The research and development of new building insulation materials and design of wall insulation systems should place safety and energy conservation, insulation and fire protection at the top of the list.
In the 1980s, foreign scientists researched phenolic resins and their products and found that they had outstanding flame retardancy when fired, and almost no smoke or toxic gas occurred. This is the internationally recognized so-called FST (Fireproof, Smokeless, Toxicityfree) feature. . The resulting phenolic foam (PF) is exceptionally light (0.03-0.08) in density and has excellent energy-saving insulation and sound insulation. A 30-mm-thick PF flat plate is subjected to flame spraying at 1700°C for 10 minutes. Only the surface is slightly charred and burned. It neither ignites nor emits smoke and toxic gases. The temperature on the other side of the board does not exceed 50°C, and even if the worker's face is tight against the board surface, it will not be harmed.
Phenolic foam (PF) has a low thermal conductivity and is approximately twice as energy-efficient as conventional insulation materials such as rock wool, glass wool and expanded perlite. It is recognized that its energy-saving insulation performance ranks first in all insulation materials, and some people call it the king of insulation or the third generation of insulation materials. Phenolic foam (PF) used for wall insulation materials should be a major improvement for Liguo Limin.
In industrialized countries such as the United States and Japan, there are stringent fire protection requirements for wall insulation of important buildings and high-rise buildings. In recent years, relevant construction departments in various countries have turned their attention to PF, which is both energy-saving and fire-proof, and used in wall insulation systems.
British Promaloc Products Co., Ltd. is a well-known manufacturer of phenolic exterior insulation boards. Its phenolic foam (PF) fireproof performance meets British Standard BS476-7. After years of development and research, the company developed and implemented a set of complete and mature specifications for construction application technology systems in accordance with British standards. In the 1990s, it was successfully applied to masonry or concrete walls and whether it was new or Existing, high-rise or low-rise buildings can be applied. After inspection tests and assessments, the relevant construction department granted the company's phenolic insulation insulation system application permit (certificate number 041/97) in February 1997. The company declared that the external insulation system will not be damaged for at least 30 years after the construction of the public building or residential house.
Another example is Asahi Kasei Building Materials Co., Ltd. has conducted in-depth research and development of phenolic foam (PF) insulation materials for many years. In recent years, the company launched a PF insulation board under the trade name Neoma, which has passed tests of fire protection in Japan, China, and the United Kingdom. It has achieved Japan's JISD1201 specification for combustibility, and it has acquired Japan. Certificate of incombustible material certification, and won the Energy Conservation and Environmental Protection Award of the Japanese Economic and Trade Department and the Environment Agency. The company is vigorously promoting the use of new phenolic phenolic foam (PF) insulation boards in exterior wall, roof, ceiling, floor and partition walls and other insulation applications, and has formulated corresponding construction technical specifications. In order to improve people's healthy, comfortable and safe living environment, the company is committed to making New Dawn a new high-performance thermal insulation material in the new century.
Although China's current production of phenolic foam (PF) compared with foreign countries, there is still a certain gap in the process technology and construction applications, but in recent years, China's PF industry has developed rapidly, there are about 20 companies have built a fully automatic continuous production line, Last year, China's PF production has exceeded 8 million square meters, and most of the products are used in central air-conditioning ventilation ducts. In the aspect of improving fire performance, there are three kinds of phenolic foam (PF) boards developed by domestic companies. After the inspection by the National Fireproof Building Material Quality Supervision and Inspection Center, the combustion performance reaches GB8624A. This shows that phenolic foam (PF) as a safe, green new energy-saving building materials, its advantages have been more and more recognized by the construction sector and the public security fire department.
After strict review by experts and approval of relevant building and building materials industry market management stations, some manufacturers have already launched the application atlas of the design, construction and acceptance of phenolic foam (PF) panels external insulation systems, and have completed more than 100,000. A square meter of exterior wall insulation has brought new light to the development of phenolic foam (PF) in the wall insulation market.
It is worth noting that China's relevant scientific research units and enterprises have made new breakthroughs in phenolic resin modification and foaming technology. One is to overcome the disadvantages of PF foam scumming, brittleness, and low strength. The second is that the غير مجاز مي باشدt of phenolic foam (PF) is closer to that of polystyrene foam (PS); the third is that the pH of the product is close to neutral and non-corrosive to metal.
In recent years, the PF industry in China has developed rapidly. Shandong Shengquan Group Co., Ltd., the chairman of the PF unit, has introduced two Italian production lines. The equipment uses advanced computer control and German Siemens automatic control instruments to make raw materials. The ratio is more precise and ensures the stability of the product.
The premise of energy-saving buildings is safety. Without safety, buildings will lose their significance. Only the use of flammable, flammable, and dangerous insulation materials on the building wall can be eliminated to prevent major fire accidents from the source. Therefore, phenolic foam (PF) as a wall insulation material, is a good choice for both building energy conservation and fire prevention and mitigation.
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