PLASTIC


Plastics are excellent materials with unique and very useful properties. You can produce just about anything you can imagine using plastics.

01-Plastics-food-containers-durable plastic products-plastic boxes

Characteristics of Plastics

01-plastics-characteristics of plastics-plastic parts-various plastic products

History Of Plastics:

1. Before Plastics—Age of the Natural Resins

  • Rubber—Tough elastic substance (light cream or dark amber
    colored) from the milky juice (sap) of rubber tree
  • Ebonite—Hard black rubber; natural rubber + sulfur
  • Gutta-Percha—Dark brown substance like natural rubber
  • Shellac—dark-brown material from lac insects

2. Bakelite—The First True Synthetic Plastics

  • Leo Hendrik Baekeland invented Bakelite from coal
  • Bakelite helped make 20th century “The Age of Electricity”

01-Reaction to produce plastics-plastic formation-industrial plastic manufacturing-plastic production methods3. Industrialization of Major Plastics

Year Type of plastics Note
1872 Celluloid (Hyatt, USA) Semi-synthetic
1910 Phenolic resin, “Bakelite” (Baekeland, USA) From coal
1931 Polymethyl methacrylate (PMMA) (Rohm and Haas, Ger-many) From coal
1935 Polyvinyl chloride (PVC) (IG Farben, Germany) From coal
1935 Polystyrene (IG Farben, Germany)

From oil

1938 Nylon 6 (IG Farben, Germany)
1939 Nylon 66 (DuPont, USA) From coal
1939 High-pressure low-density polyethylene (LDPE) (ICI, Eng-land)
1953 Polyethylene terephthalate (PET) (DuPont, USA)
1953 Low-pressure high-density polyethylene (HDPE) (Montecatini, Italy) Ziegler catalyst
1955 Medium-pressure high-density polyethylene (HDPE) (Phillips, USA) Phillips catalyst
1957 Low-pressure high-density polyethylene (HDPE) (Hoechst, Germany) Ziegler catalyst
1959 Polypropylene (Montecatini, Italy)
1977 Linear low-density polyethylene (LLDPE) (UCC, USA)
1991 Metallocene very-low-density polyethylene (VLDPE) (Exxon, USA) Metallocene cata-lyst

4. Concept of High Molecular Weight Compounds & Polymers

  • Herman Staudinger, German chemist, proposed a new theory that several thousands of reactive units bonded together in chains and form giant molecules to make up cellulose and rubber
  • In 1920, Staudinger proposed calling such materials: high molecular weight compounds, macromolecules, or polymers.

5. Nylon—The First Tailor-Made Plastics

  • 1931 – Fiber 66 was produced, later called Nylon 66 in 1938
Explore posts in the same categories: MSM

Tags: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,

You can comment below, or link to this permanent URL from your own site.

6 Comments on “PLASTIC”


  1. he weblog was how do i say it… relevant, finally something that helped me. Many thanks


  2. he weblog was how do i say it… relevant, finally something that helped me. Many thanks


  3. It is a superb ideas particularly to people new to blogosphere, short and exact information… Many thanks for sharing this 1. A ought to examine write-up.


  4. It is a superb ideas particularly to people new to blogosphere, short and exact information… Many thanks for sharing this 1. A ought to examine write-up.


  5. Fantastic publish. I’m struggling with a few these issues.


  6. Fantastic publish. I’m struggling with a few these issues.


Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s


%d bloggers like this: