CAJ | 학술논문

通过单因素和正交试验探讨了甲醇用量、醚化时间、醚化温度以及醚化体系pH值对改性DMDHEU树脂性能的影响.通过测定和分析树脂的羟甲基甲醛含量、游离甲醛含量以及整理后织物的游离和水解甲醛量、折皱回复角、撕破强力等,确定了较佳的甲醇醚化工艺：甲醇用量为DMDHEU用量的36%,反应体系pH值为1.7～1.9,反应温度为50～52℃,反应时间为3.5 h,醚化后树脂的游离甲醛量低于0.3%,整理后织物上游离和水解的甲醛量为38.37 mg.kg-1,折皱回复角较原布提高了近100°,经、纬向撕破强力保留率均高于50%.
통과단인소화정교시험탐토료갑순용량、미화시간、미화온도이급미화체계pH치대개성DMDHEU수지성능적영향.통과측정화분석수지적간갑기갑철함량、유리갑철함량이급정리후직물적유리화수해갑철량、절추회복각、시파강력등,학정료교가적갑순미화공예：갑순용량위DMDHEU용량적36%,반응체계pH치위1.7～1.9,반응온도위50～52℃,반응시간위3.5 h,미화후수지적유리갑철량저우0.3%,정리후직물상유리화수해적갑철량위38.37 mg.kg-1,절추회복각교원포제고료근100°,경、위향시파강력보류솔균고우50%.
The process of etherifying DMDHEU resin with methanol is introduced.The influence of certain factors on the etherified DMDHEU resin are discussed via designing orthogonal tests and single factor experiments.Amount of methanol,reactive time,reactive temperature and pH value of the reaction system are included.Optimum etherifying process is obtained by analyzing properties of the resin（eg.methylol formaldehyde contents,free-formaldehyde contents） and the finished fabric（eg.free and hydrolysis formaldehyde,wrinkle recovery,retained strength）.The optimum condition of etherifying process is： amount of methanol is 36% to DMDHEU,pH value is 1.7～1.9,reactive temperature is 50～52 ℃,while the reactive time is 3.5 hours.The free-formaldehyde of etherified resin is lower than 0.3%.The free and hydrolysis formaldehyde of the finished fabric is reduced to 38.37 mg·kg-1,while the crease recovery angle is improved about 100° compared with original cloth and the tearing strength retention both in warp and weft is above 50%.