PVC blowing agent plays a crucial role in the PVC foaming process

PVC blowing agent plays a crucial role in the PVC foaming process, and its main functions can be summarized as follows:

Foaming action: The main function of PVC foaming agent is to produce bubbles in PVC resin, so that the sheet has the characteristics of light weight. The foaming agent forms a large number of tiny bubbles in the PVC melt through a chemical reaction or physical action (such as gas expansion), which are retained during the curing process to form a porous structure, thus significantly reducing the weight of the material.

Improved physical properties: Due to the existence of a large number of bubbles in the PVC sheet after foaming, its thermal insulation performance, sound insulation performance and buffer performance have been significantly improved. These performance improvements make PVC foam board in the construction, advertising, furniture and other fields have a wide range of application prospects.

Cost reduction: Due to the lightweight nature of PVC foam board, labor and transportation costs can be significantly reduced during transportation and installation. In addition, the addition of blowing agents also helps to reduce the consumption of PVC raw materials, thereby further reducing production costs.

Improve product quality: In the PVC foaming process, the uniform distribution of blowing agent is crucial to the quality of the product. Appropriate foaming agent dosage and foaming process can ensure the uniform distribution and stability of bubbles, so as to avoid deformation, cracking and other quality problems of products.

Promote plasticizing and processing: Some blowing agents also have a certain plasticizing effect, which can promote the plasticizing process of PVC resin, making it easier to process and form. At the same time, the addition of blowing agent can also improve the fluidity of PVC melt and improve the processing efficiency.

To sum up, PVC foaming agent plays a crucial role in the PVC foaming process, which can not only make PVC sheet with light weight, heat insulation, sound insulation and other excellent properties, but also reduce production costs and improve product quality. However, it should be noted that the type and dosage of blowing agent should be selected and optimized according to the specific application needs and process conditions.