Influences of tantalum pentoxide and surface coarsening on surface roughness, hydrophilicity, surface energy, protein adsorption and cell responses to PEEK based biocomposite

Mei, Shiqi; Yang, Lili; Pan, Yongkang; Wang, Deqiang; Wang, Xuehong; Tang, Tingting

doi:10.1016/j.colsurfb.2018.10.081

Cited by 66 publications

(30 citation statements)

References 33 publications

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“…217 (ix) The synergistic effects of roughness with other physical and chemical properties, which are different depending on the 218 The same roughness value in two different types of materials can affect cell responses differently, which can be owing to the differences in their chemistry. [219][220][221][222] Fukuda et al 220 investigated the osseointegration ability of a poly(ether ether ketone) implant by enhancing its surface roughness and/or surface chemistry ( Fig. 11A).…”

Section: Impact Of Biomaterials Surface Physical Properties On Biologimentioning

confidence: 99%

Biological responses to physicochemical properties of biomaterial surface

et al. 2020

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Section: Impact Of Biomaterials Surface Physical Properties On Biologimentioning

confidence: 99%

Biological responses to physicochemical properties of biomaterial surface

et al. 2020

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“…WPU latexes with high polarity generally can produce latex films that have strong hydrophilicity, small water contact angles, and high surface energy 28 . As we can see from Figure 3(a), with the PCED increasing from 0% to 30%, the water contact angle of the WPU film decreased from 79.6 to 70.7°, and the surface energy increased from 77.5 to 97.9 mN/m.…”

Section: Resultsmentioning

confidence: 90%

“…PDI from 0.08 to 0.70 is a midrange value, which is the best operation range of distributed algorithm. When PDI is larger than 0.70, it indicates a very broad particle size distribution and poor stability of the tested sample 28 . As can be seen in Figure 2, the PDI values of WPU latexes were all no more than 0.45, indicating that the good stability of as‐prepared WPU latexes.…”

Section: Resultsmentioning

confidence: 96%

“…Generally speaking, the T‐peel strength of a WPU ink for BOPP thin film composite packaging should at least be higher than 0.6 N/15 mm 36 . The T‐peel strength of WPU ink is not only affected by its adhesion fastness on the substrates but also closely bound up with the cohesive strength, 28 the peeling strength largely depends on the balance between adhesion strength and cohesion strength of interface 37 . The cohesion strength can be judged by observing the failure type of the ink.…”

Section: Resultsmentioning

confidence: 99%

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Synthesis of waterborne polyurethane ink binder with high T‐peel strength and its application in biaxially oriented polypropylene film printing

Zhang

Lian

Cui

et al. 2020

J of Applied Polymer Sci

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In order to improve adhesion properties of waterborne polyurethane (WPU) inks on biaxially oriented polypropylene (BOPP) films, herein, a liquid polyester polyol BY3003 with long‐branched aliphatic chains was used to prepare WPU latexes suitable for BOPP films printing. The application of BY3003 made the surface tension of the prepared latexes not more than 43 mN/m, while that of traditional WPU latex exceeded 55 mN/m. Accordingly, the T‐peel strength of the inks made from these latexes was all above 0.8 N/15 mm. In addition, post chain extension degree, dimethylol butyric acid content, and NCO/OH molar ratio also had significantly effect on latex and film properties of WPU, especially on the T‐peel strength of the corresponding inks. By optimizing these factors, a WPU latex with surface tension as low as 39.6 mN/m and adhesion fastness over 95% on BOPP film were obtained, and the T‐peel strength of its corresponding ink was up to 2.05 N/15 mm, which is the highest value recorded in the literature as far as we know.

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“…It was found, that Nafion and SPEEK composite membranes have comparable thermal properties, as both was able to withstand elevated temperature up to 200 °C. Thermal properties of PEEK was found significantly better than of the SPEEK membranes, and the beginning of decomposition was reported to be at 550 -600 °C [24,25].…”

Section: Thermogravimetric Analysismentioning

confidence: 90%

Composite Membranes of Sulfonated Poly(ether ether ketone) with Active Carbon: Composite Preparation and Investigation of their Properties for Potential Application for CO2 Electrochemical Reduction

Fedorenko

Vaivars²

2020

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In this study, synthesis of sulfonated poly(ether ether ketone) (SPEEK) was performed using sulfonation method with concentrated sulfuric acid. Polymer with three degrees of sulfonation was obtained: 0.87; 0.82 and 0.74. Composite membranes were synthesized with an activated carbon. Ultrasonication method was used in order to achieve homogeneity of distribution of the additive in polymer solution and then in polymer membranes. Membranes with various content of the additive were made: 0; 0.15; 0.3; 0.5; 0.6; 0.8; 1.0; 2.0 and 3.0 %. Swelling degree, water uptake, proton conductivity, isoelectric point, thermal properties and surface morphology of the membranes were analyzed. Proton conductivity was determined using impedance analysis with two electrode system and through-plane configuration. Two methods were used: differential and single membrane method. Differential method is proposed to have significant advantage as it reduces contact resistance, which otherwise is difficult to control and evaluate. Surface zeta potential of membrane surface was investigated, and membranes have shown variation of the potential. Isoelectric point was determined for the membranes with DS 0.82 and carbon content 0 % and 0.5 %, and it was found to be at pH 4. Water uptake and swelling degree of the membranes was studied, and active carbon content was found to not have major influence on those properties, but higher content of sulfonic groups leads to increased water uptake and swelling degree. Thermogravimetric analysis showed slightly better thermal properties of membranes with the additive, compared to the blank membranes, which can be related to differences in the water uptake. Surface of the membrane was investigated using scanning electron microscopy, and no considerable defects were observed.

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Influences of tantalum pentoxide and surface coarsening on surface roughness, hydrophilicity, surface energy, protein adsorption and cell responses to PEEK based biocomposite

Cited by 66 publications

References 33 publications

Biological responses to physicochemical properties of biomaterial surface

Biological responses to physicochemical properties of biomaterial surface

Synthesis of waterborne polyurethane ink binder with high T‐peel strength and its application in biaxially oriented polypropylene film printing

Composite Membranes of Sulfonated Poly(ether ether ketone) with Active Carbon: Composite Preparation and Investigation of their Properties for Potential Application for CO2 Electrochemical Reduction

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