The Development of Epoxy Floor

Epoxy resin contains epoxy resin in general. Mainly by epichlorohydrin and polyphenols (such as bisphenol A) and other polycondensation. According to the different ratio and system of law, available different molecular weight products. Low molecular weight is yellow or amber high viscosity transparent liquid. High molecular weight is solid, the melting point is generally 145-155 oC. Soluble in acetone, cyclohexanone, ethylene glycol, toluene and styrene. And polyamine, organic acid anhydride or other curing agent and other reactions into a hard body polymer compounds. Odorless, tasteless, alkali resistant and most solvents.

Excellent adhesion to metal and nonmetal. Heat resistance, insulation, hardness and flexibility are good. Can be used as metal and non-metallic materials (such as ceramics, glass, wood, etc.) of the adhesive (strong adhesion, commonly known as universal glue). Can also be used to make paint, reinforced plastic or cast into insulating parts and so on. And can be used to deal with imitation fabric, from the anti-wrinkle, shrink, water and so on. Low molecular weight epoxy resins can be used as stabilizers for PVC. The epoxy resin coating, is a variety of epoxy resin as the main component of the paint in general. Mainly used for electrical insulation and anti-corrosion. There are dry and dry type. Such as hot melt epoxy paint, epoxy primer, epoxy putty and so on.

Today, China is the world's largest consumer of epoxy resin. Data show that: epoxy resin in 2011 global consumption of 2.2 million tons, China's consumption of 900,000 tons; to "second Five-Year" end of the global consumption will reach 3 million tons, while the amount of China will be more than 1.75 million tons, %. Over the years the production capacity of China's epoxy resin has made great progress, the current total capacity of the device has far more than 1.75 million tons, plus the next three years of new capacity, to "second five" end of China's epoxy resin production capacity For global consumption.

In recent years, the rapid development of the epoxy resin industry and China's manufacturing industry is to match the rise, but with many of the rapid development of the industry, the weight of the early weight of the same problem exists in the epoxy resin industry; that is, when the basic basic products Development to a certain stage, the market demand for mass products began to become saturated, the demand for special high-end epoxy resin products more and more, and then the industrial structure adjustment period naturally come.

China Epoxy Industry Association Secretary-General Yang Xianyi said: At present, China's epoxy resin production is only 800,000 tons, business operating rate of less than 50%, but not the market is no demand, but the supply and demand structural adjustment has not kept up. In the next period of time, the growth rate of ordinary epoxy resin will continue, so the new application market needs to be opened up; but in sharp contrast to this situation, the domestic application market, there are a large number of high-end products by imports, The most prominent is used for highway bridges, building structural adhesive, China is currently used for the production of building structural plastic epoxy resin is only about 40,000 tons, accounting for only about 4.5% of the total output of epoxy resin, and Europe and the United States developed The country can reach more than 50%, this gap is obvious.

Of course, there is a gap between power. Facts have proved that epoxy resin is used in the adhesive industry, the best performance of the bonding material, with China's large infrastructure projects into the key maintenance period (the international popular water up concrete buildings, such as no special protection Measures, generally 6 years to enter the key maintenance period), coupled with China's auto industry, the rapid development of new energy industry, epoxy resin applications to the building structure, automotive machinery, electrical and electronic, new energy industry optimization is imperative The

China epoxy resin industry association president Bai Xinping said: epoxy resin applications are very broad, good market prospects. For example, in the automotive industry with the supporting electrophoretic coating on the need for epoxy resin as raw materials; with the development of marine economy, ships, docks, facilities, containers, offshore construction, drilling platforms, oil pipelines, mariculture facilities, Of the epoxy coating; China's power industry scale, from power generation, power transmission to electricity need epoxy resin products, such as epoxy coatings, brominated epoxy, etc .; In addition, in the food cans, food storage container manufacturing industry Among the coatings used, epoxy resins are also important raw materials. Although the use of diverse, but in the field of high-end applications, the real domestic production and industrialization is not much.

When an industry capacity to a certain stage of development, coupled with the progress of scientific and technological innovation, product applications will be a fundamental change in the distribution of the epoxy resin industry is an example, from the continuous expansion of the scope of application to adjust the industry layout into inevitable, Optimize the quality, variety of epoxy resin industry is facing a new task.

What is the new task? This is the rapid development of China's epoxy resin industry, with its supporting the pace of development of the agent is slow. Because the assimilator and epoxy resin is symbiotic relationship, epoxy resin only assimilated after the use of value, curing agent consumption is basically equivalent to about 35% of epoxy resin consumption. But because of its high research cost, complex synthesis technology, application methods changeable, so the global curing agent market has been Europe and the United States and a few other developed countries occupy, one of the higher quality assimilator varieties - i yuan synthetic amine, foreign production giants profit Even once more than 80%. Many industry insiders believe that the rapid growth of China's epoxy resin industry in the process, the main profits have been given to foreign companies with the same, but the current situation is changing.

Epoxy resin senior expert Hanglong Cheng pointed out: the expansion of the application area not only to the epoxy resin varieties, the quality of higher requirements, especially for the curing agent varieties and composite technology requirements more stringent. Each epoxy product will have a characteristic, with the curing conditions (temperature, humidity, etc.) different moderately adjusted curing agent varieties. Despite the small variety of epoxy resin, but the epoxy agent can be divided into high temperature curing acid anhydride, imidazole, dicyandiamide, m-phenylenediamine, medium temperature curing diaminodiphenyl methane, DPS, room temperature curing ethylene amine, Hexamethylenediamine, m-xylylenediamine, and latent assimilation of boron amines, imidazolines and the like. Therefore, in a wide variety of curing agent to choose, it is not easy. In the specific with the coating, adhesives, castables, potting materials, etc., but also the performance of the curing agent into a targeted. So the industry is saying that an epoxy resin to test the eleven million curing agent to find the most suitable, a new characteristic of the curing agent is equal to the development of one or a hundred kinds of epoxy resin.

China is the largest consumer of epoxy resin production, it should be the largest producer and application of curing agent market. But the reality is that I basically rely mainly on imports of raw materials (amines) with the most important curing agents, and the vast majority of the quality of the assimilants also rely heavily on imports, which inevitably affects the industry of China's epoxy resin to the high-end direction development of. Therefore, in the field of application of epoxy resin adjustment in China, a large number of high-quality, characteristic of the assimilation agent also need to be developed.

It is gratifying that, in accordance with the current development trend, the next few years, I base amine and part of the binary, yuan polymerization curing agent within the self-produced self-supply rate will be a fundamental change. The main reason is from 2010 onwards, through the continuous efforts of the industry, domestic technology and the introduction of joint venture technology to carry out the production, there are products available, breaking the epoxy curing agent base amine Fb foreign monopoly production situation Initially loose.

And then in the l0 early Juneen the opening of the 2012 epoxy resin industry development forum "Second, concerned about the key supporting industry epoxy resin supporting the development direction of the curing agent and modified technology to promote the coordinated development of the epoxy resin industry to solve the domestic epoxy resin Industry capacity ahead, lack of demand for the situation to become the focus of attention. Experts from the field of epoxy resin applications in-depth mining, listed six curing agent development direction:

First, functional curing agent. Due to the development of new structure and excellent performance of the epoxy resin is not progress, so as to adapt to resin modification requirements, with a special function of the curing agent will become the market darling, compared with the traditional curing agent, functional curing agent usually has a fast curing, Low temperature curing, toughening, flame retardant and other excellent performance.

Second, low toxicity, non-toxic curing agent. At present the industry is not only concerned about the process of curing agent production and use of toxic and environmental pollution problems, but also attach importance to the long-term pollution of waste epoxy resin products, according to reports, in the developed countries, the greater toxicity of polyene more plastic, aromatic amine All replaced by non-toxic or low-toxic modified amine. It is a curing agent that can adapt to special environment. Such as in the wet, underwater, outdoor harsh environment to maintain good performance and stability of the curing agent.

Third, electrical properties, mechanical properties, excellent mechanical properties of the curing agent will be greatly developed.

Fourth, electron beam and light curing products more and more attention.

Fifth, with the popularity of environmentally friendly products, powder coatings, water-based epoxy resin coating special curing agent, and one-component adhesive agent broad prospects.

China Epoxy Industry Association Secretary-General Yang Xianyi that the epoxy resin industry to accelerate the coordinated development of imminent, in line with environmental safety regulations and meet user needs under the premise of continuing to reduce costs, towards the series, specialization, supporting, Fine development is the long-term task of assimilating production enterprises. At the same time he suggested that, in order to accelerate the coordinated development of the epoxy resin industry, epoxy resin, curing agent production plant should form a partnership, promote each other, which is an effective way to the whole industry success.