Horiba, Ltd. · TSE:6856

Horiba — Technical Presentation (June 2022)

20 slides from Horiba's technical presentation, Jun 23, 2022

Slide 1: A New Spin on Particle Analysis: Introducing Centrifugal Sedimentation Centrifuge
A New Spin on Particle Analysis: Introducing Centrifugal Sedimentation Centrifuge Dr. Michael C. Pohl & Carl Lundstedt June 23, 2022 © 2022 HORIBA, Ltd. All rights reserved.
Slide 2: Stokes' Law Requirements
Stokes’ Law Requirements • Particles must be in a Laminar Flow condition • Can never measure very large particles due to Turbulent Flow • Particles must be able to “block” the radiation source • Particles must be adequately separated to avoid hindered settling • Settling velocity must exceed the Bro
Slide 4: Stokes Law – Sizing by sedimentation speed
Stokes Law – Sizing by sedimentation speed Symbol Definition Particle size distribution (area D(t) based) 𝑥 18η0 ln 𝑥2 /1000 η0 Dispersion medium viscosity 𝐷 𝑡 = ( 1 (0 ≤ 𝑡 ≤ 𝑡 ′ ) Distance from center of rotor to 1 23 1 x2 ρ − ρ0 α 𝑡 + ω0αt2 + ω02𝑡 detection point 3 3 Distance from center…
Slide 5: Beer's Law relates absorbance to concentration
Beer’s Law relates absorbance to concentration Symbol Definition Abs(t) Absorbance T Transmittance 𝐴𝑏𝑠 𝑡 = −𝑙𝑜𝑔𝑇 Intensity of light transmitted Is(t) through sample cell Intensity of light transmitted Ir(t) 𝐼𝑠 𝑡 through reference cell 𝐴𝑏𝑠 𝑡 = −𝑙𝑜𝑔 𝐼𝑟 𝑡 𝜀 Molar absorption…
Slide 6: Stokes' Law Challenges
Stokes’ Law Challenges • Materials of different density in the same sample • Small materials exhibiting Brownian Motion • Various sources of hindered settling • Slow measurement for gravity settling • Cell movement in the case of accelerated measurements • Non-absorbing particles in the case of X-ra
Slide 8: Centrifuge Sedimentation Operational Procedures
Centrifuge Sedimentation Operational Procedures • It is a first principle measurement method • Measure time and light intensity • Simple data is required to be input • Liquid Density, Liquid Viscosity, and Particle Density • Data is often easy to find • CRC Handbook or other reference source • Param
Slide 9: CN-300 Operational Improvements
CN-300 Operational Improvements • Cooling to stabilize the fluid temperature • Higher speeds to measure smaller particles • Gradient Centrifugal speeds for measuring broad distributions • Combined Homogeneous and Line Start measurements • Quiet design for low noise, even at high speeds • Versatile d
Slide 16: Mixture of polystyrene latex standards
Mixture of 5 polystyrene latex standards • 100nm +/- 4nm • 152nm +/- 5nm • 496nm +/- 8nm • 702nm +/- 6nm • 1.036um +/- .012um © 2022 HORIBA, Ltd. All rights reserved. 16
Slide 19: CN-300 Fuso Summary
CN-300 Fuso Summary CN-300 Results Unit PL-1 PL-3 PL-7 PL-10H Median Diameter nm 12.2 36.4 118.3 229.8 Slightly opaque Slightly opaque Milky Milky © 2022 HORIBA, Ltd. All rights reserved. 19

HORIBA — Technical Presentation (June 2022) on 6ix

Horiba — Technical Presentation (June 2022)

Slide 1: A New Spin on Particle Analysis: Introducing Centrifugal Sedimentation Centrifuge

Slide 2: Stokes' Law Requirements

Slide 3: Determining particle size from settling velocity

Slide 4: Stokes Law – Sizing by sedimentation speed

Slide 5: Beer's Law relates absorbance to concentration

Slide 6: Stokes' Law Challenges

Slide 7: Advanced temperature control is essential for accurate measurements

Slide 8: Centrifuge Sedimentation Operational Procedures

Slide 9: CN-300 Operational Improvements

Slide 10: Homogeneous method for low concentration samples

Slide 11: Line-start method for high concentration, high resolution

Slide 12: Gradient acceleration allows for wide range analysis

Slide 13: Measurement principal diagram

Slide 14: Repeatability of silica

Slide 15: Wide size range analysis of carbon nanotubes

Slide 16: Mixture of polystyrene latex standards

Slide 17: Measuring mixed high concentration battery materials

Slide 18: Fuso ultra high purity colloidal silica

Slide 19: CN-300 Fuso Summary

Slide 20: © 2022 HORIBA, Ltd. All rights reserved.