UV固化涂料的制备及性能研究

发布时间：2018-03-08 10:51

本文选题：UV固化涂料　切入点：单体　出处：《浙江理工大学》2017年硕士论文　论文类型：学位论文

【摘要】：UV涂料具有节省能源、不产生挥发性有机物、固化速度快、颜色鲜艳等优点,是环保材料领域的研究热点。与传统的纺织涂料印花工艺相比,紫外光固化技术适合于个性化纺织品的快速定制,在电子商务和个性化体验实体门店具有良好的市场前景。本文的研究目的在于制备分散稳定的纺织UV涂料,并研究涂料在纺织上的应用性能。首先研究了纺织UV涂料各组分对分散稳定性、黏度和表面张力的影响。然后重点讨论了UV涂料固化速度的影响因素。最后对纺织UV涂料的透明性、附着力、着色性能、摩擦牢度、断裂强力等性能做了细致的表征。主要研究内容和结论如下:为了提高UV固化涂料的分散稳定性,探讨7种单体和4种低聚物对UV固化涂料耐热稳定性和离心稳定性的影响。用粒径、吸光度和离心稳定性来表征实验结果。结果表明:用单体EOEOEA、NPGDA和TMPTA,6201制备的UV固化涂料热储前后粒径变化较小,热储吸光度稳定性在95%以上,离心稳定性在85%以上,可用来制备稳定性高的UV固化涂料。UV固化涂料的各组分对其粘度、表面张力、固化速度都产生了不同的影响。单体对UV固化涂料的粘度、表面张力、固化速度影响都很大,随着单体官能团的增加,UV固化涂料的粘度、表面张力变大,固化速度加快。环氧类低聚物6104-80所制备的UV固化涂料粘度最小,随着低聚物用量的增加,UV固化涂料的粘度变大。低聚物对UV固化涂料的表面张力影响较小。环氧类低聚物的固化速度比聚氨酯类低聚物的快,随着聚氨酯类低聚物官能度的增加,固化速度加快。引发剂对UV固化涂料的粘度影响很小,对固化速度起决定性作用,固化速度的快慢为:369ITXBPDETX907TPO1173184EDB。随着引发剂用量的增加,固化时间迅速减短,饱和用量为7%。研究了不同种类单体、低聚物、引发剂及低聚物用量和色浆质量分数对UV固化涂料透明性的影响。结果表明:TMTPA的透光率最低,IBOA的透光率最高。聚氨酯类低聚物比环氧类低聚物的透明性好,6201的透光率最高。9种引发剂中,ITX的透光率最低,907的透光率最高。随着低聚物和色浆用量的增加,UV固化涂料的透光性明显下降。探究了UV固化涂料组分对附着力、织物着色性能、摩擦牢度、断裂强力的影响。三官能团单体TMTPA、低聚物6201的附着力最好,随着低聚物用量的增加,附着力减弱。双官能团单体TPGDA、NPGDA、HDDA和PDDA的K/S值最大,单官能团单体EOEOEA和IBOA的K/S值次之,三官能团单体TMPTA的K/S值最小。低聚物对K/S值的影响为6201聚氨酯丙烯酸酯6104-806318,随着低聚物用量的增加,织物的K/S值先增大后变小,低聚物用量为30%时,K/S值最大。随着色浆用量的增加,K/S值增大,当色浆用量超过9%时,K/S值不再增加,反而有所下降。着色织物的湿摩擦牢度比干摩擦牢度好,随着单体官能团的增多,摩擦牢度变好。低聚物6104-80和6318的干湿摩擦牢度最好,达到5级。与原织物相比,UV固化涂料所着色的织物断裂强力基本都增加,断裂伸长均有所下降。
[Abstract]:Along with saving energy, does not produce volatile organic compounds, fast curing speed, bright color and other advantages, is a hotspot in the field of environmental protection materials. Compared with the traditional technology of textile printing, rapid customization of UV curing technology for personalized textiles, with good market prospects in e-commerce and personalized experience of physical stores. The purpose of this paper is to prepare stable dispersion of textile UV coatings, application performance and study of coating in the textile. Firstly, textile UV coating components on dispersion stability, effect of viscosity and surface tension. Then discusses the factors influencing the curing speed. Finally, transparency of textile UV coating adhesion, coloring performance. Rubbing fastness, tear strength and other properties to do a detailed characterization. The main research contents and conclusions are as follows: in order to improve the dispersion stability of UV curing coatings The qualitative effects of 7 monomers and oligomers of 4 kinds of UV curing coatings thermal stability and centrifugal stability. With the particle size, the absorbance and centrifugal stability was characterized. The results show: with the monomer EOEOEA, NPGDA and TMPTA before and after UV curing coatings prepared by thermal storage 6201 particle size change is small, heat storage stability of absorbance at 95% or more, the centrifugal stability in more than 85%, can be used to the preparation of high stability UV curing coatings of.UV curing coatings on the viscosity, surface tension, had the different influence of curing rate. The viscosity of monomer of UV curing coating surface tension, curing speed have great influence, with the increase the functional monomers, UV curing coating viscosity, surface tension becomes larger, curing speed. Epoxy oligomer 6104-80 prepared by UV curing coating viscosity minimum, with the increase of oligomer content, UV curing coating viscosity The surface tension of UV oligomers. Curing coatings have little influence. The curing rate of epoxy oligomer than polyurethane oligomer, with the increase of polyurethane oligomer functionality, curing speed. Effect of initiator agent on the viscosity of UV curing coatings is very small, the curing speed plays a decisive role, curing speed is 369ITXBPDETX907TPO1173184EDB.: with the increase of the amount of the initiator, the curing time quickly short oligomers of different saturation dosage of monomer, 7%., initiator and oligomer content and paste concentration on UV curing coating transparent effect. The results show that the transmittance of TMTPA IBOA the lowest, highest light transmittance than polyurethane oligomer. Epoxy oligomer has good transparency, light transmission rate of 6201 the highest.9 initiator in ITX, the transmittance of the lowest 907 of the highest light transmittance. With the oligomer and paste with The increase in the amount of light transmittance of UV curing coatings decreased significantly. To explore the UV curing coating composition on adhesion, fabric coloring performance, rubbing fastness, breaking strength. The influence of three functional monomer TMTPA, adhesion 6201 oligomer best, with the increase of oligomer content, adhesion decreased. Double functional monomer TPGDA. NPGDA, HDDA, PDDA and K/S value of the largest single functional monomer EOEOEA and IBOA K/S is the second, three functional monomer TMPTA. The minimum K/S oligomer effect on the K/S value of 6201 polyurethane acrylate 6104-806318, with the increase of oligomer content, the K/S value of the fabric first increased and then decreased, the amount of oligomer 30%, the maximum K/S value. With the increase of paste dosage, K/S value increases, when the amount of paste is more than 9%, K/S value is not increased, but declined. The wet rubbing fastness of dry rubbing fastness of the dyed fabrics, with the increase of functional monomers The dry and wet rubbing fastness of the oligomers 6104-80 and 6318 is the best, reaching 5 level. Compared with the original fabrics, the breaking strength of the UV curing coatings is basically increased and the elongation at break has decreased.

【学位授予单位】：浙江理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TS194.21

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