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2. Lignosulfonates - Wikipedia

   en.wikipedia.org/wiki/Lignosulfonates

   Kraft lignin from black liquor, which is produced in much higher amounts, may be processed into sulfonated lignin. The lignin is first precipitated by acidifying the liquor with CO 2 then washed (other methods for isolation exist). Reaction with sodium sulfite or sodium bisulfite and an aldehyde under a basic environment completes sulfonation.

3. Sodium lignosulfonate - Wikipedia

   en.wikipedia.org/wiki/Sodium_lignosulfonate

   It has preservative properties, and is used as an ingredient in animal feeds. It is also used for construction, ceramics, mineral powder, chemical industry, textile industry (leather), metallurgical industry, petroleum industry, fire-retardant materials, rubber vulcanization, organic polymerization. [1] It is a pepsin inhibitor. Vovac, J.A. et ...

4. Arboform - Wikipedia

   en.wikipedia.org/wiki/Arboform

   Arboform consists of the two most abundant natural materials: lignin (ca. 30%) and cellulose (ca. 60%). The remaining part is natural additives that function as plasticizers, dyes, antioxidants, fillers, etc. [4] It has a similar composition, appearance and properties to those of wood, but it can be melted upon heating and molded like a thermoplastic. [5]

5. Lignin characterization - Wikipedia

   en.wikipedia.org/wiki/Lignin_characterization

   The term "lignin characterization" (or "lignin analysis") refers to a group of activities within lignin research aiming at describing the characteristics of a lignin by determination of its most important properties. [1] Most often, this term is used to describe the characterization of technical lignins by means of chemical or thermo-chemical ...

6. Metal roof - Wikipedia

   en.wikipedia.org/wiki/Metal_roof

   Metal roofs can last up to 100 years, with installers providing 50-year warranties. [citation needed] Because of their longevity, most metal roofs are less expensive than asphalt shingles in the long term. [10] Metal roofing can consist of a high percentage of recycled material and is 100% recyclable. [11]

7. List of commercially available roofing materials - Wikipedia

   en.wikipedia.org/wiki/List_of_commercially...

   Roofing material is the outermost layer on the roof of a building, sometimes self-supporting, but generally supported by an underlying structure. A building's roofing material provides shelter from the natural elements. The outer layer of a roof shows great variation dependent upon availability of material, and the nature of the supporting ...