Entering the 21st century, the picture tube, the core component of the display device, is gradually disappearing, and is being replaced by a more advanced and lightweight backlight panel.
The light guide plate, as the core component of the backlight plate, is mainly made of optical grade Poly(methyl methacrylate) resin with the best light transmittance and weather resistance.
At present, domestic companies that can produce high-quality Poly(methyl methacrylate) resin include Taiwan’s Chi Mei, South Korea’s LG, Japan’s Mitsubishi, etc. With the development of domestic LCD manufacturing technology, PMMA has a huge consumption potential in this industry.
Plastic optical fiber (POF) is made of highly transparent polymers such as polystyrene (PS), polymethyl methacrylate (PMMA), polycarbonate (PC) as the core material, and PMMA, fluoroplastics, etc. as the skin material. Fiber-like (optical fibers).
Different materials have different light attenuation properties and temperature application ranges. Plastic optical fiber can not only be used in the last 100 to 1000 meters of the access network, but also in various vehicles, planes, and other vehicles. It is an excellent short-distance data transmission medium.
With the popularization of the Internet, plastic optical fibers have gained huge development space. The most important one is PMMA plastic optical fibers, which have the advantages of large core diameter, soft texture, light weight, low cost, and large bandwidth.
From the middle and late twentieth century to the present, polymer optical fibers have been developed rapidly. In 1968, DuPont developed PMMA step-type plastic optical fiber with PMMA resin as raw material, but the loss was as high as 1000dB/km. In 1983, NTT company improved the PMMA resin and produced a fully deuterated Poly(methyl methacrylate) plastic optical fiber, the loss was significantly reduced, and the loss at the wavelength of 650nm was reduced to 20dB/km. In recent years, Y. Koike et al. used MMA and fluoroacrylate (TFPMA) as the main raw materials to make GIPOF (graded index polymer optical fiber), which has a large bandwidth (>1GHz.km) and low attenuation (688nm, 56dB). /km), mainly used for short-distance communication.
The Institute of Chemistry, Chinese Academy of Sciences has successfully developed a graded optical fiber technology. The technical indicators for preparing a PMMA fiber with a controllable refractive index gradient distribution are: under the conditions of -40 ~ 500 ℃, the optical loss is 140 ~ 240dB/km, and the bandwidth is 0.6 ~ 2.3GHz, the numerical aperture is 0.15～0.45, and the length of a single fiber can reach 600 meters.
With the vigorous development of the domestic mobile phone manufacturing industry, domestic mobile phone brands, such as: Xiaomi, Meizu, Huawei, ZTE and other brands are selling well, and optical materials based on PMMA resin are also rapidly emerging.
However, the domestic PMMA sheet used to manufacture mobile phone lenses is completely dependent on imports, and the production technology is monopolized by foreign products, resulting in high mobile phone costs.
Therefore, in order to get rid of imports and reduce production costs, it is necessary for domestic manufacturers or scientific research institutes to develop such sheet technology.
In recent years, with the rise of the IT industry, the research on organic electroluminescent materials has become a hot spot in the field of electroluminescence. Because PMMA has good photoelectric inertness, good film-forming property and relatively high thermal change temperature, Poly(methyl methacrylate) resin has become an important polymer material in electroluminescence technology research. Kido uses dye-molecular-level doped polymers as light-emitting layers. Using spray coating technology and doping with different fluorescent dyes, the luminescent color can be changed from green to red.
The development of modern medicine has put forward complex and strict multi-functional requirements for the performance of materials. Metal materials and inorganic materials are difficult to meet. However, synthetic polymer materials have very similar chemical structures to natural polymers as living organisms. Therefore, synthetic polymers can be synthesized. Medical functional polymer materials.
PMMA resin is a non-toxic thermoplastic resin with stable physical and chemical properties and excellent biocompatibility. It has great application value and market potential in the field of medical materials.
With the improvement of the performance of PMMA resin, in the high-end market, Poly(methyl methacrylate) resin has gradually penetrated into the medical field. In the middle of the 20th century, the United States used PMMA resin to make artificial bones.
With the development of medical technology, researchers have creatively applied PMMA resin in immunology, mainly using PMMA as the wall material of nanocapsule vaccines; as a nanocapsule wall material, Poly(methyl methacrylate) resin is not only safe and efficient At the same time, it can prolong the residence time of the drug in the body.
