Test method for properties of amino resins
Amino resin is a kind of synthetic resin with amino group, which is usually used in coatings, adhesives, plastics, coatings and other fields. Its main components are formaldehyde and amino compounds, such as urea, melamine and so on. Amino resin has excellent physical and chemical properties, such as hardness, heat resistance, weather resistance, chemical corrosion resistance, wear resistance, and has good coating, coating adhesion and good gloss and other characteristics. Because of its good properties and diversified application characteristics, amino resin is widely used in automotive, construction, electronics, home and other fields.
Performance of detection
The following are the common performance parameters of amino resin and their brief descriptions, listed in a table:
| Parameters of performance | A brief description |
|---|---|
| Content of solids | The content of solid components in amino resins |
| Degree of viscosity | The flow properties of amino resins have an important impact on coatings, adhesives and other applications |
| pH value | Ph of amino resin solution |
| Degree of solubility | Solubility of amino resin in a specific solvent |
Density of density | The density of amino resin |
| Thermal stability | Stability of amino resin at high temperature |
| Resistance to weather | Durability of amino resins in outdoor environments |
| Resistance to chemical corrosion | Resistance of amino resins to chemicals |
| Hardness of hardness | The hardness of amino resin has an important influence on the application of coating and coating |
| Particle size distribution | The particle size distribution of amino resin particles has an important influence on the use effect in specific application scenarios |
Test method for properties of amino resins
Simple method
The following is a brief description of the testing methods for common performance parameters of amino resins:
Solid content: The amino resin sample was heated to a certain temperature and dried to a constant weight, and the ratio of the mass of non-volatile substances to the total sample mass was calculated.
Viscosity: Use viscometer and other equipment to measure the viscosity of amino resin solution.
pH value: Use PH meter and other equipment to measure the pH of amino resin solution and evaluate its stability and application effect.
Solubility: The amino resin sample is added to a specific solvent, shaken or stirred and then left to observe the dissolution of the amino resin and evaluate its solubility.
Test method for properties of amino resins
Density: Measure the density of amino resin using equipment such as a densitometer.
Thermal stability: The amino resin sample was heated to a certain temperature and its thermal stability was observed for a certain period of time.
Weather resistance: The amino resin coating or sample is placed in the outdoor environment and its weather resistance is evaluated after a certain period of time.
Chemical resistance: The amino resin coating or sample is exposed to chemicals and its chemical resistance is evaluated after a certain period of time.
Hardness: Use equipment such as a durometer to measure the hardness of amino resin.
Test method for properties of amino resins
Particle size distribution: The particle size distribution of amino resin particles was measured using particle size analyzer and other equipment.
Note: Different performance parameters may require different testing methods and equipment, and there may be some industry standards and specifications, for the performance testing of amino resins, the corresponding testing methods and standards should be selected according to the actual needs. At the same time, it is necessary to strictly control the test conditions and standardize the operation during the experiment to ensure the accuracy and reliability of the test.