Polycarbonate composites: Effect of filler type and melt‐blending process on the light diffusion properties

Abstract

Transmittance and haze are key properties of light diffusion materials. Hybrid light diffusion agents (LDAs) and meltblending process are introduced to study optical performance and mechanical properties of polycarbonate (PC) light diffusion materials. Optical properties of PC composites prepared by two-step melt-blending process has better repeatability compared to one-step method due to the better dispersion state of hybrid fillers in PC matrix. The hybrid fillers silicate microspheres (SMS)/nano titania particles (nTiO 2 ) are more suitable for PC matrix compared to crosslinked poly(methyl methacrylate) microspheres (PMMA)/nTiO 2 , for the reason that the PC/SMS/nTiO 2 composites exhibit favorable optical performance and almost no deterioration of mechanical properties. The good balance between high transmittance and substantial haze can be achieved when the SMS/nTiO 2 content is 1.2 wt% (the transmittance and haze are 60.97% and 88.73%, respectively). POLYM. ENG. SCI., 57:374-380, 2017.

Significant Enhancement of Thermal Conductivity in Nanofibrillated Cellulose Films with Low Mass Fraction of Nanodiamond

“…Similarly, the light transmittance of NFC/ND hybrid films at 550 nm wavelength also decreased with the increasing ND content (Figure d). This is due to the introduction of the ND which will create light scattering when the light transmits through these films, and the increasing ND content results in more severe light scattering. , In addition, the CND-05 hybrid film has 65.29% transmittance at 550 nm wavelength, which reached a high transparency level close to that of CND-0. In addition, the NFC/ND hybrid films show high optical transparency, which exhibited multifunction compared to our previous work .…”

Insights into functional polymer-based organic-inorganic nanocomposites as leather finishes

“…Combining nanoparticles with polymer matrix to form nanocomposites has been explored for decades, while blending is recognized as the most facile and direct approach [35]. Blending can be accomplished by several ways, including mechanical blending, melt blending, solution blending or emulsion blending, which mainly depends on the nature of polymer [36][37][38]. Nowadays, blending method has been extensively employed in the industry by relatively wider acceptance of inorganic particles with various shapes, sizes, or characters [35].…”

Preparation of PP/PC light‐diffusing materials with UV‐shielding property

“…They are able to convert spot and line light sources into plane light sources without affecting the brightness, so as to achieve uniform illumination and better display. [1][2][3] Qualified LDMs ought to be of high haze combined with high optical transmittance, in order to reach high luminous efficiency. However, the transmittance and haze generally have mutual influence on each other.…”

“…Light‐diffusing materials (LDMs) can permit incident light to pass through and scatter it simultaneously. They are able to convert spot and line light sources into plane light sources without affecting the brightness, so as to achieve uniform illumination and better display 1–3 . Qualified LDMs ought to be of high haze combined with high optical transmittance, in order to reach high luminous efficiency.…”