Man-made materials, also known as synthetic materials, are materials artificially processed by chemical methods or polymerization of different substances, and their characteristics are different from raw materials, such as plastics, synthetic materials and so on.

Among man-made materials, plastics, synthetic fibers and synthetic rubber are known as the three major organic synthesis technologies of the 20th century. Their appearance has greatly improved the living standards of the people, and their importance to the national economy and people's livelihood is self-evident.

Synthetic materials are materials that are composed of two or more kinds of substances and have some comprehensive properties. It is divided into structural composite materials and functional composite materials two categories. Composite material is a new material developed with the progress of material science and technology. Composite material is a promising new material, widely used in aviation, aerospace, chemical, shipbuilding, automobile, electrical manufacturing and other industries.

Declaration: The content of this article is organized from the Internet, and the copyright belongs to the original author; If there is infringement, please inform in time and contact to delete.