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Make up for the weakness in the domestic high-end anti-corrosion market, two types of graphene heavy-duty anti-corrosion coatings from polycarbonate Lianfa

make up for the weakness in the domestic high-end anti-corrosion market, two types of graphene heavy-duty anti-corrosion coatings from polycarbonate Lianfa


China is a large marine country, with a coastline of 18000 kilometers, an ocean area of about 3million square kilometers, rich marine resources and a booming blue economic industry. According to the "2017 China's marine economy statistical bulletin" recently released by the State Oceanic Administration, the National Marine GDP in 2017 was 7761.1 billion yuan, accounting for 9.4% of the GDP

since joining the world trade organization, the proportion of China's foreign trade in national economic activities has increased steadily, reaching about 60%-70% of China's economy. It can even be said that without trade, China's economy will be unsustainable. Therefore, it is of great significance to improve the comprehensive competitiveness of marine industry, explore new ways of marine resources protection and development and new modes of marine comprehensive management, and build a modern marine economic system

"new engine of blue economy" is corroded. This is the thinnest material in the world at present. It is urgent to find a solution to the material problem of single atom thickness. With the continuous development of China's marine economy, especially the implementation of China's marine development and the Belt and Road and other national strategic projects, the number of offshore oil and gas platforms, submarine pipelines, offshore wind power, ship transportation, cross sea bridges, marine transportation facilities, coastal seaport wharves Coastal power plants and other facilities are blooming everywhere. However, while vigorously advocating the construction of a resource-saving and environment-friendly society in China, the rapid development of marine economy still faces the challenge of resource depletion and corrosion

it is estimated that about 20% of the metal materials in the world cannot be recovered due to corrosion. Therefore, the corrosion and protection of metals have attracted widespread attention all over the world. Relevant data show that the annual economic losses caused by corrosion in the world are as high as US $1trillion, about six times the total economic losses caused by natural disasters such as earthquakes, floods and hurricanes. In China, the annual economic losses caused by corrosion amount to 1.2 trillion yuan. About 441 bird's nests, 7 Three Gorges Projects and 46 Qinghai Tibet railways have been built. The loss caused by corrosion has always plagued all industries in the world, especially the marine corrosion

the anti-corrosion market demand is rising day by day, and the market economic volume will exceed trillion. At present, the corrosion problem is mainly solved by coating engineering equipment with anti-corrosion coatings. As a "bulletproof jacket" against corrosion, the market demand for anti-corrosion coatings is rising day by day. In China, especially in the petrochemical, pipeline transportation, offshore engineering and other industries with strict requirements for anti-corrosion specifications, the demand for anti-corrosion materials and heavy-duty anti-corrosion coatings has always maintained a sustained and stable growth trend

during the 13th Five Year Plan period, the bottom line of the annual average growth of the total output value of China's coating industry is about 6.5%. By 2020, the total output value of China's coating industry is expected to increase to about 560billion yuan, and the total output is expected to increase to about 22million tons

among them, heavy-duty anti-corrosion coatings, which can achieve a longer protection period than conventional anti-corrosion coatings under relatively harsh corrosive environment, are widely used in engineering equipment and facilities under severe corrosive conditions. With the national exploration and development of deep-sea resources and the implementation of the strategic goal of "going to the deep ocean", heavy-duty anti-corrosion coatings will have a broader market

after analyzing the data in recent years, we found that the sales revenue of China's heavy-duty anti-corrosion coating market showed a fluctuating growth trend in, and the growth situation was roughly similar to the total industrial output value. In 2017, the heavy-duty anticorrosive coating industry achieved a sales revenue of 88.465 billion yuan, a year-on-year increase of 14.0%

according to the forecast and analysis report on the development prospect of China's heavy-duty anticorrosive coating industry and the operation of leading enterprises by the prospective industry research institute, the heavy-duty anticorrosive coating industry will achieve a sales revenue of RMB 1981 billion by 2023

it is difficult to find domestic brands for high-end anti-corrosion coatings. The market volume is difficult to cover the technical gap. China has a hundred billion level anti-corrosion coating market, but the domestic anti-corrosion market pattern is another picture. Taking the ship heavy-duty anti-corrosion coating market as an example, AkzoNobel, PPG, Haihong Laoren, Jotun, Japan Zhongtu, Kansai and other foreign enterprises basically shared 80% of the market share. In 2017, Haihong Laoren, China National coating Corporation of Japan, Kansai of Japan and KCC of South Korea even accounted for an astonishing 95% of the container heavy-duty anti-corrosion coating market. Foreign giant coating enterprises have basically formed a competitive pattern of relative monopoly in the domestic market. Even though the heavy-duty anti-corrosion coating market is growing at a high speed every year, which has brought certain opportunities for the growth of domestic enterprises, due to the technical gap, domestic anti-corrosion brands are obviously lack of market competitiveness

as a developing country, China has made great progress in economic and technological development, but this does not mean that all technologies can compete with the international community, at least not in the high-end heavy corrosion protection field. Due to historical reasons, the research and development of anti-corrosion coatings in China started late, coupled with the long-term blockade of Chinese technology by the international community, there is still a lot of way to go for the development of Chinese anti-corrosion coating technology

it is understood that in the global heavy-duty anti-corrosion industry chain, from raw material formulation to technology research and development, Chinese coating enterprises can only rank in the first echelon of the middle and low end. The lack of independent intellectual property technology, the lack of corresponding technical standards, and the backward iteration of production equipment are very detrimental to the long-term development of China's blue industry

up to now, foreign brands can be seen in some super large and key projects in China where high-specification anti-corrosion treatment technology is required. For example, in the world's largest coal chemical flow project built in China, heavy-duty anti-corrosion coatings from AkzoNobel, Jotun and other companies are designated to be used. AkzoNobel coating is basically used for the anti-corrosion and fire retardant coating of Shanghai center building, the tallest building in China. The above examples are numerous. This key resource, which has been grasped by foreign coating giants for a long time, is like the throat that is seized at any time. Once there is a problem, Tianzi thinks that the loss will be immeasurable if only one item is corroded

well deserved king of new materials graphene promotes new changes in the heavy and anti-corrosion industry graphene, as a new nano material, has the reputation of "king of new materials". Its good barrier performance and shielding performance, as well as extremely excellent conductivity, heat conduction, ultra thin and ultra large specific surface area, make it a natural functional material to improve the performance of anti-corrosion coatings and reduce the cost of anti-corrosion coatings

many authoritative experimental data show that graphene, as a key material, plays a particularly important role in the anti-corrosion coating. It can effectively block the penetration and diffusion of the external environment and corrosive substances to the metal substrate, and form a dense protective layer. It has the advantages of good anti-corrosion effect, low coating thickness, high adhesion, light weight, good mechanical performance, excellent salt spray resistance, long service life and low cost, It is a good upgraded alternative to traditional anti-corrosion coatings. Once graphene is successfully applied in anti-corrosion coatings, it will greatly improve the negative impact of corrosion loss on economic development. At the same time, it will become a new bright spot and new driving point of industrial anti-corrosion coatings

according to the 2018 graphene technology patent analysis report released recently, among the total number of graphene related technology patents in the world, China has the largest number of patent applications, reaching 37521, leaping to the first place in the world, accounting for 66.5%. The support of policies, the drive of technology and the entry of capital have brought new opportunities for China's scientific and technological innovation to "overtake at the curve", and also ushered in new reform opportunities for the reform of China's industrial anti-corrosion coatings

it is understood that the domestic graphene anticorrosive coating has become mature. With the expansion of market demand and the vigorous promotion of coating enterprises, graphene anticorrosive coating is gradually being recognized by relevant enterprises. It is worth mentioning that under the severe situation of "foreign enemies", graphene enterprises and coating manufacturers have tacit understanding to carry out in-depth cooperation in R & D technology and production technology

in the first half of this year, Zhuhai polycarbonate composite Co., Ltd., which has rich experience in graphene research and development, and Jiangmen Jiabaoli Chemical Group Co., Ltd., one of the largest domestic paint and coating scheme providers, launched cooperation in the field of graphene epoxy anticorrosive primer. It is believed that in the future, in the high-end anticorrosive coating market, Chinese anticorrosive coating brands can not only catch up, but also compete with international brands on the international platform

graphene anticorrosive coating has obvious advantages and prominent economic and environmental protection effects. According to Mr. chenxiaogang, chairman of Zhuhai polycarbonate composite material Co., Ltd., "compared with traditional heavy-duty anticorrosive coatings, graphene anticorrosive coatings not only have significantly improved performance, but also have environmental protection and cost advantages that traditional anticorrosive coatings cannot compare." As we all know, corrosion is caused by the contact of metal surface with air, water or other corrosive media. The main way to solve the corrosion is to coat the metal with coating materials and achieve the purpose of corrosion prevention through physical isolation, chemical and electrochemical reactions. At present, in the field of heavy corrosion protection of steel structures, zinc rich coatings are widely used to treat corrosion all over the world. Because the electrode potential of zinc is lower than that of steel, steel is not easy to be corroded through the role of sacrificial anode. However, the use of a large amount of zinc powder will not only increase the coating cost, but also bring serious "zinc pollution"

graphene material has natural advantages in physical and electrochemical corrosion protection due to its own characteristics. Graphene sheet structure is stacked layer by layer and staggered. A "labyrinth" shielding structure can be formed in the coating, which can effectively inhibit the infiltration, penetration and diffusion of corrosive media and improve the physical barrier property of the coating. At the same time, the conjugated structure of graphene makes it have high electron mobility and good conductivity, The lamellar structure can also ensure good electrochemical contact between the coatings, form a strong conductive complex, and then use less zinc powder to achieve the same cathodic protection

in the formulation of graphene anti-corrosion coating, it mainly refers to that the anti-corrosion principle is that the powder with shielding effect can be replaced and modified with graphene, while the addition amount of graphene is only 0.5%-2%, which can replace 30%-60% of the anti-corrosion and anti rust fillers. The significance of reducing costs and improving the environment can be seen

climate, geography, people and oligomeric carbon drive into the "fast lane" of graphene anticorrosion. According to the prediction of the three methods often used in cgia resea reliability experiment, the market of graphene anticorrosive coatings in China will reach 500million yuan by the end of 2018, the penetration rate of graphene anticorrosive coatings in industrial anticorrosive coatings will exceed 1% in 2020, will reach 3billion yuan, and will reach 4.8 billion yuan in 2022, Graphene anticorrosive coating is expected to help domestic anticorrosive coating enter the international high-end market

since the birth of graphene in 2004, graphene has developed into a super large industry with a volume of more than one trillion in just a few years. In China, graphene has even become a national strategic industry, with unprecedented support from various policies and industrial funds. Governments at all levels have also issued corresponding supporting policies and measures, and various graphene industry alliances, research institutes, innovation centers and enterprises have sprung up

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