Polymers
Overview
Polymers are the second great family of graphic materials. Where paper and card give a printable, foldable surface, polymers give transparency, waterproofing, flexibility and durability that fibre cannot. A clear drinks bottle, a laminating pouch, a self-adhesive vinyl shop sign, a polypropylene presentation folder and a 3D-printed model are all graphic products made from polymers. For the designer, the skill is knowing which named polymer gives the right balance of clarity, toughness, cost and recyclability.
This note covers the graphic-products polymer objectives: how polymers are classified into thermoplastics, thermosets and biopolymers; the stock forms (sheet, film, board, granule, resin) that the graphic designer actually buys; the properties that decide a choice; the named polymers from PET to PLA and from PVC to epoxy resin and what each is used for; and the environmental questions that now shape every polymer decision. The named materials are the heart of the syllabus, so each one is given a clear identity, property and use.
Objectives
- demonstrate knowledge of polymers, including biopolymers, and understand their classification, stock forms, properties, environmental impact and uses
- demonstrate knowledge of thermo polymers, for example: - nylon - low- and high-density polyethylene (LDPE and HDPE) - polyethylene terephthalate (PET) - polyvinyl chloride (PVC) (including self-adhesive vinyl) - acrylic (PMMA) - polystyrene (PS) - polypropylene (PP) - acrylonitrile-butadiene-styrene (ABS) - polylactic acid (PLA)
- demonstrate knowledge of the following thermosetting polymers: - polyester resin - epoxy resin.
Lesson Note
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Lesson Evaluation
Congratulations on completing the lesson on Polymers. Now that youve explored the key concepts and ideas, its time to put your knowledge to the test. This section offers a variety of practice questions designed to reinforce your understanding and help you gauge your grasp of the material.
You will encounter a mix of question types, including multiple-choice questions, short answer questions, and essay questions. Each question is thoughtfully crafted to assess different aspects of your knowledge and critical thinking skills.
Use this evaluation section as an opportunity to reinforce your understanding of the topic and to identify any areas where you may need additional study. Don't be discouraged by any challenges you encounter; instead, view them as opportunities for growth and improvement.
- Which statement correctly describes a thermosetting polymer? A. It can be softened and reshaped many times B. It sets hard once and cannot be remelted C. It is always made from plant sources D. It is the easiest type of polymer to recycle Answer: B
- Which polymer is most commonly used for clear, lightweight drinks bottles? A. PVC B. HDPE C. PET D. Polyester resin Answer: C
- Self-adhesive vinyl used for vehicle graphics and shop-window signs is a film made mainly from which polymer? A. Acrylic (PMMA) B. PVC C. LDPE D. ABS Answer: B
- Which property of polypropylene makes it ideal for the living hinge in a document folder? A. Optical clarity B. High melting point C. Resistance to repeated flexing (fatigue resistance) D. Electrical conductivity Answer: C
- Which statement about the biopolymer PLA is correct? A. It is made from crude oil B. It is renewable and compostable only in industrial conditions C. It cannot be used in 3D printing D. It biodegrades quickly in any environment including the sea Answer: B
Available on the Green Bridge App
Download the Green Bridge CBT app on your phone or computer to access full lesson notes, practice questions, and more.
Available on the Green Bridge App
Download the Green Bridge CBT app on your phone or computer to access full lesson notes, practice questions, and more.
Recommended Books
Practice Mock Questions
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