To preventPVC wind duct clothDeformation and fading can be considered and operated from the following aspects:

1、 Prevent deformation

1. Storage environment:

Avoid placing PVC duct cloth in environments with high temperatures or direct sunlight to prevent shape changes caused by heat.

Keep the storage environment dry and avoid contact with solvents, chemicals, or any substances that may cause the material to soften or expand.

2. Processing process:

During processing, ensure to use the correct processing temperature and avoid excessive heating, as high temperatures can cause PVC to soften and potentially deform.

After processing, appropriate cooling should be carried out to slowly and evenly cool the PVC air duct cloth to room temperature to avoid the generation of internal stress.

The use of heat stabilizers can increase the thermal stability of PVC and reduce deformation caused by temperature changes.

3. Molding control:

Controlling the processing and cooling speed during the molding process is crucial. Excessive cooling can cause uneven internal stress within PVC, leading to deformation.

For PVC air duct fabric that has already been processed, internal stress can be eliminated through annealing treatment. This usually involves heating the product to a temperature below its melting point and then slowly cooling it down.

4. Product Design:

Consider structural uniformity during the product design phase to avoid significant differences in thickness, which helps prevent deformation caused by uneven cooling or heating.

2、 Prevent fading

1. UV protection:

If PVC air duct fabric will be used outdoors, ensure that the formula contains sufficient UV stabilizers to reduce material degradation and fading caused by UV exposure.

For PVC wind duct cloth that needs to be used outdoors for a long time, shading measures can be taken to reduce direct sunlight and slow down the fading rate.

2. Chemical protection:

Avoid contact between PVC duct cloth and chemicals, especially those that may cause redox reactions, to reduce damage to the plastic surface.

3. Regular cleaning:

Regularly clean the surface of PVC air duct cloth to reduce the deposition of pollutants such as dust and chemical gases, which are also important causes of fading.

4. Material selection:

During the manufacturing process, additives such as antioxidants and UV absorbers can be added to enhance the stability of PVC air duct fabric and reduce the possibility of fading.

In summary, preventing deformation and fading of PVC air duct fabric requires comprehensive consideration and management from multiple aspects such as storage, processing, formula design, product design, and post-treatment. By optimizing these processes, the deformation and fading issues of PVC air duct fabric can be significantly reduced, extending its service life.