Results 11 to 20 of about 5,108,272 (344)

Study of the long-term degradation behavior of bamboo scrimber under natural weathering

open access: yesnpj Materials Degradation, 2022
In this work, the degradation behavior of bamboo scrimber are investigated under natural weathering system for six years. Fourier transform infrared spectroscopy (FTIR), x-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and ...
Yahui Zhang   +6 more
semanticscholar   +1 more source

Wettability after Artificial and Natural Weathering of Polyethylene Terephthalate

open access: yesEnvironments, 2022
The weathering of plastics is always accompanied by a change in surface properties, especially wettability in the case of water. For plastics weathering in an aquatic environment, wettability plays an important role in transport, sedimentation, and ...
A. Benke   +5 more
semanticscholar   +1 more source

Comparative evaluation of tensile strength, tear strength, color stability and hardness of conventional and 1% trisnorbornenylisobutyl polyhedralsilsesquioxane modified room temperature vulcanizing maxillofacial silicone after a six month artificial aging period

open access: yesThe Journal of Indian Prosthodontic Society, 2022
Aims: Silicone elastomers, chemically known as polydimethylsiloxane used in maxillofacial rehabilitation, over a period of time, undergo degradation and discoloration once aged, thereby reducing clinical longevity.
Drashti Sunil Gandhi, Rajesh Sethuraman
doaj   +1 more source

Impact of corona and radio-frequency plasma treatment on the degradation of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV)

open access: yeseXPRESS Polymer Letters, 2022
Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) is a polyester, produced naturally by microorganisms, with excellent biocompatibility. Corona and radio-frequency (RF) plasma treatment were applied in order to improve the degradation process of PHBV ...
Ana Antunes   +6 more
doaj   +1 more source

Natural weathering of soft- and hardwoods modified by contact and flame charring methods

open access: yesEuropean Journal of Wood and Wood Products, 2022
Exterior cladding boards benefit from a known service life that makes planning of maintenance and replacement procedures easier. Among the different wood modification methods, surface charring of wood is expected to increase the lifespan of wooden ...
M. Kymäläinen   +2 more
semanticscholar   +1 more source

Brazilian tests on layered carbonaceous slate under water-rock interaction and weathering

open access: yesYantu gongcheng xuebao, 2021
The physical-mechanical properties of transversely isotropic layered slates may be degraded due to water-rock interaction (WRI) and natural weathering, which potentially leads to the instability or collapse of tunnels, slopes and mining.
LI Er-qiang 1, 2, FENG Ji-li 1, 2, ZHANG Long-fei 1, 2, ZHANG Hong-chang 1, 2, ZHU Tian-yu 1, 2
doaj   +1 more source

Experimental study on soil-water characteristics and strength characteristics of complete-intense weathering mudstone in seasonal frozen area.

open access: yesPLoS ONE, 2023
To study the soil-water characteristics and shear strength of unsaturated complete-intense weathering mudstone, the soil-water characteristic curve of complete-intense weathering mudstone and the matric suction of mudstone samples under natural state ...
Haotian Guo   +4 more
doaj   +1 more source

Evaluation of the Physical and Adhesive Properties of Natural Weathering Asphalt

open access: yesAdvances in Materials Science and Engineering, 2021
Asphalt suffers from a series of aging processes in the natural environment. This is a significant factor in asphalt pavement diseases. Research of the properties of the decay processes in the natural weathering of asphalt will be helpful in ...
Yanzhu Wang   +4 more
semanticscholar   +1 more source

On the Thermal Stresses Due to Weathering in Natural Stones

open access: yesApplied Sciences, 2021
Natural weathering is known as one of the key mechanisms causing degradation in building materials. Great efforts have been made to develop new materials and new processes for protecting those that already exist.
William Hideki Ito   +6 more
doaj   +1 more source

Studies on the material resistance and moisture dynamics of wood after artificial and natural weathering

open access: yesWood Material Science & Engineering, 2021
Wood is one of the most important building materials. During the service life of wood and derived materials, various degradation factors affect performance.
Eli Keržič, M. Humar
semanticscholar   +1 more source

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