With the advancement of global plastic restrictions, biodegradable materials have become an important direction for solving white pollution. Starch has become a research hotspot due to its renewable, low-cost, and fully degradable characteristics. However, natural starch (NS) has problems such as strong intermolecular hydrogen bonds, high hydrophilicity, and poor processing performance. By acetylation modification, the polarity of starch hydroxyl groups can be disrupted, crystallinity can be reduced, hydrophobicity and thermoplasticity can be improved. Thermoplastic acetylated starch (TPSA) can be compounded with materials such as polylactic acid (PLA) and polyvinyl alcohol (PVA) to prepare high-performance films, which are widely used in fields such as food packaging and agricultural coverage.

In the precise world of optical instruments, the direction of each beam of light, every reflection and transmission, are related to the performance of the instrument. Spectrometers, interferometers, and other key equipment in the field of optics have extremely high requirements for the performance of optical components.

Recently, Apple's major suppliers have successfully overcome the challenge of AR glass nano coating technology, reducing the glass reflectivity to below 0.5%, bringing significant breakthroughs to the improvement of display effects for Apple MR (mixed reality) devices. This achievement is not only expected to significantly improve user experience, but also to drive technological upgrades in the entire MR industry.

As mobile phone screens evolve from 720P to 2K/4K resolution, breaking through from 60Hz refresh rate to 144Hz high refresh rate, iterating from straight face screens to foldable and surround screens, consumers seem to have become accustomed to the "arms race" of manufacturers in screen parameters.

Transparent components often face critical visibility issues such as reflection and atomization formation. Anti reflection strategies have been developed to improve transparency and reduce reflection.

Due to its photocatalytic self-cleaning properties, titanium dioxide modified anti reflective coatings (ARCs) on photovoltaic glass have become a research hotspot. However, balancing the optical performance, photocatalytic performance, weather resistance, and process complexity of composite nano coatings remains a challenge.

Optical coating technology is a core technology in the field of optics. It precisely controls the reflection, transmission, and interference behavior of light at the interface of the medium, endowing optical components such as lenses with "superpowers" - from improving imaging quality to protecting component life. Its applications cover many fields such as consumer electronics, aerospace, medical equipment, etc. This article will analyze the mysteries of optical coating from multiple aspects, including basic concepts, the core role of optical coating, typical coating processes, and introductions to well-known coating equipment manufacturers.

Polarizers, as key "optical switches" for liquid crystal displays (LCDs) and even some OLEDs, directly determine the brightness, contrast, color, and lifespan of the screen based on their performance. This seemingly simple "sandwich" structure (TAC protective layer/PVA polarizing layer/TAC protective layer/functional adhesive/PET release film) actually embodies cutting-edge technologies such as polymer physics, precision coating, optical design, and chemical treatment.

Recently, led by Guilin Electric Science Research Institute Co., Ltd. and with the deep participation of Jiangsu Xinyi Film Co., Ltd., the world's first BOPLA film dedicated production line has completed multifunctional biaxial tensile testing, main assembly, and other work. It is about to enter the joint debugging and testing stage. During the testing period, the BOPLA film produced by the equipment meets EU and national standards in terms of biodegradability, and has been audited by authoritative certification and testing institutions at home and abroad.

On the track of "high-temperature luminescence" in flexible photoluminescent materials, the team led by Zhang Kun from Xi'an Engineering University has published their latest work in Advanced Optical Materials, pushing the temperature resistance limit of flexible visible luminescence to 375 ℃, and for the first time, using X-ray full scattering measurement to capture high-definition close-up of the microstructure of amorphous ceramic nanofibers through the "flexibility+high-temperature luminescence" mechanism.

In this study, an economical and efficient sol gel method was proposed to prepare nano porous silicon dioxide (SiO ₂) films with both high transmittance and super hydrophobicity to improve the efficiency of solar cells.

Optical thin films are ubiquitous in modern technology, from mobile phone lenses to precision lasers, from high-definition displays to high-efficiency solar cells. Their performance directly affects the performance of the final product. The key to determining the quality and production efficiency of optical thin films lies in the core equipment used in their production process. Today, let's talk about the core technologies and future development of these key devices.