Know Why Regrind Resins Are Beneficial

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Plastic is an essential part of our daily lives, used in homes, businesses, and industries around the world. While it's incredibly useful, its disposal has been a major environmental challenge for many years. Fortunately, awareness about plastic waste has grown significantly, leading to increased efforts in producing and using recyclable and reusable plastics. One such material is regrind resin, which refers to plastic or resin that has already been processed through heat, like molding or extrusion, before being reused. This process plays a vital role in reducing plastic waste and protecting the environment. Regrind resins are commonly used in manufacturing various plastic components, and this article will explore their types, key considerations, and benefits in today’s sustainable landscape.

Understanding Different Types and Features of Regrind Resins

Regrind resins are created from post-consumer or industrial plastic waste that has been chopped and ground into small particles for reuse. These materials come from a wide range of polymer types, each with unique properties, costs, and durability. Some common characteristics of polymers used in regrind resins include:

  • Many of them are rigid and offer strong impact resistance.
  • Some have excellent thermal and mechanical properties, along with high tensile strength.
  • Crystalline polymers often provide good dimensional stability and rigidity, making them suitable for harsh environments.
  • Polyurethanes can be elastic and resistant to abrasion, oil, and chemicals.

Common polymers used in the production of regrind resins include:

  • Acetal
  • Acrylonitrile Butadiene Styrene (ABS)
  • Nylon 6/6
  • Polyphenylene Sulfide (PPS)
  • Polyether Imide (PEI)
  • Thermoplastic Polyurethane (TPU)
  • Thermoplastic Polyester Elastomers (TPEs)
  • Cellulose Acetate Butyrate (CAB)
  • High Impact Polystyrene (HIPS)

Key Factors to Consider When Using Regrind Resins

Despite growing interest, some manufacturers still believe regrind resins are inferior to virgin resins. However, there are several advantages to using regrind, beyond just environmental benefits. Here are important factors to keep in mind:

  • Some people think that once a resin is heated, it cannot be reused due to changes in molecular weight. However, even virgin resins go through similar processes. The key is to ensure proper quality control and testing when using regrind.
  • Determine the right blend of regrind and virgin resin for your specific application.
  • The type of polymer used affects performance, and sometimes multiple polymers are combined to achieve desired results.
  • Molding quality and technique are crucial, especially for precision parts.
  • Ensure that suppliers and handlers maintain accurate calibration and proper handling procedures.

How to Maximize the Benefits of Regrind Resins

To get the most out of regrind resins, a thorough and controlled process is essential. Here are some best practices:

  • Decide on the optimal percentage of regrind to use, and avoid incorporating degraded materials.
  • Using 100% regrind can be more efficient, provided you fully consume the virgin resin first. This reduces blending issues and improves consistency.
  • 100% regrind helps cut costs and conserve resources.
  • It’s easier to monitor quality and prevent contamination when using pure regrind.
  • Adopting regrind supports sustainability, enhancing your company’s reputation and customer trust.

Regrind resins can deliver a high-quality finish and perform just as well as virgin resins. If you're looking for reliable regrind resins that enhance product quality while supporting environmental goals, choose a trusted supplier. Mid Continent Plastics is a leading provider of eco-friendly resins with over 30 years of experience in the industry.

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