Essay
UNIT 22 Learning Aim C Polymers
- Module
- UNIT 22 Learning Aim C
- Institution
- PEARSON (PEARSON)
Pearson BTEC Level 3 National Extended Diploma in Applied Science Distinction level unit 22 topic 3 polymers. Achieved distinction.
[Show more]
Seller
Follow
Content preview
Unit 22 – Topic 3Three different polymers are PVC, PMMA and nylon (6,6).
Uses Benefits Cons
PVC window frames, - good at insulation - PVC is more
drainage pipes, because of its expensive to
roofing and ceiling resistance to fire so it manufacture
systems is used in cable - PVC releases toxins
insulation. when being
- PVC is also durable produced which can
so it is useful to make cause health hazards
installations easier. e.g. asthma,
Used inside ceilings, diminished lung
walls or floors function.
- PVC is also used in - PVC is also not eco-
drainage pipes friendly because it
because they are releases carbon
resistant to high which is not
temperature and sustainable
acids and alkalis
Monomer Polymer Repeating Unit
Uses Benefis Cons
PMMA Aquariums, hockey - High gloss and - poor impact
rinks, skylights hardness resistance
- versatile - Limited heat
- durable resistance
, Uses Benefits Cons
Nylon (6,6) Clothing, fishnets, - Excellent abrasion - Fire-resistant which
Ropes and wear resistance means it can easily
- Light weight melt
- Hight tensile and - Swells and
compressive strength deteriorates rapidly
when it gets wet
Polymers are formed by chemical reaction that join lots of small molecules together to make
long molecules.
3 examples of additives -
Lubricants are an addictive that is used to reduce friction and wear between interacting
surfaces. It also prevents chains from sliding. They modify the properties of the polymers by
reducing the friction in the molding and extrusion process. Because of the line polymer chain
that is produced by the lubricant throughout the process, lubricants have a smooth PVC
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Assignment24. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £10.48. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
75632 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now