What are the differences in resistance to abrasion from gravel between these plastics?

When evaluating plastics for applications involving exposure to gravel, abrasion resistance is a critical factor. Different plastics exhibit varying levels of durability when subjected to abrasive forces. Here’s a comparison of common plastics and their performance against gravel abrasion:

1. Polyethylene (PE): Known for its toughness, PE (especially UHMWPE) offers excellent abrasion resistance, making it suitable for high-wear environments.

2. Polypropylene (PP): While PP is lightweight and chemically resistant, its abrasion resistance is moderate compared to PE, limiting its use in harsh conditions.

3. Nylon (PA): Nylon performs well under abrasion due to its high tensile strength, but moisture absorption can reduce its durability over time.

4. Polycarbonate (PC): PC is impact-resistant but less abrasion-resistant than PE or nylon, making it better suited for applications where scratches are less critical.

5. Acrylic (PMMA): Acrylic is prone to scratching and performs poorly under abrasive conditions like gravel exposure.

For optimal performance in gravel-heavy environments, UHMWPE or nylon are often preferred due to their superior wear resistance. Understanding these differences helps in selecting the right material for durability and longevity.