Product Introduction

This product is a low-melting-point elastic hot-melt adhesive primarily made from GRS-certified recycled polyurethane, PCL, PLA, PBAT, and other biodegradable plastics, along with coffee grounds as the main raw materials. It significantly reduces the use of traditional plastics, with biodegradable/recyclable materials accounting for approximately 85% of the total product. It is a bio-based biodegradable material suitable for footwear applications.

Manufacturing Process

The production process begins with pre-treatment of coffee grounds, including modification, drying, grinding, and pelletizing, to improve their processability. The treated coffee grounds are then melt-extruded with TPU and other materials using a twin-screw extruder.

Rationale for Product Design

1. Stable supply of coffee grounds: The global annual output of coffee grounds is approximately 6 million tons, with China's annual production reaching 400,000 tons. Instant coffee factories and coffee shops generate a stable daily supply, making recycling costs manageable.

2. Enhanced material properties: The main components of coffee grounds, such as cellulose, hemicellulose, and lignin, can improve compatibility with certain polyester plastics after high-temperature heating, enhancing the material's mechanical performance and thermal stability.

3. Advantages of recycled polyurethane: GRS-certified recycled polyurethane offers excellent wear resistance, low-temperature resistance, toughness, elasticity, oil resistance, and chemical resistance. It serves as an important source of polyurethane, reducing the consumption of petrochemical raw materials.

Product Features

1. Utilizes biodegradable and recycled materials.

2. Low application temperature, ensuring easy operation.

3. Excellent adhesive performance.

4. Unique coffee aroma with deodorizing and insect-repelling effects.

5. Bio-based content: ≥20%.

6. Biodegradable/recyclable materials accounting ≥85% of the total product.