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创新线性低密度聚乙烯纳米复合材料薄膜，用有机层状双氢氧化物增强：制备、形态和增强多功能特性。

Innovative Linear Low Density Polyethylene Nanocomposite Films Reinforced with Organophilic Layered Double Hydroxides: Fabrication, Morphology and Enhanced Multifunctional Properties.

机构信息

College of Chemistry and Material Science, Shandong Agricultural University, Tai'an, 271000, China.

National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, National Engineering & Technology Research Center for Slow and Controlled Release Fertilizers, College of Resources and Environment, Shandong Agricultural University, Tai'an, 271000, China.

出版信息

Sci Rep. 2018 Jan 8;8(1):52. doi: 10.1038/s41598-017-18811-y.

DOI:10.1038/s41598-017-18811-y
PMID:29311688
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5758754/
Abstract

Herein, we reported the successful development of novel nanocomposite films based on linear low density polyethylene (LLDPE) with enhanced anti-drop, optical, mechanical, thermal and water vapor barrier properties by introducing organophilic layered double hydroxides (OLDHs) nanosheets. OLDHs loadings were varied from 0-6 wt.%. Structural analyses using the Fourier transform infrared spectrum (FT-IR), X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX) indicated that the OLDHs nanosheets were homogeneously dispersed with an ordered alignment in the LLDPE matrix. The LLDPE film containing 2 wt.% OLDHs (denoted as OLDHs-2) showed the optimal mechanical, thermal and water vapor barrier properties, whilst the anti-drop and optical performance of the films improved with increasing OLDHs content. The enhanced antidrop properties of the composite films relative to pristine LLDPE can be expected to effectively reduce agricultural losses to disease when the films are applied as agricultural films, whilst the superior light transmittance and water-retaining properties of the composite films will boost agricultural production. Results presented suggest that multifunctional LLDPE/OLDHs nanocomposites show great promise as low cost agricultural plastic films.

摘要

本文报道了一种新型纳米复合薄膜的成功开发，该薄膜以线性低密度聚乙烯（LLDPE）为基体，通过引入亲油性层状双氢氧化物（OLDHs）纳米片，提高了薄膜的防滴剂、光学、机械、热学和水蒸气阻隔性能。OLDHs 的负载量从 0 到 6wt%不等。使用傅里叶变换红外光谱（FT-IR）、X 射线衍射（XRD）、透射电子显微镜（TEM）、扫描电子显微镜（SEM）和能谱（EDX）进行结构分析表明，OLDHs 纳米片在 LLDPE 基体中均匀分散且具有有序排列。含有 2wt% OLDHs 的 LLDPE 薄膜（表示为 OLDHs-2）表现出最佳的机械、热学和水蒸气阻隔性能，而随着 OLDHs 含量的增加，薄膜的防滴剂和光学性能得到提高。与原始 LLDPE 相比，复合薄膜的防滴性能得到增强，当将其用作农用薄膜时，预计可以有效减少因疾病导致的农业损失，而复合薄膜的高透光率和保水性能将促进农业生产。研究结果表明，多功能 LLDPE/OLDHs 纳米复合材料有望成为低成本农用塑料薄膜。

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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/948d/5758754/875c0618f4c2/41598_2017_18811_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/948d/5758754/0299959d1615/41598_2017_18811_Fig10_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/948d/5758754/be4f89181c54/41598_2017_18811_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/948d/5758754/ce9c43a738f4/41598_2017_18811_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/948d/5758754/ae3c42c683b6/41598_2017_18811_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/948d/5758754/3001cfc7afcf/41598_2017_18811_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/948d/5758754/453517d90256/41598_2017_18811_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/948d/5758754/0c5ab52e1feb/41598_2017_18811_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/948d/5758754/3cf4f86b6b75/41598_2017_18811_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/948d/5758754/934a6edc490a/41598_2017_18811_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/948d/5758754/875c0618f4c2/41598_2017_18811_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/948d/5758754/0299959d1615/41598_2017_18811_Fig10_HTML.jpg

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