Learning objective
Students should be familiar with how additives are used in specific polymer products, eg patio furniture, food packaging and carrier bags. Wood enhancement The combining of natural timber with resins and lamination to give enhanced properties, eg increased strength and stability. Enhancing timber products with preservatives, finishes and coatings. Metal enhancement.
Read the explanation, check the common trap, then practise with flashcards and questions.
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Enhancement of materials
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Enhancement of materials
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Quick explanation
Students should be familiar with how additives are used in specific polymer products, eg patio furniture, food packaging and carrier bags. Wood enhancement The combining of natural timber with resins and lamination to give enhanced properties, eg increased strength and stability. Enhancing timber products with preservatives, finishes and coatings. Metal enhancement
- This point belongs to Enhancement of materials, especially Enhancement of materials.
- You need to be able to students should be familiar with how additives are used in specific polymer products, eg patio furniture, food packaging and carrier bags. Wood enhancement The combining of natural timber with resins and lamination to give enhanced properties, eg increased strength and stability. Enhancing timber products with preservatives, finishes and coatings. Metal enhancement.
- Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.
Why it matters
This objective helps connect Enhancement of materials to exam-style questions, flashcards, and revision notes for Enhancement of materials.
Quick student answer
Which of the following is a common additive used in food packaging to enhance its properties?
Direct answer
Polypropylene is often used in food packaging due to its excellent barrier properties and flexibility.
Key terms
- Composite materials: Materials made from two or more constituent materials with significantly different physical or chemical properties.
- Preservatives: Chemical substances used to protect wood from decay and insect damage.
Common trap
Confusing additives with fillers: Additives enhance specific properties, while fillers are used to reduce costs and improve bulk without enhancing performance.
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Related learning objectives
- Students are expected to be able to describe enhancement methods for given materials and explain their suitability for specific product applications. Understand the appropriate use of materials, including polymers, composites, woods and based on their physical properties. Polymer enhancement.
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- The use of additives to enhance properties, including: • UV stabilisers to prolong the life of polymers • bio-batch materials to encourage biodegradability.
Enhancement of materials
- Students should be aware of heat treatment methods of enhancing metals, including: • case hardening • hardening and tempering.
Enhancement of materials