What problems should be paid attention to in powder surface modification
Powder surface modification refers to the use of physical, chemical, mechanical and other methods to treat the surface or interface of powder materials, and purposefully change the chemical properties of the surface of powder materials to meet the development of modern new materials, new processes and new technologies. need. It is a new technology that integrates powder processing, material processing, material properties, chemicals, and machinery.
The following aspects should be paid attention to in the work of powder surface modification.
- The principle and method of powder surface modification
(1) The relationship between surface or interface properties and their application performance
(2) The mechanism and model of action between the surface or interface and the surface modifier or treatment agent
(3) The basic principles or theoretical basis of various surface modification methods, including the thermodynamics and kinetics of the surface modification process, simulation and chemical calculations, etc.
- Surface modifier and its formula
(1) The relationship between type, structure, molecular weight, active group and its application performance or function
(2) Mechanism and model of action with powder surface and composite materials
(3) Dosage and method of use
(4) Preparation or synthesis of new and special surface modifiers
- Surface modification process and equipment
(1) Process flow and process conditions for surface modification of powders of different types and uses
(2) Surface modification formulas of different types and different uses of powder
(3) Factors affecting the effect of surface modification
(4) Research and development of high-performance and special modified equipment
- Process control and product characterization and detection technology
(1) Monitoring technology such as process temperature, concentration, acidity, time and surface modifier dosage, surface coverage rate or coating thickness
(2) Characterization and detection (direct detection and characterization) methods and instruments of surface modified products;
(3) Correspondence between control parameters and indicators and intelligent control of the process.
Article source: China Powder Network