Performance of MgAl layered double hydroxides light stabilizer assembled via intermolecular forces

被引：0

作者：

Du D. ^{[1
]}

Liu H. ^{[1
]}

Ma R. ^{[1
]}

Feng Y. ^{[1
]}

Li D. ^{[1
]}

Tang P. ^{[1
]}

机构：

[1] State Key Laboratory of Chemical Resource Engineering, Beijing Engineering Center for Hierarchical Catalysts, Beijing University of Chemical Technology, Beijing

来源：

Li, Dianqing (lidq@mail.buct.edu.cn); Tang, Pinggui (tangpg@mail.buct.edu.cn) | 1600年 / Materials China卷 / 72期

关键词：

Composites; Light stabilizers; MgAl layered double hydroxides; Nanomaterials; Polypropylene; Preparation;

D O I：

10.11949/0438-1157.20210028

中图分类号：

学科分类号：

摘要：

Light stabilizer 2-hydroxy-4-n-octoxy-benzophenone (UV-531) and sodium lauryl sulfate (SDS) co-intercalated MgAl layered double hydroxides (UV-SDS-LDH) was assembled by taking the advantages of the intermolecular forces between UV-531 and SDS in SDS-LDH which was prepared firstly through a co-precipitation and anion-exchange method. The crystal structure, composition, ultraviolet absorption and morphology of the obtained UV-SDS-LDH were characterized by XRD, FT-IR, UV-Vis and SEM, which demonstrated that UV-SDS-LDH with co-intercalating structure had strong ultraviolet absorption capability and nanosheet morphology. The intercalation significantly improved the resistance migration of UV-531 with the migration rate reduced from 83% to 50.5%. The addition of UV-SDS-LDH into polypropylene (PP) matrix markedly enhanced the thermal stability and resistance to photoaging of PP with the 50% mass loss temperature increasing from 411℃ to 441℃ and the photoaging index reducing from 65.9×10-3 to 23.9×10-3 due to its special structure and composition, suggesting the hopeful application of UV-SDS-LDH in the field of PP. This work offers a new method for the preparation of novel LDH based functional materials and the utilization of Mg resources in salt lakes. © 2021, Editorial Board of CIESC Journal. All right reserved.

引用

页码：3095 / 3104

页数：9

共 42 条

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