Highly hydrophilic ultra-high molecular weight polyethylene powder and film prepared by radiation grafting of acrylic acid

Wang, Honglong.; Xu, Lu; Li, Rong; Pang, Lijuan; Hu, Jiangtao; Wang, Mouhua.; Wang, Guozhong

doi:10.1016/j.apsusc.2016.03.175

Cited by 18 publications

(9 citation statements)

References 48 publications

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“…Chemical structure variation would alter surface properties such as wettability [92]. Static CA can efficiently characterize surface hydrophilicity [62,63]. Thus, CA experiments were performed.…”

Section: Resultsmentioning

confidence: 99%

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Intensive study on structure transformation of muscovite single crystal under high-doseγ-ray irradiation and mechanism speculation

et al. 2019

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Intensive study on structure transformation of muscovite single crystal under high-dose γ -ray irradiation is essential for its use in irradiation detection and also beneficial for mechanism cognition on defect formation within a matrix of clay used in the disposal of high-level radioactive waste (HLRW). In this work, muscovite single crystal was irradiated with Co-60 γ ray in air at a dose rate of 54 Gy min −1 with doses of 0–1000 kGy. Then, structure transformation and mechanism were explored by Raman spectrum, Fourier-transform infrared spectrum, X-ray diffraction, thermogravimetric analysis, CA, scanning electron microscope and atomic force microscopy. The main results show that variations in the chemical/crystalline structure are dose-dependent. Low-dose irradiation sufficiently destroyed the structure, removing Si–OH, thus declining hydrophilicity. With dose increase up to 100 kGy, CA increased from 20° to 40°. Except for hydrophilicity variation, shrink occurred in the (004) lattice plane which later recovered; the variation range at 500 kGy irradiation was 0.5% close to 0.02 Å. The main mechanisms involved were framework break and H 2 O radiolysis. Framework break results in Si–OH removal and H 2 O radiolysis results in extra OH introduction. The extra introduced OH probably results in Si–OH bond regeneration, lattice plane shrink and recovered surface hydrophilicity. The importance of framework break and H 2 O radiolysis on structure transformation is dose-dependence. At low doses, framework break seems more important while at high doses H 2 O radiolysis is important. Generally, variations in the chemical structure and surface property are nonlinear and less at high doses. This indicates using the chemical structure or surface property variation to describe irradiation is correct at low doses but not at high doses. This finding is meaningful for realizing whether muscovite is suitable for detecting high-dose irradiation or not, and mechanism exploration is efficient for identifying the procedure for defect formation within the matrix of clay used in disposal HLRW in practice.

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Section: Resultsmentioning

confidence: 99%

“…Scanning electron microscope (SEM) measurements were carried out on a Zeiss MERLIN Compact 14184 instrument with an acceleration voltage of 8 kV. Prior to the measurement, a thin layer of gold was coated on the sample surface to increase electrical conductivity [63].…”

Section: Scanning Electron Microscopementioning

confidence: 99%

Intensive study on structure transformation of muscovite single crystal under high-doseγ-ray irradiation and mechanism speculation

et al. 2019

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“…Irradiation is effective to destroy chemical bonds. 34,35 With regard to phlogopites, its TO 4 tetrahedron structure is probably stable. This can be explained as follows.…”

Section: Chemical Structure Analysismentioning

confidence: 99%

“…In most of the cases, irradiation results in obvious chemical structure variations under the premise of the partial departure of atoms or the participation of additional species. 17,20,34,35,42,43 As the main chemical bond species changed marginally aer irradiation, the vibration of the framework also slightly changed. This assumption could probably explain the slight variations observed within the Raman spectra.…”

Section: Chemical Structure Analysismentioning

confidence: 99%

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Intensive evaluation of radiation stability of phlogopite single crystals under high doses of γ-ray irradiation

et al. 2019

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The effect of polyethylene‐graft‐maleic anhydride on ultrahigh molecular weight polyethylene/carboxymethyl cellulose blends

Ozcan

Doğancı

2021

J of Applied Polymer Sci

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In this study, it is aimed to produce biocompatible polymer blends by using ultrahigh molecular weight polyethylene (UHMWPE) as a matrix and a cellulose-based polymer, carboxymethyl cellulose (CMC) as filler at different concentrations. Polyethylene-graft-maleic anhydride (PE-g-MA) was used as compatibilizer in order to ensure effective distribution of hydrophilic cellulose particles in hydrophobic UHMWPE matrix and its effect on blends was investigated. The UHMWPE/CMC blends were fabricated by sintering of two powder materials and effects of different sintering conditions such as sintering temperature and time were examined on the morphological and surface properties of blends. The hardness, air permeability, contact angle variations on the blend surfaces were investigated. 150 C-30 min sintering condition was determined as optimum sintering time and temperature to prepare the blends having adequate hardness with high-air permeability properties. It was found that with the increase of CMC content in the blends the hardness, air permeability and contact angle values were decreased. The addition of PE-g-MA caused an increment for blends prepared at 150 C-30 min conditions having high-air permeability.

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Highly hydrophilic ultra-high molecular weight polyethylene powder and film prepared by radiation grafting of acrylic acid

Cited by 18 publications

References 48 publications

Intensive study on structure transformation of muscovite single crystal under high-doseγ-ray irradiation and mechanism speculation

Intensive study on structure transformation of muscovite single crystal under high-doseγ-ray irradiation and mechanism speculation

Intensive evaluation of radiation stability of phlogopite single crystals under high doses of γ-ray irradiation

The effect of polyethylene‐graft‐maleic anhydride on ultrahigh molecular weight polyethylene/carboxymethyl cellulose blends

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