scholarly journals Effect of Modification with Helium Atmospheric-Pressure Plasma and Deep-Ultraviolet Light on Adhesive Shear Strength of Fiber-Reinforced Poly(ether-ether-ketone) Polymer

2020 ◽  
Vol 11 (2) ◽  
pp. 27
Author(s):  
Seigo Okawa ◽  
Norimasa Taka ◽  
Yujin Aoyagi
Keyword(s):  
Atmospheric Pressure ◽  
Testing Machine ◽  
Atmospheric Pressure Plasma ◽  
Contact Angles ◽  
Fiber Reinforced ◽  
Pressure Plasma ◽  
Ether Ether Ketone ◽  
Poly Ether Ether Ketone ◽  
Deep Ultraviolet ◽  
Ether Ketone

We investigated the effect of helium atmospheric-pressure plasma (PL) and deep-ultraviolet (UV) light treatments on the adhesive properties of fiber-reinforced poly(ether-ether-ketone) polymer (PEEK). PEEK disks reinforced with carbon (CPEEK) or glass (GPEEK) fibers were polished, modified with PL and UV for 60 s, and the surface energy was calculated by measuring the contact angles. The disk surfaces were analyzed by X-ray photoemission spectroscopy. Shear bond strength testing was performed using a universal testing machine, and the fracture surfaces were observed by electron probe microanalyzer. Data were analyzed with one and two-way ANOVA and Tukey’s post-hoc test (p < 0.05). The surface energies were increased by the modifications, which created OH functional groups on the surfaces. The bond strengths of CPEEK were increased by PL, and those of GPEEK were increased by PL and UV, owing to chemical bonding at the interface.

scholarly journals Adhesive Properties of Fiber-Reinforced Poly(Ether-Ether-Ketone)Polymer Modified with Helium Atmospheric-Pressure Plasma and Deep-Ultraviolet Light

2020 ◽  
Author(s):  
Seigo Okawa ◽  
Norimasa Taka ◽  
Yujin Aoyagi
Keyword(s):  
Atmospheric Pressure ◽  
Atmospheric Pressure Plasma ◽  
Contact Angles ◽  
Fiber Reinforced ◽  
Adhesive Properties ◽  
Pressure Plasma ◽  
Ether Ether Ketone ◽  
Poly Ether Ether Ketone ◽  
Deep Ultraviolet ◽  
Ether Ketone

We investigated the effect of helium atmospheric-pressure plasma (PL) and deep-ultraviolet (UV) light treatments on the adhesive properties of fiber-reinforced poly(ether-ether-ketone)polymer (PEEK). PEEK disks reinforced with carbon (CPEEK) or glass (GPEEK) fibers were polished, modified with PL and UV for 60 s, and the surface energy was calculated by measuring the contact angles. The disk surfaces were analyzed by X-ray photoemission spectroscopy. Shear bond strength testing was performed using a universal testing machine, and the fracture surfaces were observed by electron probe microanalyzer. Data were analyzed with one and two-way ANOVA and Tukey&rsquo;s post-hoc test (p &lt; 0.05). The surface energies were increased by the modifications, which created OH functional groups on the surfaces. The bond strengths of CPEEK were increased by PL and those of GPEEK were increased by PL and UV, owing to chemical bonding at the interface.

scholarly journals In Situ Surface Modification of Paper-Based Relics with Atmospheric Pressure Plasma Treatment for Preservation Purposes

Polymers ◽  
2019 ◽  
Vol 11 (5) ◽  
pp. 786
Author(s):  
Xu Yan ◽  
Guo-Sai Liu ◽  
Jing Yang ◽  
Yi Pu ◽  
Shuo Chen ◽  
...  
Keyword(s):  
Plasma Treatment ◽  
Atmospheric Pressure ◽  
Atmospheric Pressure Plasma ◽  
Good Method ◽  
Contact Angles ◽  
Water Penetration ◽  
Water Contact ◽  
Pressure Plasma ◽  
Static Water

Paper-based relics, which are an important part of cultural heritage worldwide, are at risk of imminent damage from various environmental sources. To protect them, the atmospheric pressure plasma polymerization of hexamethyldisiloxane (HMDSO) precursor has been explored on paper-based relics in situ. The macro and micro images taken during this process suggest that the in situ plasma treatment does not change the macro morphology and the micro structure of the treated paper-based relic samples. On the other hand, plasma treatment causes the polymerization of the HMDSO which then produces nanoparticles deposited onto the paper-based relics. These nanoparticles provide good waterproof properties with large static water contact angles and smaller rolling angles, which protect the paper-based relics from water penetration. Moreover, since the nanoparticles are deposited onto the fibers, waterproof fastness is ensured. Also, the examined mechanical properties of the treated and untreated paper-based relics indicate that the atmospheric pressure plasma treatment does not affect the strength of the paper very much. The results in this study show that atmospheric pressure plasma treatment with the use of HMDSO precursor is a good method to preserve paper-based relics.

rBMSC and bacterial responses to isoelastic carbon fiber-reinforced poly(ether-ether-ketone) modified by zirconium implantation

2016 ◽  
Vol 4 (1) ◽  
pp. 96-104 ◽  
Author(s):  
Jian Li ◽  
Shi Qian ◽  
Congqin Ning ◽  
Xuanyong Liu
Keyword(s):  
Tissue Engineering ◽  
Carbon Fiber ◽  
Bone Tissue Engineering ◽  
Bone Tissue ◽  
Fiber Reinforced ◽  
Hard Tissue ◽  
Ether Ether Ketone ◽  
Poly Ether Ether Ketone ◽  
Potential Applications ◽  
Ether Ketone

PEEK-based biomaterials have great potential applications as hard tissue substitutes in bone tissue engineering.

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