STUDIES ON THE HEAT RESISTANCE OF RAYON TIRE CORD:(I) SOME FACTORS AFFECTING THE HEAT RESISTANCE OF RAYON TIRE CORD
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概要
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Some factors affecting the heat resistance of high tenacity rayon tire cord have been investigated for the purpose of improving it and results as following were observed:(1) Both raw and RFL-dipped cord of high tenacity rayon suffer heat deterioration by heating in the air atmosphere, but the heat degradation of the latter is more sever than in the former.(2) The higher the copper number of pulp is, the lower is the heat resistance of raw and dipped cord which are made using them as raw materials.(3) By the treatment with the finishing agent containing amines, the heat resistance of the raw cord is improved, but the heat resistance of the dipped cord is not.(4) The remarkable heat degradation of RFL-dipped cord is attributable to the low heat resistance of natural rubbre latex. The heat resistance of the cord is lowered by the adhesion of the unsaturated oil.The heat resistance of the dipped cord is however improved by being dipped in the higher heat resistant synthetic rubber latex, such as Gentac.From these results, it may be considered that the heat degradation of rayon cord is induced by the free radical mechanism.
- 社団法人 繊維学会の論文
社団法人 繊維学会 | 論文
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