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Lightweight Antistatic Thermoplastic Elastomer Blend Foam: The Foaming Behavior and Mechanical Properties
ACS Applied Polymer Materials ( IF 4.4 ) Pub Date : 2023-05-15 , DOI: 10.1021/acsapm.3c00443 Wenzhang Huang 1 , Leilei Yu 1 , Zhen Yu 1 , Lijuan Yang 1 , Shibao Wen 1 , Zhen Xiu Zhang 1
ACS Applied Polymer Materials ( IF 4.4 ) Pub Date : 2023-05-15 , DOI: 10.1021/acsapm.3c00443 Wenzhang Huang 1 , Leilei Yu 1 , Zhen Yu 1 , Lijuan Yang 1 , Shibao Wen 1 , Zhen Xiu Zhang 1
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A thermoplastic polyester elastomer (TPEE) has been widely used because of its excellent impact resistance and resilience, but its melt viscosity is too low to be used in the supercritical foaming. In addition, TPEE easily generates static electricity accumulation during processing, which has a risk of fire. Herein, a thermoplastic polyamide elastomer (PEBAX) with permanent antistatic properties was blended with TPEE, and triglycidyl isocyanurate (TGIC) was used as a chain extender to improve the compatibility and melt strength of the blends. Then, the TPEE/PEBAX blends were foamed by supercritical N2, and the cell structure and mechanical and antistatic properties of the blend foam were analyzed at a density of 0.1 ± 0.001 g/cm3. The results showed that when the blending ratio of TPEE/PEBAX was 70/30, the blend foam with a uniform cell structure had the most excellent mechanical properties. The resilience and elongation at break reached 83 and 850.3%, respectively. In addition, the surface resistivity and volume resistivity were 3.21 × 109 Ω and 7.35 × 109 Ω·cm, respectively, which were significantly lower than those of the IEC 61340 standard.
中文翻译：
轻质抗静电热塑性弹性体共混泡沫：发泡行为和机械性能
热塑性聚酯弹性体（TPEE）因其优异的抗冲击性和回弹性而得到广泛应用，但其熔体粘度太低，无法用于超临界发泡。另外，TPEE在加工过程中容易产生静电积聚，有发生火灾的危险。在此，将具有永久抗静电性能的热塑性聚酰胺弹性体 (PEBAX) 与 TPEE 共混，并使用异氰脲酸三缩水甘油酯 (TGIC) 作为扩链剂，以提高共混物的相容性和熔体强度。然后，将TPEE/PEBAX共混物通过超临界N 2发泡，并在密度为0.1 ± 0.001 g/cm 3时分析共混泡沫的泡孔结构、力学性能和抗静电性能。. 结果表明，当TPEE/PEBAX的共混比为70/30时，泡孔结构均匀的共混泡沫具有最优异的力学性能。回弹性和断裂伸长率分别达到83和850.3%。此外，表面电阻率和体积电阻率分别为3.21×10 9 Ω和7.35×10 9 Ω·cm，显着低于IEC 61340标准。
更新日期：2023-05-15
中文翻译：
轻质抗静电热塑性弹性体共混泡沫：发泡行为和机械性能
热塑性聚酯弹性体（TPEE）因其优异的抗冲击性和回弹性而得到广泛应用，但其熔体粘度太低，无法用于超临界发泡。另外，TPEE在加工过程中容易产生静电积聚，有发生火灾的危险。在此，将具有永久抗静电性能的热塑性聚酰胺弹性体 (PEBAX) 与 TPEE 共混，并使用异氰脲酸三缩水甘油酯 (TGIC) 作为扩链剂，以提高共混物的相容性和熔体强度。然后，将TPEE/PEBAX共混物通过超临界N 2发泡，并在密度为0.1 ± 0.001 g/cm 3时分析共混泡沫的泡孔结构、力学性能和抗静电性能。. 结果表明，当TPEE/PEBAX的共混比为70/30时，泡孔结构均匀的共混泡沫具有最优异的力学性能。回弹性和断裂伸长率分别达到83和850.3%。此外，表面电阻率和体积电阻率分别为3.21×10 9 Ω和7.35×10 9 Ω·cm，显着低于IEC 61340标准。
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