| 热塑性聚氨酯弹性体/聚乳酸复合材料的配方与性能研究 |
| Study on Formulas and Properties of TPU/PLA Composites |
| 投稿时间：2020-11-04 修订日期：2020-11-04 |
| DOI：10.12136/j.issn.1000-890X.2022.06.0439 |
| 中文关键词: 热塑性聚氨酯弹性体 聚乳酸 复合材料 邻苯二甲酸二丁酯 环烷油 增塑剂 钛酸酯偶联剂 |
| 英文关键词: TPU PLA composite DBP naphthenic oil plasticizer titanate coupling agent |
| 基金项目:江苏省住房和城乡建设厅科技项目（2017ZD238）；苏州市重点产业技术创新项目（SYG201744） |
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| 中文摘要: |
| 通过挤出成型制备热塑性聚氨酯弹性体（TPU）/聚乳酸（PLA）复合材料，研究增塑剂邻苯二甲酸二丁酯（DBP）和环烷油及钛酸酯偶联剂TCA-101对复合材料力学性能和热性能的影响。结果表明：DBP和环烷油对TPU/PLA复合材料具有良好的增塑效果，其加入有利于复合材料的挤出加工，但DBP会使复合材料的力学性能降低；钛酸酯偶联剂TCA-101对复合材料具有良好的补强作用；当TPU、PLA、环烷油用量分别为178，20和2 g时，复合材料的拉伸强度达100. 54 MPa，拉断伸长率达429%。 |
| 英文摘要: |
| Thermoplastic polyurethane elastomer（TPU）/polylactic acid（PLA） composites were prepared by extrusion molding，and the effect of plasticizer dibutyl phthalate（DBP），naphthenic oil and titanate coupling agent TCA-101 on the mechanical properties and thermal properties of the composites were investigated.The results showed that，DBP and naphthenic oil had good plasticizing effect on the TPU/PLA composites，and their addition was beneficial to the extrusion processing of the composites，but DBP would reduce the mechanical properties of the composites.Titanate coupling agent TCA-101 had good reinforcing effect on the composites. When the dosages of TPU，PLA and naphthenic oil were 178，20 and 2 g，respectively，the tensile strength of the composites reached 100. 54 MPa，and the elongation at break reached 429%. |
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