Location: GLO - Global
This dataset represents the production of unsaturated polyester resins (UPR).
This resin belongs to the unsaturated polyester composite resin category. They are often used as matrix for composite materials, when applied on glass fibre or natural fibres (ex: flax).
The perimeter of this data includes the manufacturing of the resin from raw materials.
Resin type is dicyclopentadiene (DCPD) based unsaturated polyester resin (UPR).
Typical characteristics:
Appearance: Homogeneous liquid resin.
Main applications: Industrial parts.
Other possible applications: Sanitary, polymere concrete, marine.
Specific gravity at 20 °C: 1,10 g/cm3
Viscosity (mPa.s): V25 - Brookfield at 23 oC, Spindle Speed 50rpm:
400-500.
Solid content (%) PC53: 58-62.
They are among the most used thermoset resins. They have uses in many applications. The DCPD resins present lower styrene emissions during use, compared to other resins.
The use of one resin over another depends on the user required physical caracteristics.
Data for the life cycle inventory for this resin were primarly taken from the Ernst & Young Report: "Life cycle assessment of four generic unsaturated polyester (UP) resins and one vinyl ester (VE) resins", Revised version, September 2014. The following companies participated in the study: Reichhold, Polynt Composites, Ashland Performance Materials.
Undefined unit processes (UPRs) are the unlinked, multi-product activity datasets that form the basis for all of the system models available in the ecoinvent database. This is the way the datasets are obtained and entered into the database by the data providers. These activity datasets are useful for investigating the environmental impacts of a specific activity (gate-to-gate), without regard to its upstream or downstream impacts.