Polyvinyl chloride (PVC) is a material related to a group of thermoplastics (Thermoplastics are plastics, which then form the product retain the ability to be recycled).
Pure PVC is 43% produced from ethylene (a petrochemical product) and 57% from bound chlorine obtained from table salt. PVC pvc ramen stands out as a powder.
To prepare window profiles, stabilizers, modifiers, pigments and auxiliary additives are added to the powdered PVC.
These elements have an impact on these properties of window profiles like light resistance, vis strength of weather effects, color shade, plane quality, weldability, etc.
As stabilizers mainly used lead, which is in PVC bound, i.e. at the bio level of the passive state. Recently, a number of companies began to apply an even more harmless compound of calcium and zinc.
To increase the impact strength (impact strength is the ability of the material to absorb mechanical energy in the process of deformation and destruction under the impact load) in the polymer materials going to the manufacture of system profiles, add modifiers that increase the strength of the window parts during their processing.
In consequence of this, sometimes PVC, used for the manufacture of window profiles, called modified.
It is necessary to note, that’s actually what the content of vinyl chloride monomer per 1 kg of the profile is not higher than 1 mg and their separation in the preparation of profiles is not possible.
PVC Windows are highly flammable and self-extinguishing material. It is resistant to alkalis, acids, lime, as well as to atmospheric influences. Based on all the above, we see, it is actually that the material used for the manufacture of plastic Windows, is safe for humans. This is confirmed by the hygiene certificates that have any manufacturer profiles.
Plastic Windows are quite likely to be used in industrial, public and residential buildings, there are literally no hygienic restrictions on their use.
Another thing, it is actually that the Windows of each material, in fact that the number of PVC and must meet a whole list of technical requirements, such as: thermal conductivity, ensuring normalized air exchange, sound insulation, etc.
The scope of their application is defined to data.