Sustainable Materials (Junior Cert Applied Technology): Revision Notes

Sustainable Materials

Sustainable materials are now a major focus when talking about protecting our environment and managing resources. As we learn more about environmental issues, using sustainable materials becomes important to decrease our planet's harm.

Definitions

• Sustainable Materials: These are materials that don't run out natural resources or harm the environment during their use.
• Biodegradable: These materials break down naturally, helping to reduce waste.
• Recyclable: These materials can be made into new products, reducing the need for new resources.
• Renewable Materials: These come from sources that grow back quickly, like bamboo.
• Lifecycle Analysis (LCA): This measures energy use, resource use, and waste from beginning to end. It helps find where things can be made more sustainable.

Why Sustainable Materials Matter

Sustainable materials are very important in building and making products today. They help solve problems like climate change by reducing emissions and using resources efficiently.

Environmental and Economic Benefits

• Environmental Benefits:
  • Use eco-friendly materials to cut carbon emissions.
  • Depend less on limited resources.
• Economic Benefits:
  • Save money over time by spending less on materials and waste.

Types of Sustainable Materials

• Biodegradable: Packaging that breaks down naturally cuts waste.
• Recyclable: Recycled plastics reduce our need for new raw materials.
• Renewable: Bamboo is a great choice because it grows fast and renews.

Lifecycle Analysis

This analysis examines the complete journey of a material. It shows where improvements can make things more sustainable.

Examples and Case Studies

• Construction: Using recycled steel and bamboo in buildings reduces energy and waste. LEED buildings are a good example.
• Electronics: Using biodegradable plastics in products like phone cases helps reduce plastic waste.

Challenges

Here are some challenges:

• High Initial Costs: High costs come from small production and new technology.
• Technology Limits: Current technology limits how materials can be recycled and processed.
• Limited Awareness: Not everyone knows about or wants to use sustainable materials.

Future Trends

The future involves new biomaterials, 3D printing, and AI to improve materials.