Reference

Tear and tensile properties of short silk fiber reinforced styrene-butadiene rubber composites

Tear and tensile properties of short silk fiber reinforced styrene-butadiene rubber composites. Setua, D. K. (Rubber Technol. Cent., Indian Inst. Technol., Kharagpur 721 302, India). Kautsch. Gummi, Kunstst., 37(11), 962-5 (English) 1984. CODEN: KGUKAC. ISSN: 0022-9520. DOCUMENT TYPE: Journal CA Section: 39 (Synthetic Elastomers and Natural Rubber) The effects of the type of crosslinking, addn. of reinforcing carbon black, crosslink d., and the role of bonding agents in adhesion between the fiber and the rubber on the tear and tensile strength of SBR composites were discussed. The tear and tensile strength of unfilled and carbon black-filled SBR vulcanizates depended on the type and degree of crosslinking. However, addn. of silk fibers overshadowed the effect of crosslinking and the composite properties depended primarily on the extent of fiber-rubber adhesion. The increase in tensile strength and the anisotropy in tensile strength in different directions of fiber orientation was max. for optimum vulcanized S-cured systems and min. for dicumyl peroxide [80-43-3]-cured system. The presence of bonding agents increased the degree of fiber-rubber adhesion, thereby causing further improvement in tensile properties.

Studies on polyfunctional additives (VI)

Studies on polyfunctional additives (VI). Novel antioxidant selected for peroxide crosslinking system of rubbers - 2,4,6-tri(antioxidant group)-1,3,5-triazine. Nakamura, Yoshiro; Mori, Kunio; Tamura, Kosaku; Saitoh, Yoshiko (Dep. Appl. Chem., Iwate Univ., Ueda 020, Japan). Nippon Gomu Kyokaishi, 57(10), 610-15 (Japanese) 1984. CODEN: NGOKAF. ISSN: 0029-022X. DOCUMENT TYPE: Journal CA Section: 39 (Synthetic Elastomers and Natural Rubber) I (R = p-PhNHC6H4NH) [13437-24-6] and I (R = p-PhNHC6H4O) [94106-08-8] are effectiveantioxidants with no adverse effects on the crosslinking activity of peroxides such as dicumyl peroxide [80-43-3], 1,1-bis(tert-butylperoxy)-3,3,5-trimethylcyclohexane [6731-36-8], and 2,5-bis(tert-butylperoxy)-2,5-dimethyl-3-hexyne [1068-27-5] in ethylene-propene rubber, nitrile rubber, isoprene rubber, and EPDM rubber. The I have low volatility and show sustained effects at high temps.