Single layer coatings were prepared with poly(methyl methacrylate)/polystyrene nanoparticles blend by spin-coating, demonstrating excellent antireflection performance after selective removal of polystyrene particles. The thickness, refractive indices and surface roughness of the coatings, which significantly affect their optical performance, can be modulated by the coating conditions. The particle size can be well controlled by the operational conditions for the particle synthesis. The surface microscopic roughness of the coating strongly affects its light transmittance and the dimensionless parameter, roughness/wavelength ratio, dominates the deviation of the real transmittance from the theoretically predicted transmittance. By optimizing the reaction and the film preparation conditions, the transmittance of antireflection coatings can be up to 99.17% in the visible light range. Compared with work previously reported in the literature, the transmittance in the visible light range can be significantly improved via surface roughness modification, which was generally a problem, especially at the short wavelength region. (C) 2013 Elsevier B.V. All rights reserved.

The invention discloses a manufacture method for a colored reflective product. The manufacture method comprises the following steps of: firstly, carrying out bead planting by heat pressing on high polymer coiled materials to form a high polymer bead planting film; secondly, painting resin on the high polymer bead planting film to form a transmission film after consolidation; thirdly, carrying out vacuum evaporating and plating with a film coating molecular compound on the transmission film to form a transmission reflective film; and finally compounding the transmission reflective film onto a carrier with an adhesive mixed with a toner, and obtaining a product after the high polymer coiled materials are stripped. The manufacture method has the beneficial effects that firstly the fidelity and the light transmission of a colored carrier can be guaranteed, and then visible safety is provided for a user according to a higher counter reflection coefficient.

Preparation methods for hollow/porous microspheres and mechanism of pore formation are reviewed.The first part of this review is focused on the preparation of hollow microspheres(mainly by template method) while the second part is concentrated on porous microspheres(mainly by seed-swelling method and porogen method).The characteristics resulting from the different methods may determine their applications and often several methods are combined to be used for ideal properties.The advantages and disadvantages for each method involved are also analyzed.Meanwhile,existing problems and processing choice in preparation of hollow/porous microspheres are dicussed.

Poly(methyl methacrylate) nanoparticles are synthesized via differential microemulsion polymerization, where the monomers in the reaction system are kept at very low concentrations by continuous differential addition. The effects of various reaction conditions, such as initiator, surfactants, reaction temperature and monomer loadings, on the particle size and molecular weight have been investigated. The effects of initiator and reaction temperature on latex particle numbers and polymer chain numbers within the particles were also investigated. It was observed that the dependence of particle size on reaction temperature and initiator concentration was non-monotonic. The optimized conditions were screened to prepare nanoparticles with the smallest size.

This article reviews the research progress in the area of antireflection coatings.The effectiveness in the antireflection of coatings is elaborated qualitatively and quantitatively with respect to various factors,such as the reflective index and thickness of the antireflection coatings as well as multiple layer coatings.The fabrication techniques of polymer-based antireflection coatings are especially addressed,and the perspective in terms of the market and future development in this field is also discussed.

The definition and mechanism of stress whitening in polymer materials were discussed and the factors that affected the stress whitening were highlighted.The emphasis of this paper was on reviewing the experimental methods for characterization,elimination,and healing of stress whitening.An outlook of the future research on the anti-stress whitening property in this area was also discussed.

The utility model provides a highly bright light reflecting cloth, which belongs to the technical field of light reflecting materials. In the utility model, the technical problem of poor environmental friendliness performance existing in the traditional highly bright light reflecting cloth is solved. The highly bright light reflecting cloth comprises a fabric layer, wherein a light reflecting component layer is arranged on the fabric layer, and the fabric layer and the light reflecting component layer are bonded together through a formaldehyde-free resin layer. The utility model has the advantages of high environmental friendliness performance, is safer to use, and the like.