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As a material widely used in the packaging industry, polyethylene film, its surface smoothness is crucial to the packaging process and product experience. However, due to its molecular structure and characteristics, PE film may have problems with stickiness and roughness in some cases, affecting its smoothness.

Therefore, improving the smoothness of PE film has become a hot topic in the industry!

1. Material selection:

A low-viscosity resin such as low-density polyethylene (LDPE) is preferred, which can reduce the adhesion between materials and improve the smoothness of the film.

2. Adding lubricants:

Adding an appropriate amount of Slip Additive For Plastic Film to polyethylene, such as SILIKE Super Slip Anti-Blocking Masterbatch SILIMER 5062, can reduce the surface viscosity and improve the sliding properties of the film.

SILIKE Super Slip Anti-Blocking Masterbatch SILIMER 5062 is a long-chain alkyl-modified siloxane masterbatch containing polar functional groups. It is mainly used in PE, PP, and other polyolefin films and can significantly improve the smoothness of the film, and lubrication during processing can greatly reduce the film surface dynamic and static friction coefficient, making the film surface smoother. At the same time, SILIKE Super Slip Anti-Blocking Masterbatch SILIMER 5062 has a special structure with good compatibility with the matrix resin, no precipitation, and no effect on the transparency of the film.

3. Process improvement:

Control the extrusion temperature: Reasonable control of the extrusion temperature can reduce the viscosity of the molten film and improve its fluidity, thereby improving surface smoothness. Optimize the cooling system: adjust the temperature and speed of the cooling roller to ensure rapid cooling of the film, speed up the curing process, reduce surface texture, and improve smoothness.

The smoothness of PE film can be significantly improved by selecting appropriate materials, optimizing processing technology, and adding Slip Additive For Polyethylene Film. The application of these technologies SILIKE Super Slip Anti-Blocking Masterbatch SILIMER 5062 will promote the wide application of PE film in the packaging industry, enhance the market competitiveness of products, and provide a better user experience.

How to solve the problem that traditional film slip agent is easy to precipitation migrate stickiness?

In recent years, automation, high-speed and high-quality development of plastic film processing methods in improving production efficiency to bring significant results at the same time, the drawbacks are also gradually apparent. The faster the processing speed, the more likely to produce static electricity due to friction, the film (plastic products) the more likely to stick to each other, seriously impeding the extrusion of high line speed, the better the transparency of the film, the higher the temperature of the processing and molding, the more likely to be agglomerated, sticking. Adding efficient slip agents and anti-adhesion agents becomes a simple and efficient means to realize plastic production and automated packaging.

Currently, common film slip agents include amides (oleic acid amides and erucic acid amides), ultra-high/high molecular weight silicones, and silicone waxes. Amide additives add a low amount, a good effect, but the smell is big, in different temperatures under the performance of the big difference, with the passage of time and temperature changes, will be from the film surface layer of the inner membrane outward migration exudation of a thin layer of powder or wax-like substances, the longer the time, the more migration, not only affects the work of the automatic packaging machine, but also affects the suitability of the printing, composite strength, and the packaged goods produced by the pollution, and so on. While the ultra-high/high molecular weight silicones have the advantages of excellent high-temperature resistance and slow precipitation, they also inevitably affect the transparency of the film, printability, and other issues.

SILIKE Super-slip masterbatch is specially developed for plastic films. lt uses specially modified silicone polymer as the active ingredient, which overcomes the problems of easy precipitation sticky of general slip agents and stickiness at high temperatures, Non-migratory slips!

Typical applications:

SILIKE Super-slip masterbatch is widely used in the production of BOPP, CPP, PE, TPU, EVA films, cast films and extrusion coatings, etc.

Benefits:

1. A small amount of addition SILIKE Super-slip masterbatch can effectively reduce the coefficient of friction, improve processing performance, and have various functions, such as smooth, anti-blocking, and anti-sticking.

2. SILIKE Super-slip masterbatch, No precipitation, no stickiness at high temperatures, good stability, no migration.

3. SILIKE Super-slip masterbatch, Improve the adhesion of the film on the high-speed packaging line, without affecting the processing, printing, and heat-sealing properties of the film.

4. SILIKE Super-slip masterbatch, The compatibility, and dispersion are better, and it does not affect the printing of the paint film.