How do silica opening agents improve film anti-adhesion?

Adhesion is an inevitable issue during the manufacturing, processing, and application of plastic films. How can plastic film production achieve anti-blocking performance? Our silica opening agent offers the perfect solution!

Plastic film adhesion mainly stems from two key factors:

When films are closed, a vacuum-tight seal forms between layers, making separation difficult.

After film formation, numerous exposed molecular chains on the surface become entangled between two layers, preventing them from opening.

In reality, these two factors coexist, with the latter being the primary cause of poor opening performance.

Anti-blocking Mechanism of Silica Opening Agent

Our Silica Opening Agent creates micro-protrusions on the film surface. These protrusions allow air to penetrate, reducing the negative pressure between layers and enabling easy separation—delivering reliable anti-blocking effects.

Plastic films are widely used in electronics, consumer goods, labels, print protection, pharmaceuticals, chemicals, optical imaging, new energy, and other fields. As market demand for various 

films continues to grow, key properties such as transparency, haze, and food safety have been continuously optimized.

Chengju Silica Opening Agent is compatible with various plastic film processes including PP, PE, PET, and PVC, perfectly resolving the "adhesion" problem of plastic films.  

Chengju silica opening agent key features & advantages:

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