首页> 外文期刊>Journal of Applied Polymer Science >Physical Properties of Cotton Fabrics and Free CH_2O Content in Crease-Resistant Finish with DMEU/MMEU Prepolymer Mixture
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Physical Properties of Cotton Fabrics and Free CH_2O Content in Crease-Resistant Finish with DMEU/MMEU Prepolymer Mixture

机译:DMEU / MMEU预聚物混合物的棉织物的物理性能和抗皱整理中的游离CH_2O含量

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摘要

Combinations of ethylene urea and paraformaldehyde with different mol ratios are used as source materials to synthesize a DMEU/MMEU resin prepolymer in various mixing ratios.The DMEU/MMEU resin prepolymer is then applied to the crease-resistant finish of cotton fabrics.The results show that the dry and wet creaserecovery angles and nitrogen and free formaldehyde contents increase with increasing curing time,curing temperature, and mol ratio of paraformaldehyde, while the tensile strength retention decreases. Optimized relations between both physical and cnemical properties can be obtained by mixing the source materials in a 1:1.5-1:1.7 ratio,drying at 80deg C for 5 min,and curing at 150deg C for 3 min.
机译:以摩尔比不同的乙烯脲和多聚甲醛为原料,以不同的混合比合成DMEU / MMEU树脂预聚物,然后将DMEU / MMEU树脂预聚物用于棉织物的抗皱整理。随着固化时间,固化温度和多聚甲醛摩尔比的增加,干,湿折痕的恢复角,氮和游离甲醛的含量增加,而拉伸强度保持率降低。通过以1:1.5-1:1.7的比例混合原料,在80°C下干燥5分钟并在150°C下固化3分钟,可以获得物理和化学性质之间的最佳关系。

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