Assertion: lignin | /r/HasProperty | modified
Facets:
value: chemically
type: MANNER
value: prior to extrusion
type: OTHER
Source sentences:
text: One problem remains, however, independent of whether a lignin was modified or not:
text: The oldest theory, formalized in 1938, considers humus to form when lignins decompose and are modified to form humic substances resistant to further decomposition.
text: In order to make use of the lignin, it is essential that the lignin is soluble in the water and after it is modified chemically, the lignin product that is obtained is lignin-sulphonate which is used extensively in the dispersant applications and the binders and adhesive applications.
text: The literature can be separated into three main areas: (1) carbon fiber from lignins without any additives or chemical modifications applied prior to extrusion; (2) carbon fiber from lignins that were either coextruded, or chemically modified prior to extrusion; and (3) efforts directed towards the manufacture of submicron carbon fibers from lignin.