Direct fluorination of Twaron fiber and investigation of mechanical thermal and morphological properties of high density polyethylene and Twaron fiber composites

Abstract Polyblend films were prepared from high-density polyethylene (HDPE) and poly(l-lactic acid) (PLLA) up to 20% PLLA by the melt blending method in an extrusion mixer with post-extrusion blown film attachment. The 80/20 (HDPE/PLLA) blend was compatibilized with maleic anhydride grafted polyethylene (PE-g-MA) in varying ratios [up to 8 parts per hundred of resin (phr)]. Tensile properties of the films were evaluated to obtain optimized composition for packaging applications of both non-compatibilized and compatibilized blends. The compositions HDPE80 (80% HDPE and 20% PLLA) and HD80C4 (80% HDPE, 20% PLLA and 4 phr compatibilizer) were found to be optimum for packaging applications. However, better tensile strength (at yield) and elongation (at break) of 80/20 (HDPE/PLLA) blend were noticed in the presence of PE-g-MA. Further, thermal properties and morphologies of these blends were evaluated. Differential scanning calorimetry (DSC) study revealed that blending does not much affect the crystalline melting point of HDPE and PLLA, but heat of fusion of 80/20 (HDPE/PLLA) blend was decreased as compared to that of neat HDPE. Spectroscopy studies showed evidence of the introduction of some new groups in the blends and gaining compatibility in the presence of PE-g-MA. The compatibilizer influenced the morphology of the blends, as apparent from scanning electron microscopy (SEM) and supported by Fourier transform infrared (FTIR).

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Effect of wood flour content on the optical color, surface chemistry, mechanical and morphological properties of wood flour/recycled high density polyethylene (rHDPE) composite

10.1063/1.5034533 ◽

2018 ◽

Author(s):

Chan Kok Sheng ◽

Khairul Anuar Mat Amin ◽

Kwa Bee Kee ◽

Mohd Faiz Hassan ◽

E. Ghapur E. Ali

Keyword(s):

Surface Chemistry ◽

High Density Polyethylene ◽

Wood Flour ◽

High Density ◽

Morphological Properties ◽

Optical Color

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Composites of high density polyethylene and different grades of calcium carbonate: Mechanical, rheological, thermal, and morphological properties

Journal of Applied Polymer Science ◽

10.1002/app.23920 ◽

2006 ◽

Vol 101 (4) ◽

pp. 2559-2564 ◽

Cited By ~ 10

Author(s):

Sylvia C. S. Teixeira ◽

Maria M. Moreira ◽

Aline P. Lima ◽

Luciene S. Santos ◽

Bianca M. da Rocha ◽

...

Keyword(s):

Calcium Carbonate ◽

High Density Polyethylene ◽

High Density ◽

Morphological Properties

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Tensile, Flexural, and Morphological Properties of Jute/Oil Palm Pressed Fruit Fibers Reinforced High Density Polyethylene Hybrid Composites

Fibers ◽

10.3390/fib9110071 ◽

2021 ◽

Vol 9 (11) ◽

pp. 71

Author(s):

Oluyemi Ojo Daramola ◽

Oluwatosin Abiodun Balogun ◽

Adeolu Adesoji Adediran ◽

Sheriff Olalekan Saka ◽

Isiaka Oluwole Oladele ◽

...

Keyword(s):

Oil Palm ◽

High Density Polyethylene ◽

Hybrid Composites ◽

Sodium Hydroxide Solution ◽

Fiber Surface ◽

Morphological Characterization ◽

High Density ◽

Jute Fiber ◽

Morphological Properties ◽

Flexural Properties

The incorporation of materials that were formally regarded as agricultural wastes into polymeric matrix has drawn the attention of many researchers in recent years. This research focused on reinforcing high-density polyethylene (HDPE) matrix with treated jute fiber (JF)/oil palm pressed fruit fibers (OPPFF) at varying weight proportions. JF and OPPFF were cut to 2.5 mm length and were chemically treated thereafter with 1 M and 1.5 M sodium hydroxide solution respectively. The composites were produced using the compression molding technique. The morphological characterization of the fibers and composites for untreated and treated samples was studied with the aid of a scanning electron microscope (SEM). Tensile and flexural properties of the produced composite samples were also determined. From the result, the surface morphology of the fiber after treatment showed that there was obvious exposure of the fiber surface and removal of impurities as this influenced the microstructure of the composites and in turn the tensile and flexural properties. Hence, it was observed that 20 wt.% treated jute fiber addition shows the most significant enhancements in terms of tensile and flexural properties. The study exposed the effect of surface modification of JF/OPPF hybridization on HDPE matrix composite.

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