Cases

Main classification Common boards include: transparent board, dyed transparent board, milk white board, color board; Special boards include: bathroom board, cloud board, mirror board, cloth board, hollow board, impact board, flame retardant board, super wear-resistant board, surface pattern board, frosted board, pearl board, metal effect board, etc. Different performance, different colors and visual effects to meet the ever-changing requirements. 1. Acrylic panels are divided into cast panels and extruded panels according to the production process. According to the transmittance, they can be divided into transparent panels, semi-transparent panels (including dyed transparent panels), and color panels (including black and white and color panels); according to performance Impact board, anti-ultraviolet board, ordinary board and special board such as high impact board, flame retardant board, frosted board, metal effect board, high wear-resistant board, light guide board, etc. A: Casting plate: high molecular weight, excellent rigidity, strength and excellent chemical resistance. Therefore, it is more suitable for processing large-size identification plaques, and the time in the softening process is slightly longer. This kind of board is characterized by small batch processing, incomparable flexibility in color system and surface texture effect, and complete product specifications, which can be used for various special purposes. B: Extruded plate: Compared with the cast plate, the extruded plate has a lower molecular weight, slightly weaker mechanical properties, and higher flexibility. However, this feature is conducive to bending and hot forming processing, and the softening time is shorter. When dealing with large-size plates, it is beneficial to various rapid vacuum forming. At the same time, the thickness tolerance of the extruded plate is smaller than that of the cast plate. Because the extruded plates are mass-produced and automated, the colors and specifications are inconvenient to adjust, so the variety of product specifications is subject to certain restrictions. 2. There is another kind of acrylic recycled board, which uses recycled acrylic scrap, which is thermally degraded to obtain recycled MMA (methyl methacrylate) monomer, which is then obtained by chemical polymerization. After a rigorous process, the pure MMA monomer can be re-obtained, and there is no difference in quality from the newly synthesized monomer. However, the purity of the degraded monomer produced is not high, and the quality and performance of the sheet after forming are poor. Summary: The extruded plate uses granular raw materials, which are extruded after being dissolved at high temperature, while the casting plate is directly casted with MMA monomer (liquid). Although the extruded plate is relatively flat and smooth in appearance, it is because it is formed when the granular raw material is formed. To complete the polymerization. When processed into plates, its structure and performance are weak, and it is not suitable as a material for outdoor marking products. It is only suitable for indoor products such as crystal letters or product brackets. In addition, since most of the extruded panels do not have the function of UV protection, their outdoor use life is not the same as that of the cast panels. The color will gradually fade and it is easy to become brittle until it breaks. The casting plate is to complete the structural polymerization during the processing of the plate, during which the ultraviolet absorber is added, which has extremely high strength and UV function, and the outdoor service life is more than 5 years or even 10 years. During the use, the color is always bright as new.

The light guide plate uses optical grade acrylic sheet, and then uses high-tech materials with extremely high reflectivity and non-light absorption, and UV screen printing technology is used to print the light guide dots on the bottom surface of the optical grade acrylic sheet.   What is the material of the acrylic light guide plate: The main material of acrylic light guide plate is optical acrylic plate. Acrylic light guide plates currently produced differ in quality due to the different processes of different manufacturers. In particular, although recycled plates are cheap, they are easy to yellow and have poor transmittance. Acrylic light guide plates should be used to produce acrylic light guide plates that are not easy to yellow and transmit light. Transparent board with a rate of 92%-93% or more. At present, the light guide plates on the market are made of two kinds of materials: acrylic sheet and PC sheet. However, the most common ones are light guide plates made of acrylic board materials, and there are fewer light guide plates made of PC board materials, and they must be customized, not every manufacturer that makes light guide plates.   How does the acrylic light guide plate work? The light guide plate uses optical grade acrylic sheet, and then uses high-tech materials with extremely high reflectivity and non-light absorption, and UV screen printing technology is used to print the light guide dots on the bottom surface of the optical grade acrylic sheet. Use optical grade acrylic sheet to absorb the light emitted from the lamp and stay on the surface of the optical grade acrylic sheet. When the light hits each light guide point, the reflected light will diffuse in all angles, and then destroy the reflection conditions. The front side of the acrylic light guide plate Projected. Through a variety of dense and different light guide points, the acrylic light guide plate can emit light evenly. The purpose of the reflective sheet is to reflect the light exposed on the bottom surface back into the acrylic light guide plate to improve the efficiency of light use.   There are two main methods for making acrylic light guide plates: Screen printing and non-printing. The screen-printed light guide plate has low investment, no need to invest in equipment, can be operated manually, low cost, high production efficiency, and the technical process is very easy to master. Non-printed light guide plates, such as laser dots, require large investment, require professional equipment, high production costs, and low production efficiency.

Acrylic screen printing is short for screen printing. The screen is a printing plate made of a silk fabric synthetic fiber fabric or a metal wire mesh stretched on the screen frame by hand engraving paint film or photochemical plate making. In the process of silk screen printing, acrylic sheet cracks are often encountered, so how to avoid it? Possible problem areas One of the cracks in the screen printed acrylic sheet may be a problem with the sheet, and the other may be a problem with the ink used in the screen printing. If the crack is caused by the poor quality of the plate, we can find a piece of leftover material that has been screen-printed before and does not appear to be cracked. Use the same ink system to screen. If there is no crack, then the quality of the plate is not good. It may also be that the sheet has too much moisture. You can try to bake the acrylic sheet at 60 degrees for 30 minutes and then print it on the silk screen. If cracks still appear, it may be the cause of the ink.   Different processing methods of casting plate and extruded plate in silk printing Acrylic sheets can be divided into casting sheets and extruded sheets in terms of technology. These two kinds of sheets have different precautions when screen printing. The following points must be paid attention to in the extruded plate screen printing process Laser cutting can not wipe 718 and other solvent chemicals, and the production process of the specification sheet must be changed, such as cutting directly or cutting after printing; 1. Different brands of chemical products and inks may have an impact, and testing before mass production can avoid such situations; 2. The printed product should be placed in a ventilated or forced ventilation environment to make the ink dry as soon as possible. Casting plate silk screen burst Under normal circumstances, this phenomenon will not occur in the cast plate, but it may happen to the screen printing mirror oil or gold oil and other toner powder inks. In principle, the screen printing plate cannot be used for fire polishing. After the fire polishing, the plate uses solvent chemicals Wiping may crack; In case of high cost of thick plate cracking and large scrap loss, you can try to use industrial air ducts to lightly blow the plate surface to repair. Strictly follow the operation process to avoid the phenomenon of screen printing cracking of the cast plate.

The main difference between acrylic and plastic is that they are materials composed of different substances: 1. Acrylic is plexiglass. Acrylic sheet can be divided into casting type and extrusion type according to the production process. The performance of the casting type is better than that of the extrusion type, and the price is more expensive. The casting type is mainly used for carving , Decoration, handicraft production, extrusion type is usually used for the production of advertising signs, light boxes, etc. 2. Plastic is a high molecular compound polymerized by addition polymerization or polycondensation reaction with monomer as raw material. It is commonly known as plastic or resin. The composition and shape can be changed freely. It is composed of synthetic resin and filler, plasticizer, stabilizer, It is composed of additives such as lubricants and pigments. The main component of plastic is resin. The term resin was originally named for the lipids secreted by plants and animals, such as rosin, shellac, etc. Resin refers to a polymer compound that has not been mixed with various additives. The resin accounts for about 40%-100% of the total weight of the plastic. The basic properties of plastics are mainly determined by the nature of the resin, but additives also play an important role. Some plastics are basically composed of synthetic resins, with no or little additives, such as plexiglass and polystyrene.

Acrylic itself is a flammable polymer composite material, so flame retardants are added during polymerization to prevent it from burning quickly, so compared with ordinary acrylic materials, it is a little harder to burn, and it will not burn so quickly. The burning is complete. Even after burning, it will quickly extinguish, while ordinary acrylic materials will not self-extinguish, but will only burn out quickly. In this way, when we decorate, we need to consider fire-retardant acrylic products to decorate our home, which will be safer. What should be paid attention to when using acrylic 1. Acrylic board cannot be stored in the same place with other organic solvents, let alone contact with organic solvents 2. During transportation, the surface protective film or protective paper cannot be scratched 3. Cannot be used in an environment where the temperature exceeds 85℃ 4. When cleaning the acrylic sheet, only 1% soapy water is required. Use a soft cotton cloth dipped in soapy water. Do not use hard objects or dry wipes, otherwise the surface will be easily scratched. 5. Acrylic sheet has a large thermal expansion coefficient, and the expansion gap should be considered due to temperature changes

With the development of materials science, more and more new materials have been available to human beings. At the forefront of materials science, graphene and carbon fiber are the world. Before carbon fiber is popularized, the most amazing material we can usually see is acrylic sheet.     In the construction industry, automobile industry, instrumentation and other industries, acrylic sheet has a huge application prospect. In our eyes, acrylic sheet looks like glass from a distance. If you touch it, it feels like plastic. This kind of acrylic sheet looks like the "hybrid product" of glass and plastic. What is it?     Acrylic is not a product of the 21st century. At the end of the 19th century, scientists made this chemical material, and it was not until the 1920s that acrylic sheet came off the production line. At the beginning of the acrylic sheet but high-grade goods, only used to make aircraft. With the improvement of modern technology, the production cost of acrylic sheet is greatly reduced, and it has become a civilian material. We give acrylic this material an image name, that is "plexiglass". It has the same transparent texture as glass, but also has the toughness of plastic. Acrylic sheet is actually a kind of material composed of acrylic small particles and resin. The properties of acrylic products are different with different materials. There are also acrylic cotton, acrylic yarn and other materials.   The transparency of acrylic board is very popular. It has the transparency of glass, but its strength is much higher than that of glass. Acrylic sheet is very durable, wear-resistant, anti falling and shockproof. But compared with glass, acrylic sheet also has a disadvantage, that is, the melting point is very low, it will melt at 160 ℃. But this also makes acrylic materials have higher plasticity, which is very suitable for making handicrafts. From the material division, acrylic sheet should be a kind of plastic, just looks like glass plastic. What do you think?