Mechanical and barrier properties of polyvinyl chloride plasticized with dioctyl phthalate, epoxidized soybean oil, and epoxidized cardanol,Journal of Vinyl and Additive Technology

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Mechanical and barrier properties of polyvinyl chloride plasticized with dioctyl phthalate, epoxidized soybean oil, and epoxidized cardanol
Journal of Vinyl and Additive Technology ( IF 3.8 ) Pub Date : 2021-05-10 , DOI: 10.1002/vnl.21831
Sukanya Satapathy ₁ , Aruna Palanisamy ₁

Affiliation

Plasticized polyvinyl chloride (PVC) films were prepared by melt compounding and compression molding using epoxidized cardanol (EC), a biobased plasticizer and its plasticization effect was compared with epoxidized soybean oil (ESBO) and dioctyl phthalate (DOP). The mechanical, migration, thermal, and barrier properties of the plasticized films were compared. The effect of replacing DOP with EC on the properties of PVC films was also investigated. The tensile strength, elongation at break, tensile modulus and impact strength values of PVC/EC films were higher in comparison to PVC/DOP and PVC/ESBO films at a fixed plasticizer loading of 40 wt.%. Also, the films prepared with a mixture of DOP + EC showed higher tensile strength and elongation at break compared to that of films prepared with only DOP. The PVC/EC films showed good thermal stability and reduced oxygen transmission rate (OTR) compared to PVC/DOP films. The addition of graphene and nanoclay in the PVC/plasticizer system exhibited an increase in oxygen transmission. However, the oxygen barrier property of nano filler incorporated PVC/EC films was better than PVC/DOP films. All the films showed negligible water vapor transmission rate (WVTR).

中文翻译：

用邻苯二甲酸二辛酯、环氧化豆油和环氧化腰果酚增塑的聚氯乙烯的机械和阻隔性能

使用生物基增塑剂环氧化腰果酚 (EC) 通过熔融混炼和压缩成型制备了增塑聚氯乙烯 (PVC) 薄膜，并将其增塑效果与环氧化大豆油 (ESBO) 和邻苯二甲酸二辛酯 (DOP) 进行了比较。比较了增塑薄膜的机械、迁移、热和阻隔性能。还研究了用 EC 代替 DOP 对 PVC 薄膜性能的影响。与 PVC/DOP 和 PVC/ESBO 薄膜相比，PVC/EC 薄膜的拉伸强度、断裂伸长率、拉伸模量和冲击强度值在 40 wt.% 的固定增塑剂负载下更高。此外，与仅用 DOP 制备的薄膜相比，用 DOP + EC 的混合物制备的薄膜显示出更高的拉伸强度和断裂伸长率。与 PVC/DOP 薄膜相比，PVC/EC 薄膜显示出良好的热稳定性和较低的透氧率 (OTR)。在 PVC/增塑剂体系中添加石墨烯和纳米粘土表现出氧传输的增加。然而，掺入纳米填料的 PVC/EC 薄膜的氧气阻隔性能优于 PVC/DOP 薄膜。所有薄膜都显示出可忽略不计的水蒸气透过率（WVTR）。

更新日期：2021-05-10

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