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

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.

Dielectric performance of composites of BaTiO3 and polymers for capacitor applications under microwave frequency

“…Among all LLDPEBT composites, no remarkable improvement was observed in terms of T peak with the incorporation of the ceramic. From Table 3, the LLDPEBT50 structure showed significantly lower T peak value (467°C), which can be attributed to the heat source zones to speed up the decomposition of matrix during thermal degredation 39 …”

Preparation and properties of starch‐based polyurethane/montmorillonite composite coatings for controlled‐release fertilizer

“…[4][5][6] Therefore, the development of polymer-coated controlled-release fertilizer has attracted considerable attention in the past few years for both fundamental studies and diverse technological applications. [7][8][9] Currently, there are two main preparation methods of polymer coatings for controlled-release fertilizer, one is to prepare polyolefin coating by organic solvent volatilization [10] ; the other is to prepare polyurethane by in-situ polymerization of polyols and isocyanates. [11][12][13] Due to the advantages of simple process and no solvent volatilization, in-situ polymerization method is favored by researchers and manufacturers for controlled-release coating.…”

Structure and properties of bio‐based polyurethane coatings for controlled‐release fertilizer

“…The controlled‐release fertilizer coated with polymer materials can significantly increase fertilizer utilization rate, and provide an effective technical approach to solve the problems of environmental pollution and resource waste caused by low fertilizer utilization rate and serious losses 1–3 . At present, there are two main methods for preparing polymer controlled‐release fertilizer coatings, one is to prepare polyolefin coating by volatilization of organic solvents, 4 the other is to prepare polyurethane coating by polyol and isocyanate through in‐situ polymerization 5–7 . In‐situ polymerization method has become the current research hot of controlled‐release fertilizer coatings due to its simple process and solvent‐free volatility 8–10 .…”