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Talk About Organic Glass Acrylic.

- Apr 22, 2018 -

PMMA is commonly known as plexiglass, or acrylic or acrylic, and the Hong Kong people are known as agaric, which is an important thermoplastics developed early, with good transparency and chemical stability.

PMMA organic glass, also called acrylic or acrylic, the people of Hong Kong is more strength, is a kind of development early important thermoplastic, has good transparency, chemical stability and weather resistance, easy dyeing, easy processing, nice appearance, has been widely used in the construction industry. Organic glass products can be divided into casting boards, extrusion boards and molding plastics.

1. Plexiglass acrylic (acrylic) application in the construction industry in terms of architecture, organic glass, acrylic (acrylic) is mainly used in architectural lighting, transparent roof, roof, telephone booth, stair and room wall sheeting, etc; Sanitary ware has a bathtub, washbasin, dresser and other products. In recent years, the application development of high speed road and high grade road lighting and car lighting is also very fast. Among them, the market growth of building lighting body, bathtub, street advertisement lamp box and telephone booth is fast, and the future development space is big, the market prospect is very broad.

In recent years, with each big city hotel, hotel and residential construction, architectural lighting body is developing rapidly in our country, using plexiglass (acrylic) acrylic extrusion plate made of a light body, with the overall structure of the high strength, light weight, high light transmittance, high safety performance special advantages, compared with inorganic glass mining light place, has great superiority.

At present, the United States and Japan have made mandatory provisions in the law, the glass of primary and secondary schools and kindergartens must be acrylic. With the continuous improvement of China's laws and regulations, it is expected that in the near future, Chinese law will also stipulate that the glass of primary and secondary schools and kindergartens must be acrylic. At the same time, the pace of urban construction has been speeded up all over the country, street signs, advertisement boxes and telephone booths have appeared, among which a considerable proportion of the materials used are acrylic materials.

In sanitary ware, as a result of plexiglass acrylic bathtubs has the luxurious appearance, a sense of depth, easy to clean, high strength, light quality and comfortable use, etc, is widely used in recent years, the current domestic organic glass acrylic bathtubs about 1.5 million with an annual output, consumption PMMA extrusion plate or casting 5000 tons.

With the improvement of China's building codes, PMMA will be more competitive in more application fields.

In addition, special organic glass, such as optical plexiglass, anti - ray organic glass and cd-grade plexiglass, are still blank in China's construction industry.

2. The plexiglass acrylic PMMA (acrylic) production and market situation of organic glass products in our country at present the total production capacity in nissan 130000 tons, manufacturers a lot, but the scale of production.

Domestic organic glass acrylic production and processing capacity is very big, but the unreasonable product structure, only common varieties of products, high value-added products, lack of construction need in variety and quality can't meet the demand of the market, such as building a great demand for the extrusion plate needs a large number of imported from abroad.

In recent years, China's consumption of plexiglass acrylic (acrylic) is growing rapidly, but in China, the varieties of organic glass PMMA drab, quantity is less, the quality is poorer, far cannot satisfy the needs of the domestic market, leading to imports increase year by year. In 2000, the import of PMMA molded plastic in China reached 77,000 tons, and nearly 4,000 tons of organic glass plates were imported. In terms of imports, the total imports of guangdong, Shanghai, zhejiang and jiangsu accounted for about 95% of the total imports. Jiangsu, Shanghai is China's main production of organic glass casting board area, due to the pouring process is simple, less investment, so many township enterprises in the process of mill production, the device is small, the quality of the product is far short of the quality of the building materials industry standards, in foreign countries is already obsolete.

In the 1980s, the annual sales volume of acrylic (acrylic) organic glass was less than 20,000 tons, and the consumption market was not dominated by the construction industry. Into the 90 s, PMMA market application in the construction industry has a larger development, consumption is growing rapidly, has reached 85000 tons in 2000, the pouring plate 29000 tons, 25000 tons of extrusion plate, die 31000 tons of plastic (not including extrusion sheet molding compound). It is expected that in the next few years, the growth rate of the domestic acrylic glass market will remain above 6%. It is estimated that by 2005, the market capacity of acrylic glass in China will be 110,000 tons, with construction accounting for 60% ~ 70%.

As early as the 2020s, the company was the first to develop a method of using MMA to form acrylic sheets, known as" oroglas/plexiglas". However, the company failed to find a more economical way to produce the MMA, so the acrylic sheet (acrylic sheet) was not widely available at the time.

In 1931, ICI scientists invented the production of MMA acetone cyanol, which greatly reduced the cost of MMA and popularized the acrylic sheet (acrylic sheet). ICI, at the same time, also successfully developed acrylic (acrylic board) for fighter cockpit hood, and other fields, ICI, then built the world's largest acrylic in the factory.

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