China's powder coating industry development process and in recent years and the future direction of development

Nan Renzhi, a professor-level senior worker, enjoys government subsidies under the State Council. Graduated from university in 1964, engaged in powder coating research for 45 years, compiled "powder coating and coating technology" (published three editions), published more than 60 papers, won the National Science Congress Award 1 and provincial and ministerial science and technology progress award 4. Awarded the petrochemical system outstanding contributor, China powder coating 30 years outstanding contribution figures, China's paint industry 100 years of influential figures and other honors
China
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I. China's powder coating industry development process
1, a long start and awareness stage
in China's powder coating industry is the origin of the 1960s from a machine Guangzhou Institute of Electrical Science research and development fluidized bed coating method coating insulation powder coating, and in 1973 in Changzhou insulation plant set up a production capacity of 10 tons / year began.
China's electrostectrical powder coating and coating technology research and development began in 1974, the cause is the world's first development of electrostectrical powder coating equipment of the French SAMES company, with coating equipment to participate in China's French industrial exhibition, after the exhibition of electrostectrical powder spraying equipment left to the (Lanzhou) Ministry of Chemical Industry Paint Industry Research Institute. Inspired by electrostectrical powder spraying equipment, we began to consult the literature and conduct research applications for "static powder coating epoxy powder coating new technology" key scientific research projects of the Ministry of Chemical Industry. In 1976, the Ministry of Chemical Industry Paint Industry Research Institute, Shenyang paint factory, Changchun first automobile manufacturing plant three units jointly undertake the project, set up a scientific research, production, use units of three combined attack team, in 1980 in Shenyang paint factory to complete the pilot and trial production, in the first automobile manufacturing plant auto parts, wipers, handles and other spray applications and ministerial technical identification. The project later won the third prize of scientific and technological progress of the Ministry of Chemical Industry, which is the beginning of the research and production of thermostation electrostectrical powder coating and coating technology in China. In 1982, the Ministry of Chemical Industry Coatings Research Institute and a machine Chengdu Electrical Factory in Chengdu Electric Factory to establish China's first production capacity of 300 tons / year of thermoo-solid powder coating linkage production line.
In 1982, Huayang Chemical Plant in Jiangdu County, Jiangsu Province, established a production capacity of 500 tons / year of powder coating production plant, the factory became China's first real powder coating professional production plant, in 1984, the national powder coating production of 600 tons, nearly 80% of the factory production. Later, the factory is located in the region (Jiangdu County Xiaodi Town) has become the origin of China's powder coating production, so far there are nearly 20 powder coating manufacturers in the region, the production of tens of thousands of tons of powder paint, for local farmers to become rich and employment play a positive role. Although after 10 years of self-improvement efforts, but the domestic raw materials and manufacturing equipment restrictions, as well as user awareness of new products and new processes lag, powder coating and coating technology development speed is very slow, in 1985 the national powder coating production of only 1200 tons.
2, the introduction of powder coating manufacturing equipment and technology of the rapid development stage
Since 1978, the Third Plenary Session of the Eleventh Central Committee of the Communist Party of China decided to reform and opening up, the country began to introduce a large number of foreign advanced technology and equipment, promoting the development of new technologies and new products at home. Our coating industry is no exception, take advantage of the east wind of reform and opening up, Wuxi paint factory in 1985 first introduced 300 tons / year powder coating production line from the British company Mande, in 1986 Hangzhou paint ink factory and the French CDF joint venture built Hangzhou Sino-French Chemical Co., Ltd., the introduction of 600 tons / year powder production line and 1500 tons / year polyester resin production line. In 1986, Anhui Yixian Chemical Plant introduced a powder coating production line of 1000 tons/year from WP Corporation of Germany, and in 1986 Guangdong Antelope Powder Coating Factory introduced a 500-ton/year powder coating production line from BUSS Corporation of Switzerland and a powder coating production line of 1000 tons/year from APV Company of the United States in 1988. In 1988, Beijing Red Lion Coatings Co., Ltd. and the Netherlands DSM Resin Co., Ltd. jointly established a 1000 tons / year powder coating production line. The introduction of these advanced powder coating production lines, but also the introduction of powder coating formulation and technology. Later Xinhua Resin Factory, Guangzhou Institute of Electrical Science Powder Branch, Harbin Plastics Five Factory, Langfang Yanmei Chemical Company and many other units have also introduced powder coating production equipment and related formulation technology.
from the United States APV company, Germany WP company to introduce twin screw extruder and Swiss BUSS company to introduce single screw extruder equipment; China's powder coating manufacturing equipment manufacturers combined with China's national conditions, in the extruder and ACM grinding equipment has been improved and innovated, but also to promote China's manufacturing powder coating key equipment localization process. The introduction of powder coating manufacturing equipment and technology has greatly promoted the technical level and product quality of powder coating production in China, and accelerated the increase of powder coating production in China. China's powder coating production, from 1200 tons in 1985 to 43,000 tons in 1995, increased more than 30 times;
At that time, China's introduction of powder coating manufacturing equipment and technology is intended to meet the domestic introduction of household appliances powder coating process supporting the needs, these introduction of equipment and technology has also promoted the powder coating manufacturing equipment localization process, in 1995 began production capacity of 150kg/h of domestic powder coating production equipment has been very mature, while the development of production capacity of 300 to 500kg/h complete sets of equipment. At the same time, it also promotes the localization and matching of raw materials, which basically meets the needs of domestic powder coating varieties and dosing. This stage is the fastest developing stage of powder coating in China.
3, powder coating manufacturing equipment and raw materials basic supporting the stable development stage
With the introduction of imported powder manufacturing equipment, but also promote the innovative development of domestic powder manufacturing equipment, in powder coating manufacturing equipment basically meet domestic demand, after 2000 there is basically no manufacturers imported powder coating manufacturing equipment. Powder coating manufacturing equipment is basically domestic, and began to be sold to countries around the world, including developed countries. Entering the 21st century with the introduction of metal powder or pearl powder Bonding process of new technology, began some large enterprises to introduce Germany's Hensar Bonding equipment, soon many domestic powder equipment manufacturers also began to manufacture different types of domestic Bonding equipment, soon domestic large and medium-sized enterprises have been popularized to meet the basic needs of different domestic products. Although the control parameters of imported equipment precision is high, quality is good, but the price is very expensive, from the input and output ratio, many users difficult to accept the price of imported equipment, or domestic equipment use is more common, and domestic equipment control parameters of precision and quality has been greatly improved to meet the general metal powder and pearl powder product quality requirements.
As a result of China's reform and opening up, see China's vast powder coatings market, the world-renowned coatings company AkzoNobel company, began a joint venture with Red Lion Coatings Company to establish powder coatings companies, and then gradually set up a wholly-owned company, through the acquisition of domestic powder coatings company national cloth point, become China's largest powder coatings company. There are also Austrian tiger companies that have established wholly-owned companies in the country and have an advantage in the fields of metal Bonding powders and specialty powder coatings (e.g. powders for MDF). These foreign-funded enterprises played a positive role in meeting the demand for special powder coating varieties in foreign-funded enterprises and joint ventures in China at that time, and at the same time played a certain role in the development of China's powder coating industry.
With the large demand for powder coating production raw materials, especially the most important raw material polyester resin production technology is relatively weak, the Netherlands DSM resin company, Belgium's UB company also set up a polyester resin production company in China; The establishment of these resin factories has played a positive role in the matching of polyester resin for powder coatings in China and the technological progress of polyester resin products in China, meeting the needs of polyester resin raw materials in the high-speed development stage of our country. In the powder coating development situation to promote the development of domestic polyester resin enterprises, Shen Jian, Guanghua, Tiansong, Dynasky and other enterprises rapid development, has become China's production of polyester resin of the first few major enterprises.
In other raw materials, the main additive leveling agents, brighteners, anti-light agents and other varieties are domestic soon to match, but some special varieties are still in short supply, so in the development of special powder coating varieties, foreign investment and joint ventures have a great advantage. In this situation, foreign larger additive companies in the domestic establishment of branches, in the domestic can buy powder coatings supporting special curing agents and additives, greatly facilitate the production of various varieties of powder coatings, narrow the domestic enterprises and foreign investment and joint ventures of technical level and product quality and variety of the gap. After entering the 21st century, China's powder coating industry is relatively stable development to date.
the production and growth of powder coatings in China from 1985 to 2017 can be seen in Table 1.table
1 1985-2017 China's thermoo-solid powder coating sales and annual growth rate
From Table 1 data show that China's powder coatings have been growing steadily for more than 30 years, between 2007 and 2017 basically remained between 4.5% to 13.8%, the lowest growth rate in 2012, and then gradually increased. Growth from 10.1% in 2016 to a high level of 13% in 2017 has increased the importance the coating industry attaches to environmentally friendly powder coatings and coatings. The growth rate of powder coating production in China is basically consistent with the growth rate of national GDP, or even slightly higher. From entering the 21st century, China has become a powder coating production country, powder coating growth rate is also relatively fast country, since 2006 China's powder coating production accounted for half of the world's powder coating production, veritablely become a powder coating production of large countries, but also powder coating consumption of large countries, has been maintained until now, unfortunately we can not say that powder coating production technology is a powerful country.
II, China's powder coating industry in recent years
1, powder coatings in China's paint industry position
Table
2 Changes in the structure of paint varieties in China from 2007 to 2012 note
: Statistics for 2007 and 2008 are divided into three categories: architectural coatings, industrial coatings and powder coatings, and the automotive coatings, industrial protective coatings, coil coatings and other coatings are classified as industrial coatings.Table
3 Changes in the structure of paint varieties in China from 2013 to 2017
From the data in Tables 2 and 3 above, the proportion of powder coatings in China's total coating production shows that the growth rate between 2007 and 2017 was between 7.8 and 10.5%, with no major fluctuations, starting with about 10% in the first few years and then falling to about 8% basically stable. Powder coating has become China's paint industry can not be ignored an environmental protection paint varieties occupy a certain ratio, standing its position.
2, powder coating varieties
in China 2006-2017 thermoo-solid powder coatings, the percentage of resin varieties powder coatings see Table 4. Table
4 Percentage of thermoo-solid powder coatings in China from 2006 to 2017
Data from Table 4 show that the main varieties of powder coatings in China are epoxy, epoxy/polyester and polyester powder coatings, high-grade polyurethane, acrylic and fluorocarbon powders accounted for a small proportion, their total amount of less than 1%. Prior to 2010, epoxy/polyester powder accounted for the largest proportion of 42.9%, followed by polyester powder accounted for 38.3%; Among polyester powder coatings, the proportion of environmentally friendly HHA-cured polyester powders increased significantly in 2017, from 12% in 2016 to 18%, and the proportion of TGIC cured polyester powder coatings decreased significantly, from 29.3% in 2016 to 25.8%.
3, powder coating raw materials supporting
in China 2006-2012 and 2013-2017 powder coating polyester resin main manufacturers and sales see Table 5 and Table 6.
Table 5 China 2006-2012 powder coating polyester resin main manufacturers and sales units
; Resin main manufacturers and sales units: t
from Table 5 and Table 6 data show that China's polyester resin sales order in 2006 for China and France, the Association, DSM, Sword, Cyanide, to 2017 sales The order into the sword far ahead, followed by Guanghua, Dynatian, Tiansong, DSM and maple forest side by side, indicating that polyester resin production order has changed greatly, especially Zhanxin (original cyanide) has been ranked in the top 10 positions, by Domestic enterprises occupy the leading position, indicating that powder coatings are the most important, the largest amount of polyester resin, basically by domestic enterprises mainly produce, eliminated many small enterprises, to large-scale enterprises to assume the task of polyester resin production, significantly improve the production of polyester resin production technology level, To meet the domestic powder coating polyester resin varieties and production needs, but also to achieve a part of the export of products.
, one of the most important raw materials for powder coatings, are the main manufacturers and sales volume of epoxy resins in China from 2013 to 2017. table
7 China 2013-2017 powder coating epoxy resin main manufacturers and sales units: t
from Table 7 data show that the national capital chemical (Korean enterprises) are all domestic enterprises, these enterprises are basically large-scale production enterprises. The vast majority of epoxy resins are made from domestic resins, which basically meet the needs of powder coating production varieties and production.
of TGIC and HAA, the main curing agents of polyester powder coatings, are the main manufacturers and sales in China from 2013 to 2017, as seen in Tables 8 and 9.
Table 8 China 2013-2018 TGIC curing