LAUSR

Molybdenum disulfide (MoS 2 ) is a potential additive for rubber enhancement. However, its poor dispersion and weak interaction with matrix limit its further application. To improve the dispersion of MoS 2 in natural rubber (NR) and enhance the interaction of MoS 2 with matrix, single-layered MoS 2 nanosheets are prepared and further modified by cysteine. The modified MoS 2 nanosheets and epoxidized natural rubber (ENR) are premixed and then added into a NR/carbon black compound to obtain a NR/carbon black/ENR-modified MoS 2 nanosheets composite. The reaction between modified MoS 2 nanosheets and ENR is proved by FT-IR spectra. The modified MoS 2 nanosheets can improve the dispersion of carbon black in NR, and ENR can significantly improve the dispersion of modified MoS 2 nanosheets in the composite. The addition of ENR-modified MoS 2 nanosheets premixture can improve the abrasion resistance, increase the crosslink density and control the dynamic mechanical properties of NR. These improved properties can be attributed to the good filler dispersion and enhanced filler–matrix interaction in NR matrix.