Analysis on the consumption trend of coatings in C

2022-08-24
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Analysis on the consumption trend of coatings in China

analysis on the consumption trend of coatings in China

June 7, 2002

through the comparison of relevant data, the consumption trend of domestic architectural coatings, industrial coatings and special coatings has been analyzed. For a long time, China's coating industry has counted the production and sales of coatings by resin types (i.e. 18 categories), which is similar to that of Japan and Germany, Its advantage is based on the coating film-forming material, which is very helpful for calculating the amount of resin and predicting the development of various resins, but its disadvantage is that it is unable to understand the consumption direction of coatings. As early as more than ten years ago, people of insight suggested comrades engaged in information work to investigate this topic, but they finally gave up because of the wide range of involvement and the large amount of work. In the past two years, the coating industry and related industries have often published articles to analyze the consumption direction of coatings in China, and even there are reports of "the distribution of coatings in China" in foreign journals. However, its source of information is not official, but from some people. The review data of various consumption trends are different, which is understandable, but some data are too different to meet people's wishes

the author would like to introduce the relevant data collected in recent years as follows, and try to analyze some of his own views. 1、 Reports of foreign journals an English journal listed the current distribution of Chinese paint products in the year-end bonus month of 1999: the consumption of each

door (thousand tons) Accounting for% of the total building 70043.8 corrosion protection 20012.5 ships 10

06.3 cars 603.8 home appliances 805.0 machinery 905.6 wood furniture 1207.5 railway

603.8 road signs 503.1 other 1408.8 total 1600100 2. Data of China chemical industry

news, June 16, 1999, The 5th edition of China chemical industry news published Zhang Chunling's article "China's coating industry developing synchronously with the national economy", The author collates the specific data as follows: the current consumption of departments

(thousand tons) 2000 forecast (thousand tons) ① building 500 (1998) 650 ② industry

700 ships 70 (1995) 80 machinery and electronics 100 railway vehicles 90 (199

5 years) 120 cars 100 (1996) 150 household appliances 100 steel and wood furniture 10

0 others 50 ③ special paint 300 road 70 heavy corrosion prevention/special functions/2 The current (kiloton) proportion of the author's

analysis department (%) ①building 600 43.2 interior wall 312 exterior wall 48 waterproof

57 cement floor 18 others 165 ② industry 540 wood furniture 120 38.8 automobile (OEM) 60 automobile

car repair paint 40 ships 80 containers 20 household appliances 80 machinery 60 motorcycles 8 military industry 2 railways 60 its

it 10 ③ special 250 18.0 anti-corrosion 180 high temperature paint 5 insulation paint 5 route mark 50 fire retardant paint 5

other 5 total 13904 consumption trend China's coating industry after 50 years of development, the output has ranked fourth in the world, and the product structure has entered a new era based on synthetic resin. During the "Eighth Five Year Plan" and "Ninth Five Year Plan", through joint ventures, cooperation, technology transfer and other forms, the quality of some products in the coating and industry has reached the world advanced level in the 1980s, even from the

to the 1990s. However, we should see the following gaps: ① with the loss of scientific and technological personnel in state-owned enterprises and faults, the ability of independent development shows a shrinking trend; ② Due to various reasons, a considerable number of state-owned enterprises have difficulties in maintaining the quality of coatings, leaving many high-quality equipment unused; ③ Some coating consumption departments are disturbed by various improper factors, resulting in the development of coatings not in the normal direction, but in a backward trend. Now the consumption of coatings is reviewed as follows. 4.1 architectural coatings are generally interior wall, exterior wall, waterproof, cement floor and other coatings. Among them, the internal wall

52%, the external wall accounts for 8%, and the waterproof coating accounts for 9 5%, cement floor accounts for 3%, and other architectural coatings account for about 2

7 5%。 There are many comments and introductions on interior and exterior wall coatings, but they are often difficult to gain popularity and guide the consumption. In the past decade or so, the latex paint introduced by key paint factories failed to be accepted by consumers, while the very low-grade 10

6 and 107 interior wall coatings were very popular. Nowadays, the vigorous publicity of latex paint produced by Sino foreign joint venture has led to the recovery of the entire latex paint market, but due to the limitations of national conditions, latex paint with a scrub resistance of more than 800 times can only be

sunny and snowy. The qualified products with scrub resistance of no less than 100 times and the first-class products with scrub resistance of no less than 300 times have gradually replaced 106 and 107 coatings. It seems that the promotion of civil coatings should not only meet the needs of consumers at different levels, but also be down-to-earth and hard to promote, and pay attention to some artistry and flexibility. As for exterior wall decoration, we should promote the application of exterior wall coatings with bright colors and good durability to reduce the load of buildings and change the appearance of the city. Thick paste floor coating should be promoted for cement floors in factories, and floor coatings with good pollution resistance and scrub resistance should be developed for household concrete floors, so as to reduce the load-bearing of buildings and the complexity of construction. 4.2. Industrial coatings ① wood

furniture paint: at present, there are six types of nitropolyurethane, alkyd, acid curing amino, UV curing, etc., which are mainly used for wooden doors and windows, wall panels, wooden floors, furniture and other items. Due to the differences in consumption levels and habits in various places, the use types are different. In recent years, the varieties of furniture coatings have developed in a diversified manner, and the market competition is extremely fierce. The specific performance is as follows: a. the number of manufacturers specializing in the production of resin for coatings has increased, and there is a wide range of options. Some manufacturers specialize in supplying

light colored alkyd resin, hydroxyl acrylic resin, synthetic fatty acid modified polyester resin, aromatic moisture curing

polyurethane resin, thus increasing the number of workshop wood coating plants. b. The matting agent for wood paint and the wires inside were bitten by rats, and the slippery agent, defoaming agent and dispersant have developed greatly. The sellers of additives have increased technical services, making the paint making technology develop rapidly. C.

oily colorants have gradually developed into alcohol colorants and solvent colorants, and the color sharpness has been greatly improved. d. Some areas have developed water-based coatings, which have attracted people's attention, but due to the influence of performance and price, the progress is slow. China's nitrocellulose paint reached 52000 tons in 1997, most of which were used in wood varnish, and a small part was used in automobile repair and metal products. When painting nitrowood paint, the general solid content is 15%. By using low viscosity nitrocellulose and increasing the amount of resin, the construction solid content can reach 30%, even 40%. There are few reports about the development and modification of nitrate

based paint abroad. There are reports that diisobutyl phthalate plasticizer is used to replace dibutyl phthalate

ester, and nitrocellulose paint aqueous dispersion is developed for UV curing system. The leading technology of (Germany) wood coatings is water-based dye, water-based topcoat of water-based primer. In particular, water-based dyes, UV curable water-based enhanced varnishes and paints, and high-volume acid curable thermal spraying systems have been developed in the UK. ② Automotive coating materials: automotive coating represents the development direction of the coating industry. At present, China's automotive coating (OEM paint) is 60000-70000

tons, including 18000 tons of car coating, which is basically controlled by several joint ventures (such as BASF in Germany, Kansai in Japan, PPG in the United States in the domestic joint venture). The original coating of ordinary cars - heavy vehicles, medium-sized vehicles,

light vehicles The mini car is about 40000 tons. Automotive touch up paint is a major consumption field, which is difficult to estimate correctly because of the many varieties used (nitrate

base paint, alkyd paint, modified alkyd paint, etc.) and the scattered distribution of construction sites. However, with reference to foreign figures

(among European industrial paints, OEM automotive paints account for 12.7% and touch up paints account for 19.7%), it is estimated that China's automotive touch up paint will also be about 40000 tons, and the variety and technology will have a great development. ③ Household appliance coatings: in the past, almost all household appliance coatings were

amino alkyd paint. In recent years, with the development of powder coatings, it has gradually replaced amino paint. In 1998, the total output of powder

end coatings in China was about 70000 tons, and thermosetting powder coatings was 60000 tons, about 70% of which were used in household appliances. 4.3 special

coatings ① anticorrosive coatings: it is estimated that the domestic production of anticorrosive coatings has reached 180000 tons in recent years, among which phenolic

antirust and alkyd antirust coatings with low price are still widely used in general anticorrosive coatings, while the supporting system of heavy-duty anticorrosive coatings has been greatly developed in recent years. For example, the service life of offshore oil production platforms is required to be more than 10 years. Now, the inorganic zinc rich or epoxy zinc rich plus two polyurethane finishing coats are used, and the film thickness is 14um. It has been used for more than 6 years, and the service life is estimated to be up to 15 years. Another example is that a metal structure factory of Petrochemical Company signed a strategic cooperation agreement on Suixi technology transfer between Shanghai University and Shanghai University for oil, which requires the use of thick paste ring

oxyester primer with a dry film thickness of 127um, and polyurethane paint with a dry film thickness of UM. These paints can be produced by domestic large and medium-sized state-owned enterprises and individual township enterprises with technical strength. Only due to the loss of professional talents in some state-owned enterprises, inflexible sales means and lagging technical services, the market is crowded by joint ventures, private enterprises and township enterprises. According to rough estimates, China's epoxy zinc rich and inorganic zinc rich coatings are about 10000 tons

there are about 60000 tons of epoxy anticorrosive coating, 30000 tons of polyurethane coating and 15000 tons of powder anticorrosive coating. In the anti-corrosion coating system, the combination of epoxy coating will be the main force of heavy-duty anti-corrosion coating, which has great development prospects. In its

, we should pay attention to the wet curing polyurethane coating made by using the latest technology. It does not produce

co2 in the reaction, and has the advantage that it will not blister during the coating of thick film. In addition, the curing of this kind of coating is greatly affected by relative humidity and less affected by temperature. Therefore, it can be cured at low temperature and has the difficulty of coating to the wet surface. They

can be applied at 5 ℃ - 50 ℃ and 30% - 98% relative humidity. They can be used for

Bridge oil storage tanks, chemical plants and offshore oil production equipment. They can be used as primer, intermediate layer and finish coat. ② Road marking paint: domestic road marking paint includes ester rubber paint, phenolic paint, chlorinated rubber paint, acrylic resin and hot-melt road

wire paint. Among them, ester gum, chlorinated rubber and acrylic resin are used more. The selection and development of road marking paint varieties have a great relationship with the understanding of highway management departments on coatings. ③ Heat resistant paint: heat resistant paint generally refers to the paint that does not change color and fall off when the temperature is above 200 ℃

, and can still maintain appropriate physical and mechanical properties. Heat resistant coatings are widely used in chimneys and high-temperature steam pipes

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