How To Identify The Quality Of Phenolic Insulation Board?

In my country, fires caused by thermal insulation materials occur from time to time, causing casualties of personnel and property, and causing huge losses to people's lives. Therefore, when we choose thermal insulation materials, we must pay attention to the quality of thermal insulation boards, so how to identify phenolic thermal insulation What about the quality of the board? |As a kind of exterior wall phenolic insulation board is also a kind of exterior wall insulation material, what should be paid attention to when choosing insulation materials?
1. It is produced with large bubbles during production. Generally, the products produced by this method have relatively low density, are easy to be brittle, and are prone to pulverization or slag drop.
2. The other is assembly line production, which is used to make warm boards for modified phenolic insulation boards. It improves the phenolic resin and foaming process, and produces modified phenolic insulation boards that overcome self-powdering to a certain extent. The disadvantage of slag falling, so the density of modified phenolic insulation board is generally above 55KG.
3. In addition to the above methods of identification, we can also observe the appearance of the phenolic insulation board, press the density by hand, break it apart to see the toughness of the insulation board, and rub it by hand to see if it is pulverized and slag-free, etc. to identify the phenolic formaldehyde of the outer wall. The quality of the insulation board.
4. In addition, when purchasing insulation boards, you must choose regular manufacturers to buy, because the products produced by such regular manufacturers are controlled by strict quality supervision departments. The products produced by such regular manufacturers have relatively few quality problems.