Results 281 to 290 of about 10,248,710 (343)

UV aging effect on buckling properties of nanoclay particulated intraply hybrid composites

Physica Scripta
This work experimentally investigated how ultraviolet (UV) aging affects the buckling properties of polymer-based intraply hybrid composites reinforced with nanoparticles (NPs) and varied in weight ratios.
Z. A. Oğuz
semanticscholar   +1 more source

Controlled preparation of lignin/titanium dioxide hybrid composite particles with excellent UV aging resistance and its high value application.

International Journal of Biological Macromolecules, 2020
In this work, a novel lignin/titanium dioxide (QAL/TiO2) hybrid composite with regular microstructure and synergistically enhanced UV absorption properties was synthesized by a simple hydrothermal method using lignin and butyl titanate.
Huan Wang, Yuanyuan Wang, Fangbao Fu, Yong Qian, Yonghao Xiao, Dongjie Yang, X. Qiu   +6 more
semanticscholar   +1 more source

Ageing of butyl rubber against UV irradiation

Polymer Photochemistry, 1982
Abstract The photodegradation and stabilisation of butyl rubber have been studied in air in the temperature range of 258 to 318 K using a monochromatic light of 366 nm with a constant intensity flux of 1·68×10 −8 einstein s −1 cm −2 in the absence and presence of cuprous di-isopropyl dithiophosphate. Irradiations were carried out on films at 0, 2,
R.P. Singh, R. Chandra
openaire   +1 more source

Ag-GaP schottky photodiodes for UV sensors

IEEE Transactions on Electron Devices, 2003
We created UV-sensitive photodiodes based on a GaP Schottky barrier. A revised value of the Ag-GaP barrier height (1.55/spl plusmn/0.03 eV) has been determined, and this value is much larger than commonly used for this system. Moreover, it depends on the parameters of the dielectric spacer and may be up to 1.7 eV. The high Schottky barrier improves the
A.N. Pikhtin, S.A. Tarasov, B. Kloth
openaire   +1 more source

Effect of UV Photofunctionalization on Osseointegration in Aged Rats

Implant Dentistry, 2016
This study evaluated the effect of photofunctionalization on osseointegration under the biologically adverse conditions of aging.First of all, bone marrow-derived osteoblastic cells from young (8 weeks old) and aged (15 months old) rats were biologically characterized.
Manabu, Ishijima, Amirreza, Ghassemi, Pooya, Soltanzadeh, Miyuki, Tanaka, Kourosh, Nakhaei, Wonhee, Park, Makoto, Hirota, Naoki, Tsukimura, Takahiro, Ogawa   +8 more
openaire   +2 more sources

Preparation and UV aging of nano-SiO2/fluorinated polyacrylate polyurethane hydrophobic composite coating

, 2020
Hydrophobicity and anti-aging are two key features being sought in coating industry in light of their great importance in the development of self-cleaning materials for outdoor applications.
Fu-ying Yu, Ju Gao, Canpei Liu, Y. Chen, Gang Zhong, C. Hodges, Mingfeng Chen, Huagui Zhang   +7 more
semanticscholar   +1 more source

New preparation method of bitumen samples for UV aging behavior investigation

, 2020
Providing reference for bitumen sample preparation of UV aging behavior characterization, current studies on the light-stable modified asphalt and the existing preparation methods of asphalt film for ultraviolet aging evaluation were summarized and ...
Xiaolong Sun, Xiao Qin, Zhisheng Liu, Yingmei Yin, C. Zou, Shuo Jiang   +5 more
semanticscholar   +1 more source

Response of Aging Chloroplasts to UV Radiation

1990
Extensive reports are available on degradation of chloroplasts during leaf aging(l). Stress like water deficity(2), high temperature(3) and high light intensity (4,5,6) are demonstrated to accelerate leaf aging, consequently a rapid degradation of chloroplasts. Ultaviolet(UV) radiation is known to produce extensive damages of thylakoid membranes (7,8).
Basanti Biswal, G. Kulandaivelu
openaire   +1 more source

Dielectric behavior of aged polyethylene under UV radiation

IEEE Transactions on Dielectrics and Electrical Insulation, 2002
The present paper reports the results of a study of dielectric aging of low-density polyethylene (LDPE) by UV radiation. The extruded polymer contained carbon black particles, approximately 3% in weight. The aging studies were made for polymer without and with carbon black.
E.L. Leguenza, P.C.N. Scarpa, D.K. Das-Gupta   +2 more
openaire   +1 more source

Optical behaviors of esthetic CAD‐CAM restorations after different surface finishing and polishing procedures and UV aging: An in vitro study

The Journal of prosthetic dentistry (Print), 2018
Statement of problem. Esthetic computer‐aided design and computer‐aided manufacturing (CAD‐CAM) materials have various chemical compositions and can be prepared by using different finishing and polishing procedures.
Hamiyet Kılınç, Sedanur Turgut
semanticscholar   +1 more source