Published August 10 2020, 261 pages, 76 tables, 76 figures
Most self-cleaning coatings on glass can be divided into two categories, hydrophobic and hydrophilic.
Hydrophobic surface finishes are inspired by the self-cleaning mechanism of lotus plants and other organisms (e.g., many large-winged insects). They have been applied to paints, glass, textiles, and more, reducing the need for chemical detergents and costly labour. The coatings unique nano-textured surface and overcoat reduces surface energy and contact surface area, giving the coatings anti-contamination and self-cleaning properties that minimize dust, liquid, and ice accumulation on its surface, similar to a leaf on the Lotus plant.
Hydrophilic self-cleaning coatings utilizes photocatalytic decomposition to self-clean glass. The working principle of the hydrophilic layer is based on having a film of titanium dioxide coating, which has two working stages: the photo-catalytic stage and the hydrophilic sheathing stage. During the “hydrophilic" stage, rain washes away the dirt and leaves almost no streaks on the glass as the hydrophilic glass spreads the water evenly over the surface coating. Self-cleaning surfaces based on photocatalytic processes are applied in areas such as buildings, road paving, vehicle side-view mirrors, lamps, and even in textiles. Among the nanoscale semiconductor materials based on oxides, titanium dioxide (TiO2) is widely used.
Report contents include:
Evolution of self-cleaning coatings to now and future prospects.
Development of self-cleaning coatings-production methods, recent developments, new products.
Analysis of hydrophobic and hydrophilic surfaces and the emergence of super-hydrophobic and super-hydrophilic coatings technologies.
New developments in self-cleaning coatings including mutli-functional and smart self-cleaning coatings.
Applications and market analysis for self -cleaning coating in Construction, Automotive, Solar, Textiles and Apparel, Consumer Electronics, Medical Coatings, Marine and Household Care sectors.
Revenue forecasts to 2030 across all sectors.
132 company profiles including products and target markets. Companies profiled include Adaptive Surface Technologies, Advanced Materials-JTJ s.r.o., TOTO, Pureti Group LLC, Swift Coat Inc and many more.
1 EXECUTIVE SUMMARY 21
1.1 Why nanocoatings? 21
1.2 Advantages over traditional coatings 21
1.3 Self-cleaning 23
1.3.1 Hydrophobic coating 23
1.3.2 Hydrophilic coating 24
1.4 Markets for self-cleaning coatings 24
1.5 Developments in solar cells 25
1.6 Improvements and disruption in coatings markets 26
1.7 Anti-viral nanoparticles and nanocoatings 28
1.8 End user market for self-cleaning coatings 30
1.9 The self-cleaning coatings market in 2020 33
1.9.1 Global revenues by nanocoatings, by type 33
1.9.2 Regional demand for self-cleaning coatings 35
1.10 Market challenges 36
2 DEVELOPMENT OF SELF-CLEANING COATINGS 37
2.1 Properties 37
2.2 Benefits of using nanocoatings 38
2.2.1 Types of nanocoatings 39
2.3 Production and synthesis methods 40
2.4 Hydrophobic coatings and surfaces 51
2.4.1 Hydrophobic coatings 51
126.96.36.199 Properties 52
2.4.2 Hydrophilic/photocatalytic coatings 52
2.4.3 Super Hydrophilic Surfaces 54
188.8.131.52 Application in facemasks 54
2.5 Superhydrophobic coatings and surfaces 55
2.5.1 Properties 55
184.108.40.206 Antibacterial use 56
2.5.2 Durability issues 56
2.6 Oleophobic and omniphobic coatings and surfaces 57
2.6.1 SLIPS 58
2.6.2 Covalent bonding 58
2.6.3 Step-growth graft polymerization 58
2.6.4 Applications 58
3 SELF-CLEANING NANOCOATINGS MARKET ANALYSIS 60
3.1 SELF-CLEANING HYDROPHOBIC COATINGS 60
3.1.1 Market overview 60
3.1.2 Market assessment 61
3.1.3 Market drivers 62
3.1.4 Applications 62
3.1.5 Global market size 63
220.127.116.11 Adjusted for COVID-19 market growth scenarios 66
Figure 1. Water droplet on Lotus WC2 coating with 150 degree contact angle (left); and Microscopic nano-texture of Lotus WC2 (right). 24
Figure 2. Water drops picking up and removing dust and dirt particles from a highly superhydrophobic surface. 25
Figure 3. Schematic of anti-viral coating using nano-actives for inactivation of any adhered virus on the surfaces. 29
Figure 4: Global revenues for nanocoatings, 2010-2030, millions USD, by type. 35
Figure 5: Regional demand for nanocoatings, 2010-2020, millions USD. 35
Figure 6: Hydrophobic fluoropolymer nanocoatings on electronic circuit boards. 38
Figure 7: Nanocoatings synthesis techniques. 41
Figure 8: Techniques for constructing superhydrophobic coatings on substrates. 43
Figure 9: Electrospray deposition. 44
Figure 10: CVD technique. 45
Figure 11: Schematic of ALD. 47
Figure 12: SEM images of different layers of TiO2 nanoparticles in steel surface. 48
Figure 13: The coating system is applied to the surface.The solvent evaporates. 49
Figure 14: A first organization takes place where the silicon-containing bonding component (blue dots in figure 2) bonds covalently with the surface and cross-links with neighbouring molecules to form a strong three-dimensional. 49
Figure 15: During the curing, the compounds or- ganise themselves in a nanoscale monolayer. The fluorine-containing repellent component (red dots in figure 3) on top makes the glass hydro- phobic and oleophobic. 50
Figure 16: (a) Water drops on a lotus leaf. 51
Figure 17: A schematic of (a) water droplet on normal hydrophobic surface with contact angle greater than 90° and (b) water droplet on a superhydrophobic surface with a contact angle > 150°. 52
Figure 18: Contact angle on superhydrophobic coated surface. 55