On May 30, 1928, in the United Kingdom and the United States, Drew developed a very light, pressure-matching adhesive. The initial attempt was not sticky enough, so Drew was told: "Take this stuff. Take it back to your Scottish boss and ask them to put more glue!”But during the Great Depression, people found hundreds of uses for this tape, from filling up to Protecting broken eggs is very useful.
Why can tape stick things? Of course it is because it is coated with a layer of adhesive on the surface! The earliest adhesives came from animals and plants. In the 19th century, rubber was the main component of adhesives; modern times, various polymers were widely used. Adhesives can stick to things because their own molecules form bonds with the molecules of the object to be joined. This bond can firmly bond the molecules together. The composition of the adhesive varies from brand to brand and from polymer to polymer.www.snpefilm.com