Fire safety is one of the most important concerns in industries ranging from electronics to automotive and construction. Over the years, different flame-retardant technologies have been developed to minimize risks, but some continue to dominate specific high-risk applications. Among these, halogenated flame retardants remain widely used despite growing discussions about alternatives. The reason is simple: in critical safety applications where reliability is non-negotiable, these flame retardants consistently deliver unmatched performance. What Are Halogenated Flame Retardants? Halogenated flame retardants are element-based additives like bromine and chlorine. They are added to polymers and other materials to minimize flammability as well as hold back fire. When subjected to fire, they emit halogen radicals that disrupt the chemical reaction involved in the combustion process, thereby slowing down or halting the flames' spread. Their fast action and low concentration capability ...
Polyolefin films are made using a lot of additives that improve and minimize handling issues. Most polyolefins have some tackiness in their natural condition, making it difficult to manufacture them into packaging films without adding additives that make them easier to separate and slide. Slip masterbatch are utilized to make a film more prone to sliding over itself or other pieces of converting machinery. The amides chemical family contains compounds that are crucial for the industry and are frequently referred to as quick bloom and slow bloom additives. The coefficient of friction and other factors are typically used to determine how effective slip additives are. The rates of surface bloom and COF reduction vary among slide agents. As a result, a single slip agent may only sometimes deliver the results a consumer desires.
What are Slip Additive Masterbatches?
Slip masterbatches provide slip effect and anti-block performance by reducing friction between polymers and processing machinery and between polymer-to-polymer contacts. Slip agents also function as mold-releasing agents and plate-removing agents in molding applications. Slip masterbatches come in two different varieties:
- Long-term Slip Agent: it helps to utilize when high processing temperatures are required or if printing or sealing is done right after processing the film.
- Short-term Slip Agent: It is used as a mold release agent and on very thin films
Properties of Slip Agents:
- The final COF might not be achieved 7–10 days after extrusion because the slip agent migrates slowly. The majority of COF reduction typically occurs within 24 to 48 hours.
- The processor must adjust the slip additives to the process and require end-properties. In some circumstances, a fast-blooming oleamide is needed, whereas, in other circumstances, a slow-blooming amide is recommended.
- High amounts of slip can compromise printability and sealability, as well as the surface treatment of the film.
- To maintain the same COF, the amount of slip agent must be decreased when the film thickness is increased.
- Slip additives in trace levels improve the hand of the film while also facilitating processing.
- Slip additives can improve the mold release characteristics of molding operations.
Features of Slip Additive Masterbatches:
- Depending on the additives sluggish migration properties, they may be accessible to various industries.
- This Slip Master batch's concentration depends on the needed COF level and polymer type.
- Slip Masterbatches will have low volatility, and slow migration has no impact on bond strength.
Summing It Up:
Many industries produce a wide range of slip concentrates tailored to different needs regarding base resin requirements and bloom rate. A slower pace of exudation is preferred by many film processors, despite the initial appearance that a higher bloom rate is always advantageous. Because slip concentrates come in various polyolefins, they are more compatible with polypropylene and other film-making resins.
Comments
Post a Comment