现代纺织技术2025，Vol.33Issue(6)：51-61,11.DOI:10.19398/j.att.202410003
纺织品用自着色氟硅改性聚丙烯酸酯杂化乳胶的合成与性能
Synthesis and properties of self-coloring fluorosilicone-modified polyacrylate hybrid latex for textiles
摘要
Abstract
In the textile printing and dyeing process,dyeing typically involves the use of a substantial amount of auxiliaries and necessitates procedures such as dyeing with a large liquor ratio,repeated washing and drying,and color fixing.These steps have often been criticized for resulting in the"three high"issues(high water consumption,high energy consumption,and high pollution),thereby impacting the green,low-carbon,and high-quality development of the textile industry chain.To solve this problem,many scholars have proposed to polymerize low molecular weight dyes,using the adhesive properties of polymers to directly attach them to the surface of fabrics without the need for additional dyes and film-forming agents.This method simplifies the process and meets the market demand for safety and environmental protection. Introducing dye matrices into the main chain or side groups of polymers through copolymerization is an effective way to polymerize low molecular weight dyes.The self-coloring hybrid latex prepared by this method simultaneously possesses the strong light absorption of dyes and the migration resistance and processability of polymers.Fluorinated polysiloxane introduces fluorine groups into the organosilicon side groups,which not only endows the material with excellent properties of organosilicon polymers,such as flexibility,high temperature resistance,hydrophobicity,and low surface tension,but also enhances its heat resistance and chemical resistance.However,the behavior and mechanism of film formation and diffusion of rubber particles during the baking process of self-coloring fluorosilicone-modified polyacrylate hybrid latex for textiles are still unclear and therefore require further research. To investigate the properties of self-coloring fluorosilicone-modified waterborne polymeric latex for textiles,polymerizable dye R60 was synthesized using C.I.Disperse Red 60 as the raw material.This dye was copolymerized with monomers such as methyl methacrylate(MMA),butyl acrylate(BA),octamethylcyclotetrasiloxane(D4),and trifluoropropylmethylcyclotrisiloxane(D3F)through a one-pot miniemulsion polymerization method to synthesize a self-coloring fluorosilicone-modified polyacrylate hybrid latex.This latex was then applied to cotton fabrics for foam dyeing and polyester fabrics for screen printing.The structures of R60 and self-coloring latex were characterized by 1H NMR and FTIR.The effects of different fluorosilicone monomer ratios and R60 addition amounts on the color characteristics,dry/wet crockfastness,and washing fastness of the colored fabrics were investigated.The film-forming and color-fixing mechanisms of the fluorosilicone-modified hybrid self-coloring latex were analyzed.The results showed that the self-coloring fluorosilicone-modified latex particles exhibited an ellipsoidal structure with good centrifugal and freeze-thaw stability.When the amount of R60 added was 3％of the total monomer mass and the mass ratio of D4 to D3F was 4/1,the hybrid film exhibited a glass transition temperature(Tg)of 2.7℃ and a water contact angle of 93.9°.Compared to fabrics treated with pure acrylate self-coloring latex,the color fastness,hand feel,and air permeability of fabrics treated with the fluorosilicone-modified self-coloring latex were improved.The K/S values of foam-dyed cotton fabrics and polyester fabrics reached 2.02 and 7.39,respectively,with dry/wet crockfastness and washing fastness ratings being above grade 4.The air permeability increased by 23.7％and 33.2％,respectively,while the stiffness decreased by 28.55％and 49.7％.Leveraging the surface migration characteristics of the fluorosilicone segments during film formation,the latex particles could better diffuse into the fabric pores,inhibiting the continuous formation of a film on the fabric surface and imparting excellent coloring performance to the colored fabrics.关键词
自着色乳胶/氟硅改性聚丙烯酸酯/涂料印花/泡沫染色/摩擦牢度Key words
self-coloring latex/fluorosilicone-modified polyacrylate/pigment printing/foam dyeing/crockfastness分类
轻工业引用本文复制引用
郭丁滔,李家炜,何贵平,吴亮,郭杰,戚栋明..纺织品用自着色氟硅改性聚丙烯酸酯杂化乳胶的合成与性能[J].现代纺织技术,2025,33(6):51-61,11.基金项目
浙江省"领雁"研发攻关计划项目(2024C01199) （2024C01199）
中国纺织工业联合会应用基础研究项目(J202207) （J202207）
绍兴市产业关键技术攻关专项项目(2024B11007) （2024B11007）
