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Product Description
Product Introduction
Strontium Titanate (SrTiO₃) is a functional ceramic material with excellent electrical, dielectric, and triboelectric properties, making it a valuable additive in advanced printer toner formulations. In toner applications, SrTiO₃ enhances charge control, image resolution, and printing consistency—especially in high-speed laser printers and photocopiers.
When added to toner particles, SrTiO₃ improves the electrostatic charging characteristics (known as triboelectric charging), enabling more precise control of toner adhesion and transfer during the printing process. This results in sharper images, better gray scale, and reduced background noise. Its high resistivity and stable dielectric behavior support uniform toner distribution and prevent clumping or overcharging, which can degrade print quality.
SrTiO₃ also contributes to improved thermal stability and flowability during fusing, ensuring smooth toner melting and bonding onto paper or film. Thanks to its chemical stability and low toxicity, it is safe to use in office and industrial printing environments.
Our SrTiO₃ powder is engineered for toner-grade use, offering fine particle size, high purity, and excellent dispersion. Surface-treated variants are available to optimize compatibility with polymer resins commonly used in toner systems.
Physical Properties
| Item | Spec | Remark |
| Particle Size Distribution (D50) |
0.2 ~ 30 μm |
Laser Particle Size Analizer |
| Water Content (wt%) |
0.2 ~ 30μm ： < 0.5 |
105℃ × 1Hr |
| Ignition Loss (wt%) |
0.2 ~ 30μm ： < 1.0 |
800℃ × 1Hr |
Chemical Composition
| Product No. | ST-1 Series | ST-2 Series | ST-3 Series |
| SrO/TiO2 ( Mole Ratio) | 1.000±0.01 | 1.000±0.02 | 1.000±0.03 |
| BaO(wt%) | <0.05 | <0.1 | <0.3 |
| Fe2O3 (wt%) | <0.01 | <0.03 | <0.1 |
| K2O+Na2O(wt%) | <0.01 | <0.03 | <0.1 |
| Al2O3 (wt%) | <0.1 | <0.2 | <0.3 |
| SiO2(wt%) | <0.1 | <0.2 | <0.3 |
Product Features
Strontium titanate (SrTiO₃) is a functional material with excellent dielectric properties, optical properties and thermal stability. It is widely used in microelectronic devices, optical materials, energy storage devices and superconducting research. The main features include:
1. High dielectric constant and low loss
SrTiO₃ has a high dielectric constant (εr > 300) and performs well in high-frequency electronic applications.
The low dielectric loss property makes it suitable for high-performance capacitors, microwave devices and RF components.
2. Excellent optical properties
SrTiO₃ has a high refractive index (n ≈ 2.4) and is suitable for optical lenses, lasers and optoelectronic materials.
Its excellent nonlinear optical properties make it suitable for optical modulators, laser frequency doubling and holographic storage.
3. Compatible with high-temperature superconducting applications
SrTiO₃ is an ideal high-temperature superconducting substrate material, commonly used in superconducting films such as yttrium barium copper oxide (YBCO).
It has excellent lattice matching ability and is suitable for the research and development of advanced electronic materials.
4. Excellent thermal stability
It can still maintain its dielectric properties in high temperature environment, and is suitable for high temperature electronic components and heat-resistant coatings.
Suitable for thermistors, infrared detectors and high temperature sensors.
5. Suitable for composite with a variety of functional materials
It can be composited with barium titanate (BaTiO₃), barium lanthanum titanate (BLT), ferroelectric materials, etc. to improve the comprehensive performance of the material.
It is widely used in electronic ceramics, functional composite materials and energy storage materials.
FAQ
1: Why is Strontium Titanate used in toner materials?
SrTiO₃ improves triboelectric properties, helping toner particles charge more uniformly. This leads to better image quality and cleaner printing.
2: How does SrTiO₃ improve print quality?
It helps control the electrostatic charge of toner, which improves toner transfer and adhesion, resulting in higher resolution, reduced background noise, and sharper prints.
3: What form of SrTiO₃ is used in toner?
Fine powder with particle sizes typically below 200 nm is used. It can be untreated or surface-modified for better dispersion in toner resins.
4: Is SrTiO₃ safe to use in office printers?
Yes, SrTiO₃ is chemically stable, non-toxic, and RoHS-compliant, making it suitable for consumer and commercial printing products.
5: What toner types can SrTiO₃ be used in?
It is suitable for both monochrome and color toner systems, as well as high-speed and high-resolution printers.
6: Does SrTiO₃ affect the fusing temperature?
SrTiO₃ improves the thermal behavior of toner, contributing to smooth melting and even bonding during the fusing stage.
