Preparation of high elastic bimodal cells biodegradable foam

IF 4.1 2区化学 Q2 POLYMER SCIENCE

Polymer Pub Date : 2025-01-22 DOI:10.1016/j.polymer.2024.127987

Hanlin Tian , Zepeng Wang , Jinshuo Yu , Yan Zhao , Hongwei Pan , Junjia Bian , Huili Yang , Zhibing Wang , Huiliang Zhang

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引用次数: 0

Abstract

Poly(butylene adipate-co-terephthalate) (PBAT) and polybutylene succinate (PBS) are advanced biodegradable thermoplastic elastomer with excellent application prospects. There is a growing interest in developing PBAT foam products as effective alternatives to traditional foams for sports, shock absorption, and safety protection. In this study, high compression strength and high elasticity PBAT/PBS foam materials was prepared by supercritical CO₂ foam, the effects of the crystallization nucleation agent TMC and the chain extender ADR on crystallization and melt strength of blends was investigated by varying temperature-pressure modes (VT-PM). The rheological results showed that with the increase of ADR, the storage modulus and viscosity of PBAT/PBS blends increased significantly, transitioning from a viscous liquid-like to an elastic state. TMC could promote polymer crystallization, crystal size reduced, and small size cell was obtained during the foaming. Finally, a high elastic foam T/S-0.2-1.5 with 12 times and the compressive strength about 0.59 MPa and energy loss of 14.3 % can be prepared due to synergistic effect of ADR and TMC. This provides a promising application prospect for biodegradable foams.

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高弹性双峰细胞可生物降解泡沫的制备

聚己二酸丁二酸酯（PBAT）和聚丁二酸丁二酸酯（PBS）是一种先进的可生物降解热塑性弹性体，具有良好的应用前景。人们对开发PBAT泡沫产品越来越感兴趣，它可以作为传统泡沫的有效替代品，用于运动、减震和安全保护。采用超临界CO2泡沫法制备了高抗压强度、高弹性的PBAT/PBS泡沫材料，通过变温-变压模式（VT-PM）研究了结晶成核剂TMC和扩链剂ADR对共混物结晶和熔融强度的影响。流变学结果表明，随着ADR的增加，PBAT/PBS共混物的存储模量和粘度显著增加，由粘性类液体状态过渡到弹性状态。TMC能促进聚合物的结晶，使聚合物的结晶尺寸减小，发泡时得到小尺寸的晶胞。最后，由于ADR和TMC的协同作用，可制得高弹性泡沫T/S-0.2-1.5，其抗压强度为TMC的12倍，抗压强度约为0.59 MPa，能量损失为14.3%。这为生物降解泡沫材料提供了广阔的应用前景。

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来源期刊

Polymer 化学-高分子科学

CiteScore

7.90

自引率

8.70%

发文量

959

审稿时长

32 days

期刊介绍： Polymer is an interdisciplinary journal dedicated to publishing innovative and significant advances in Polymer Physics, Chemistry and Technology. We welcome submissions on polymer hybrids, nanocomposites, characterisation and self-assembly. Polymer also publishes work on the technological application of polymers in energy and optoelectronics. The main scope is covered but not limited to the following core areas: Polymer Materials Nanocomposites and hybrid nanomaterials Polymer blends, films, fibres, networks and porous materials Physical Characterization Characterisation, modelling and simulation* of molecular and materials properties in bulk, solution, and thin films Polymer Engineering Advanced multiscale processing methods Polymer Synthesis, Modification and Self-assembly Including designer polymer architectures, mechanisms and kinetics, and supramolecular polymerization Technological Applications Polymers for energy generation and storage Polymer membranes for separation technology Polymers for opto- and microelectronics.