Castor oil-based polyolsfluorinated polyether polyololeophobichydrophobicpolyurethaneCHAIN-EXTENDERSPOLYURETHANESURFACEUVRESISTANCEA novel castor oil-based polyols with fluorine-containing pendant groups (CO-FPOL) has been synthesized through ring-opening polymerization from castor oil (CO), propylene oxide (...
1) castor oil-polyether polyol 蓖麻油聚醚多元醇1. Chemical structure of castor oil-polyether polyols was analyzed by 1HNMR and FTIR. 研究结果表明:随着蓖麻油聚醚多元醇分子量的增加,其聚氨酯弹性体的扯断伸长率逐渐增加,拉伸强度、撕裂强度和硬度逐渐降低;同时,热稳定性提高,硬段的结晶熔融温度和结晶度...
Although various vegetable oils have been utilized to produce polymers, castor oil surpasses other vegetable oils, as it does not compete with the food industry as it is nonedible and as it is a natural polyol and has been used for polyurethane synthesis. Because of the versatility of castor...
Castor oil is the only naturally occurring polyol that possesses hydroxyl groups. Castor oil based polyurethane is a widely useful material as it possesses good flexibility and elasticity because of the presence of a long fatty acid chain and leads itself as a thermosetting type material due to ...
Castor oil is valuable due to its high ricinoleic acid (RA) content, which is used in various applications in the chemical industry. The hydroxyl functionality of RA makes the castor oil a natural polyol, providing oxidative stability to the oil and a relatively high shelf life compared to ...
多元醇/酸 Polyol / Acid 清单 胺类产品 Amine 清单 丙烯酸单体/交联单体/功能单体 清单 二异氰酸酯 DI 聚四亚甲基醚二醇 PTMEG 聚己内酯多元醇 PCL 聚碳酸酯二元醇 PCDL 生物基多元醇 小分子醇 Alcohols 小分子酸 Acids 有机锡催化剂 Organotin Catalysts ...
The castor-based polyols included castor oil, hydroxylated castor oil, technical glycerol-, penta-erythritol-, and sorbitol monoricinoleates, and N,N- bis (2-hydroxyethyl) ricinoleamide.The last of these yielded the best foams when used as the sole polyol component added to the prepolymer. ...
Synthesis and properties of isocyanate curable millable polyurethane elastomers based on castor oil as a renewable resource polyol Eur. Poly. J. (2004) S.H. Botros et al. Effect of brown vulcanized vegetable oil on ozone resistance, aging and flow of rubber compounds Rubber Chem. Technol. (...
United States Patent US8110621 Note: If you have problems viewing the PDF, please make sure you have the latest version ofAdobe Acrobat. Back to full text
This work involves the study of mechanical and antibacterial properties of auxetic polyurethane (APU) foams synthesized using castor oil (CO) to ascertain its suitability as a seat cushion in wheelchairs. Firstly, CO-based PU foams (PU-CO) were synthesized by substituting 25% synthetic polyol wit...