Abstract
In order to investigate the properties of soft-feel coating paints for automotive interior plastics, the characteristics of coating systems were systematically determined by changing the main resin composition, isocyanate type cross-linker ratio, and curing temperature conditions. During the thermal curing process, the change in cross-linked network structure of coating systems was analyzed from the rheological properties using a rotational rheometer and curing behaviors of thin coating films were scrutinized by a rigid-body pendulum tester. After finalizing the curing process, the change in the amount of functional groups, according to the ratio (NCO/OH ratio) between main resin and crosslinker, was checked by Fourier transform infrared spectroscopy (FTIR). Also, thermal and mechanical properties of cured films were measured via dynamic mechanical analysis and nano-indentation test. Through these analyses, the relationship between curing characteristics of soft-feel paints during the curing process and various properties of final cured coating films was elucidated.
| Original language | English |
|---|---|
| Pages (from-to) | 303-310 |
| Number of pages | 8 |
| Journal | Polymer (Korea) |
| Volume | 42 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2018 Mar 1 |
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Keywords
- Crosslinker ratio
- Nano-indentation test
- Real-time rheological properties
- Soft-feel coatings
- Thermal curing
ASJC Scopus subject areas
- Chemical Engineering(all)
- Polymers and Plastics
- Materials Chemistry
Cite this
Relationship between curing characteristics and rheological/mechanical properties of soft-feel coatings for automotive plastic parts. / Yoon, Sung Ho; Lee, Dong Geun; Kim, Na Hee; Jung, Kevin Injoe; Lee, Choon Soo; Lee, Ji Won; Lee, Gil Sun; Jung, Hyun Wook.
In: Polymer (Korea), Vol. 42, No. 2, 01.03.2018, p. 303-310.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Relationship between curing characteristics and rheological/mechanical properties of soft-feel coatings for automotive plastic parts
AU - Yoon, Sung Ho
AU - Lee, Dong Geun
AU - Kim, Na Hee
AU - Jung, Kevin Injoe
AU - Lee, Choon Soo
AU - Lee, Ji Won
AU - Lee, Gil Sun
AU - Jung, Hyun Wook
PY - 2018/3/1
Y1 - 2018/3/1
N2 - In order to investigate the properties of soft-feel coating paints for automotive interior plastics, the characteristics of coating systems were systematically determined by changing the main resin composition, isocyanate type cross-linker ratio, and curing temperature conditions. During the thermal curing process, the change in cross-linked network structure of coating systems was analyzed from the rheological properties using a rotational rheometer and curing behaviors of thin coating films were scrutinized by a rigid-body pendulum tester. After finalizing the curing process, the change in the amount of functional groups, according to the ratio (NCO/OH ratio) between main resin and crosslinker, was checked by Fourier transform infrared spectroscopy (FTIR). Also, thermal and mechanical properties of cured films were measured via dynamic mechanical analysis and nano-indentation test. Through these analyses, the relationship between curing characteristics of soft-feel paints during the curing process and various properties of final cured coating films was elucidated.
AB - In order to investigate the properties of soft-feel coating paints for automotive interior plastics, the characteristics of coating systems were systematically determined by changing the main resin composition, isocyanate type cross-linker ratio, and curing temperature conditions. During the thermal curing process, the change in cross-linked network structure of coating systems was analyzed from the rheological properties using a rotational rheometer and curing behaviors of thin coating films were scrutinized by a rigid-body pendulum tester. After finalizing the curing process, the change in the amount of functional groups, according to the ratio (NCO/OH ratio) between main resin and crosslinker, was checked by Fourier transform infrared spectroscopy (FTIR). Also, thermal and mechanical properties of cured films were measured via dynamic mechanical analysis and nano-indentation test. Through these analyses, the relationship between curing characteristics of soft-feel paints during the curing process and various properties of final cured coating films was elucidated.
KW - Crosslinker ratio
KW - Nano-indentation test
KW - Real-time rheological properties
KW - Soft-feel coatings
KW - Thermal curing
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UR - http://www.scopus.com/inward/citedby.url?scp=85046458836&partnerID=8YFLogxK
U2 - 10.7317/pk.2018.42.2.303
DO - 10.7317/pk.2018.42.2.303
M3 - Article
VL - 42
SP - 303
EP - 310
JO - Polymer (Korea)
JF - Polymer (Korea)
SN - 0379-153X
IS - 2
ER -