Ultra-high molecular weight polyethylene with hybrid porous structure

Лермонтов, С. А.; Maksimkin, Aleksey V.; Sipyagina, N. A.; Малкова, А. Н.; Kolesnikov, Evgeniy; Zadorozhnyy, M.Yu.; Straumal, Elena A.; Dayyoub, Tarek

doi:10.1016/j.polymer.2020.122744

Cited by 15 publications

(14 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Wang et al [ 40 ] reported that absorbents, such as macroporous foams, are widely used for water treatment due to the excellent percolation characteristic that designates them for use as filters. Lermontov et al [ 41 ] also observed that polyethylene had large, interconnected, and open macropores when studying ultra‐high molecular weight polyethylene (HDPE) with a porous hybrid structure.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Envelopes with microplastics generated from recycled plastic bags for crude oil sorption

Martins

Zanini

Botelho

et al. 2021

Polymer Engineering & Sci

View full text Add to dashboard Cite

Oil spill accidents in marine environments and the lack of disposal of post‐consumer plastic are environmental problems worldwide. This study presents a sustainable alternative for both issues through envelopes filled with microplastics (MPs) from recycled bags for the sorption of spilled crude oil. Through particle size analysis by three different sieves (4, 9, and 20 mesh), different MP sizes were characterized by scanning electron microscope (SEM), Brunauer–Emmett–Teller (BET), density, contact angle (CA), and Fourier‐transform infrared spectroscopy (FTIR). According to their sizes, the MPs were distributed in envelopes and submitted to crude oil sorption capacity and efficiency evaluation. Three MP particle sizes were obtained (from the largest to the smallest, according to the sieve mesh, MP4, MP9, and MP20). SEM images of samples exhibited irregular and porous surfaces, and MP4 had the smallest pore size (8.6 μm). BET showed that MP4 had the highest surface area (0.074 m2/g). The CA > 90° exposed that all samples were hydrophobic. FTIR spectrum demonstrated that the samples from the recycled bags were made of high density polyethylene (HDPE). The MP4 envelopes also had the best crude oil sorption results in capacity and efficiency (1.73 g/g and 68%, respectively), being a promising recycled sorbent in crude oil spillage applications.

show abstract

Section: Resultsmentioning

confidence: 99%

“…[ 48 ] Therefore, the MPs studied are hydrophobic, which can favor oily substances' adsorption. [ 41 ] Amini et al [ 49 ] also observed the hydrophobicity of pure polyethylene and silica‐reinforced polyethylene nanocomposites. Makowski et al [ 50 ] also obtained a hydrophobic material from a PE/PP blend.…”

Section: Resultsmentioning

confidence: 99%

Envelopes with microplastics generated from recycled plastic bags for crude oil sorption

Martins

Zanini

Botelho

et al. 2021

Polymer Engineering & Sci

View full text Add to dashboard Cite

show abstract

“…During the preparation process, a large number of solvents and extractants are consumed, and some of which are also toxic 23–28 . Also, UHMWPE microporous materials can be obtained by adding porogen method 29–34 . The use of extractant makes this method of preparing microporous materials unfriendly to the environment.…”

Section: Introductionmentioning

confidence: 99%

Study on preparing of ultrahigh‐molecular weight polyethylene microporous materials by novel non‐dense injection molding method

Wang

Gao

et al. 2021

J of Applied Polymer Sci

View full text Add to dashboard Cite

In this article, a novel method called non‐dense injection molding with higher efficiency was proposed to prepare ultrahigh‐molecular weight polyethylene (UHMWPE) microcellular open porous materials. The characteristics and the basic principle of the molding process were described, and the effects of shot size, injection pressure, and injection speed on microstructure, average pore size, porosity, and pore size distribution were further studied. The results showed that under the parameters of the shot size, injection pressure and injection speed set as 60%, 63.9 MPa, and 100%, the microporous UHMWPE materials were obtained with the average pore size 38.9 μm and porosity 38.3 vol% respectively, which were close to the microporous structure and properties of the commercial filter products prepared by traditional powder sintering method.

show abstract

“…Cellular open-cell UHMWPE with the appropriate cell size of a few hundred micrometres obtained via hot sintering of loose powder or via sacrificial desalination of hot compression-moulded UHMWPE-NaCl powder mixtures is well-suited for fast vascularization, osseointegration [8], and broad interaction with live cells [9]. Close-cell UHMWPE aerogels obtained via supercritical CO 2 extraction of a solvent [10] promise new developments in mechanical engineering (damping and thermal insulation) and smart applications when hybridized with open-cell UHMWPE sponges [11]. In contrast to bulk UHMWPE's mechanical performance, which has been extensively studied for hip joint applications, the same for cellular UHMWPE is still to be thoroughly carried out with suitable methodological developments.…”

Section: Introductionmentioning

confidence: 99%

Multi-Scale Digital Image Correlation Analysis of In Situ Deformation of Open-Cell Porous Ultra-High Molecular Weight Polyethylene Foam

et al. 2020

View full text Add to dashboard Cite

Porous ultra-high molecular weight polyethylene (UHMWPE) is a high-performance bioinert polymer used in cranio-facial reconstructive surgery in procedures where relatively low mechanical stresses arise. As an alternative to much stiffer and more costly polyether-ether-ketone (PEEK) polymer, UHMWPE is finding further wide applications in hierarchically structured hybrids for advanced implants mimicking cartilage, cortical and trabecular bone tissues within a single component. The mechanical behaviour of open-cell UHMWPE sponges obtained through sacrificial desalination of hot compression-moulded UHMWPE-NaCl powder mixtures shows a complex dependence on the fabrication parameters and microstructural features. In particular, similarly to other porous media, it displays significant inhomogeneity of strain that readily localises within deformation bands that govern the overall response. In this article, we report advances in the development of accurate experimental techniques for operando studies of the structure–performance relationship applied to the porous UHMWPE medium with pore sizes of about 250 µm that are most well-suited for live cell proliferation and fast vascularization of implants. Samples of UHMWPE sponges were subjected to in situ compression using a micromechanical testing device within Scanning Electron Microscope (SEM) chamber, allowing the acquisition of high-resolution image sequences for Digital Image Correlation (DIC) analysis. Special masking and image processing algorithms were developed and applied to reveal the evolution of pore size and aspect ratio. Key structural evolution and deformation localisation phenomena were identified at both macro- and micro-structural levels in the elastic and plastic regimes. The motion of pore walls was quantitatively described, and the presence and influence of strain localisation zones were revealed and analysed using DIC technique.

show abstract

Ultra-high molecular weight polyethylene with hybrid porous structure

Cited by 15 publications

References 16 publications

Envelopes with microplastics generated from recycled plastic bags for crude oil sorption

Envelopes with microplastics generated from recycled plastic bags for crude oil sorption

Study on preparing of ultrahigh‐molecular weight polyethylene microporous materials by novel non‐dense injection molding method

Multi-Scale Digital Image Correlation Analysis of In Situ Deformation of Open-Cell Porous Ultra-High Molecular Weight Polyethylene Foam

Contact Info

Product

Resources

About