Robust Hybrid Omniphobic Surface for Stain Resistance

2021 ◽  
Author(s):  
Zhengfeng Ma ◽  
Yang Wu ◽  
Rongnian Xu ◽  
Zhihuan Li ◽  
Yubo Liu ◽  
...  
Keyword(s):  
Stain Resistance

scholarly journals Improving the technology of repair painting with powder-coated paints in agro-industrial complex

2021 ◽  
Vol 285 ◽  
pp. 07012
Author(s):  
Andrey Bodrov ◽  
Anton Panichkin ◽  
Denis Lomakin ◽  
Andrew Simushkin
Keyword(s):  
Contact Angle ◽  
Roughness Parameter ◽  
Corrosion Damage ◽  
Industrial Complex ◽  
Powder Coatings ◽  
Chemical Methods ◽  
Painted Surface ◽  
Stain Resistance ◽  
Separation Force ◽  
Contact Angle Of Wetting

The article presents the results of studies to determine the dependence of the degree of adhesion and the separation force of the powder coatings layer on the roughness parameter of the substrate, as well as the contact angle of wetting for various methods of preparing the painted surface by chemical methods. In addition, practical tests for stain resistance were carried out, which showed the absence of corrosion damage, as well as a slight change in color, gloss of coatings, chalking and dirt retention on the studied coating samples.

Research on a Flow Resistance Mass Flow Sensor

2014 ◽  
Vol 904 ◽  
pp. 345-351
Author(s):  
Xin Li ◽  
Ling Yu ◽  
Chun Xue Jia
Keyword(s):  
Service Life ◽  
Low Power ◽  
Power Dissipation ◽  
Flow Resistance ◽  
Flow Sensor ◽  
Flow Ratio ◽  
Stain Resistance ◽  
Low Power Dissipation ◽  
Mass Flow Sensor ◽  
Large Flow

A flow resistance mass (momentum) flow sensor has been designed. The structure and principle of flow sensor are introduced. The testing results show that the flow sensor is excellent in stain resistance, large flow ratio, low power dissipation and long service life. A heatmeter can be achieved using the designed sensor with matching integer operation and display modules.

scholarly journals STUDIES ON VARIOUS FUNCTIONAL PROPERTIES OF TITANIA THIN FILM DEVELOPED ON GLAZED CERAMIC WALL TILES

2013 ◽  
Vol 22 ◽  
pp. 79-92 ◽  
Author(s):  
ASHA ANIL ◽  
BANGORIA DARSHANA R ◽  
S. N. MISRA
Keyword(s):  
Thin Film ◽  
Functional Properties ◽  
Curing Temperature ◽  
Alkali Resistance ◽  
Bacterial Reduction ◽  
E Coli ◽  
Coated Substrate ◽  
Stain Resistance ◽  
Increase With Increase ◽  
Coated Surface

A sol-gel based TiO 2 thin film was applied on glazed wall tiles for studying its various functional properties. Thin film was deposited by spin coating on the substrate and subjected to curing at different temperatures such as 600°C, 650, 700°C, 750°C and 800°C with 10 minutes soaking. The gel powder was characterized by FTIR, DTA/TG and XRD. Microstructure of thin film was analyzed by FESEM and EDX. Surface properties of the coatings such as gloss, colour difference, stain resistance, mineral hardness and wettability were extensively studied. The antibacterial activity of the surface of coated substrate against E. coli was also examined. The durability of the coated substrate in comparison to the uncoated was tested against alkali in accordance with ISO: 10545 (Part 13):1995 standard. FESEM images showed that thin films are dense and homogeneous. Coated substrates after firing results in lustre with high gloss, which increased from 330 to 420 GU as the curing temperature increases compared to that of uncoated one (72 GU). Coated substrate cured at 800°C shows higher mineral hardness (5 Mohs’) compared to uncoated one (4 Mohs’) and films cured at all temperatures showed stain resistance. The experimental results showed that the resistance towards alkali attack increase with increase in curing temperature and alkali resistance of sample cured at 800 °C was found to be superior compared to uncoated substrate. Contact angle of water on coated surface of substrates decreased with increase in temperature. Bacterial reduction percentages of the coated surface was 97% for sample cured at 700°C and it decreased from 97% to 87% as the curing temperature increased to 800 °C when treated with E. coli bacteria.

scholarly journals Comparative study on design and functionality requirements for senior-friendly furniture for sitting

BioResources ◽  
2021 ◽  
Vol 16 (3) ◽  
pp. 6244-6266
Author(s):  
Beata Fabisiak ◽  
Anna Jankowska ◽  
Robert Kłos ◽  
Joan Knudsen ◽  
Sari Merilampi ◽  
...  
Keyword(s):  
Comparative Study ◽  
Muscle Mass ◽  
Design Process ◽  
Human Body ◽  
Aging Process ◽  
Health Implications ◽  
Clear Preference ◽  
Stain Resistance ◽  
Demographic Challenge ◽  
Multiple Health

Furniture manufacturers’ response to the demographic challenge of aging nations is an important issue. The number of seniors is rising worldwide. The aging process often results in multiple health implications, including weaker mobility, decrease in muscle mass, and change in anthropometrical dimensions of the human body. Thus, the furniture offered should be adjusted to the needs of an increasing group of senior customers. To identify seniors’ preferences in relation to characteristics of sitting furniture, international surveys with 627 respondents aged 60+ years were conducted in Poland, Germany, Denmark, Finland, Latvia, and Lithuania. The implementation of this data in the design process may result in creation of the market offer meeting seniors’ needs. Design and functionality features were examined to provide guidance for senior-friendly development of furniture for sitting. Among the most important findings is the clear preference of having an armchair with the high backrest reaching above the head, a chair with armrests and an upholstered backrest and seat. Furthermore, respondents paid attention to the durability of furniture, stain resistance of upholstery, and adaptation of the furniture to the user’s dimensions, e.g., having influence on the height and depth of the seat before the purchase.

Fabrication of superoleophobic cotton fabric for multi-purpose applications

2019 ◽  
Vol 377 (2150) ◽  
pp. 20190129 ◽  
Author(s):  
Balraj K. Tudu ◽  
Aditya Kumar ◽  
Bharat Bhushan
Keyword(s):  
Cotton Fabric ◽  
Water Separation ◽  
Practical Applications ◽  
Wetting Properties ◽  
Stain Resistance ◽  
Mechanical Durability ◽  
Oil Water Separation ◽  
Oil Water ◽  
Self Cleaning ◽  
Liquid Repellency

Superoleophobicity is of interest for practical applications such as liquid repellency, self-cleaning, stain resistance, anti-bacterial properties and oil–water separation. In this work, the superoleophobic coating on cotton fabric was applied by simple immersion in TiO 2 nanoparticles, perfluorodecyltriethoxysilane and tertraethylorthosilicate solution. Its anti-wetting properties, surface morphology and functionality were characterized. The coated cotton fabric shows superoleophobicity with oil (surface tension more than 27 mN m −1 ) contact angle of 152° and tilt angle of 6°. Furthermore, the superoleophobic cotton fabric was demonstrated to exhibit self-cleaning, stain resistance, mechanical durability, chemical stability, thermal stability, anti-bacterial properties and oil–water separation capabilities. This article is part of the theme issue ‘Bioinspired materials and surfaces for green science and technology (part 2)’.

Sign in / Sign up

Export Citation Format

Share Document