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Lignin-based polymers with enhanced melt extrusion ability

Patent ·
OSTI ID:1892609
;
A solid polymer blend material comprising: (i) lignin; and (ii) a polyamide having a melting point of no more than 240° C. and which is below the decomposition temperature of the lignin; wherein said lignin is homogeneously dispersed in said polyamide. Methods for producing the blend material are also described. Methods for producing objects made of the blend material by melt extrusion are also described, comprising: (a) melt blending components (i) and (ii) to form a polymer blend in which components (i) and (ii) are homogeneously blended, wherein the polymer blend exhibits a melt viscosity of no more than 2000 Pa·s at a shear rate of 100-1000 s−1 and when heated to a temperature of no more than 240° C.; and; (b) forming an object made of said polymer blend material.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-00OR22725
Assignee:
UT-Battelle, LLC (Oak Ridge, TN)
Patent Number(s):
11,248,121
Application Number:
16/257,294
OSTI ID:
1892609
Country of Publication:
United States
Language:
English

References (3)

A path for lignin valorization via additive manufacturing of high-performance sustainable composites with enhanced 3D printability journal December 2018
Fabrication of continuous carbon, glass and Kevlar fibre reinforced polymer composites using additive manufacturing journal August 2017
Crystalline Morphology and Polymorphic Phase Transitions in Electrospun Nylon-6 Nanofibers journal July 2007

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