Improved Self-Supporting and Ceramifiable Properties of Ceramifiable EPDM Composites by Adding Aramid Fiber

Abstract

<jats:p>Ceramifiable ethylene propylene diene monomer (EPDM) composites with fiber network structures were prepared by using aramid fiber (AF), ammonium polyphosphate (APP), and silicate glass frits (SGF). The effect of AF on the curing characteristic of the ceramifiable EPDM composites was studied. The morphology of AF in the composites system was observed by optical microscopy (OM) and scanning electron microscope (SEM). The effects of the observed AF network structures on the solvent resistance, mechanical properties, ablative resistance, self-supporting property, and ceramifiable properties of the composites were investigated. Results suggested that the existence of the AF network structure improved the vulcanization properties, solvent resistance, thermal stability, and ablative resistance of the EPDM composites. An excellent self-supporting property of the EPDM composites was obtained by combining the formation of the AF network and the formation of crystalline phases at higher temperature (above 600 °C). The thermal shrinkage performance of AF and the increased thermal stability of the EPDM composites improved the ceramifiable properties of the EPDM composites.</jats:p>

Fatigue failure behavior of aramid fiber reinforced styrene butadiene rubber composite with different fiber coatings

“…As it is composed of finely crystalline regular rigid straight chains, it possesses excellent properties such as high modulus, high strength and fatigue resistance. [20][21][22] A small amount of AF has been used to reinforce SBR material, resulting in significantly improving the strength and fatigue performance. [23][24][25] Yin et al 26 proposed that AF with a well-bonded flexible interface layer has an obvious attraction to fatigue cracks and can effectively slow down their growth.…”

“…Aramid fiber (AF) is a type of high‐tech synthetic fiber. As it is composed of finely crystalline regular rigid straight chains, it possesses excellent properties such as high modulus, high strength and fatigue resistance 20–22 . A small amount of AF has been used to reinforce SBR material, resulting in significantly improving the strength and fatigue performance 23–25 .…”

Research on stick–slip behavior and tribological properties of ethylene–propylene diene monomer under various wear velocity conditions

“…[1][2][3] This rubber has been widely used in mechanical sealing systems, aerospace applications, automotive tires and insulation systems. 4,5 As the application of EPDM becomes more widespread, attempts have been made to apply it in harsher working environments. However, as the working environment becomes tougher, it makes the performance requirements of EPDM more demanding.…”

“…Ethylene–propylene diene monomer (EPDM) is a rubber with excellent heat resistance, ozone resistance and aging resistance 1–3 . This rubber has been widely used in mechanical sealing systems, aerospace applications, automotive tires and insulation systems 4,5 . As the application of EPDM becomes more widespread, attempts have been made to apply it in harsher working environments.…”

Ceramifiable Silicone Rubber Composites with Enhanced Self-Supporting and Ceramifiable Properties

“…In the past few years, in order to improve the ceramifiable properties of the ceramifiable polymer composites, various kinds of mineral fillers have been researched [ 6 , 7 , 8 , 9 , 10 ]. As an example, Shi et al [ 11 ] incorporated MgO-Al 2 O 3 -SiO 2 into boron phenolic resin, hence obtaining ceramifiable phenolic resin composites.…”