Know Why Regrind Resins Are Beneficial

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Plastic is an essential part of our daily lives, used extensively in homes, businesses, and industries. While it has revolutionized the way we live and work, its disposal has been a growing concern for many years. Fortunately, increased awareness from both individuals and governments has led to the development and use of recyclable and reusable plastics. One such material is regrind resin, which refers to plastic or resin that has previously undergone some form of heat processing, such as molding or extrusion, before being reused. This process plays a crucial role in reducing environmental impact and minimizing plastic waste. Regrind resins are widely used in manufacturing various plastic parts and products. In this article, we’ll explore the different types, key considerations, and advantages of using regrind resins in today’s world.

Understanding Different Types and Characteristics of Regrind Resins

Regrind resins are made from post-consumer or industrial plastic waste that has been processed and ground into smaller particles for reuse. These materials come from a variety of polymer types, each with unique properties, cost structures, and durability levels. Some common characteristics of polymers used in regrind resins include:

  • Many of them are rigid and offer good impact resistance.
  • Some have excellent thermal and mechanical properties, along with high tensile strength.
  • Certain crystalline polymers provide dimensional stability and rigidity, making them suitable for harsh environments.
  • Some polyurethanes are flexible, resistant to abrasion, oil, and chemicals, making them ideal for specific applications.

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 their benefits, there is still some hesitation among manufacturers who may not fully trust the quality of regrind resins compared to virgin resins. However, when properly managed, regrind resins can be just as effective. Here are some important factors to keep in mind:

  • Some people believe that once a resin is heated, it cannot be reused because its molecular structure changes. However, this is also true for virgin resins, which go through at least one heat cycle during production. With proper testing and quality control, regrind resins can perform just as well.
  • Determine the right percentage of regrind to mix with virgin resin based on the application and desired performance.
  • The type of polymer used in the regrind and its properties will affect the final product. Sometimes, multiple polymers are blended together.
  • The quality of the molding process and the method used are critical, especially for precision components.
  • Ensure that the suppliers and handlers of regrind resins maintain proper calibration and cleanliness standards.

How to Maximize the Benefits of Regrind Resins

To get the most out of regrind resins, it's important to follow best practices throughout the entire process. Here are some tips to help you make the most of your regrind resin usage:

  • Decide on the optimal ratio of regrind to virgin resin and avoid using degraded or low-quality material in the mix.
  • Consider using 100% regrind if possible. This can reduce costs and eliminate the need for blending, which helps maintain consistency and quality.
  • Using 100% regrind can lead to significant cost savings and resource efficiency.
  • It's easier to monitor quality and prevent contamination when using 100% regrind, ensuring better end results.
  • Adopting regrind resins also demonstrates a commitment to sustainability, enhancing your company's reputation and market appeal.

Regrind resins can deliver a high-quality finish and perform just as well as virgin resins when properly handled. If you're looking for reliable, high-quality regrind resins that enhance your product's finish, it's important to work with a trusted supplier. Mid Continent Plastics is a leading provider of eco-friendly resins with over 30 years of experience in the industry, offering sustainable solutions for a wide range of applications.

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