強化剤についてどのような特性をテストする必要があるか? 検出方法?
強化剤とは、材料の靭性を高めることができる添加剤を指します。, which is mainly used to improve the impact resistance, toughness and crack resistance of plastics, ゴム, coatings and other materials, so as to improve the mechanical properties and service life of materials. Toughening agents are usually polymer compounds or inorganic substances with high molecular weight and molecular weight distribution, which can form a uniformly dispersed phase in the material, thus effectively absorbing and dispersing stress, and improving the toughness and impact resistance of the material. Common toughening agents include polyurethane, acrylic copolymer, ethylene-propylene copolymer, calcium silicate, sodium aluminum silicate, 等.
Index of performance
The following are common toughening agents and their properties and indicators that may need to be tested:
| Toughening agent | Performance and metrics that may need to be tested |
|---|---|
| Polyurethane polyurethane | 抗張力, 伸長, impact strength, 熱安定性, 耐候性, 耐食性 |
| Acrylate copolymer | Thermal deformation temperature, glass transition temperature, 抗張力, 破断伸び, 耐衝撃性, 耐候性, chemical corrosion resistance |
| Ethylene-propylene copolymer | Impact strength, flexural modulus, 熱安定性, 抗張力, 破断伸び, 耐候性, chemical resistance |
| Calcium silicate | 粒子サイズ, particle distribution, 比表面積, 硬度, 粘度, rheological properties, dispersibility |
| Sodium aluminum silicate | 粒子サイズ, particle distribution, 比表面積, 硬度, 粘度, rheological properties, 分散, 熱安定性, 耐候性 |
強化剤についてどのような特性をテストする必要があるか? 検出方法?
The properties and indicators to be tested mainly include physical properties, mechanical properties, thermal properties, 耐候性, corrosion resistance and other aspects. Specific test methods and test standards may vary depending on the type of toughener, application scenarios and requirements. Commonly used test methods include tensile test, impact test, thermal analysis, particle analysis, rheological test, 等. 実用化において, it is necessary to make reasonable selection and use according to specific requirements, and test and control in the production process to ensure product quality.
試験方法
Specifically how to detect the performance and index of toughening agent, it is necessary to select the corresponding test method and test standard according to different performance and index. Here are a few common testing methods:
引張試験: it can measure the influence of the toughener on the tensile strength, elongation and other properties of the material. The test methods include tensile test and shear test.
強化剤についてどのような特性をテストする必要があるか? 検出方法?
Impact test: It can measure the effect of the toughener on the impact resistance of the material. The test methods include impact test and drop hammer test.
Thermal analysis: It can measure the influence of toughener on the thermal stability, glass transition temperature and other properties of the material. The test methods include thermogravimetric analysis, 示差熱分析, thermal expansion analysis, 等.
Particle analysis: it can measure the particle size, particle distribution, specific surface area and other indicators of toughening agent. The test methods include laser granulometer, electron microscope and so on.
Rheological test: It can measure the effect of toughening agent on the rheological properties of materials. The test methods include rotary viscosimeter, dynamic mechanical analyzer, 等.
When testing the performance of toughener, it is necessary to select the corresponding test method and test standard according to the specific requirements, and ensure the accuracy and reliability of the test results.