ReClaym our Compost: Biodegradable Clay for Intimate Making

Title of the Paper

ReClaym our Compost: Biodegradable Clay for Intimate Making

Paper Information

• Topic Area: Sustainable Design and Crafting (Human-Computer Interaction, Biodegradable Materials, DIY Culture)
• Keywords: Biomaterials, Bio-HCI, Sustainability, Intimate Making, Biodesign, Waste Recycling, Sustainable Manufacturing, Biodegradability, Crafting, Food Waste

Research Background and Issues

• Identified Problems or Challenges:
  • The concepts of "food waste" and "waste" are often associated with disgust and considered useless, while their environmental impact is increasingly significant.
  • Food waste is currently mainly used as soil fertilizer, and its potential as a sustainable design material remains underexplored.
• Importance:
  • Current environmental issues demand the development of new, sustainable, circular materials to enable resource reuse and reduce waste.
• Research Motivation:
  • To create fully biodegradable materials from everyday food waste, exploring deeper relationships between humans and materials.
  • To combine material science and crafting techniques to develop new design methods and material applications.

Solution

• Proposed Method or Solution:
  • ReClaym Material: A biodegradable, clay-like material made from personal kitchen compost waste combined with non-toxic binders.
  • Concept of "Intimate Making": Enhancing interaction between materials and makers through familiar crafting techniques such as hand sculpting, molding, and extrusion, fostering a deeper understanding of material properties and limitations.
• Innovations:
  • Introducing the concept of "intimate making" to familiarize makers with the unique characteristics and constraints of materials through manual methods.
  • Using food waste to produce personalized materials that reflect individual dietary culture, culinary practices, and relationships with food.
  • Developing a closed-loop sustainable innovation design cycle, including waste collection, material production, product creation, usage, and eventual degradation.
• Implementation Steps and Key Techniques:
  • Creating "ReClaym Material" by combining kitchen compost with water, sodium alginate, and calcium carbonate.
  • Designing adjustable formula ratios through multiple rounds of material iteration experiments to ensure the material's suitability for crafting three-dimensional shapes (e.g., sculptures, extrusions).
  • Customizing additional material functionalities, such as color changes, conductivity, light sensing capabilities, and sterilization properties, for various manufacturing contexts.
  • Exploring non-electronic, manual methods as alternatives to mechanical techniques to reduce reliance on energy and equipment while enhancing user experience.

Research Outcomes

• Specific Results:
  • Successfully developed a compost-based material, ReClaym, suitable for intimate making.
  • Demonstrated how ReClaym's design space can be further customized through attributes like color, texture, sensing, and conductivity.
  • Created various ReClaym products for different application scenarios, such as gardening-related items (e.g., biodegradable plant pots, shell sculptures), personalized game pieces, and household utensils (e.g., tableware, musical instruments).
• Comparative Advantages:
  • ReClaym is primarily composed of food waste, is fully biodegradable, and requires no specialized equipment during production, lowering the barrier for waste reuse.
  • Compared to other ceramic materials (e.g., traditional clay), ReClaym is lighter in weight and cost-effective, making it suitable for DIY communities and environmentally friendly needs.
• Experimental and Evaluation Results:
  • Experiments confirmed the effectiveness of ReClaym's sterilization process, with sufficient color diversity and decorative performance to support product applications.
  • The material can also serve as a conductive component in interactive game designs (e.g., musical sensory touchpoints).
  • The closed-loop lifecycle process of ReClaym was validated through design evaluations, demonstrating its potential for circular usage.
• Limitations and Future Directions:
  • ReClaym is challenging to use for precise and intricate designs, being more suited to rough, heavy structures.
  • Optimization of composting and material production timelines is needed, as the process can be slow.
  • Highly reliant on manual crafting techniques, and the material becomes brittle and water-sensitive after drying.
  • Future research could focus on improving performance (e.g., water resistance) and enhancing adaptability for broader market applications.