林产化学与工业2026，Vol.46Issue(4)：27-34,8.DOI:10.20195/j.issn.0253-2417.2025050
可回收蓖麻油基聚氨酯泡沫的制备与性能研究
Preparation and Properties of Recyclable Castor Oil-based Polyurethane Foam
摘要
Abstract
Castor oil(CO)was used as the raw material to prepare castor oil-based polyphenol(COG)via Friedel-Crafts alkylation.Subsequently,castor oil-based polyurethane foam materials(COGF)were fabricated by reacting COG with CO and polymethylene polyphenylene isocyanate(PM-200).When the addition amounts of COG were 0,20％,40％,60％,80％,and 100％,COF,COGF-1,COGF-2,COGF-3,COGF-4,and COGF-5 were produced respectively.The structure and properties of COGF were characterized by Fourier-transform infrared spectroscopy(FT-IR),thermogravimetry(TG),variable-temperature infrared spectroscopy(VTIR),and other techniques.The results demonstrated the successful synthesis of COG and COGF.With increasing COG loading,the content of rigid cyclic structures in the polyurethane system rose,leading to enhanced mechanical properties of COGF.Compared with COF(without COG addition),the compressive strength of COGF-3 with60％COG added was377.6 kPa,and its specific compressive strength was 2 971 N·m/kg,which were 395％and 389％higher respectively than those of COF without COG added.COGF-3 had the lowest thermal conductivity,with a thermal conductivity coefficient of 0.036 W/(m·K),providing the best thermal insulation performance.The series of COGF materials exhibited good thermal stability,where COGF-5 has a carbon residue rate of 29.2％at 800℃,which was 317％higher than that of COF.VTIR analysis revealed that the decomposition temperature range of the phenol-carbamate linkages in COGF was 80-120℃,which enabled the COGF materials to be reprocessed through dynamic exchange reactions at the elevated temperatures.COGF-5 was pulverized and recovered by hot pressing at 160℃and 20 MPa to obtain castor oil-based polyurethane foam film COGFF-5,exhibiting a tensile strength of 13.4 MPa and a stress relaxation activation energy of 140.67 kJ/mol.Notably,considerable tensile strength was retained even after five cycles of recovery.关键词
蓖麻油/聚氨酯泡沫/可回收/酚-氨基甲酸酯键Key words
castor oil/polyurethane foam/recyclable/phenol-carbamate bonds分类
化学化工引用本文复制引用
谭丽,杨蕊,宋飞,潘政,周永红,张猛..可回收蓖麻油基聚氨酯泡沫的制备与性能研究[J].林产化学与工业,2026,46(4):27-34,8.基金项目
国家自然科学基金资助项目(32371825) （32371825）
国家林业和草原局林草科技创新发展研究项目(2024132008) （2024132008）
