Premium
Aramid pulp treated with imidazolium ionic liquids as a filler in rigid polyurethane bio‐foams
Author(s) -
Kerche Eduardo Fischer,
Silva Vinícius Demétrio,
Silveira Jankee Gabriela,
Schrekker Henri Stephan,
Avila Delucis Rafael,
Irulappasamy Siva,
Amico Sandro Campos
Publication year - 2021
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.50492
Subject(s) - polyurethane , materials science , composite material , thermal stability , aramid , ionic liquid , pulp (tooth) , chloride , compressive strength , chemistry , fiber , organic chemistry , catalysis , medicine , pathology , metallurgy
This article reports an aramid pulp (AP) treated with two ionic liquids (IL), namely 1‐n‐butyl‐3‐methylimidazolium chloride (C 4 .Cl) and 1‐carboxymethyl‐3‐methylimidazolium chloride (HO 2 C), and its use as a filler in reinforced rigid polyurethane foams (RPUF). The RPUF were incorporated with the treated AP at three weight fractions (c.a. 0.1, 0.5, and 1.0 wt%) and were produced by the free rising method. The results showed that the studied IL promoted a better interaction between the AP and the RPUF system, which increased the overall reactivity, imparting a higher cell anisotropy. This also yielded a positive effect in mechanical properties and thermal stability of the RPUF. Compared to the neat RPUF, outstanding increases of approximately 50 and 20% were achieved in compressive modulus and strength, respectively. In all, the use of IL promoted increased compatibility between matrix and reinforcement, especially that HO 2 C IL.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom