Elastic wrapping film Selected advanced five-layer co-extrusion process, smooth surface, good tensile resistance
Plastic self-adhesive stretch film Exquisite workmanship, toughness foot, not easy to puncture
Tray wrapping film The appearance is smooth, model and brand lettering is clear, convenient for customers to better recognize
Payment terms：We accept T/T，LC，DP and OA30，etc.
Different types of additives such as plasticizers, nucleating agents, lubricants, antioxidants, etc. added to the stretch film will affect the stretch ratio of the stretch film through different mechanisms of action:
Plasticizer
Elastic wrapping film Reduce intermolecular forces: Plasticizers can be inserted between the polymer chains of the stretch film, weaken the interaction forces such as van der Waals forces between the molecular chains, and make the molecular chains easier to slide relative to each other. In this way, the molecular chains can move and orient more smoothly during stretching, thereby increasing the stretch ratio of the stretch film.
Elastic wrapping film Increasing flexibility: The addition of plasticizers can increase the flexibility and plasticity of the stretch film, so that the stretch film can withstand greater deformation without breaking during the stretching process, thereby increasing the stretch ratio.
Nucleating agent
Elastic wrapping film Change crystallization behavior:Tray wrapping film Nucleating agents can act as crystal nuclei in the crystallization process of the stretch film, promote crystallization, speed up the crystallization rate, increase the crystallinity, and make the grain size smaller and more evenly distributed. Smaller and more uniform grains can provide more interfaces and space for the movement of molecular chains, and the molecular chains can be better oriented during stretching, which helps to increase the stretch ratio.
Plastic self-adhesive stretch film Enhance mechanical properties:Tray wrapping film By refining the grains, the nucleating agent can improve the mechanical properties of the stretch film to a certain extent, making the stretch film less likely to break during stretching, thereby achieving a higher stretch ratio.
Lubricant
Plastic self-adhesive stretch film Reduce internal friction:Tray wrapping film Lubricants can reduce the internal friction between molecular chains in the polymer system of the stretch film, making it easier for the molecular chains to slide against each other during stretching, which is conducive to improving the stretch ratio.
Tray wrapping film Improve processing performance:Tray wrapping film Lubricants can improve the fluidity of the stretch film during processing, make the material more uniform during the molding process, and reduce defects such as internal stress concentration. This allows the stretch film to deform more evenly during stretching, improving the stretch ratio while ensuring the stretching quality.
