Chemistry 30 Class

Chemistry 30 Class

By Eastlyn Appleton & ClassEducationNatural Sciences
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Chemistry 30 Class episodes

  • Sarah: Hockey Helmets

    Throughout the last 60 years the goal tenders mask that is used now in professional hockey around the world has evolved tremendously. From a  basic carbon fibre front face to shield, to now a whole head protected helmet with a cage, advancements of technology lead to a near perfect piece of equipment. Trial and error was a big use in perfecting a goalie mask, by discovering what materials break easy, and what can withstand these hard hockey shots. The main attraction of these masks, the art work, has also evolved greatly. From starting out with just a plain marker drawing of a stitch, to now a whole colourful design of pictures and symbols, the uniqueness of a players mask has became a special piece in each NHL clubs history.

    Here is also a link to a couple videos about the history of they hockey mask.

     

    https://www.youtube.com/watch?v=Y_lBZiG–BE

     

    https://www.youtube.com/watch?v=yMbXU4njAw4

     

    8 min
  • The Declan Show: Carbon Nanotubes

    Hey everyone and welcome to ‘The Declan Show’, where I fill your minds with a whole lot of facts, research and science!

     

    Today I will be talking to you about Carbon Nanotubes, a new revolutionary technology that has a tonne of great uses!

     

    You may be asking “what is a Carbon Nanotube?”…well let me tell you!

    11 min
  • Kat’s Episode Lethal Dose Learning: Nanocellulose

    In this episode we learned about how nanocellulose was discovered and made, how we can implement it into the things around us and how much it would cost!

     

    Cool sites!

    A quick explained video: https://www.youtube.com/watch?v=oQCT9KxJLOo

     

    References

    2017 Cellulose Lab Nano & Micro Products Price. (2017). Retrieved from https://www.celluloselab.com/CelluloseLab%20Product%20Price%20List%202017.pdf

     

    Carlmark, A. (2017). Nanocellulose – Innventia. Innventia.com. Retrieved 26 October 2017, from http://www.innventia.com/en/Our-Expertise/New-materials/Nanocellulose/

     

    Condliffe, J. (2017). 7 incredible uses for nanocellulose. Gizmodo.com. Retrieved 26 October 2017, from https://gizmodo.com/5994113/7-incredible-uses-for-nanocellulose

     

    Dufresne, A. (2017). Nanocellulose: a new ageless bionanomaterial. science direct. Retrieved 26 October 2017, from http://www.sciencedirect.com/science/article/pii/S1369702113001958

     

    khan, a., huq, t., khan, r., riedl, b., & lacroix, m. (2017). Nanocellulose-Based Composites and Bioactive Agents for Food Pack…: Ingenta Connect. Ingentaconnect.com. Retrieved 26 October 2017, from http://www.ingentaconnect.com/search/article?option1=tka&value1=nanocellulose&pageSize=10&index=5

     

    rouhiainen, j. (2011). toxicological safety assessment of nanocellulose. SUNPAP workshop. Retrieved from http://sunpap.vtt.fi/pdf/4_sunpap_seminar_presentation_m4.pdf

     

    Turbak, D. (2017). Birth of Nanocellulose. Naylornetwork.com. Retrieved 26 October 2017, from http://www.naylornetwork.com/PPI-OTW/articles/?aid=150993&issueID=22333

     

    7 min
  • Jessica: Evolution of the Track

    The sport, Track and Field has been around since the early B.C. times. Tracks people have used have been made out of dirt, grass, sand, cinder, and synthetic polyurethane. Polyurethanes have been around since the 1930’s. They were invented by Dr. Otto Baye. Polyurethanes are non hazardous, but the process creating them can be. Isocyanates and polyols emit harmful vapours. Polyurethane can be recycled. The cost of a track can be anywhere from $400 000-1.5 million. They do need to be replaced every so often, depending how they hold up against the weather. These tracks are used because they are better for athletes, create better running times, and can be used in any weather. Although there has been some changes to the track over time since the early B.C. age, the design has always stayed the same. Only the materials have changed.

    Bibliography

    Unknown (2017). Wikipedia. Polyurethane. Retrieved September 16, 2017, from https://en.wikipedia.org/wiki/Polyurethane


    Unknown (2017). Athletic Scholarships. Track and Field History and the Origins of the Sport. Retrieved September 16, 2017, from http://www.athleticscholarships.net/history-of-track-and-field.htm


    Unknown (2017). BSW. What is a tartan track? Retrieved September 16, 2017, from
    https://www.berleburger.com/en/products/sports-flooring-impact-protection-outdoor-facilities/regupol-tartan-running-tracks/what-is-a-tartan-track/


    Unknown (2012). Synthetic vs Natural Athletic Tracks. Synthetic vs Natural Athletic Tracks. Retrieved September 16, 2017, from http://sportsbyapt.com/synthetic-natural-athletic-tracks/


    Unknown (2017). Wikipedia. Cinder Track. Retrieved September 23, 2017, from https://en.m.wikipedia.org/wiki/Cinder_track


    Unknown (2017). Polyurethanes. Environmental Responsibility. Retrieved September 23, 2017, from http://polyurethanes.org/en/sustainability/sustainable-development/environmental-responsibility


    Unknown (2017). Polyurethanes. History. Retrieved September 30, 2017 from

    9 min
  • Shelbey: The Evolution Of Tack And New Materials Used to Make Them

    Tack Evolution

    1. History of the Saddle
      • As early as 4000 BC
      • Bareback- fringed cloths/pads (Assyrian Calvary- 700 BC) with girth
      • Had tree before stirrups
      • Each country had their own style (German- sidesaddle, English, Western)
      • Where Saddles Originated
        • People rode bareback since domestication- first invented by Sarmations (365 AD)
        • Developed to support in warfare
        • Designs branched to English and western mostly
        • How to Make Leather Saddles
          • Saddle tree prolongs useful life of horse
          • Leather tanning undeveloped- eventually resulted in soft, durable hides
          • Functions and Status Symbol
            • Saddles as status symbol to show off riders wealth
            • Western saddle evolved into working saddle
            • Proper care can extend useful life of saddle for decades even

              •  

              Evolution of Synthetic

              1. First Synthetic Fibers
                • Invented by Joseph Swan early 1800s
                • Came from cellulose liquid
                • Formed by chemically modifying fiber contained in tree bark
                • 1885 Swan developed fabrics manufactured from synthetic material
                • Synthetic Tack Evolution
                  • Became popular material with endurance sports
                  • Synthetic can be used in just about any kind of tack
                  • Halters commonly made from synthetic
                  • How to Make Synthetic Leather
                    • Consists of petroleum-based plasticizer, ultra violet light stabilizer, flame retardant solution, powdered vinyl, dyes
                    • Poured onto paper, baked to harden
                    • Added fabric backing, mold shape, print pattern onto synthetic leather
                    • Tests: wear and tear, stretch, fire

                      •  

                      Synthetic and Leather Pros/Cons

                      1. 11 min
                      3. Kassidy: From Celluloid to Bioplastic – The Evolution of Plastics

                         

                          • Original meaning of the word plastic was “easily shaped and pliable”
                          • Now we think of the word plastic as a category of polymers made of long chains of molecules
                          • Today, synthetic polymers are made using mostly carbon atoms provided by fossil fuels
                          • Synthetic polymer chains are usually longer than the ones which are found in nature
                            • The long chains and patterns make polymers strong, lightweight, and flexible
                            • Before plastics were created materials such as tortoiseshell, horn, linen, ivory, and wood were used for different items in day to day life
                              • Expensive
                              • Began running out of these resources

                                •  

                                • HYATT’S CELLULOID

                                  •  

                                      • 1869 – $10 000 reward was offered for whoever could find a replacement for ivory
                                      • John Wesley Hyatt created celluloid with treated cellulose derived from cotton fiber, and camphor
                                      • Celluloid was easily moldable but lacked the bounce and resilience of ivory
                                      • It was highly volatile
                                      • It was inexpensive and sparked the plastic revolution, showed we are not constrained by nature

                                        •  

                                        • BAEKELAND’S BAKELITE

                                          •  

                                            • Leo Baekeland invented Bakelite
                                            • First completely synthetic plastic, contained no natural molecules
                                            • Baekeland was trying to find a replacement for shellac, a natural electrical insulator made of the excretions of the female lac beetle
                                            • It took 15000 beetles 6 months to produce one pound of shellac
                                            • Bakelite was a combination of formaldehyde and phenol
                                            • It was durable, heat resistant, and well suited for mass production
                                            • Plastic was inexpensive and greatly expanded the goods consumption of the middle class

                                              •  

                                               

                                              • 1920s AND 1930s

                                                •  

                                                    • New materials were coming from labs around the world
                                                    • Cellulose acetate was created, which was semisynthetic because plant cellulose was a base ingredient, it was adaptable like celluloid but not flammable
                                                    • Polystyrene was c
                                                      • 11 min
                                                    • Appleton’s Chemistry 30 Final Project Introduction

                                                      In this episode I explain a bit about what this podcast, what the final projects for Chemistry 30 will look like (or should I say sound like?) and give some details on what the topics of the final project will be.

                                                      Here is the Final Project booklet discussed in this episode: Research Project Criteria 2017

                                                      4 min

                                                    About Chemistry 30 Class

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                                                    Mrs. Appleton's Chem 30 class podcast.