What is glue made from? Detailed answer

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What is glue made from? Detailed answer

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What is glue made from?

Adhesives are substances that hold things together. They are made from a variety of materials. The most modern types of sticky substances are synthetic, and they are produced from various chemical raw materials. Glue is also an adhesive, but made in a special way. Many people call all adhesives glue, although this is not entirely correct, because their manufacturing technologies differ from each other.

Glue is a sticky substance derived from collagen protein. This protein forms the basis of the tissue of ligaments of animals and fish. The main way to obtain raw materials for glue is by boiling the skins and bones of animals. The bones and skins of all animals after their death are used, including horses. From the skins one kind of glue is obtained, from the bones - another.

Man has felt the need for adhesives since ancient times. Ancient people used plant resins to hold things together. And glue of animal origin has been known for thousands of years.

The Egyptians used this glue to join wooden objects as early as 1500 BC. e. Great progress in the development of adhesives occurred in the thirties in connection with the discovery of synthetic rubber. It was more reliable and durable compared to natural substances, it was resistant to moisture, melting, and not subject to mold. (Animal glue dissolves easily in water.)

Modern synthetic adhesives are so strong that they are used to bond metal surfaces of aircraft and ships.

Author: Likum A.

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