MCM‐41 films with adjustable release profile and physical properties have the potential to be used as antioxidant active packaging films.

中文翻译：

具有不同孔径和抗氧化剂活性包装膜的负载α-生育酚的MCM-41介孔二氧化硅的表征

用低密度聚乙烯（LDPE）和负载有α-生育酚的MCM-41介孔二氧化硅混合制备抗氧化剂活性包装膜。为了研究介孔材料的孔径和形貌对膜的物理和释放性能的影响，合成了具有各种孔径和形貌的介孔材料。对MCM-41介孔二氧化硅材料负载α-生育酚前后的特性以及活性膜进行了表征。结果表明，与不同结构的介孔材料混合后，活性膜的物理性质和释放特性可以改变：制备的膜的结晶度为11.30％至18.13％，变化趋势与特定的变化趋势相吻合。介孔二氧化硅材料的表面积。通过改变MCM-41孔径可以改变包装膜中抗氧化剂的释放速率，在本研究范围内，释放时间可以延长〜64％。这些表明，具有可调节释放特性和物理性能的LDPE /α-生育酚/ MCM-41薄膜有潜力用作抗氧化剂活性包装薄膜。

更新日期：2020-10-12

点击分享查看原文

点击收藏

阅读更多本刊最新论文