What are polymers in design technology?
What are polymers in design technology?
Most polymers are synthetic, meaning they are man-made and have been designed by chemical engineers . Different polymers are created all the time so that the demands of the consumer can be met. Polymers fall into two categories: thermoforming plastic or thermoplastic.
What are polymers GCSE?
Polymers are very large molecules made when many smaller molecules join together, end to end. The smaller molecules are called monomers. In general: lots of monomer molecules → a polymer molecule. The polymers formed are called addition polymers.
Where do polymers come from GCSE?
Most polymers are obtained from crude oil often found deep within the Earth’s crust .
How are polymers made GCSE?
Polymers have very large molecules. They are formed when many small molecules join together. This process is called polymerisation. When alkenes join together to form a polymer with no other substance being produced in the reaction, the process is called addition polymerisation.
How is plastic made GCSE?
Polymerisation process Some small molecules, called monomers, can join together to make very long molecules, called polymers – this process is called polymerisation. Many polymers are made from chemicals obtained from crude oil, eg molecules of ethane can join together to make polythene.
What are specialty polymers?
Description. Specialty polymers and resins are proprietary polymers, resins, monomers, and intermediates. They include products that are based on proprietary curing technologies or chemistries, or that are designed for specialized applications.
What is the common name for polymers?
Addition Polymers
| Chemical Name | Trade Name or Common Name |
|---|---|
| polyethylene | |
| poly(tetrafluoroethylene) | Teflon |
| polypropylene | Herculon |
| polyisobutylene | butyl rubber |
How are polymers formed GCSE?
What are the properties of polymers GCSE?
Properties of polymers
| Polymer | Properties | Uses |
|---|---|---|
| Low density poly(ethene), LDPE | Flexible, unreactive, can be made into films | Most carrier bags, bubble wrap |
| High density poly(ethene), HDPE | Strong, flexible, resists shattering, resists chemical attack | Plastic bottles, pipes, buckets |
What are polymers made from?
Polymers are large molecules GLOSSARY moleculesa group of atoms bonded together . They’re made from a number of smaller molecules known as monomers. ‘Poly’ means many, and ‘mer’ means part—so polymer means many parts.
Are polymers man-made?
Most polymers are synthetic, meaning they are man-made and have been designed by chemical engineers. Different polymers are created all the time so that the demands of the consumer can be met. Polymers fall into two categories:
Can I use images from this site in my GCSE project?
THE NEW DESIGN AND TECHNOLOGY GCSE V.Ryan © 2017-2020 COPYRIGHT STATEMENT Students can use images from this site in their projects, when a clear reference is made and use referenced quotes from the site.
What types of polymers are used in schools?
These polymers are also often referred to simply as ‘thermoplastics’. A popular polymer to use in schools is acrylic. This can be heated and bent using a line bender and, as it is a thermoforming polymer, it can then be reheated and reshaped.
Why are aesthetic considerations important when choosing a polymer?
When selecting materials, aesthetic considerations are of vital importance – the way a polymer looks and feels can be altered in its creation by changing the polymer mix. There is possibly a near infinite selection of polymers, with new ones being created to meet new demands.