聚氨酯化丙烯酰胺改性醛酮树脂的制备及性能研究  

Study on Preparation and Properties of Polyurethaned Acrylamide Modified Aldehyde-Ketone Resins

作　　者：谢高艺 文耀锋 马春平 欧德培 李杨[5] XIE Gao-yi;WEN Yao-feng;MA Chun-ping;OU De-pei;LI Yang(School of Environmental and Chemical Engineering,Wuyi University,Jiangmen 529020,China;School of Chemical Engineering,Guizhou Institute of Technology,Guiyang 550003,China;College of Textile Science and Engineering,Wuyi University,Jiangmen 529020,China;Fenteng Precision Technology(Foshan)Co.,Ltd.,Foshan 528100,China;School of Materials and Energy Engineering,Guizhou Institute of Technology,Guiyang 550003,China)

机构地区：[1]五邑大学环境与化学工程学院,广东江门529020 [2]贵州理工学院化学工程学院,贵州贵阳550003 [3]五邑大学纺织科学与工程学院,广东江门529020 [4]奋腾精化科技(佛山)有限公司,广东佛山528100 [5]贵州理工学院材料与能源工程学院,贵州贵阳550003

出　　处：《塑料科技》2024年第9期139-143,共5页Plastics Science and Technology

基　　金：贵州省科技计划项目(黔科合支撑[2019]2845号)。

摘　　要：文章通过将丙烯酰胺与环己酮、甲醛共同反应制备高羟值的醛酮树脂,研究了醛酮配比、丙烯酰胺用量对所制备醛酮树脂羟值和黏度的影响,再利用异佛尔酮二异氰酸酯对所合成的丙烯酰胺改性醛酮树脂进行进一步改性,并分散于水中制得聚氨酯乳液,利用所制得的乳液调配色浆并印染在棉织物上,研究不同色浆的印染织物着色、耐摩擦和耐皂洗等性能。结果表明:添加丙烯酰胺进行反应可以有效提高醛酮树脂的羟值,适当增加甲醛含量有利于增加丙烯酰胺改性醛酮树脂的羟基含量,其中,反应物比例为n(丙烯酰胺)∶n(甲醛)∶n(环己酮)=0.05∶1.6∶1制备得到chF-AM-resin-6醛酮树脂的羟值达到最大值(375 mg KOH/g),比未添加丙烯酰胺的醛酮树脂提高244%。此外,添加15%聚氨酯化后的chF-AM-resin-6-PU乳液的色浆染色的样品获得了最佳的染色效果(与空白对照组相比K/S值提升42.7%)以及耐皂洗性能(与空白对照组相比,由3提升至4)。In this paper,acrylamide was co-reacted with cyclohexanone and formaldehyde to prepare aldehyde-ketone resins with high hydroxyl value.The effects of aldehyde-ketone ratio and acrylamide amount on the hydroxyl value and viscosity of the prepared aldehyde-ketone resins were studied.The acrylamide-modified aldehyde-ketone resin was further reacted with isophorone diisocyanate,and then dispersed in water to prepare polyurethane emulsion.After being stained by the prepared emulsion,the dyeing effect,friction resistance and soap-washing resistance of the cotton fabrics were investigated.The results show that the hydroxyl value of the acrylamide modified aldehyde-ketone resins was enhanced effectively,compared to that of the aldehyde-ketone resin without acrylamide.Besides,the hydroxyl content of acrylamide-modified aldehyde-ketone resin could be increased by increasing the formaldehyde content properly.The chF-AM-resin-6 aldehyde-ketone resin,whose reactant molar ratio is n(acrylamide)∶n(formaldehyde)∶n(cyclohexanone)=0.05∶1.60∶1,showed a maximum hydroxyl value(up to 375 mg KOH/g),244%higher than that of the aldehyde-ketone resin without acrylamide.In addition,the samples dyed with 15%chF-AM-resin-6-PU emulsion exhibited the best dyeing effect(42.7%increase of K/S value)and soap-washing resistance(increased from 3 to 4),compared with the control sample.

关 键 词：醛酮树脂 水性油墨 聚氨酯化 高羟值 

分 类 号：TQ323.1[化学工程—合成树脂塑料工业]