Preparation and Properties of Polypropylene/Thermoplastic Polyurethane Blends with Stiffness-toughness Balance

ZHAO Lin-lin; XU Shi-liang; SUN Yu-fan; DAI Fei-yu; LIU Heng; XU Li-li; ZHANG Chun-yu; ZHANG Xue-quan

doi:10.14028/j.cnki.1003-3726.2026.26.099

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Preparation and Properties of Polypropylene/Thermoplastic Polyurethane Blends with Stiffness-toughness Balance

更新时间：2026-07-27

- Preparation and Properties of Polypropylene/Thermoplastic Polyurethane Blends with Stiffness-toughness Balance
- Polymer Bulletin Vol. 39, Issue 8, Pages: 1434-1443(2026)
- 作者机构：
  
  青岛科技大学高分子科学与工程学院橡塑材料与工程教育部重点实验室先进橡胶材料教育部重点实验室　青岛 266042
  日照市岚山区科学技术局　日照 276800
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2026.26.099
  CLC：
- Received：28 February 2026，
  
  Accepted：10 April 2026，
  
  Online First：26 June 2026，
  
  Published：20 August 2026
- 稿件说明：
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赵琳琳, 徐世亮, 孙屿璠, 代飞宇, 刘恒, 许丽丽, 张春雨, 张学全. 刚韧平衡聚丙烯/热塑性聚氨酯共混物制备及性能. 高分子通报, 2026, 39(8), 1434–1443.

Zhao, L. L.; Xu, S. L.; Sun, Y. F.; Dai, F. Y.; Liu, H.; Xu, L. L.; Zhang, C. Y.; Zhang, X. Q. Preparation and properties of polypropylene/thermoplastic polyurethane blends with stiffness-toughness balance. Polym. Bull. (in Chinese), 2026, 39(8), 1434–1443.
赵琳琳, 徐世亮, 孙屿璠, 代飞宇, 刘恒, 许丽丽, 张春雨, 张学全. 刚韧平衡聚丙烯/热塑性聚氨酯共混物制备及性能. 高分子通报, 2026, 39(8), 1434–1443. DOI： 10.14028/j.cnki.1003-3726.2026.26.099.

Zhao, L. L.; Xu, S. L.; Sun, Y. F.; Dai, F. Y.; Liu, H.; Xu, L. L.; Zhang, C. Y.; Zhang, X. Q. Preparation and properties of polypropylene/thermoplastic polyurethane blends with stiffness-toughness balance. Polym. Bull. (in Chinese), 2026, 39(8), 1434–1443. DOI： 10.14028/j.cnki.1003-3726.2026.26.099.

摘要

采用熔融共混法制备了聚丙烯(PP)/热塑性聚氨酯(TPU)共混物。通过力学性能测试、扫描电镜(SEM)观察及动态力学分析等表征手段，考察了3种不同MAH含量的PP-

-MAH作为增容剂(MAH接枝率分别为4.5 wt% (C1)、10.5 wt% (C2)与1.2 wt% (C3)商品化PP-

-MAH)对PP/TPU共混物力学性能的影响。结果表明，PP/TPU质量比为88/12时综合性能最佳，添加2 wt%的高接枝率PP-

-MAH(C2)增容效果最优，可使共混物冲击强度较纯PP提升51.5%，同时弯曲模量提高5.3%，实现了刚韧协同增强。

Abstract

A series of polypropylene (PP)/thermoplastic polyurethane (TPU) blends were prepared by melt blending. The eff

ects of three PP-

-MAH compatibilizers with different MAH grafting ratios (4.5 wt% for C1

10.5 wt% for C2

and 1.2 wt% for commercial PP-

-MAH for C3) on the mechanical properties of the PP/TPU blends were systematically investigated using mechanical property tests

scanning electron microscopy (SEM)

and dynamic mechanical analysis (DMA). The results showed that the PP/TPU blend with a mass ratio of 88/12 exhibited optimal comprehensive performance. Among the samples

the addition of 2 wt% of the high-grafting-rate PP-

-MAH (C2) yielded the most significant compatibilization effect

which increased the impact strength of the blend by 51.5% compared to that of pure PP

whereas the flexural modulus was enhanced by 5.3%. This achievement resulted in a synergistic enhancement of the stiffness and toughness.

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Related Author

ZHAO Lin-lin

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Related Institution

Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber and Plastics, Key Laboratory of Advanced Rubber Material, Ministry of Education School of Polymer Science and Engineering, Qingdao University of Science and Technology

College of Polymer Science and Engineering, Qingdao University of Science and Technology

College of Materials Science and Engineering, Donghua University

College of Materials Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences)

Shandong Provincial Key Laboratory of Olefin Catalysis and Polymerization, Key Laboratory of Rubber-Plastics (Ministry of Education), School of Polymer Science and Engineering, Qingdao University of Science and Technology

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