What are the inspection items for chloroprene rubber materials?

1. Appearance quality inspection items

The appearance quality of chloroprene rubber materials is one of the factors that directly affect their service life and performance, so they must be strictly inspected. The specific inspection items are as follows:

(1) Check whether the surface of the chloroprene rubber material is flat and smooth, and whether there are defects such as bubbles, large particles, and impurities.

(2) Check whether the color of the chloroprene rubber material is uniform and consistent, and whether there is color difference, discoloration, etc.

(3) Check whether the surface of the chloroprene rubber material has cracks, peeling, mildew, aging, etc.

(4) Check whether the surface of the chloroprene rubber material has obvious scratches, pits, wear marks, etc.

2. Mechanical property inspection items

Chloroprene rubber materials need to withstand large tensile, compression, shear and other forces during use, so mechanical properties are one of their key quality indicators. Common inspection items include:

(1) Tensile properties: measure the tensile strength, elongation at break, breaking strength and other parameters of chloroprene rubber materials.

(2) Compression performance: measure the compression deformation rate, rebound rate and other parameters of chloroprene rubber materials at different temperatures and pressures.

(3) Shear performance: measure the shear force, shear modulus and other parameters of chloroprene rubber materials at different temperatures and shear rates.

3. Thermal performance inspection items

Chloroprene rubber materials are prone to hardening and aging in high temperature environments, so thermal performance is also an important item that needs to be inspected. Specific inspection items include:

(1) Measure the thermal deformation temperature, thermal decomposition temperature and other parameters of chloroprene rubber materials.

(2) Measure the hardness, elastic modulus and other parameters of chloroprene rubber materials at different temperatures.

(3) Measure the aging rate, aging index and other parameters of chloroprene rubber materials in high temperature environments.