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What are the 2 groups of plastic?
Flexi-polymer and ballistic
What year was plastic bubble wrap invented?
In 1957 by two engineers, Alfred Fielding and Marc Chavannes
How is bubble wrap made?
Step one: Get a large sheet of plastic over a layer of metal with holes in it. Step two: Let the metal with holes suck on the plastic making the holes. step three: Put a hot layer of plastic over it smelting it together. tada!!!
How can a metal film be applied to a plastic product?
There are two ways; 1) Plastics can be metalized on the surface by the process of vacuum metalizing, in which metal filaments are vaporized on to the plastic surface and the condensed in a vacuum chamber. 2) Sputtering, the metal is ionized in a vacuum chamber by an electrical discharge between two electrodes, a metallic cloud forms inside the chamber and fogs the plastic parts with a thin layer of metal .
What are the 2 man-made materials?
There are many man-made materials. Two of them include plastic and paper. Plastic and paper is used for everything from soda containers to toothbrushes and paper is used for wrapping, containers, and in business.
What are two groups plastic can be divided in?
Agronastic plastic and Gangro Plastic
What are the 2 groups of plastic?
Flexi-polymer and ballistic
Name two plastic groups related to heat and moulding plastics?
Two common plastic groups used for heat and moulding plastics are thermoplastics, which can be melted and remoulded multiple times through heating and cooling processes, and thermosetting plastics, which undergo a chemical change during moulding and cannot be remelted or reshaped after the initial moulding process.
When members of two separated groups of a population can no longer interbreed the two groups are members of different?
when members of two separated groups of a population can no longer interbreed, the two groups are members of different what
What two groups are cereals are classified into?
Cereal can be classified into two groups: prepared and cooked.
What are two major groups of minerals?
what are the two major groups of minerals
What are the two types of plastic?
the two types of plastic catagorys are dine and ringed .
What are two major groups of christians?
Two major groups are Catholics and Orthodox.
Who divides a group of data into two groups?
Jack divides his groups into two.
What are two main groups of carbohydrate?
The two main groups of carbohydrates are starch and sugars.
What comes in groups of two?
Pairs come in groups of two, such as shoes, gloves, or eyes.
All animals can be placed in one of two groups what are the two groups?
Vertebrates and invertebrates.
