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Item Metadata only A study of relationship between mechanical properties, oil resistance, rheological properties and phase size of rubber dispersed in NR/NBR blends(Mahidol University. Mahidol University Library and Knowledge Center, 2001) Jarunee Thunyarittikorn; Chakrit Sirisinha; Jitladda SakdapipanichItem Metadata only Reinforcement effect of multi-walled carbon nanotube with and without surface modification in nitrile rubber(Mahidol University. Mahidol University Library and Knowledge Center, 2023) Atip Boonbumrung; Chakrit Sirisinha; Pongdhorn Sae-Oui; Kalyanee Sirisinha; Toemsak Srikhirinthe degree of MWCNT dispersion and MWCNT-NBR interaction were conducted via shear field enhancement and MWCNT modification approaches. The results show that the MWCNT filled system demonstrates the greatest magnitude of reinforcement in mechanical properties... properties. Neither nip width nor milling pass number plays a strong role in MWCNT dispersion. On the contrary, the degree of MWCNT dispersion is found to increase with increased mixing time, shear field, and modification techniques. The greatest degreeItem Metadata only Reinforcement of natural rubber with silica/carbon black hybrid filler(Mahidol University. Mahidol University Library and Knowledge Center, 2005) Thanunya Saowapark; Nittaya Rattanasomof natural rubber (NR) vulcanizates. However, the optimum of silica/CB ratio giving rise to the optimum properties is needed to be clarified. It is known that silica is more difficult to disperse in NR compounds than CB. In order to enhance the dispersibility... been recently shown to improve silica dispersion and hence the properties of silica-filled NR vulcanizates. In this research, reinforcement of NR with silica/CB hybrid filler at various ratios was studied in order to determine the optimum silica/CBItem Metadata only Development of petroleum industry byproduct sulfur to be used in rubber vulcanization(Mahidol University. Mahidol University Library and Knowledge Center, 2023) Pathompong Pangamol; Chakrit Sirisinha; Pongdhorn Sae-Oui; Supa Wirasateof sulfur with TDAE oil as carrier was developed and then determined for its properties after being used in different rubber matrices. Enhancement in sulfur dispersion was focused and compared with uncoated petroleum-based sulfur. The results measured from... Plc. Co., Ltd. possessed potential utilization as the vulcanizing agent in rubber as substitution for the commercial natural-based sulfurs. Finally, the TDAE oil was used to coat the petroleum-based sulfur as dispersing agent. The ratio of sulfurItem Metadata only A study of parameters affecting properties of tire tread compounds(Mahidol University. Mahidol University Library and Knowledge Center, 2023) Puchong Thaptong; Chakrit Sirisinha; Pongdhorn Sae-Oui; Pairote JitthamIn this study, passenger car radial (PCR) tire tread compounds based on styrene butadiene rubber (SBR) were prepared. Two types of SBR, i.e., solution SBR (SSBR) and emulsion SBR (ESBR), and two types of silica, i.e., highly dispersible silica (HDSi... to the higher proportion of mono- and di-sulfidic linkages. Surprisingly, silica type played a little role in WG, FSE, and degree of filler dispersion in this study despite the fact that HDSi is claimed to offer greater dispersibility. Results suggestItem Metadata only Modification of calcium carbonate surface by polyisoprene for improved compatibility with natural rubber(Mahidol University. Mahidol University Library and Knowledge Center, 2014) Narissara Kitisreeworaphan; Supa Wirasate; Krisda SuchivaCalcium carbonate (CaCO3) is a low-cost inorganic filler commonly used in manufacturing of natural rubber latex products. However, the main problem of CaCO3 is the incompatibility with and low dispersibility in hydrophobic natural rubber, resultingItem Metadata only Influence of aromatic content in rubber processing oils on viscoelastic behaviour and mechanical properties of rubber for tyre tread application(Mahidol University. Mahidol University Library and Knowledge Center, 2023) Yotwadee Chokanandsombat; Chakrit Sirisinha; North, Alastair M.; Pongdhorn Sae-Ouiwith increased aromatic compounds and PCA contents in the RPOs. This implies that there is an enhancement in the degree of filler dispersion in the rubber compounds, which is due to the increasing compatibility between the RPO and the rubber matrix. In contrastItem Metadata only Tack reduction by surfactants and development of acrylate polymer films for pharmaceutical coatings(Mahidol University. Mahidol University Library and Knowledge Center, 2023) Sathaporn Nimkulrat; Krisda Suchiva; Pranee Phinyocheepdispersions (Eudragit®). The results from the peel tests demonstrated that glyceryl monostearate (GMS), Span 60 and Span 40 could reduce the tackiness of both Eudragit NE30D and Eudragit RS30D films. The components and mechanical properties of the films wereItem Metadata only Mechanical properties, electrical and thermal conductivities of multi-wall carbon nanotube-reinforced natural rubber and nitrile rubber blends(Mahidol University. Mahidol University Library and Knowledge Center, 2023) Pattana Kueseng; Chakrit Sirisinha; Nittaya Rattanasom; Pongdhorn Sae-Ouiof the C blends. This is simply due to the better MWCNT dispersion in the P blends. At 4 phr MWCNT, modulus, tensile strength, tear strength, and electrical conductivity of the P blend in the milling direction (MD) are higher than those of the corresponding