Study on the cations-exchanged zeolite and its influence on mechanical, thermal, and morphological properties of rubber composites

Abstract

Enhancement of the physicomechanical properties of rubber can be achieved by the incorporation of reinforcing fillers, such as clay. Cation-exchanged zeolites (CEZes) were prepared by exchanging the native Na+ ions with single inorganic cations (magnesium (Mg), zinc (Zn), or strontium) and/or double cations (Zn-Mg), then they were processed as reinforcing fillers in the two type of synthetic rubber, acrylonitrile-butadiene rubber (NBR) and styrene-butadiene rubber (SBR). Characterization of modified zeolite (Ze) was implemented using infrared spectroscopy, X-ray diffraction, and scanning electron microscopy. The aim of this article is to study the influence of Ze and CEZe loadings on the rheometrical and physicomechanical properties of both NBR and SBR composites, also the thermogravimetric analysis was examined and the results were discussed. The results showed that the composites exhibited remarkable improvements in tensile strength, elongation at break, and hardness in the presence of CEZe and also an increase in thermal stability was reported.

Flame‐retardant behavior and mechanism of theSBR/MMTcomposites modified by melamine matrix modifier

“…The entanglement of polymer chains around the filler and the reinforcement of nanofillers can prevent the chains from sliding with each other, and the reinforcement effect is obvious 15,28,37 . In addition, the organic ammonium cations inside the FOSM powders can interact strongly with the sulfur‐based cross‐linking system, thus increasing the stability of the cross‐linking network structure 38,39 . Accordingly, the tan δ of the samples decreased.…”

“…The fracture surface SEM images of the SBR/MMT, SBR/FOSM‐3, and SBR/FOSM‐4 samples are shown in Figure 6. Many holes were observed on the fracture surface of the SBR/MMT composite because of the uneven dispersion of the MMT powders in the SBR matrix, resulting in agglomerates 39 . The small white particles in the images are the MMT fragments 28 .…”

Derived from poplar leaves graphene-modified silicone rubber composites

“…Chemically and thermally stable silicone rubber (MVQ) 1,2 is widely used in various fields such as medical field, 3 advanced national defense technology, aerospace manufacturing, and fine chemical industry; 4 –7 because its mechanical strength is very low, it is difficult to meet the needs for industrial use. 8 Therefore, MVQ had to improve the wear resistance, fatigue resistance, strength, and other properties to meet the engineering requirements. 9,10 Graphene, with large specific surface area, tensile strength, elastic modulus, electron mobility, and excellent conductivity, 11 –14 has become one of the hot spots in the research of new materials all over the world.…”

Investigation of the structure, magnetic, rheological and mechanical properties of EPDM rubber/Cu-Al-Zn alloy composites

“…Also, the presence of coupling agent TMSPM lead to increase the thermal transition which elevated the vulcanization process and improved interactions between Cu-Al-Zn alloy and rubber matrix [19].…”