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Aramid fiber reinforced EPDM microcellular foams: Influence of the aramid fiber content on rheological behavior, mechanical properties, thermal properties, and cellular structure
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2021-02-15 , DOI: 10.1002/app.50531
Huayin Wen 1, 2 , Min Wang 1, 2 , Shikai Luo 1, 2 , Yuanlin Zhou 2 , Tao Liu 1
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2021-02-15 , DOI: 10.1002/app.50531
Huayin Wen 1, 2 , Min Wang 1, 2 , Shikai Luo 1, 2 , Yuanlin Zhou 2 , Tao Liu 1
Affiliation
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In this paper, aramid fiber (AF)/ethylene‐propylene‐diene monomer (EPDM) microcellular foams added with different content of AF are prepared by the supercritical foaming method. The effect of the AF content on the rheological behavior, mechanical properties, thermal properties and cellular structure of the AF/EPDM microcellular foams has been systematically studied. The research illustrates that compared with pure EPDM, the AF/EPDM matrix has greater viscosity and modulus, which is conducive to reduce the cell size and increase its density. And the thermal stability of EPDM foams is improved with the addition of aramid fiber. Meanwhile, when the content of AF is added to 1 wt%, the AF/EPDM microcellular foam exhibits a relatively low thermal diffusion coefficient and apparent density with the thermal conductivity to 0.06 W/mK. When the AF is added to 5 wt%, the tensile strength of the AF/EPDM microcellular foam increases to 1.95 MPa, which is improved by 47% compared with that of the pure EPDM foam. Furthermore, when the compressive strain reaches to 50%, the compressive strength of the AF/EPDM microcellular foam is 0.48 MPa, improved by 296% compared with that of the pure EPDM foam.
中文翻译:
芳纶纤维增强的EPDM微孔泡沫:芳纶纤维含量对流变行为,机械性能,热性能和孔结构的影响
本文采用超临界发泡法制备了添加了不同AF含量的芳纶纤维(AF)/乙烯-丙烯-二烯单体(EPDM)微孔泡沫。已经系统地研究了AF含量对AF / EPDM微孔泡沫的流变行为,机械性能,热性能和孔结构的影响。研究表明,与纯EPDM相比,AF / EPDM基质具有更大的粘度和模量,有利于减小泡孔尺寸并增加其密度。通过添加芳族聚酰胺纤维,可以提高EPDM泡沫的热稳定性。同时,当AF的含量被添加到1wt%时,AF / EPDM微孔泡沫表现出相对低的热扩散系数和表观密度,而热导率为0.06W / mK。当AF添加到5wt%时,AF / EPDM微孔泡沫的抗张强度增加到1.95MPa,与纯EPDM泡沫的抗张强度相比提高了47%。此外,当压缩应变达到50%时,AF / EPDM微孔泡沫的压缩强度为0.48 MPa,比纯EPDM泡沫的压缩强度提高了296%。
更新日期:2021-03-02
中文翻译:
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芳纶纤维增强的EPDM微孔泡沫:芳纶纤维含量对流变行为,机械性能,热性能和孔结构的影响
本文采用超临界发泡法制备了添加了不同AF含量的芳纶纤维(AF)/乙烯-丙烯-二烯单体(EPDM)微孔泡沫。已经系统地研究了AF含量对AF / EPDM微孔泡沫的流变行为,机械性能,热性能和孔结构的影响。研究表明,与纯EPDM相比,AF / EPDM基质具有更大的粘度和模量,有利于减小泡孔尺寸并增加其密度。通过添加芳族聚酰胺纤维,可以提高EPDM泡沫的热稳定性。同时,当AF的含量被添加到1wt%时,AF / EPDM微孔泡沫表现出相对低的热扩散系数和表观密度,而热导率为0.06W / mK。当AF添加到5wt%时,AF / EPDM微孔泡沫的抗张强度增加到1.95MPa,与纯EPDM泡沫的抗张强度相比提高了47%。此外,当压缩应变达到50%时,AF / EPDM微孔泡沫的压缩强度为0.48 MPa,比纯EPDM泡沫的压缩强度提高了296%。