Environmental impact of PMI foam packaging

At present, in the Chinese market, the recycling price of old foam products is more than 2 yuan per kilogram, and the good quality is up to 6 yuan/kg, and it is in short supply. The recovered foam can be used to make granules, baffles, energy-saving bricks, refined gasoline, and the like.

The foam is more environmentally friendly than the pulp. On the surface, the foam is not degradable, the pulp packaging is degradable, and the pulp packaging should be more environmentally friendly. The opposite is true. As the world's factories are transferred to developing countries, most of the packaging is produced in developing countries, while developed countries, while enjoying product and service, certainly require environmentally friendly by-products - packaging. But the production of pulp requires green plants. China is a country with water and drought, and vegetation is extremely valuable. Scientific experiments have shown that the vegetation and water consumed in producing one ton of pulp is far greater than the environmental impact of producing one ton of foam. Moreover, the production of pulp will also seriously pollute the water source. Therefore, developed countries are environmentally responsible for themselves and harm others.

Thermal conductivity of PMI foam board:

Generally, the foam board has a tight closed cell structure, and the polystyrene molecular structure often uses a foam board as a heat insulating material because of its non-absorbent property. At the same time as the PMI foam board, it is necessary to pursue a lower thermal conductivity to ensure its thermal insulation performance. The lowest possible thermal conductivity is the goal pursued by all insulation materials. The extruded board is mainly made of polystyrene, and the structural foam is originally an excellent low-heat-conducting material, which is supplemented by extrusion molding. The tight honeycomb structure is more effective in preventing heat conduction, and the heat-concentrating plate is thermally conductive. The coefficient is 0.028/m. k, has high thermal resistance, low linear expansion rate characteristics. The thermal conductivity is much lower than other insulation materials. Such as EPS board, foamed polyurethane, thermal insulation mortar, perlite and so on.

PMI bubble

If you use a general rigid foam insulation material, it will be easy to age after a few years, and the performance will gradually decrease. The use of PMI foam board can effectively avoid this situation, as long as it is properly maintained, it can prolong the service life. Long-term play to work.