Raw Material Source/Animal Husbandry and Region
Each Insulation example material has different Raw Material Source options available for customization.
If only the general fiber type is known, as described above, then the default selection should be left unchanged.
Polypropylene (PP), fossil fuel based, for insulation is the default selection and should be selected for all Polypropylene insulation materials. In this process Polypropylene is polymerised from propene (propylene), which is extracted by cracking naphtha or gas oil in a steam-cracker.
- Polyethylene terephthalate (PET), fossil fuel based, for insulation is the default selection for polyester polymer. This process models PET manufacturing via the ethylene glycol and terephthalic acid synthesis route, which is the most common method used to manufacture for PET fiber.
- Polyethylene terephthalate (PET), mechanically recycled, for insulation material should be selected if the polyester polymer is converted from mechanically recycled PET bottle flakes to recycled PET pellets before being converted into PET fiber. If the specific recycling technology is unknown, then the mechanical recycling process detailed above is the most likely processing type and should be selected.
- Polyethylene terephthalate (PET), semi-mechanically recycled, for insulation should be selected if the PET polymer is converted from mechanically recycled PET bottle flakes to recycled PET pellets before being converted into PET fiber. In this process, an additional ethylene glycol treatment is used to purify the polymer.
- Polyethylene terephthalate (PET), chemically (BHET) recycled, for insulation should be selected if the PET polymer is chemically depolymerized via a glycolysis process. In this production method, Bis(2-Hydroxyethyl) terephthalate (BHET) will be the primary intermediate oligomer that is produced. After depolymerization, the BHET is filtered and re-polymerized back into PET. This process may be selected for any PET chemical recycling where a glycolysis reaction is the primary depolymerization route.
- Polyethylene terephthalate (PET), chemically (methanolysis) recycled, for insulationshould be selected if the PET polymer is chemically depolymerized via a methanolysis process. In this production method, PET is converted into dimethyl terephthalate (DMT) and ethylene glycol monomers. These are then re-polymerized back into PET. This process is the best proxy for PET chemical recycling that uses hydrolysis (depolymerization to terephthalic acid and ethylene glycol) and other alcoholysis depolymerization routes.
- Duck farming, conventional is the default selection for duck down and should be used unless duck down is certified and traceable as recycled content.
- Duck down, recycled should only be selected when the down source is certified and traceable as 100% recycled content. If the raw material content is a blend of recycled and virgin down, then a Custom Material Blend should be created with the known ratio of recycled and virgin down.
- Goose farming, conventional is the default selection for goose down and should be used unless goose down is certified and traceable as recycled content.
- Goose down, recycled should only be selected when the down source is certified and traceable as 100% recycled content.If the raw material content is a blend of recycled and virgin down, then a Custom Material Blend should be created with the known ratio of recycled and virgin down.
- Wool, from sheep, fine-medium and superfine, Australia, for textile is the default selection for wool fibers and should be used unless using recycled wool fiber.
- Wool fiber, recycled from waste textile, for textiles should be selected when using mechanically recycled wool fiber. This process is modeled from waste textiles and includes collection and processing impacts.