In building insulation materials, if extruded boards (XPS boards) use secondary recycled materials (such as recycled plastics, waste recycled materials) as raw materials, it may cause the following serious consequences:
1.Reduced thermal insulation performance
Impurities in the recycled materials (such as other plastics and metal particles) will destroy the closed-cell structure of the extruded
board, resulting in an increase in the thermal conductivity (input value) and a significant decrease in the thermal insulation effect.
The water absorption rate increases, and it is easy to get wet and freeze, further weakening the thermal insulation performance.
2.Insufficient compressive strength
The molecular chain of the recycled material breaks and ages, resulting in a decrease in the compressive strength of the board, which cannot meet the national standard (such as the compressive strength of the XPS board needs to be ≥150-500 kPa).
When used on the ground or roof, it is easy to deform and collapse, causing hidden dangers in the building structure.
3.Poor dimensional stability
The recycled material has a complex composition, an unstable thermal expansion coefficient, and is easy to shrink or warp,causing the insulation layer to crack and fall off.
4.Release of harmful substances
Recycled materials may contain flame retardants (such as hexabromocyclododecane), plasticizers (such as phthalates) and other harmful chemicals. Long-term release will pollute indoor air and endanger human health.
If the source of recycled materials is unknown (such as medical waste, electronic waste), they may carry heavy metals (lead, cadmium) or radioactive substances.
5.Increased fire risk
Impurities in recycled materials may cause flame retardants to fail, reduce the fireproof level of the board (such as from B1 to B2), and easily burn and release toxic smoke in the event of a fire.
6.Environmental pollution
The processing of recycled materials may produce more waste gas, wastewater and dust pollution. If not handled properly, it will cause secondary pollution to the surrounding environment.
Latest Bolg
Why do most people choose to use xps insulation board?
July 18, 2025
There are many compelling reasons to use extruded polystyrene (XPS) insulation in building and construction projects. Here are some of the key benefits:
Do you know how to choose a good quality underfloor heating panel?
July 18, 2025
Choosing high-quality underfloor heating XPS boards is super important for the energy saving and environmental friendliness of your underfloor heating.
July 18, 2025
Tile Backer boards excel in waterproofing. Made from inorganic materials, they eliminate concerns about water penetration, deformation, or loss of structural strength.
Contact Us
If you are interested in our products or would like to learn more information, pleaseContact Us
Mob. :
+86 190 2656 5535
+86 190 2656 5535
E-mail:
CONTACT
Request A Quote or More Information?
Simply fill out the application form and tell us what you need for a custom solution. We will get back to you as soon as possible.
Custom Battery RequestREATED PRODUCTS
