The hottest polyurethane building insulation indus

2022-08-15
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Polyurethane building insulation industry is eager for the implementation of the new standard

about the purchase of electronic tensile testing machines in the full establishment plan of the flexible packaging implementation room. In recent years, many malignant high-rise building fire accidents, such as the fire of CCTV new building and the teacher's apartment in Jing'an District, Shanghai, have attracted the attention of all sectors of society on the safety of external wall insulation materials. For this reason, relevant national departments have issued relevant policies several times, gradually improving the fire performance index of exterior wall insulation materials. At present, the fire performance index of thermal insulation materials has been raised to class A, but the standard is raised, but it is embarrassing to implement it

at present, the vast majority of organic thermal insulation materials on the market cannot meet the A-level fire prevention standard. In a short time, manufacturers cannot produce organic thermal insulation materials that meet the A-level fire prevention standard. In this way, there will be a vacuum in the market for a period of time. And to achieve A-level organic insulation materials, we must use rock wool, glass fiber and other inorganic materials. Due to the large water absorption of inorganic materials, complex installation, high price and cost, it is difficult to promote and apply in the market. Selectively lifting the ban on organic thermal insulation materials seems to be the appeal of the whole industry

at the 7th international building energy efficiency and new building materials exhibition held recently, many exhibitors expressed their expectation that the new standards would be implemented as soon as possible and that polyurethane insulation materials would be selectively lifted

Mr. Chen of Dow architecture application said that we have been looking forward to the introduction of this new standard as soon as possible, so that there can be a clear standard to regulate in this industry. Businesses also have directions in developing new products

in the current situation where safety factors prevail, the thermal insulation effect is ignored, so the inorganic achievements are used in many domestic engineering materials. Now there is a rising trend. Now many builders dare not ask for organic materials with poor flame retardancy, and begin to purchase a large number of inorganic materials with good flame retardancy. During the interview at the meeting, it was also found that many booths also introduced class a insulation materials, but most of them were inorganic materials such as rock wool and glass fiber, which greatly reduced the insulation effect

manager Zhu of a Polyurethane Co., Ltd. in Shanghai said that if grade a insulation materials are used in the cold northern areas such as northeast China, it is difficult to meet the standard in terms of insulation performance, and grade B1 polyurethane insulation materials are relatively suitable, but because the new standards have not been issued at present, the acceptance process is still relatively difficult

it is also seen that polyurethane insulation materials are basically difficult to meet the class a arson standard, resulting in a straight rise in the price of class a insulation material rock wool, and the cost per square meter has reached 140 yuan

a building material supplier in Shanghai complained: "From the perspective of outsiders, this industry is very chaotic because of the lack of standards that keep pace with the times. A fire came out to suppress a kind of material. Now the rise trend of inorganic materials in Shanghai is obvious, which is simply a reversal of history. You know, there is another problem that can not be ignored. The speed of change of mechanical materials in those years: the experimental speed can be changed arbitrarily, and it gradually retreats because the energy-saving effect cannot meet the national building energy-saving standards Out of the insulation market. "

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