Manufacturing and Application of PIR Foam sheets

Plolyisocyanurate is also referred as PIR. It is basically a thermoset plastic, mostly developed as foam and used for tough thermal insulations. In terms of chemical structure, it is quite equivalent with polyurethane or PUR, with the only difference is its greater proportion of methylene diphenyl diisocyanate.

Apart from this, it differs as the polyester-derived polyol is also used in its reaction. It can also be differentiated from PUR in terms of the usage of catalysts and additives in PIR formulations.

Application:

PIR is one of the most preferred insulation materials in modern times. Greater usage of Polyisocyanurate Rigid Board for thermal insulation can be a perfect example in this regard.  Obviously, these products possess greater thermal conductivity that is essential for something to be used as thermal insulation material. Polyisocyanurate foam panels laminated with best quality aluminum foil are also considered for fabrication purpose. To be specific, these are mostly preferred for fabrication of pre-insulated duct that is used with heating, ventilation and air conditioning systems.

Industries where these are most used:

Manufacture of PIR sheets can be thoroughly optimized these days as per the requirement of a specific application. Some applications also require multiple layering. Talking about the most frequent application of these PIR sheets, these are mostly preferred by the heavy-duty manufacturers in the industries like aerospace, defense, etc. On a technical note, these are mostly used for mold formation.

These are also used for tooling purpose in most cases. Being used as composite core, these are mostly preferred to be used for protecting the explosive materials. It can well protect the radioactive materials as well. In many cases, these are also used as the wood alternative for dimensional symbols. 

PIR panels in desired form with corrosion resistance characteristics and ridged steel facings joined with central PIR foam are mostly used as the roof top insulations. It can also be used for insulating the walls of warehouses, factories, official houses, etc. Polyisocyanurate Foam Sheets are also used for industrial and commercial piping insulation solutions.

Apart from the heavy-duty applications as explained above, these are also quite used for comparatively lighter applications. Comparatively softer foam sheets are preferred in such occasions.

Construction:

PIR foams can be referred as the insulation-grade foams as well. These are mostly developed in large blocks through consistent extrusion. The blocks thus prepared are then put within the cutting devices to prepare the sheets and different shapes as per the requirement. These are developed in different volumes as per the requirement.

With optimizing manufacturing standard, these devices are getting quite cost-effective as well. Optimized PIR foams have turned out to be most useful in composite constructions. The larger blocks of these sheets are prepared either through a consistent extrusion process or in a batch mode.

After being prepared in desired pattern, these are cut as per the sheet requirement or as per the desired shape. It can be independently molded as well in to distinct shapes in case of any specific requirement.