In this work, three soybean oil internal emulsifiers with different −OH functionalities (203.03 ∼ 219.45 mg KOH·g⁻¹) were prepared via the ring-opening reaction of epoxidized soybean oil (ESO) attacked by phosphoric acid. The soybean oil internal emulsifiers and castor oil (C.O) were employed to produce an array of DMPA- (dimethylol propanoic acid-) free anionic waterborne polyurethane dispersions (PUDs) with high bio-based content (69.2%) by utilizing the phosphoryl groups in ionic form. The curing films exhibited good mechanical properties, thermal stability, and multifunctionality (degradability, fluorescence, and anticorrosion). The films (WPU-P5, WPU-P10, and WPU-P15) can be completely degraded in 4.5 wt% NaOH solution for 10 h at room temperature. In addition, the films also displayed fluorescence under 365 nm UV irradiation, and the change of fluorescent intensity during material stretching and damage, which hence could be used to detect material tensile behavior and material damage. Due to the corrosion inhibition performance of the phosphoryl group and its excellent adhesion to the metal substrate, the WPU-P15 film had the best corrosion resistance. The adhesive capacity of the films as pressure sensitive adhesive was characterized by the shear strength test, hanging weight time and peeling test. The WPU-P10 film had a shear strength of 1.66 MPa, a hanging time of 1 kg weight up to 10 h, and a peel stress of 0.67 MPa. The WPU-P15 film was also applied in strain sensing to detect human activity. These studies are bound to further expand the application range of vegetable oil-based WPU materials.

在这项工作中，三种具有不同-OH官能度的大豆油内乳化剂（203.03 ∼ 219.45 mg KOH·g ⁻¹) 是通过磷酸攻击的环氧化大豆油 (ESO) 的开环反应制备的。大豆油内乳化剂和蓖麻油 (CO) 用于生产一系列 DMPA-（二羟甲基丙酸-）游离阴离子水性聚氨酯分散体（PUD），其生物基含量高（69.2%），利用磷酰基离子形式。固化膜表现出良好的机械性能、热稳定性和多功能性（可降解性、荧光性和防腐性）。这些薄膜（WPU-P5、WPU-P10 和 WPU-P15）可以在室温下在 4.5 wt% NaOH 溶液中完全降解 10 小时。此外，薄膜在365 nm紫外光照射下还显示出荧光，以及材料拉伸和损伤过程中荧光强度的变化，因此可用于检测材料拉伸行为和材料损坏。由于磷酰基团的缓蚀性能和对金属基体优异的附着力，WPU-P15薄膜具有最好的耐腐蚀性能。通过剪切强度试验、吊重时间和剥离试验表征薄膜作为压敏胶的粘合能力。WPU-P10 薄膜的剪切强度为 1.66 MPa，1 kg 重量的悬挂时间长达 10 h，剥离应力为 0.67 MPa。WPU-P15 薄膜还应用于应变传感以检测人类活动。这些研究必将进一步扩大植物油基WPU材料的应用范围。WPU-P15薄膜的耐蚀性最好。通过剪切强度试验、吊重时间和剥离试验表征薄膜作为压敏胶的粘合能力。WPU-P10 薄膜的剪切强度为 1.66 MPa，1 kg 重量的悬挂时间长达 10 h，剥离应力为 0.67 MPa。WPU-P15 薄膜还应用于应变传感以检测人类活动。这些研究必将进一步扩大植物油基WPU材料的应用范围。WPU-P15薄膜的耐蚀性最好。通过剪切强度试验、吊重时间和剥离试验表征薄膜作为压敏胶的粘合能力。WPU-P10 薄膜的剪切强度为 1.66 MPa，1 kg 重量的悬挂时间长达 10 h，剥离应力为 0.67 MPa。WPU-P15 薄膜还应用于应变传感以检测人类活动。这些研究必将进一步扩大植物油基WPU材料的应用范围。WPU-P15 薄膜还应用于应变传感以检测人类活动。这些研究必将进一步扩大植物油基WPU材料的应用范围。WPU-P15 薄膜还应用于应变传感以检测人类活动。这些研究必将进一步扩大植物油基WPU材料的应用范围。