Molten Marker Boards
The term'molten marker board' refers to a writing surface that can be written on and erased easily. These boards are made from tempered or ion-exchanged glass and exhibit properties of both ion-exchanged glass and written glass. They have a thickness of no more than two millimeters, a layer depth of twenty microns or more, and a surface compressive strength of 300 MPa or higher.
Aluminium aluminosilicate glass
Writeable erasable marker boards are made from strengthened glass. Such glass exhibits certain optical properties that are desirable in writeable erasable marker boards. In particular, the glass must have a shadow parallax to thickness ratio of 1.73 and a surface compressive stress of 300 MPa or more. Typical properties of such glass include low permeability, high fracture toughness, and low haze.
Among the different types of glass, aluminosilicate glass is the strongest. Its high resistance to thermal shock makes it a valuable material for high-temperature thermometers and seals. Its comparatively low density and light weight make it a popular choice for mobile devices. It can withstand temperatures comparable to ceramics, which makes it a good choice for use in electronics.
To make the glass stronger, Corning employs a process known as ion exchange. The process involves dunking the glass into a hot potassium salt bath. This causes the sodium ions to diffuse out of the glass, allowing the potassium ions to diffuse in. The process requires approximately four to 120 hours. However, Corning does not state the exact duration of the process. The bath must remain at a temperature of 400 to 500 degrees Celsius for the process to work. Maintaining this temperature for a long period of time requires more electrical energy.
The chemical composition of aluminosilicate glass varies according to the Al/Na ratio. A glass that contains 60 mol% Al/60 mol% SiO2 exhibits a low NBO. As the Al/Na ratio decreases, the NBO decreases until it is undetectable. The ratio at 0.33 and lower is undetectable.
Ion-exchanged glass moltent markers boards are a novel class of erasable and writeable glass articles. These glass articles feature a front and back surface that are bonded together by a layer of ion-exchanged glass. The thickness of ion-exchanged glass in these articles is generally less than two millimeters (mm) and at least 20 microns in depth. Furthermore, they have surface compressive strength of 300 MPa or more.
Ion-exchanged glass moltent markers were first created using a process that produces a frit that is not able to enter the glass matrix. These frits are deposited on the boundary or surface of the glass. The C, S, and N2 content were measured and the resulting composition of the glass matrix was examined. High carbon content may lead to a clogged nozzle during vitrification, erosion of refractory material, and reduction of bridging oxygen. Sulfur content is higher and causes problems with controlling temperature and reducing the number of bridging oxygen.
Recent research and development has spawned new applications for ion-exchanged glass molten markers. These new materials have exceptional mechanical properties and are widely used in various electronic devices, including tablets and hand-held displays. They are also increasingly used in the automotive and architectural markets. However, this has not stopped scientists from further developing these materials. So, how can ion-exchanged glass be used in architectural projects?
The reinforced glass article exhibits certain optical properties. These properties make it suitable for writing on write-erasable markers. The angle of incidence of shadow is 60 degrees. The thickness of sample A-D is less than two millimeters, while samples E-H have greater thicknesses. The shadow parallax is larger in samples E-H, suggesting that they have a higher refractive index.
These boards are made from melamine resin, a white crystalline substance that is produced by heating cyanamide, a type of chemical compound. It is also used in the manufacture of structural lumber and plywood. Melamine-based laminates are used in a variety of applications, including end jointing, scarf jointing, and bonding low and high-pressure laminates. Melamine-based products are resistant to heat, moisture, and abrasion.
The term melamine is often confused with the substance called melanin, which is a chemical related to melamine. The name melamine refers to the substance's ability to resist heat and is therefore an excellent choice for thermosetting resins and marker boards. This type of plastic is also found in certain medicines and is a fire retardant, although its main use is in manufacturing thermoplastic resins.
The disadvantages of melamine molten marker boards are mainly its low price and the fact that they do not require a magnetic board. However, they do have their downsides, as they are not magnetic and the dry-erase markers will wear away the plastic film. As a result, they are not suitable for schools and are not as durable as porcelain boards. Therefore, it is necessary to clean melamine boards properly with a dry-erase board cleaner to ensure its longevity.
Despite the disadvantages of melamine, it is important to remember that this chemical has the ability to migrate from surfaces into food, which means that it can be accidentally consumed. Various tests conducted by the Food and Drug Administration have shown that melamine can migrate from melamine-infused plates to food. However, this effect is minimal and is estimated to be approximately 250 times less than the toxic level. In addition, melamine whiteboards require regular cleaning and should be replaced once they show signs of wear and tear.
Mounting hardware is required to hang acrylic sheets. It's important to pre-drill holes in the wall before mounting the whiteboard. The mounting hardware comes with a main mounting piece that screws into the wall. The acrylic sheet and washer must fit well to secure the board. After installation, you'll want to clean the board with a paper towel or rubbing alcohol. Then, place the board where it will be seen by everyone.
The material of an acrylic molten marker board is composed of strengthened glass. The material exhibits optical properties, making it suitable for use as a writeable erasable marker board. The haze transmittance ratio is less than 50 percent, and the material thickness is not more than 2 mm. Further, these boards are scuff-resistant, making them the perfect option for classrooms. The following are some of the main benefits of using these boards:
The acrylic sheet can be purchased in dozens of standard colors. The acrylic sheets most commonly sold by Rohm & Haas color numbers are used in plastic histology and electron microscopy. They are also used in tanning beds to separate the occupant from the tanning bulbs. Acrylic is a thermoplastic material that is recyclable and withstands high heat levels. These properties also make acrylic a popular choice for many industries.
The glass that is used in writeable erasable marker boards is made of alkali-aluminosilicate glass. This glass contains a high concentration of SiO2, with the remaining weight consisting of B2O3 and CaO. Hence, the acrylic glass board is both a sound-dampening and a whiteboard device. It is also an architectural panel that can help dampen noise levels.
Reflekt high-gloss acrylic
Reflekt high-glost acrylic molten marker boards by Premier EuroCase are both visually stunning and extremely durable. Made with scratch and stain-resistant acrylic on top of premium MDF core, these boards are durable and chemically-resistant. Additionally, they are laminated in a Class-100 cleanroom and have low surface variance, making them the perfect choice for interior vertical surfaces.
Acrylic is a versatile, lightweight, scratch-resistant material that is often used in creative arts and crafts projects. The material is more affordable than glass, but it retains the same level of clarity. Its sleek appearance makes it a popular choice for many different purposes. While it's not as durable as glass, it's easier to craft. For example, you can mold and cut intricate sculptures out of acrylic. You can also personalize your acrylic awards with rotary engraving, screen printing, or UV printing.
Forner high-gloss acrylic boards feature unique surface features, including an amazing mirror reflection. In addition to the gloss effect, the material also features excellent chemical and scratch resistance, as well as increased resistance to ultraviolet radiation. Forner high-gloss acrylic boards come in 23 trend colours and are available ex-stock. The high-gloss finish gives a metallic effect and is suitable for a wide range of projects.