Influences of Electron Beam Irradiation on Misting for Transparent Polycarbonate Resin

Oguri, Kazuta; Takahashi, Tatsuya; Kadowaki, Atsushi; Tonegawa, Akira; Nishi, Yoshitake

doi:10.2320/jinstmet.68.537

Cited by 16 publications

(5 citation statements)

References 6 publications

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“…HLEBI with quick and safe adhesion method applied in very short bursts of ~0.20 s is reported to improve the mist resistance and wetting of materials, [8][9][10][11] and increases polymer adhering to bers raising impact strength in GFRP. 12,13) HLEBI has been found to successfully create or enhance adhesive strength of dif cult to bond metal-polymer joints.…”

Section: Introductionmentioning

confidence: 99%

Adhesive Force Improvement of Lamination with 18-8 Stainless Steel and CFRP Separately Irradiated by Electron Beam Prior to Assembly and Hot-Pressing

et al. 2016

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Adhesive 2-layer lamination joints of 18mass%Cr-8mass%Ni austenite stainless steel and carbon ber reinforced polymer (18-8/CFRP) were prepared using a new adhesion method consisting of applying low dose of 0.13 MGy of homogeneous low energy electron beam irradiation (HLEBI) to connecting surfaces of the 18-8 and CFRP prior to assembly and hot-pressing in vacuum under atmospheric pressure of about 1 Pa for 2 h at 401 ± 0.5 K. Although untreated 18-8/CFRP joint exhibited decent adhesion by hot-pressing, application of 0.13 MGy HLEBI dose apparently improved the adhesive force of peeling resistance ( o F p ) of the 18-8/CFRP joint 145% at median accumulative peeling probability (P p = 0.50) from 18.9 to 27.4 Nm −1. In addition, the statistically lowest o F p for safety design (F s at P p = 0) iterated by the 3-parameter Weibull equation was raised from zero for the untreated to 5.2 Nm −1 for the 0.13 MGy samples indicating increased reliability by the HLEBI. The higher adhesive strength induced by HLEBI was explained by results of XPS (X-Ray Photoelectron Spectroscopy) observations of the peeled surface of 18-8 side of lamination with and without 0.13 MGy-HLEBI. 0.13 MGy-HLEBI slightly increased the number of C=C bonds instead of slightly decreasing the numbers of C-C, C-H and O=C-O bonds near 18-8/CFRP interface. In addition, both increasing oxygen atoms and decreasing hydrogen atoms strongly attributed to bonding force at interface of epoxy of 18-8/CFRP. Since the experimental data showed the optimum HLEBI dose was about 0.13 MGy, above which at 0.13 MGy the o F p began to drop, carefulness in optimization was highly recommended when applying in industry to insure safety.

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Section: Introductionmentioning

confidence: 99%

Adhesive Force Improvement of Lamination with 18-8 Stainless Steel and CFRP Separately Irradiated by Electron Beam Prior to Assembly and Hot-Pressing

et al. 2016

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“…On the other hand, low-energy electron beam (EB) irradiation is generally industrial surface treatment process to enhance surface energy and misting resistance of polymer [1]. To enable freedom from misting and easy sterilization of ceramics, EB irradiation techniques are presently being developed to assist the production of dentists' mirrors, sapphire lenses and diamond windows for endoscope [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

EBI Joining Between Different Polymers Without Adhesive Materials

et al. 2007

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Joining between Nylon-film and Silicone-rubber was successfully developed. Effects of EB-irradiation on joining strength of different polymers without adhesive materials were investigated by using homogeneous EB irradiation. The EB irradiation increased the joining strength of the joining sample between Nylon-film and Silicone-rubber. Excess EB-irradiation more than 0.3 MGy apparently decreased the joining strength. To discuss the influences of electron beam irradiation on the joining strength, ESR signals related to dangling bonds were observed. Since the EB irradiation produced detectable dangling bonds on Nylon-film, using dangling bonds probably joined the different polymers.

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“…The Charpy impact value was expressed by the following eq. (2). By this measurement, a simple revision method for energy is used at the time of the Charpy impact.…”

Section: Charpy Impact Testmentioning

confidence: 99%

“…[1][2][3] The cheap composite polymer dispersed by metal powders often feels like heavy and cold such as metals. 4) Namely, the mixing metal powders in polymer often induce an attractive image to make practical use of articles for new markets.…”

Section: Introductionmentioning

confidence: 99%

Effects of Water Absorption on Impact Value of Aluminum Dispersed Composite Nylon6

Kanda

Nishi

2009

Mater. Trans.

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Composite polymers, which are nylon6 materials with aluminum powders dispersed homogeneously, are prepared. Influences of water absorption on Charpy impact value of composite polymers have been investigated. Although the aluminum dispersion from zero to 40 vol%Al decreases the impact value, the water absorbing treatment for 10 5 s at boiling point largely increases the impact values of all composite polymers. It is explained that water molecules in nylon6 mainly relaxes the impact force. If the water absorption also enhances the interfacial energy to form the crack in nylon6 and its composites, the high impact value with smooth undulating surface can be explained.

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Influences of Electron Beam Irradiation on Misting for Transparent Polycarbonate Resin

Cited by 16 publications

References 6 publications

Adhesive Force Improvement of Lamination with 18-8 Stainless Steel and CFRP Separately Irradiated by Electron Beam Prior to Assembly and Hot-Pressing

Adhesive Force Improvement of Lamination with 18-8 Stainless Steel and CFRP Separately Irradiated by Electron Beam Prior to Assembly and Hot-Pressing

EBI Joining Between Different Polymers Without Adhesive Materials

Effects of Water Absorption on Impact Value of Aluminum Dispersed Composite Nylon6

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