Plastics by the numbers
This presentation is the property of its rightful owner.
Sponsored Links
1 / 10

Plastics by the Numbers PowerPoint PPT Presentation


  • 153 Views
  • Uploaded on
  • Presentation posted in: General

Plastics by the Numbers. Recycling plastics, types of plastics, and the sorting of plastics. One Word: Plastics. What comes to your mind when you hear the word plastic? How often do you use plastic water or soda bottles? http://www.youtube.com/watch?v=5-wq9ZCQp4U.

Download Presentation

Plastics by the Numbers

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Plastics by the numbers

Plastics by the Numbers

Recycling plastics, types of plastics, and the sorting of plastics


One word plastics

One Word: Plastics

  • What comes to your mind when you hear the word plastic?

  • How often do you use plastic water or soda bottles?

  • http://www.youtube.com/watch?v=5-wq9ZCQp4U


How many types of plastics are there

How many types of plastics are there?


Plastics by the numbers1

Plastics by the Numbers

  • Work in pairs with equipment at work station

  • SAFETY!

    • Acetone is FLAMABLE! Keep away

      from the hot plate

    • Wear safety goggles at ALL times

    • Wear gloves when handling

      acetone

    • Wash hands after handing acetone

    • Keep distance when boiling water

    • Don’t drink ANYTHING


After the lab

After the Lab

  • After you and your partner have completed the last table in the lab:

    1. Clean up station

    • Dispose of plastic and oil in garbage

    • Dispose of water and acetone in drain

      2. Get started on worksheet until all groups are done

    • (Will be homework if not completed in class)


After lab discussion

After-Lab Discussion

  • Which test did most of you decide to do first? Why?

  • Least amount of steps?

  • How might the properties of these plastics affect their uses or safety?


Diverse properties

Diverse Properties

  • Properties affect the use and safety of each plastic type

    Plastics to avoid:

  • Polyvinyl chloride (PVC)

    • considered the most damaging of all plastics

    • releases carcinogenic dioxins into environment when manufactured

  • Polystyrene (PS)

    • can leach styrene, a possible

      human carcinogen


Safer plastics

Safer Plastics!

  • PET, or polyethylene terephthalate

    -considered among the safest plastics

    -but still not safe to use for water bottles!

  • High-Density Polyethylene (HDPE)

    • Used in some reusable sports bottles,

      but still leak some chemicals!

      WHAT DO YOU THINK THE BEST CHOICE FOR A WATER BOTTLE IS?


What can plastics be recycled into

What can plastics be recycled into?


How are plastics sorted before recycling

How are plastics sorted before recycling?

  • Still no good way other than manually

  • Till the end of the class period, work on a classification key with you partner to give to the workers at the recycling facility that would help them to easily classify unmarked plastics. You can work on it together, but make sure you are doing your own!

  • Keep in mind the characteristics of a good classification key that we talked about earlier!

  • Use the paper provided

  • Will be due, with the worksheet, at the beginning of class on Monday

  • Extra credit: Type a paragraph about a new technique or invention that are currently being implemented to aid in the SORTING of plastics


  • Login