Effects of coupling agents on the properties of an NR/SBR matrix and its adhesion to continuous basalt fiber cords

Abstract

The effects of various coupling agents on the characteristics and properties of a natural rubber (NR)/styrene–butadiene rubber (SBR) matrix and its adhesion to continuous basalt fiber (CBF) cords were studied. Four types of silane‐based and two types of titanate‐based coupling agents were added separately to the rubber matrix during the mixing process. The processability of the rubber compounds and the mechanical and tension fatigue properties of the vulcanizates were evaluated. The static and dynamic adhesion between the CBF cord/rubber matrices were investigated using the H pull‐out test and an elastomer testing system, respectively. The results showed that the effects of the coupling agent were controlled by its chemical structure, and it was found that the addition of (3‐aminopropyl)triethoxysilane was the most effective for enhancing the interfacial fatigue properties, due to the combined improvements of the initial adhesion, interfacial stress states, and the fatigue property of the rubber matrix. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47098.

Preparation and properties of high‐strength‐high‐modulus polyimide cords/natural rubber composites

“…The cords adhesion to NR was measured by the H pull‐out test (ASTM D4776‐1998) and the single end strip adhesion test (SESA) 22 …”

“…The cords adhesion to NR was measured by the H pullout test (ASTM D4776-1998) and the single end strip adhesion test (SESA). 22 The fabrication process of the H pull-out sample is as follows: the rubber sheets are placed into the channels of the die, the tested cords are placed on the rubber sheet, and then another set of rubber sheets are used to putted to cover the top. Each cord is stretched by a 50 g weight.…”

Surface Modification of Staple Carbon Fiber by Dopamine to Reinforce Natural Latex Composite

“…The hardness of the rubber vulcanizate was evaluated using Shore Hardmeter (LX-A, Shanghai Liuling Instrument Factory, Shanghai, China) according to ISO 7619-2: 2004, three points were measured for each sample and the final result produced the median [6]. The tensile and tear properties of the vulcanized rubber were tested using a universal testing machine (TS 2005 b, GOTECH TESTING MACHINES CO., Ltd., Taichung, Taiwan) at a drawing rate of 500 mm/min according to the standards ISO 37: 2005 and ISO 34-1: 2004, respectively [20]. Five specimens were tested for each sample type and the final result produced the median.…”

Effect of Gear Pump Extrusion Processing on the Properties of Fiber Reinforced Rubber Composites

“…The hardness of the rubber vulcanizate was evaluated using Shore Hardmeter (LX-A, Shanghai Liuling Instrument Factory) according to ISO 7619-2: 2004, and three points were measured for each sample and the final result selected the median [6]. The tensile and tear properties of the vulcanized rubber were tested using a universal testing machine (TS 2005 b, GOTECH TESTING MACHINES CO., Ltd.) at a drawing rate of 500 mm/min according to the standards ISO 37: 2005 and ISO 34-1: 2004, respectively [6]. Five specimens were tested for each sample type and the final result selected the median.…”

“…Because the molecular structure, reactivity, and surface properties of the short fiber and rubber matrix are different, the adhesion between them [6][7][8] is difficult and it has been the primary factor in the preparation of short fiber reinforced rubber composite [9,10]. Many methods were found to improve the interaction between fiber and rubber for these differences.…”