新型生物油基超支化酯类增塑剂的合成及其对聚氯乙烯软质薄膜的影响
Synthesis of a Novel Bio-Oil-Based Hyperbranched Ester Plasticizer and Its Effects on Poly(vinyl chloride) Soft Films.
作者信息
Chen Jie, Nie Xiaoan, Jiang Jianchun
机构信息
Institute of Chemical Industry of Forestry Products, National Engineering Laboratory for Biomass Chemical Utilization, and Key Laboratory of Biomass Energy and Material, Chinese Academy of Forestry, Nanjing, Jiangsu 210042, China.
Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing, Jiangsu 210042, China.
出版信息
ACS Omega. 2020 Mar 2;5(10):5480-5486. doi: 10.1021/acsomega.0c00119. eCollection 2020 Mar 17.
A novel hyperbranched ester plasticizer (SOHE) was synthesized from soybean oil. FTIR, H NMR, and C NMR spectroscopies were used to analyze the chemical structure of SOHE. SOHE was added into poly(vinyl chloride) (PVC). Thermal, mechanical, and dynamic mechanical properties of PVC samples were studied with thermal gravimetric analysis, dynamic mechanical analysis, and tensile tests. The results of SOHE substitution of petroleum-based dioctyl phthalate (DOP) in soft PVC samples were studied. The results indicated that PVC blends mixed with the obtained plasticizer showed higher thermal stability and flexibility. When DOP was completely replaced with SOHE, the , , and of the films were raised to 267.5, 275.3, and 338.0 °C, respectively. The plasticizing mechanism was also investigated. The volatility resistance and extraction were studied, which results indicated that the migration stability of PVC samples was significantly enhanced with the increasing amount of SOHE.
一种新型的超支化酯类增塑剂（SOHE）由大豆油合成。采用傅里叶变换红外光谱（FTIR）、氢核磁共振（¹H NMR）和碳核磁共振（¹³C NMR）光谱对SOHE的化学结构进行分析。将SOHE添加到聚氯乙烯（PVC）中。通过热重分析、动态力学分析和拉伸试验研究了PVC样品的热性能、力学性能和动态力学性能。研究了在软质PVC样品中用SOHE替代石油基邻苯二甲酸二辛酯（DOP）的效果。结果表明，与所得增塑剂混合的PVC共混物具有更高的热稳定性和柔韧性。当DOP被SOHE完全替代时，薄膜的起始分解温度（T₀）、最大分解温度（Tₘ）和终止分解温度（Tₑ）分别提高到267.5、275.3和338.0℃。还研究了增塑机理。对抗挥发性和萃取性能进行了研究，结果表明，随着SOHE用量的增加，PVC样品的迁移稳定性显著提高。
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