SAMPE Journal - March/April 2023 - 30
FEATURE
THERMOSET RESINS AND
PERFORMANCE
Novel Environmentally Friendly Bio-Based Thermoset
Resins and Performance
Yongning Liu and Mitra Ganewatta
Ingevity Corporation
North Charleston, SC
ABSTRACT
Among thermosetting materials unsaturated polyesters and
vinyl esters are the most common resins used in the market
for a large variety of applications due to their practical and
economic advantages, however, most thermosetting resins are
derived from petroleum sources. With the increasing desire to
move toward more environmentally friendly and sustainable
" green " feedstocks, use of biologically derived feedstocks to
develop bio-based thermoset resins has attracted increasing
attention.
Distilled tall oils (DTO), mainly composed of tall oil fatty
acids and rosin acids, are bio- refinery products obtained as
co-product in Kraft wood pulping. In this work, a series of
new bio-based DTO vinyl ester resins were developed. These
resins were cured through free radical mechanism and their
performance was evaluated including cure properties (gel time,
cure time, exothermic peak temperature at room and elevated
temperatures), physical and thermal properties (tensile
strength, tensile modulus, tensile elongation, Tg
from dynamic
mechanical analysis), polymerization shrinkage, and surface
tackiness, etc. The study showed that well balanced properties
could be achieved from these DTO-derived vinyl ester resins.
30 | SAMPE JOURNAL | MARCH APRIL 2023
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SAMPE Journal - March/April 2023
Table of Contents for the Digital Edition of SAMPE Journal - March/April 2023
Contents
SAMPE Journal - March/April 2023 - Cover1
SAMPE Journal - March/April 2023 - Cover2
SAMPE Journal - March/April 2023 - Contents
SAMPE Journal - March/April 2023 - 2
SAMPE Journal - March/April 2023 - 3
SAMPE Journal - March/April 2023 - 4
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SAMPE Journal - March/April 2023 - 32
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SAMPE Journal - March/April 2023 - Cover3
SAMPE Journal - March/April 2023 - Cover4
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