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Polyacrylic Ester Particles【AFX Series】

Overview

Spherical particles composed of cross-linked polyacrylic ester.
The softest particles within the "TECHPOLYMER" product line-up.
The products are supplied in powder form.

Composition: Cross-linked Polyacrylic Ester
Structure: Spherical
Particle Size Distribution: Standard Type
True Density: 1.1g/cm3
Refractive Index: 1.49
3% Thermal Decomposition Temperature: 230-250℃
Solvent Resistance: Standard

Application

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Particle Size Distribution

Standard type

The following is an example of the particle size distribution for the subjected "TECHPOLYMER" series.

Softness adjustment

Our wide range of products with different compositions offers particles with various softness. The balance between softness and restoration rate effectively absorbs the abrasion force and improves the scratch resistance of the coating. The particles also add a soft feel to the coating surface.

Comparisons of compressive strength for 10% deformity and recovery rate of each series

Relative Compressive Strength^※

Relative Recovery rate

*Comparisons of compressive strength for 10% deformity with the MBX series (MBX series benchmarked as 1.0)

Grades

Grade

Average Particle Size (µm)

AFX-8

AFX-15

AFX-30

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Particle Size Control(Micron, Submicron)
Particle Shape Configuration(Hollow structure, Porus structure, etc.)
Composition Variation(PET, Biodegraable, Biomasuu)
Particle Characteristic Control(Refractive index, Softness)
Stability Improvement(Solvent resitance, UV resistance)
Functionality Improvement(Thermal Conductivity, Functional Group Addition)
Other Technologies
For Cosmetics

Soft Particle Series

Our wide range of products with different compositions offers particles with various softness. The particles increase scratch resistance and adds texture to the coating surface.

Cosmetic ingredients

Grades with residual monomers removed by advance purification processes are available for cosmetic applications. The spherical shape of the “TECHPOLYMER” can improve spreadability of foundations, create a soft-focus effect, and change the texture. Porous particles that can be used as adsorbents, and elastic particles that adds soft feel are also available.

Particle Size Control

“TECHPOLYMER” is available in the size from submicron, micron, and up to millimeter* sizes. The wide product range offers the most suitable size for your application.
* The millimeter sizes are available as a separate product called the “DUOMASTER”.

Particle Shape Configuration

We have successfully established shape configuration technology which enables the control of interior and exterior structure of the particles to develop non-spherical particles, hollow, and porous particles. Non-spherical particles are expected to obtain special optical properties from the special shapes in applications. The porous and hollow particles improve properties such as light diffusion, low permittivity, absorption. These particles are lower specific density according to the air voids within the structure.

Hollow Structure

Porous Structure

Highly Porous Particles

Biconvex Lenticular

Hemispherical

Monodispersed Type

Other Non-Spherical

Composition Variation

Sekisui Kasei has developed various new “TECHPOLYMER” grades that offer new functions and features. We can also develop custom grades for Customer’s special needs. Please contact us to discuss your applications.

Particle Characteristic Control

“TECHPOLYMER” offers a wide range of grades with the properties controlled to suit various applications. For display applications (liquid crystal), many grades are offered by adjusting the refractive index of the particles in order to obtain the desired light diffusion effect. For paints and coatings, various grades are being used in which the hardness of the particles has been adjusted to improve the texture of the coating.

Stability Improvement

“TECHPOLYMER” grades to withstand harsher conditions with higher resistance are available.
Contributes to higher productivity and quality stability of the final product enabling a wider choice of material to use.

Functionality Improvement

Developing high functionality particles by compositing “TECHPOLYMER” with other functional materials.
Other than the functionality of the material, the following are expected from composited particles.

Improvement in handling
Improvement of dispersibility in the matrix
Reduction in the amount of additives

In addition, particles with the characteristics of both the “TECHPOLYMER” and the functional material can be created such as the following:

Anti-blocking property (“TECHPOLYMER”) and conductivity (conductive material)
Light diffusion (“TECHPOLYMER”) and wavelength control (wavelength control material)
Impact resistance (“TECHPOLYMER”) and conductivity (conductive material)

Other Technologies

Capable of customizing our products with various technologies to offer our customers more solutions for their product development.
The following are few examples of our technologies.
Other customizations maybe available, please do not hesitate to contact us.

For Cosmetics

For cosmetic applications, we offer grades that have been highly purified to remove residual monomers. Capable of customizing our products with various technologies to meet your needs. Please contact us.

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