Busy. Please wait.

Forgot Password?

Don't have an account?  Sign up 

show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.

By signing up, I agree to StudyStack's Terms of Service and Privacy Policy.

Already a StudyStack user? Log In

Reset Password
Enter the email address associated with your account, and we'll email you a link to reset your password.

Remove ads
Don't know (0)
Know (0)
remaining cards (0)
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards

Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Plastics Systems

Post Test - Plastics

Polymer A large, many unit molecule made up of thousands of monomer, single unit molecules linked together like a chain.
Synthetic Plastics Man-made by taking atoms and molecules from natural materials such as coal, natural gas, oil, plant fibers, air, water, and salt, and rearranging them.
Thermosetting Plastics Plastics that are set in a permanent shape during molding. The material will not soften when re-heated.
Molding Compounds Plastics delivered to manufacturing industries in the forms of powders, pellets, or granules. Used in injection, extrusion, and blow molding.
Lamination Plastic forming process that involves joining two or more layers of plastic material to form a single composite sheet using pressure.
The properties of plastics can be altered or improved by _____. changing chemical formulation, combining several plastics
Some of the first plastics used by humans: clay, tree sap, glass
Require the greatest amount of plastics. Construction, packaging, automotive, electronics, and appliances
Variables to consider when thermoforming plastic. type, thickness, temperature
sprue hole hot soft plastic is injeted into the mold through this hole
Developed in 1909, 1st synthetic plastic Bakelite
Created by: SCullum