Synthesized the cold-resistant plasticizer epoxidized 1,6-hexanediol oleate and effects on the properties of polyvinyl chloride

IF 3.1 3区化学 Q2 POLYMER SCIENCE

Polymer Bulletin Pub Date : 2024-07-15 DOI:10.1007/s00289-024-05420-9

Kuiyun Dong, Caihong Xue, Hui Nan, Wenyan Huang, Heyan Zhong, Guangxi Liu, Guijun Yang, Shiai Xu, Jingjing Zhang

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Abstract

In order to solve the problem of plasticizers limited in alpine regions, in this paper, 1,6-hexanediol oleate (HD) was synthesized by a simple synthetic method using oleic acid and 1.6-hexanediol, and its epoxidation reaction was utilized to prepare a cold-resistant plasticizer (epoxidized 1,6-hexanediol oleate (EHD)) with excellent performances, which was structurally characterized by using Fourier transform infrared spectroscopy and 1HNMR. The properties of HD and EHD plasticized polyvinyl chloride (PVC) were tested and compared with dioctyl adipate (DOA). The results showed that the elongation at break, migration resistance and UV resistance of HD plasticized PVC films were slightly lower than those of DOA plasticized PVC films, but the temperature was 24.4 °C higher than that of DOA at 25% loss of mass, and the thermal stability was better; the epoxidized EHD plasticized PVC films showed 48.78% higher mechanical properties, 11.4 °C higher thermal stability at 25% loss of mass, higher migration resistance, compared with the DOA plasticized PVC films. The mechanical properties were 48.78% higher than those of DOA plasticized PVC films, the migration resistance was more stable in petroleum ether and anhydrous ethanol, and the UV resistance was better than that of DOA plasticized PVC films. Molecular dynamics simulations further verified the migration resistance of EHD/PVC in different solvents. In conclusion, EHD is suitable for low-temperature environments with excellent cold resistance, migration resistance and good stability.

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合成耐寒增塑剂环氧化 1,6- 己二醇油酸酯及其对聚氯乙烯性能的影响

为了解决高寒地区增塑剂受限的问题，本文利用油酸和 1.6-己二醇的简单合成方法合成了 1,6-己二醇油酸酯（HD），并利用其环氧化反应制备了一种性能优异的耐寒增塑剂（环氧化 1,6- 己二醇油酸酯（EHD）），利用傅里叶变换红外光谱和 1HNMR 对其结构进行了表征。测试了 HD 和 EHD 塑化聚氯乙烯（PVC）的性能，并与己二酸二辛酯（DOA）进行了比较。结果表明，HD增塑聚氯乙烯薄膜的断裂伸长率、抗迁移性和抗紫外线性能略低于DOA增塑聚氯乙烯薄膜，但在失重25%时的温度比DOA增塑聚氯乙烯薄膜高24.4 ℃，热稳定性更好；环氧化EHD增塑聚氯乙烯薄膜的力学性能比DOA增塑聚氯乙烯薄膜高48.78%，在失重25%时的热稳定性比DOA增塑聚氯乙烯薄膜高11.4 ℃，抗迁移性更高。其力学性能比 DOA 增塑聚氯乙烯薄膜高 48.78%，在石油醚和无水乙醇中的抗迁移性更稳定，抗紫外线性能优于 DOA 增塑聚氯乙烯薄膜。分子动力学模拟进一步验证了 EHD/PVC 在不同溶剂中的抗迁移性。总之，EHD 适用于低温环境，具有优异的耐寒性、抗迁移性和良好的稳定性。

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来源期刊

Polymer Bulletin 化学-高分子科学

CiteScore

6.00

自引率

6.20%

发文量

审稿时长

5.5 months

期刊介绍： "Polymer Bulletin" is a comprehensive academic journal on polymer science founded in 1988. It was founded under the initiative of the late Mr. Wang Baoren, a famous Chinese chemist and educator. This journal is co-sponsored by the Chinese Chemical Society, the Institute of Chemistry, and the Chinese Academy of Sciences and is supervised by the China Association for Science and Technology. It is a core journal and is publicly distributed at home and abroad. "Polymer Bulletin" is a monthly magazine with multiple columns, including a project application guide, outlook, review, research papers, highlight reviews, polymer education and teaching, information sharing, interviews, polymer science popularization, etc. The journal is included in the CSCD Chinese Science Citation Database. It serves as the source journal for Chinese scientific and technological paper statistics and the source journal of Peking University's "Overview of Chinese Core Journals."