Effect of Natural Macromolecule Filler on the Properties of High‐Density Polyethylene (HDPE)

Siddiqui, Mohammad Nahid; Redhwi, Halim Hamid; Younas, Muhammad; Alghizzi, Ahmed G.; Suliman, Munzir H.; Achilias, Dimitris S.

doi:10.1002/masy.201800072

Cited by 14 publications

(9 citation statements)

References 20 publications

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“…XRD analyses reveal that OVPOSS possesses a more crystalline structure compared to MACPOSS. 200) and 2θ = 36.03° (020) suggest the orthorhombic crystal lattice structure of HDPE [46][47][48]. Following the orientation of HDPE fibers, changes in the intensity of the (110) and (200) diffraction peaks were observed.…”

Section: Crystal Structurementioning

confidence: 96%

“…Furthermore, it was discerned that the introduction of POSS, regardless of the type, initiated the suppression of the monoclinic crystal lattice structure in melt spinning HDPE fibers. [46][47][48]. Following the orientation of HDPE fibers, changes in the intensity of the (110) and (200) diffraction peaks were observed.…”

Section: Crystal Structurementioning

confidence: 99%

“…Figure15displays the XRD patterns of spun HDPE and HDPE/POSS fibers. Specifically, the peak observed at 2θ = 21.62° (110) and the presence of two weak diffraction peaks at 2θ = 23.90° (200) and 2θ = 36.03° (020) suggest the orthorhombic crystal lattice structure of HDPE[46][47][48]. Following the orientation of HDPE fibers, changes in the intensity of the (110) and (200) diffraction peaks were observed.…”

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confidence: 96%

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Processing and Characterization of UV Irradiated HDPE/POSS Fibers

Biçer,

Kodal,

Özkoç

2023

Nanomaterials

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High-performance polyethylene fibers, renowned for their superior attributes encompassing a high strength, modulus, and lightness, are conventionally manufactured through the gel spinning method. However, this method is encumbered by several drawbacks, including the requisite application of a separate process to eliminate solvents from the fibers and the utilization of chemicals deleterious to both the environment and human health. Alternatively, the adoption of the melt spinning method presents a cleaner and environmentally friendly approach to attain high-performance fibers. In the present investigation, high-density polyethylene (HDPE) fibers were produced employing the melt spinning method. After the spinning process, strategic orientation procedures were implemented to enhance the crystallinity of the spun fibers. As a concluding step, seeking to elevate the overall performance of the oriented spun HDPE fibers, a cross-linking treatment was applied via UV irradiation. Notably, this study pioneers the incorporation of polyhedral oligomeric silsesquioxane (POSS) hybrid nanoparticles into HDPE during melt spinning, presenting a novel advancement aimed at further enhancing the mechanical properties of oriented HDPE fibers during UV irradiation. For this purpose, two distinct types of POSS, namely octavinyl POSS (OVPOSS) and methacryl POSS (MACPOSS), both having unsaturated double bonds capable of participating in the network structure of oriented HDPE spun during UV cross-linking, were used. The thermal, morphological, and mechanical properties, as well as the crystal structure of samples with and without POSS molecules, were investigated. The mechanical properties of the fibers exhibited higher values in the presence of OVPOSS. The incorporation of OVPOSS and MACPOSS resulted in a noteworthy improvement in the material’s tensile strength, exhibiting a marked increase of 12.5 and 70.8%, respectively. This improvement can be attributed to the more homogeneous dispersion of OVPOSS in HDPE, actively participating in the three-dimensional network structure. After orientation and UV irradiation, the tensile strength of HDPE fibers incorporating OVPOSS increased to 293 MPa, accompanied by a concurrent increase in the modulus to 2.8 GPa. The addition of POSS nanoparticles thus yielded a substantial improvement in the overall performance of HDPE fibers.

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Section: Crystal Structurementioning

confidence: 96%

Section: Crystal Structurementioning

confidence: 99%

mentioning

confidence: 96%

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Processing and Characterization of UV Irradiated HDPE/POSS Fibers

Biçer,

Kodal,

Özkoç

2023

Nanomaterials

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“…Their rational disposal is an important environmental problem, which is solved by using asphaltenes in the production of plastics, emulsions, or carbon fibers [ 61 , 62 ]. Asphaltenes have been used to improve epoxy plastics [ 63 , 64 , 65 , 66 ], polyethylene [ 67 , 68 , 69 , 70 ], polypropylene [ 71 ], poly(methyl methacrylate) [ 72 ], polycarbonate [ 73 ], polystyrene [ 74 , 75 ], and styrene copolymers [ 76 , 77 , 78 ]. Asphaltenes can act as UV absorbers [ 79 ] to prevent the aging of polymers [ 80 ], i.e., can serve as an alternative to traditional UV absorbers.…”

Section: Introductionmentioning

confidence: 99%

Asphaltene-Stabilized Polyisobutylene Pressure-Sensitive Adhesives for Ultraviolet Protection and Surface Bonding

et al. 2023

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The usual way to protect indoor areas from solar UV radiation is to use UV-absorbing materials, which are applied as a thin film on the surface of the windowpane. Asphaltenes are useless wastes from crude oil refining that absorb UV radiation well, which gave the idea of their use in protective coatings. Pressure-sensitive adhesives based on polyisobutylene containing from 5 to 30 wt% of asphaltenes were obtained. Deterioration of the adhesive properties with the introduction of 5–20 wt% of asphaltenes was shown by adhesion tests, which can be associated with the plasticization of the polymer matrix. At the same time, the use of 30 wt% of asphaltenes leads to the polymer matrix reinforcement with the restoration of adhesive properties to the original level or even slightly higher. The rheological study of adhesives at 25 °C and 120 °C showed the structural network formation by asphaltenes at a content of 30 wt%, explaining the increase in adhesion performance. According to microscopy, asphaltenes are flat brown glass shards in a polymer matrix. They absorb electromagnetic radiation, predominantly in the UV range, while maintaining relative translucency in the visible range. This makes it possible to obtain thin films from the asphaltene-filled adhesive for bonding glass sheets to produce UV-blocked and tinted windowpanes.

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“…Studies by Siddiqui et al made use of asphaltene for the fabrication of asphaltene-based polymer composites. [26] They prepared asphaltenes with different concentrations in low-density polyethylene (LDPE), [26] high-density polyethylene (HDPE), [27] polypropylene (PP), [28,29] poly(methyl methacrylate) (PMMA), [1] and polystyrene (PS). [30] The authors studied the rheological, mechanical, and thermal properties of prepared composites.…”

Section: Introductionmentioning

confidence: 99%

Asphaltene/polymer composites: Morphology, compatibility, and rheological properties

2022

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In this study, we investigate the use of asphaltene, a natural waste product that is inevitably formed during heavy oil processing, as a filler in polymer composites. The focus of this work is on the compatibility of various asphaltenes, featuring different polarities, with several polymers, including polypropylene (PP), polystyrene (PS), polymethyl methacrylate (PMMA), and polycarbonate (PC). The Hansen solubility parameters were plotted to predict the compatibility of polymers with different asphaltenes. Then, polymer composites were prepared by two common techniques: melt mixing and solution mixing. The dispersion state of the asphaltenes in each polymer was investigated by using imaging and rheological techniques. This work showed that the network structure of the asphaltenes and, thus, the final properties of the composites can be controlled by the polarity of asphaltenes, mixing technique, and melt viscosity

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Effect of Natural Macromolecule Filler on the Properties of High‐Density Polyethylene (HDPE)

Cited by 14 publications

References 20 publications

Processing and Characterization of UV Irradiated HDPE/POSS Fibers

Processing and Characterization of UV Irradiated HDPE/POSS Fibers

Asphaltene-Stabilized Polyisobutylene Pressure-Sensitive Adhesives for Ultraviolet Protection and Surface Bonding

Asphaltene/polymer composites: Morphology, compatibility, and rheological properties

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