针对目前纺织厂织造车间温湿度设置不合理,经停、纬停高,效率低的问题,研究了温度、相对湿度与涤/棉(65/35)浆纱力学性能的关系.通过系统测试不同温度和相对湿度下浆纱的断裂强力、耐磨性能,分析了温湿度对浆纱断裂强力、耐磨性能的影响规律,并采用相关性非参数假设检验进行了证明.结果表明:温湿度对浆纱断裂强力影响不显著、对浆纱耐磨性能有显著影响;当温度在22℃、相对湿度为78％时浆纱的断裂强力及耐磨性能最好,涤/棉浆纱在低温高湿条件下比高温高湿条件下具有更好的力学性能,浆纱在不同湿度下的应力屈服点变化和结晶度变化均不明显,表明浆纱断裂强力受湿度影响不显著的原因.%Aiming at the problems of unreasonable temperature and humidity setting in the weaving workshop of textile mills , high warp and weft stops and low weaving efficiency , the relationships between temperature /relative humidity and mechanical properties of polyester /cotton 65/35 sized yarn were studied.The breaking strength and abrasion resistance of the sized yarn were tested , and the influence law of the temperature and humidity on the breaking strength and abrasion resistance of the sized yarn were analyzed .The non parametric hypothesis test was applied to prove the experimental results .The results show that temperature and humidity have no significant influence on the breaking strength of sized yarn, and have significant influence on the wear resistance of the sized yarn .When the polyester/cotton (65/35) sized yarn under conditions of temperature of 22 ℃ and relative humidity of 78％, the sized yarn is the best in breaking strength and abrasion resistance , the sized polyester cotton yarn has better mechanical properties under the condition of low temperature and high humidity than that of high temperature and high humidity .The stress yield point change and the crystallinity degree of the polyester /cotton 65/35 sized yarn are not remarkable under different humidities , explaining the reason why the temperature and humidity have less influence on the breaking strength .
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