A flame retardant phenolic foam board

Abstract

The invention relates to a flame-retardant phenolic foam plate which is prepared by mixing the following components in parts by weight: 50-70 parts of alkali phenolic resin, 7-30 parts of a flame retardant, 5-15 parts of a foaming agent, 15-30 parts of water and 10-30 parts of a curing agent, so as to obtain a phenolic resin foaming system, heating to foam the phenolic resin foaming system at one time, and performing curing formation and later curing treatment so as to obtain the phenolic resin foam plate, wherein heating for foaming is carried out for 2-4h at 40-80 DEG C under the humidity of 40-90%. As the phenolic resin is modified when foamed, on premise that the mechanical property of the phenolic resin is not reduced, the flame retardancy is improved, and the cost problem of large-scale production is solved.

Description

technical field [0001] The invention relates to the technical field of new building energy-saving materials, in particular to a technology and method for mixing and foaming a phenolic resin and a flame retardant. Background technique [0002] Under the influence of the global financial crisis, whether my country's national economy can maintain a sustained and stable high-speed development, the energy issue has become a prominent contradiction. my country has the largest construction market in the world, with an existing construction area of ​​40 billion square meters and an annual increase of 2 billion square meters of new buildings. At present, more than 95% of my country's new buildings are still high-energy buildings, and the building energy consumption has reached the national level. 27% of social energy consumption. If no energy-saving measures are taken, by 2020, 50% of the country's energy consumption will be spent on buildings. According to the statistics of relevan...

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Problems solved by technology

The production and processing of inorganic thermal insulation materials consumes a lot of energy, the thermal insulation effect is unstable for long-term use around the clock, and the construction process is complicated. Especially the material use process and post-use treatment are harmful to the environment and human body, so that they are banned in some occasions and even in some countries. ; Traditional polystyrene boards and polyurethane foam boards have excellent thermal insulation effects and are widely used in China's current wall insulation material market, but they do not have safe fireproof performance, especially when they burn, and produce toxic gases. In fact, the use of such materials In developed countries, it has already been limited to extremely small application fields

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