◆Observation of polymer morphology：

SEM can be used to directly observe the morphology of polymers, such as sphaerocrystals, lamellar crystals, fibrous structures, etc., so as to understand the crystal habits and morphological characteristics of the polymers.

◆Crystalline polymer crystalline structure：

For crystalline polymer materials, SEM can clearly display their crystalline structure, including the shape, size, distribution and crystal boundaries of crystal grains, which is helpful to understand the crystallization process and crystal growth mechanism.

◆When observing polymer blends, SEM can be used to study the compatibility of blends by analyzing the distribution state, interface morphology and phase separation of different components in the blends. It is of great significance for the development of new polymer blending materials.

◆With the development of the nanotechnology, the research of polymer nanomaterials has attracted more and more attention. SEM can be used to observe the morphology, size, and distribution of nano particles and the dispersion state of nanoparticles in the polymer substrate, which provides important information for the preparation and application of nanomaterials.

◆Polymer porous materials are widely used in separation, adsorption, catalysis and other fields. SEM can be used to observe the pore structure characteristics of the surface or section of porous materials, such as pore size, pore shape, pore distribution, etc., which provides an important reference for the preparation and application of porous materials.