期刊
JOURNAL OF POLYMER RESEARCH
卷 29, 期 3, 页码 -出版社
SPRINGER
DOI: 10.1007/s10965-022-02936-4
关键词
Layered double hydroxide; Nanocomposites; Morphology; Thermal Property
资金
- National Natural Science Foundation of China [51763002]
- International Science and Technology Cooperation Project of Chengdu [2017-GH0200051-HZ, 2020-GH02-00010-HZ]
- Science and Technology Talent Innovation and Entrepreneurship Project of Chengdu [2020-GH02-00010-HZ]
- Opening Project of Key Laboratory of Karst Environment and Geohazard, Ministry of Land and Resources [KST2020k03]
- High-level Innovative Talent-training Program in Guizhou [[2016]5667]
A novel DOPOi-LDH@GO hybrid nanomaterial was fabricated to improve the dispersity and compatibility of layered double hydroxide (LDH) in polypropylene (PP) matrix. The thermal stability and crystallization behaviors of PP/DOPOi-LDH@GO nanocomposites were significantly different from neat PP, with lower thermal stability and decreased spherulite size.
In a purpose to develop good dispersity and compatibility of layered double hydroxide (LDH) in polypropylene (PP) matrix, a novel DOPOi-LDH@GO hybrid nanomaterial was fabricated via three-step reactions including the synthesis of DOPOitaconic acid (DOPOi), an electrostatic adsorption of LDH coating on the surfaces of graphene oxide (GO) (LDH@GO), and the preparation of DOPOi-LDH@GO by an anion exchange. The thermal stability and crystallization behaviors of PP/ DOPOi-LDH@GO nanocomposites are greatly different from neat PP. The thermal stability of PP/DOPOi-LDH@GO nanocomposites are lower than that of neat PP. The addition of nanoparticles provides a non-homogeneous nucleus for PP crystals, producing a heterogeneous nucleation mechanism that increases the spherulite density and decreases the spherulite size. The DOPOi-LDH@GO hinders the crystallization of PP and crushes spherulite integrity. The combination of LDH with GO for agglomeration-tolerant and LDH-modified at the interlamination and surface provides a potential way to improve the efficient dispersion and enhanced interfacial adhesion in the PP matrix. Thus, PP/DOPOi-LDH@GO nanocomposites exhibit a wide range of application potentials.
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