当前位置：
X-MOL 学术
›
ACS Sustain. Chem. Eng.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Tailoring the Performance of Vegetable Oil-Based Waterborne Polyurethanes through Incorporation of Rigid Cyclic Rings into Soft Polymer Networks
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2019-12-27 , DOI: 10.1021/acssuschemeng.9b05477 Haiyan Liang 1 , Yanchun Li 1 , Siying Huang 1 , Kaixi Huang 1 , Xueyi Zeng 1 , Qianwen Dong 1 , Chengguo Liu 2 , Pengju Feng 3 , Chaoqun Zhang 1
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2019-12-27 , DOI: 10.1021/acssuschemeng.9b05477 Haiyan Liang 1 , Yanchun Li 1 , Siying Huang 1 , Kaixi Huang 1 , Xueyi Zeng 1 , Qianwen Dong 1 , Chengguo Liu 2 , Pengju Feng 3 , Chaoqun Zhang 1
Affiliation
|
Vegetable oil-based polymeric materials always suffer from relatively poor performance, such as lower tensile strength and glass transition temperatures, than petroleum-based polymeric materials, which greatly limit their practical applications. In this study, octahydro-2,5-pentalenediol (OPD) was synthesized from naturally occurring citric acid and used together with castor oil as the polyol blends for the production of bio-based waterborne polyurethane (PU) dispersions (PUDs). The effects of the OPD contents on the particle size and ζ potential of the resulting polyurethane dispersion, and the thermal stability, mechanical properties, and hydrophilicity of the resulting polyurethane films were systematically investigated. Taking advantage of the rigid cyclic structures of the OPD and the flexible fatty acid chain of castor oil, waterborne polyurethane (WPU) films with tailorable mechanical performance ranging from elastomeric polymers to rigid plastics were successfully prepared and characterized. The tensile strength of the samples increases from 9.5 to 22.3 MPa with the ratio between OPD and castor oil increasing from 0:10 to 5:5, whereas their elongation at break decreases from 192 to 12%. A significant increase in the glass transition temperature, transparency, and anticorrosive properties was observed for the resulting polyurethane films with increasing the OPD content. However, the thermal stability of the PU films exhibited a slight decrease as the OPD content increased. Moreover, the water contact angle exhibited a slight increase for the polyurethane films prepared from polyol blends compared to the WPU film prepared from pure castor oil. This work provides a novel route to tailor the performance of vegetable oil-based waterborne polyurethanes through the incorporation of rigid cyclic rings into soft polymer networks.
中文翻译：
通过将刚性环结合到软聚合物网络中来调整植物油基水性聚氨酯的性能
与石油基聚合物材料相比，植物油基聚合物材料始终具有相对较差的性能，例如较低的拉伸强度和玻璃化转变温度，这极大地限制了它们的实际应用。在这项研究中，八氢-2,5-戊烯二醇（OPD）是由天然柠檬酸合成的，并与蓖麻油一起用作多元醇共混物，用于生产生物基水性聚氨酯（PU）分散体（PUD）。系统研究了OPD含量对所得聚氨酯分散体的粒径和ζ电位以及所得聚氨酯膜的热稳定性，机械性能和亲水性的影响。利用OPD的刚性环状结构和蓖麻油的柔性脂肪酸链，成功地制备并表征了具有可调节机械性能的水性聚氨酯（WPU）膜，其机械性能从弹性体聚合物到硬质塑料。样品的抗拉强度从9.5 MPa增加到22.3 MPa，OPD和蓖麻油之间的比例从0:10增加到5：5，而断裂伸长率从192％降低到12％。对于所得的聚氨酯膜，随着OPD含量的增加，其玻璃化转变温度，透明性和抗腐蚀性显着提高。然而，随着OPD含量的增加，PU膜的热稳定性显示出轻微的下降。而且，与由纯蓖麻油制备的WPU膜相比，由多元醇共混物制备的聚氨酯膜的水接触角略有增加。
更新日期：2019-12-27
中文翻译：
通过将刚性环结合到软聚合物网络中来调整植物油基水性聚氨酯的性能
与石油基聚合物材料相比，植物油基聚合物材料始终具有相对较差的性能，例如较低的拉伸强度和玻璃化转变温度，这极大地限制了它们的实际应用。在这项研究中，八氢-2,5-戊烯二醇（OPD）是由天然柠檬酸合成的，并与蓖麻油一起用作多元醇共混物，用于生产生物基水性聚氨酯（PU）分散体（PUD）。系统研究了OPD含量对所得聚氨酯分散体的粒径和ζ电位以及所得聚氨酯膜的热稳定性，机械性能和亲水性的影响。利用OPD的刚性环状结构和蓖麻油的柔性脂肪酸链，成功地制备并表征了具有可调节机械性能的水性聚氨酯（WPU）膜，其机械性能从弹性体聚合物到硬质塑料。样品的抗拉强度从9.5 MPa增加到22.3 MPa，OPD和蓖麻油之间的比例从0:10增加到5：5，而断裂伸长率从192％降低到12％。对于所得的聚氨酯膜，随着OPD含量的增加，其玻璃化转变温度，透明性和抗腐蚀性显着提高。然而，随着OPD含量的增加，PU膜的热稳定性显示出轻微的下降。而且，与由纯蓖麻油制备的WPU膜相比，由多元醇共混物制备的聚氨酯膜的水接触角略有增加。
京公网安备 11010802027423号