What is the difference between lacquer and lacquer, and what kind of lacquer is lacquer

Lacquer is made from the lacquer tree.

on the cut down of the liquid. It is composed of urushiol, laccase, gum and other three elements, and cohabits natural water.

1.The bathing properties of lacquer.

The front plate fraction (solid content) of raw lacquer is large wood lacquer.

About % of the intestines above, small wood paint.

About 70% or more, oil paint about 80% or more. The score of the lacquer frying pan can be judged from the color and silk head of the lacquer, and it can be verified with the frying pan.

The dryness of lacquer is divided into two types: raw dry and cooked dry.

Cooked lacquer is a raw lacquer that has been dehydrated by sun or heating and contains less moisture. Color: brownish-black. Adhesion to metal is improved due to dehydration, making the paint film brighter and more durable. It is used for the preparation of other natural lacquers and the painting of metal and wood surfaces.

Chengdu Meixing Craft Paint Factory Tips: Natural lacquer: also known as (Chinese lacquer, lacquer, national lacquer, natural lacquer, soil lacquer, lacquer), is an excellent natural lacquer, natural lacquer is a natural lacquer tree in the primeval forest, the lacquer emulsion juice (natural lacquer) that flows naturally from the phloem after cutting the lacquer bark with a metal knife is artificially cut, the film-forming substance is urushiol, and the volatile is water, which is green and environmentally friendly paint.

wooden coffins and lacquer paintings buried underground for thousands of years; lacquerware; The physical evidence of furniture and ancient buildings and temples illustrates the superiority of its paint film such as moisture-proof, anti-corrosion, weather resistance, high hardness, and non-toxic and harmless to the human body after the paint film dries. It is the king of green paint in human life forever.

The film-forming substance of chemical paint is chemical synthetic resin, which volatilizes benzene, lipid, ether and other organic solvents, which are harmful to the human respiratory tract and lungs, and pollute the environment and atmosphere. In the interior decoration, you should try to choose environmentally friendly and non-toxic products, and it is most important to protect your own health!

**:Raw lacquer. China.

Raw lacquer, that is, natural lacquer, commonly known as earth lacquer, also known as national lacquer or lacquer. It is a milky gelatinous liquid harvested from a lacquer tree, which turns brown when touched by the air, and then withers and hardens after a few hours to produce patent leather. The economic value of raw lacquer itself is very high, with corrosion resistance, wear resistance, acid resistance, solvent resistance, heat resistance, water insulation and good insulation, glossy and other characteristics, is the military industry, industrial equipment, agricultural machinery, capital construction, handicrafts and folk reputation for furniture and other excellent coatings.

It is also one of the main materials of China's traditional exports, and is famous for its quantity and quality.

The characteristics of lacquer touch the god section

Because the molecular structure of urushi contains aromatic hydrocarbons and aliphatic long side chains, the molecular structure of urushi contains aromatic hydrocarbons and aliphatic long side chains, so urushiol has the dual characteristics of aromatic and aliphatic groups, and urushiol multimers are formed under the catalytic oxidation of laccase, coupled with the oxidative polymerization reaction of long side chains, and a network three-dimensional structure is formed. Therefore, it has excellent physical and chemical properties.

1. Excellent durability.

The durability of the lacquer film has long been confirmed from the unearthed cultural relics, such as the coffin and lacquerware of the Western Han Dynasty unearthed in Mawangdui, Changsha, Hunan Province in 1972 for more than 2,000 years, and the lacquer film is so bright and complete, which fully proves that the lacquer film is resistant to water and moisture.

2. Excellent corrosion resistance of chemical agents.

The paint film of raw lacquer has outstanding properties such as acid resistance, salt resistance, oil resistance, and organic solvent resistance, and is an excellent corrosion-resistant coating.

3. Good wear resistance.

The varnish film is wear-resistant. It can be polished, which is determined by the structure of urushiol, which is wear-resistant due to its good rigidity and high hardness due to the presence of benzene nuclei.

4. Good heat resistance.

The lacquer film can be used for a long time at less than 150 meters, and can reach 200 instantly. If heat-resistant pigment fillers are added, the heat-resistant temperature of the paint film can also be improved.

5. Good electrical insulation performance.

The lacquer film has excellent electrical insulation properties, and can still maintain good electrical insulation properties under high temperature and high humidity, and its insulation properties can be maintained in the best state even in water.

6. The shortcomings of raw lacquer film.

The raw lacquer film is less flexible and brittle; The impact resistance is poor, and it can only reach 30cm; Poor alkali resistance of raw lacquer film; In addition, the weather resistance is poor, and it is easy to lose light, crack and age under sunlight, because ultraviolet rays can break the carbon bonds of urushiol, and the polymer structure is degraded and destroyed. Therefore, the amount of lacquer used is gradually reduced, and modified lacquer phenolic products are mostly used.

Categories: Science & Engineering.

Parse: Encoded as ***

It belongs to the sap of plants.

and opium are an item.

Of course, the import of opium is prohibited in our country.

Lacquer Lacquer, also known as wood lacquer, soil lacquer, and national lacquer, is a natural coating of milk sweat cut from the bark of the lacquer tree. It is a natural secretion in the metabolic process of the lacquer tree, which is white at the beginning of the outflow, and because it is easy to oxidize, its oxidized epidermis is often seen in the manuscript, which is black.

Lacquer has the characteristics of acid resistance, alkali resistance, high temperature resistance, corrosion resistance, rust resistance, moisture resistance, radiation resistance, insulation and other characteristics, and is widely used, and is known as the king of coatings. Raw lacquer is used for lacquer handicrafts, wooden furniture, ancient buildings, not only the paint surface is smooth and clean, anti-corrosion and heat-resistant, durable, and the tone is deep and stable, rich in oriental national style. In industry, lacquer is an indispensable coating for enameled wires for submarine cables and electrical appliances, and it is also an anti-corrosion and anti-rust coating widely used in shipbuilding, petroleum, chemical and metallurgical industries.

Lacquer is a well-known native product in China, and it is also a traditional export commodity. According to expert research, China's lacquer cultivation has a long history, and the production of lacquerware originated more than 4,000 years ago. At present, the distribution of lacquer trees in China is mostly in Shaanxi, Hubei, Sichuan, Guizhou, Gansu, Yunnan, Henan and other provinces.

Yunnan Province lacquer production area throughout 13 prefectures, prefectures, cities in more than 50 counties, of which Zhaotong area has the largest output, Zhenxiong County has the best quality. Yunnan lacquer has been exported in history. At present, it is mainly domestic, and it is far from being able to meet the needs of all aspects.

Lacquer is a natural lacquer cut from a tree, and it is a treasure given to humans by nature. Lacquer is also known as national lacquer, lacquer, earth lacquer, wood lacquer, gold lacquer, etc., and raw lacquer is called "Chinese lacquer" in foreign countries.

Lacquer, commonly known as "earth paint", also known as "national lacquer" or "lacquer", it is a milky white pure natural liquid paint cut from the lacquer tree, which gradually turns brown after contact with air, and the surface dries up and hardens in about 4 hours to form a paint film.

The economic value of lacquer is very high, with corrosion resistance, wear resistance, acid resistance, solvent resistance, heat resistance, water insulation and good insulation, rich gloss and other characteristics, is a high-quality coating for military industry, industrial equipment, agricultural machinery, capital construction, handicrafts and high-end furniture.

It is also one of the important materials of China's traditional exports, and is known for its quantity and quality.

1. The ingredients are different.

Raw lacquer is baked in the sun or at low temperature under stirring, oxidative polymerization, and a part of the water is removed. The water content is about 6% 8%, and the color is purple-red or dark brown.

Lacquer is a milky white pure natural liquid paint harvested from the lacquer tree, which gradually turns brown after contact with air, and the surface dries up and hardens for about 4 hours to form a paint film.

2. The application is different.

If pigments are added to cooked lacquer, it can be made into various color paints.

Raw paint can be used as an excellent preservative The anti-corrosion performance of raw paint has a good anti-corrosion effect on wood, houses, appliances, steel, pipes, vehicles and ships, etc. These utensils are often exposed to sunlight, wind and rain, humidity, turbidity of seawater, and oxidation with air, and are prone to decay. rust and weathering, coated with lacquer can play a protective role.

3. The characteristics are different.

The cooked paint film has excellent electrical insulation properties, and can still maintain good electrical insulation properties under high temperature and high humidity, and its insulation performance can be maintained in the best state even in water.

The lacquer film can be used for a long time at less than 150 meters, and can reach 200 instantly. If heat-resistant pigment fillers are added, the heat-resistant temperature of the paint film can also be improved.

Resin and lacquer are both coating materials, and the differences between the two are as follows:1The composition of the materials is different:

The resin is mainly composed of synthetic resin, additives and solvent trillion rental mold, which is mainly used in various coating types, such as coatings, inks, etc. Lacquer, on the other hand, is made by mixing plant secretions, such as pine resin, sumac, paint tree, etc., with mineral materials.

2.Different uses: resins are widely used in coatings, inks, adhesives and other fields to increase product adhesion, wear resistance, gloss and other properties; Raw lacquer is mainly used in painting, printing and dyeing and other fields, to paint furniture, family electrical appliances, automobiles, bridges, etc.

3.Different reactivity properties: resins are commonly found in thermosetting resins and thermoplastic resins, where their molecules have a linear or reticular structure, and the molecules are chemically bonded and do not dissolve easily once dried.

Lacquer, on the other hand, is a natural resin with unsaturated double bonds in its molecules, which is prone to oxidation in the air, slowly turns into a solid state, and continues to react to promote drying and curing.

4.There is a difference in cost and **: resin is a kind of chemical material development, the production cost is higher, and the finished product is more expensive than raw paint.

In short, although resin and lacquer are both coating materials, they are quite different, mainly in terms of composition, use, reaction characteristics and **.