The lecture will start with a fascinating overview of aerosol technology from ancient China and the bible printing of Gutenberg to the current manufacture of commodities. Recent advances in particle formation and growth through discrete element modeling and molecular dynamics allow now optimal process design, away from the Edisonian approaches of the past. In specific, the rapid attainment of asymptotic agglomerate structure and self-preserving size distribution by coagulation greatly facilitate process design for material synthesis. This leads to scalable synthesis of sophisticated nanoparticles with controlled composition, size and morphology by flame spray pyrolysis putting new high value products (e.g. nanosilver and carbon-coated Co nanoparticles) in the market already while several promising ones are emerging such as single atom catalysts and chemoresistive sensors for breath analysis. The latter is highlighted for highly selective monitoring of acetone, NH₃, isoprene and even formaldehyde that are tracers of body fat burning, end stage renal disease, cholesterol and indoor air pollution, respectively, while sensor arrays are assembled to sniff–out earthquake victims.

Graphene has excellent physical and mechanical properties so that the use of graphene as reinforcement for structural composites is very attractive to produce exceptional mechanical/functional properties and unique physical/chemical characteristics. Graphene/metal oxide composites have received great attention because of their synergetic effects possibly provided by the combination of metal oxides and graphene. The preparation of uniformly mixed GO/metal oxide hybrid and the fabrication of its ceramic matrix composites are demonstrated by the use of chemically derived graphene which is the exfoliation of graphene oxide (GO) and subsequent reduction to graphene (rGO). The unique functional properties endowed by graphene to rGO-CMCs such as enhanced electrical conductivity, thermoelectric performance and improved mechanical properties are overviewed.

Sialon phosphors are power luminescent materials composed mainly of familiar elements Si-Al-O-N. These brand-new materials discovered at the beginning of the 21st century are already used commonly for general lighting and high quality full color display. Here, some commercially available phosphors are introduced at the beginning, focusing on green β sialon which has both industrial importance and academic interest. Moreover, forthcoming phosphors applicable for high color rendering lighting or Super Hi-Vision (8K) TV are summarized and typical spectrum control methods are explained using JEM blue phosphor. The contribution of sialon as industrial standard material for optical characterization of power phosphors is also referred finally.

Slurry processes are used for electrode in secondary batteries and fuel cells. It is well known to exhibit characteristic non-Newtonian rheological behavior such as pseudoplastic flow and dilatancy behavior as the concentration of the slurry increases for a major impact on the productivity, quality, and performance of material. Therefore, with the objective of identifying rheological control guidelines for concentrated slurries, the rheological behavior and micro structures of colloidal dispersions are being researched using monodispersed particles.

Concentrated dispersions of monodispersed silica particles exhibited dilatancy behavior with a highly viscous dispersion media. Although the critical shear rate at which dilatancy occurred decreased in accordance with increasing the solvent viscosity and particle size, the shear stress at which dilatancy occurred was defined regardless of the solvent viscosity and particle size. It can be explained by the diffusion-dominant model controlled by Pe (i.e., the ratio between diffusive and shear flows of particles).

Cellulose nanofibers (CNFs) are spotlighted as a new application of cellulose. CNFs are prepared by mechanical downsizing of cellulose material such as a pulp. CNFs have a lot of characteristics for examples high strength, high elastic modulus, low coefficient of thermal expansion, high transparency, and large specific surface area. We have continued R&D of CNFs and accumulated numerous fundamental data for industrial applications of CNFs/water dispersions as additives. CNFs can form networking structure in water. CNFs have unique properties such as high viscosities at low consistencies, characteristic thixotropy behavior by shear forces, high emulsifying and suspending capability, etc. High transparent and highly strengthened film also can be prepared by drying of CNFs. CNFs are applying as thickening agent of the ink of the aqueous ball-point pen with unique rheological properties as above. This ball-point pen is attracting attention as the world’s first application of CNF as a writing instrument.

Because powder coating does not use solvent, it has been recognized to be safe causing no pollution, resource saving by paint recycle , and easy for handling and automation providing high workability, which leads to the expansion of the use of powder coating. As the environmental problems are recognized as global ones, efforts to conserve the global environment are increasingly strengthened on a worldwide scale, and now the environmental problems are those that companies cannot avoid. As seen in the VOC regulations of the painting industry, as a method of reducing organic solvents discharged into the atmosphere, the transition to powder coating, water-based and high-solid paints are searched for. Among them, powder coatings can be recovered and recycled without solvent, so they are promising paints for environmental response. The production volume of powder coatings has declined considerably just after the Lehman shock in 2008, but since then it is steadily increasing coping with the environmental problems. This review discusses the market share and future prospects in powder coating industry with its basic technologies and problems, and the latest technologies, including features and advantages of Wagner products.

In the Paris Agreement and SDGs (Sustainable Development Goals), the goal to establish a sustainable society was adopted. From this background, resin-based composite materials with light weight property have an attention. In particular, the composite materials having light weight property are important for various industrial fields such as information, electricity, transportation, welfare medical, robots, sports and so on. On the other hand, resin materials (plastics) have low functionality and mechanical properties compared to ceramic and metal materials. In the development of composite materials, powder as a filler plays a large role in the improvement of material properties. Therefore, R & D on the improvement of functional and mechanical properties, and formability have been actively carried out. In this paper, the effect of low dimensional filler addition on improvement of functional properties and formability of composite materials will be introduced. In order to improve the functional properties and formability of composite materials, two-dimensional h-BN filler with high aspect ratio was prepared by mechanical powder processing. Addition of the developed h-BN filler led to improvement of the functionality and formability on the composite at low filler loading.

In late years the preference of the meal diversifies, and the market is filled with various kinds of food products. In addition, the safety of the food is demanded from consumers highly. For a production machine, it is necessary to provide a machine in consideration for washing characteristics, check characteristics. Here, I introduce reversely conic model mixer Nauta conical mixer and byte mix handling in us. In addition, I am characterized to these machines through the introduction of the big door of the large-scale inspection door. They put the washing characteristics of the apparatus, check characteristics together and introduce.

Reflecting the revision of the Occupational Safety and Health Act two years ago, the awareness concerning the prevention of occupational accidents and worker protection seems to have further increased. However, when looking at the sites handling the powder, reality is that there are still many harsh sites where dust is scattered. There are many circumstances in which environmental improvement does not work effectively because of the variety of properties of the powder, and the cases showing the demand for further improvement of the environment are increasing. For the purpose to improve the environment this time, the achievement of containment technology matching the powder production site as well as the related equipment will be introduced together with the organizing and understanding of the regulation.

Wet sieve analyzer VIBLETTE^® was developed as a dedicated wet sieve. The technology of particle size analysis is progressing daily, and laser diffraction-scattering method is most popular. However, sieving is still commonly used for quality control because unless the sieve breaks, historically, sieving has been the only way to guarantee the quality of products. We introduce improvement of VBL-F and acquisition of CE marking.

In recent years, the needs of cosmetic products possessing anti-wrinkle effects are rapidly increasing, and the cosmetic products appealing it’s efficacy sell well. It is common technique to possess moisture on skin surface by adsorbing moisturizing ingredients in order to improve fine wrinkle. The hyaluronic acid widely used as moisturizing ingredients in cosmetics is difficult to retain on skin having oil contents for a long time because of its high hydrophilicity. Also hyaluronic acid molecular size is too large comparing interstitial cells, hence the penetration into horny internal parts is not easy.

The PLGA (Poly-Lactide-co-Glycolide Acid) nanoparticle that we developed has DDS (Drug Delivery System) function such as excellent permeability to the stratum corneum and slow release of encapsulated content in the particle. By using this technology, the hyaluronic acid can be easily delivered deep into the stratum corneum. Therefore, it was thought that the moisturizing zone formed by hyaluronic acid is expected to expand not only the surface layer but also the deep layer of the straum corneum which tend to the new moisturizing effect.

In this paper, we introduce the test result of the skin moisturizing effect and anti-wrinkle effect by using PLGA nanoparticles encapsulating hyaluronic acid.

Wet sieve analysis is widely used as certifiable method to quantify an amount of coarse particles. But the operation is very hard work, time consuming operation, and results have a large variation due to the operation of brushing to disperse agglomerates. The previous model, VBL can replace the human operation of wet sieving due to uniform spraying of water to sample, suitable vibration to sieve to break the plugging, etc. The new improved wet sieve analyzer, Viblette model VBL-F (mechanical vibration) and VBL-FU (ultrasonic vibration), can achieve to sieve for strong cohesive powders and earned the CE marking certification, then those models can be global instruments and can release operator from this simple and hard work, and take a good accurate analysis.

The “Layer Check” is a non-contact layer thickness detector newly introduced in the line-up of Hosokawa Wargner’s product. A Variety of thicknesses are required for the powder painting depending upon the kind of products and purposes and it is important to control it constantly in the proper range from the viewpoint of the product quality. Conventionally, the thickness of the painted layer was measured after the solidification of the powder paint by the heating followed by the cooling and the products with too thin or too thick painted layer needed to be disposed or re-painted. However, this Layer Check using the ATO technology has made it possible to measure the layer thickness before the heating and minimize the loss caused by the disposal and re-painting.