TY - JOUR
T1 - Synthesis, Monomer Removal, Modification, and Coating Performances of Biobased Pentamethylene Diisocyanate Isocyanurate Trimers
AU - Zeng, Jinlei
AU - Yang, Yue
AU - Tang, Yibo
AU - Xu, Xu
AU - Chen, Xu
AU - Li, Ganlu
AU - Chen, Kequan
AU - Li, Hui
AU - Ouyang, Pingkai
AU - Tan, Weimin
AU - Ma, Jianjun
AU - Liu, Yaozong
AU - Liang, Ruiyuan
N1 - Publisher Copyright:
© 2022 American Chemical Society
PY - 2022/2/16
Y1 - 2022/2/16
N2 - The new green biobased pentamethylene diisocyanate (PDI) trimer curing agent has lower-life-cycle carbon emissions than the petrochemical-based hexamethylene diisocyanate (HDI) trimer curing agent, and its performance is similar to that of petrochemical-based products. This work focused on the synthesis, allophanate modification, free PDI monomer removal, and coating performances of PDI isocyanurate trimers. The results showed that optimal synthesis of PDI isocyanurate trimers used 2-hydroxypropyltrimethylisooctanoate ammonium salt (TMR) as a catalyst with 0.4 wt ‰ added and a reaction time of 120 min. The best free PDI monomer removal by molecular distillation used a removal temperature of 130 °C, a scraper speed of 350 rpm, and a feed rate of 3 mL·min-1, with two total removals. Self-made and allophanate-modified PDI isocyanurate trimers showed high values in physical and chemical properties. The water resistance, acid and alkali resistance, and aging resistance of the self-made and allophanate-modified PDI isocyanurate trimers were similar to or even better than those of petrochemical-based HDI products. These results indicate the application potential of biobased PDI-trimer curing agents.
AB - The new green biobased pentamethylene diisocyanate (PDI) trimer curing agent has lower-life-cycle carbon emissions than the petrochemical-based hexamethylene diisocyanate (HDI) trimer curing agent, and its performance is similar to that of petrochemical-based products. This work focused on the synthesis, allophanate modification, free PDI monomer removal, and coating performances of PDI isocyanurate trimers. The results showed that optimal synthesis of PDI isocyanurate trimers used 2-hydroxypropyltrimethylisooctanoate ammonium salt (TMR) as a catalyst with 0.4 wt ‰ added and a reaction time of 120 min. The best free PDI monomer removal by molecular distillation used a removal temperature of 130 °C, a scraper speed of 350 rpm, and a feed rate of 3 mL·min-1, with two total removals. Self-made and allophanate-modified PDI isocyanurate trimers showed high values in physical and chemical properties. The water resistance, acid and alkali resistance, and aging resistance of the self-made and allophanate-modified PDI isocyanurate trimers were similar to or even better than those of petrochemical-based HDI products. These results indicate the application potential of biobased PDI-trimer curing agents.
UR - http://www.scopus.com/inward/record.url?scp=85124548147&partnerID=8YFLogxK
U2 - 10.1021/acs.iecr.1c04673
DO - 10.1021/acs.iecr.1c04673
M3 - 文章
AN - SCOPUS:85124548147
SN - 0888-5885
VL - 61
SP - 2403
EP - 2416
JO - Industrial and Engineering Chemistry Research
JF - Industrial and Engineering Chemistry Research
IS - 6
ER -