What are the common materials around us, what are the what, what and so on

The common materials around us are:Metal, plastic, rubber, paper, woodWait a minute.

Materials are substances, but not all substances can be called materials. Fuels and chemical raw materials, industrial chemicals, food and pharmaceuticals are generally not considered materials. However, this definition is not so strict, such as explosives, solid rocket propellants, and are generally called "energetic materials" because they are part of artillery or rockets.

Because of the variety, there is no uniform standard for classification. In terms of physical and chemical properties, it can be divided into metallic materials and inorganic non-metallic materials.

Composite materials composed of organic polymer materials and different types of materials.

In terms of use, it is divided into electronic materials, aerospace materials, nuclear materials, building materials, energy materials, biological materials, etc. The two most common classifications are structural and functional materials.

Classification of materials:

From the physical and chemical properties:

It can be divided into metallic materials, inorganic non-metallic materials, and polymer materials.

In terms of use

It can be divided into electronic materials, aerospace materials, nuclear materials, building materials, energy materials, biological materials, etc.

Classification by location:

It is to classify materials according to the use of materials in the space, such as interior wall materials, exterior wall materials, ceiling materials, floor materials, etc. But once this division was established, we came across a material that could be used both indoors and outdoors. Indoors, a material can be used on the floor, wall, or ceiling, such as stone, paint, etc.

If a stone chip is attached to the ceiling, wall, or floor, people will question the classification of some materials. From this point of view, if we want to distinguish the materials clearly, we can only distinguish them from the essence and chemical composition of the materials.

Metal, plastic, rubber, paper, woodMetals mainly include steel, stainless steel, copper, aluminum alloy, etc.

Metal, paper, wood, rubber and plastic, steel, iron, aluminum,

There are so many common materials in life, such as metal, plastic, wood, glass, paper, cloth, and so on.

1. Timber is widely used in building houses. Interior decoration, interior doors, solid wood bed cabinets, tables and chairs, etc.

2. The manufacturing of various industries is inseparable from metal materials. The manufacture of automobiles, ships, trains, airplanes, motorcycles, electric vehicles, etc., and even spaceships, aircraft carriers, rockets, missiles, etc., are inseparable from composite metal materials such as steel and aluminum alloys. The construction of high-speed railways, bridges, high-rise houses, etc., is inseparable from metal materials.

3. Steel structure materials are widely used in the construction industry. Aluminum alloy metal material, aluminum instead of wood, green environmental protection, zero formaldehyde, widely used and home decoration, welcomed by users. Pots and pans, cups, pots, barrels and tubes used in daily life are inseparable from metal materials and plastics.

4. Plastic is a powerful assistant in life. Our toiletries, school stationery, lamps, utensils, as well as televisions, washing machines, computer housings, etc., are inseparable from plastic.

The popularization of plastics, known as the White Revolution, is listed as one of the greatest inventions of the 20th century.

Plastics, while bringing convenience to life, white pollution is becoming more and more serious, bringing great damage to the environment and landscape. Agricultural films have made a great contribution to increasing agricultural production. However, the agricultural film is not easy to decompose, causing damage to the soil and leaving hidden production hazards.

At the same time, plastic bags are flying all over the sky. The littering of plastic waste pollutes the environment and pollutes the oceans. Significant damage to marine life.

Plastic is the fundamental way to solve pollution. Garbage sorting, don't litter, start with me. Protecting the environment is everyone's responsibility.

Metal, glass, paper, wood, plastic, etc. ......

Common materials in life are metal, glass, paper, wood, plastic, etc. Most of the cooking utensils are metal products. Metal is a substance with lustrous (i.e., strong reflection of visible light), malleable, easy to conduct electricity, heat and other properties.

It refers to the fact that there are materials in nature that can be used directly without processing or basically no processing. Such as cotton, sand, stone, silk, coal mine, petroleum, iron ore, flax, wool, leather, clay, graphite, etc. Classification (1) Natural metal materials, almost only natural gold; (2) Natural organic materials, including wood, bamboo, grass and other materials from the plant kingdom and leather, fur, horns, bones and other materials from the animal kingdom.

These are all categories that human beings are willing to use and have high use value; (3) Natural inorganic materials, including marble, granite, clay, etc. According to the generation conditions, natural stone has magmatic rocks, sedimentary rocks, and metamorphic rocks according to geological classification.

Among the three materials of wood, metal and plastic, who has the greater degree of bending, which shows who is more flexible?

Too much! It depends on your needs. For example, the ingredients used for cooking, the building materials used for building a house, and the decoration are used. Cloth for making clothes, paper, pens and ,.. for studyingWait a minute. are collectively referred to as materials.

Common materials are stainless steel, cast iron, zinc, aluminum, and copper.

1. Stainless steel.

Stainless steel is an alloy made of chromium, nickel and other metal elements in the steel, and its non-rusting characteristics are the composition of chromium in the dry alloy, and chromium forms a solid chromium oxide film on the surface of the alloy with self-healing ability, which is invisible to our naked eyes.

2. Cast iron. The main reason why cast iron has such a large number and wide range of uses is because of its excellent fluidity and its ease of pouring into various complex forms. Cast iron is actually the name given to a mixture that is made up of a combination of elements, and they include carbon, silicon, and iron.

The higher the carbon content, the better its flow behavior during the pouring process, and carbon is found here in both graphite and iron carbide forms.

3. Zinc. Zinc, with its silver glimmer and a slightly blue-gray tinge, is the third most widely used non-ferrous metal after aluminum and copper. Zinc has a very low melting point, so it is also a very desirable casting material.

Zinc castings are very common in our daily life: the materials under the surface of the door handle, the faucet, the electronic components, etc., zinc has a high corrosion resistance, which makes it have another basic function, that is, as a surface coating material for steel.

4. Aluminum. A number of new products for its unique functions and characteristics are gradually coming out, and aluminum has gradually become more and more widely available, although the application history of aluminum is relatively short, but now the output of aluminum products on the market has far exceeded the sum of other non-ferrous metal products. The material characteristics are flexible and plastic, easy to make alloys, high strength, weight ratio, excellent corrosion resistance, easy electrical and thermal conductivity, and can be used.

5. Copper. Copper is an excellent conductor of electricity, second only to silver in conductivity, and copper is the oldest metal used by human beings after gold. This is due in large part to the fact that copper ore is easy to mine and that the copper industry is relatively easy to separate from copper ore.

Copper has good corrosion resistance, excellent thermal and electrical conductivity, hardness, flexibility, ductility, polishing, and unique effect.

Common wood

1. Naturalness.

Wood is a kind of natural material, in the human commonly used steel, wood, cement, plastic four main materials only it is directly taken from nature, which makes wood has the characteristics of low production cost, low energy consumption, non-toxic, non-polluting and so on.

2. Good texture.

Wood has good tactile properties that are easily acceptable and far superior to materials such as metal and glass.

3. High strength-to-weight ratio.

Wood has a certain strength-to-weight ratio that is higher than that of general metals, making it a lightweight and high-strength material.

4. Heat retention.

The thermal conductivity of wood is very small, compared with other materials, the thermal conductivity of aluminum is 2000 times that of it, and the thermal conductivity of plastic is 30 times that of it, so wood has good thermal insulation properties.

5. Electrical insulation.

The point conductivity of wood is poor, and it is a good electrical insulating material.

6. Machinability.

The wood is moderately soft and hard and easy to process.

7. Decorative.

Wood itself has a natural and beautiful pattern, as a furniture and decoration material, it has a very good decorative property, and has some unique characteristics of wood.

1. The characteristics of plastic: light, many colors and smooth. 2. Characteristics of metal:

It is shiny, unbreakable, and rusty. 3. Characteristics of wood: yellow, striped, can float on water.

4. The characteristics of rubber: elastic. 5. Characteristics of glass:

Transparent, smooth, reflective, and fragile. 6. The characteristics of fiber: soft and can be used to make clothes.

7. Characteristics of ceramics: heavy, brittle and smooth. <>

<>1. Metal: Metal is widely present in nature, and is extremely common in life, and is a very important and most widely used substance in modern industry.

2. Glass: The main components are silica and other oxides, which are widely used in buildings to block wind and light, and belong to the mixture.

3. Paper: It is made of raw materials containing plant fibers through pulping, modulation, copying, processing and other processes, and can be used for painting, printing books and newspapers, packaging, etc.

4. Wood: It generally refers to the wooden materials used in industrial and civil construction, which are usually soft and hard materials, and the wood used in the project is mainly taken from the trunk part of the tree.

5. Plastic: It is a polymer compound made of monomer as raw material and polymerized by polyaddition or polycondensation reaction, with medium deformation resistance, between fiber and rubber, and is composed of synthetic resin and fillers, plasticizers, stabilizers, lubricants, pigments and other additives.