Masterbatch

An anti-blocking agent is a sophisticated blend of specialized additives, which, when mixed and processed with plastic, significantly enhances the film's anti-adhesion characteristics, essential for easy opening. Commonly integrated into the processing of polyolefin (PE, PP) plastic films, these agents are critical for maintaining the separation of film layers and facilitating user handling.

During the plastic film and molding process, the friction between molten polymer molecules and processing machinery can increase the viscosity of the polymer melt, impeding flow and affecting the quality of the product surface. Post-molding, friction at the contact points with equipment can cause resistance and scratching defects. Slip agents are substances added to resins that, once formed, gradually migrate to the product's surface to form a lubricating layer. This reduces the coefficient of friction between the film layers to prevent sticking, as well as lowers the friction coefficient in post-processing contact with equipment, thereby minimizing resistance.

Also known as antioxidants or age resistors, these chemical substances, which may be a mixture of various compounds, serve a crucial role in polymers. Present in minuscule amounts within polymer systems, they effectively delay or inhibit the oxidation process, thereby preventing polymer aging and extending the material's lifecycle. Because antioxidants can efficiently interrupt the oxidation reaction, they are extensively utilized in the production and processing of plastics, rubber, synthetic fibers, and certain food categories, with some varieties also serving as stabilizers in cosmetics and pharmaceuticals.

Polymers used outdoors are subject to degradation, yellowing, gloss loss, brittleness, and cracking due to the effects of ultraviolet (UV) light, heat, oxygen, and metal ions, resulting in a significant decline in physical and mechanical properties. UV stabilizers, including UV absorbers and light stabilizers, are employed to combat UV light degradation and enhance weatherability. UV absorbers transform UV energy into harmless heat through molecular vibration, thus shielding the polymer, while light stabilizers capture free radicals, preventing the chain degradation reaction initiated by UV-activated polymer groups and averting further damage to the polymer.

Anti-static agents are chemical additives that are incorporated into resins or coated onto the surface of polymeric materials to prevent or dissipate the accumulation of static electric charges. These agents, categorized as surfactants, lack free-moving electrons, and operate through ionic conduction or hygroscopic actions offered by ionic groups or polar groups. This forms a conductive pathway for leaking charges, achieving the anti-static effect. They effectively resolve issues related to static electricity such as electrostatic discharge sparks, mutual adhesion, and dust attraction, ensuring product surface resistance reaches 107-1011Ω ohms. They are widely used in plastic parts, films, and profiles.