The important influence of temperature change on polymer materials

During the use of polymer materials, due to the combined effects of environmental factors such as heat, oxygen, water, light, etc., the chemical composition and structure of polymer materials will undergo a series of changes, and the physical properties will be correspondingly deteriorated, such as hardening, Viscosity, embrittlement, discoloration, loss of strength, etc. These changes and phenomena are called aging, and the essence of aging of polymer materials is the change of their physical structure or chemical structure. Today, let's take a look at the effects of temperature on polymer materials.

When the temperature rises, the movement of the polymer chain is intensified. Once the dissociation energy of the chemical bond is exceeded, the thermal degradation or group detachment of the polymer chain is caused. The temperature is lowered, which often affects the mechanical properties of the material. The physical state of the material can be divided into The glassy state, the high elastic state, and the viscous flow state, on both sides of the critical temperature, the aggregate structure of the polymer material or the long chain of the polymer will change significantly, so that the physical properties of the material are significantly changed.

The aging test chamber produced by Beijing Yashilin can simulate and reproduce various environments in nature, and can provide environmental simulation and accelerated test for the development and quality control of polymer materials, which is indispensable for people to improve the performance of existing products. With the help of professional technology, high-quality products and perfect after-sales service, Beijing Yashilin enjoys a good reputation and reputation in the industry, and has won the trust of every customer and partner.

温度变化对于高分子材料的重要影响

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