本文選題：聚氨酯丙烯酸酯　切入點：低黏度　出處：《浙江理工大學(xué)》2015年碩士論文

【摘要】：數(shù)碼噴墨印花是當(dāng)今世界最為先進(jìn)的印花技術(shù)，噴印過程中墨滴的使用是由計算機(jī)“按需分配”控制，代表了未來紡織品印花的發(fā)展趨勢。然而，在其后道固化和整理階段，仍存在工藝復(fù)雜、耗水耗能嚴(yán)重的問題。本課題應(yīng)用自制的低黏型聚氨酯丙烯酸酯作為固化連接料，通過添加光引發(fā)劑、顏料、活性稀釋單體、潤濕分散劑制備藍(lán)光固化噴墨印花墨水，直接噴印到織物表面，再用藍(lán)光引發(fā)大分子固化成膜，替代傳統(tǒng)工藝中的水洗和熱固化步驟，得到噴墨印花織物。本課題對低聚物的合成和噴墨墨水的配方進(jìn)行了優(yōu)化，測試并分析了其服用性能，結(jié)果表明優(yōu)化出的墨水具有較好的服用性能。 首先，探究了低黏型聚氨酯丙烯酸酯的合成工藝，通過二正丁胺滴定法和紅外光譜法對合成反應(yīng)進(jìn)程進(jìn)行跟蹤監(jiān)測，討論了反應(yīng)溫度、物料配比以及催化劑用量對合成過程的影響。聚氨酯丙烯酸酯低聚物的合成以異佛爾酮二異氰酸酯（IPDI）、聚丙二醇1000（PPG-1000）和丙烯酸羥乙酯（HEA）為主要原料，采用兩步法合成低聚物，最佳工藝條件為：第一步反應(yīng)溫度80℃，不加催化劑，反應(yīng)時間7h；第二步反應(yīng)溫度為50℃，催化劑用量0.05%，阻聚劑用量0.1%，反應(yīng)時間2h。采用旋轉(zhuǎn)流變儀和光量熱系統(tǒng)（Photo-DSC）對合成產(chǎn)物的流變性能和藍(lán)光聚合性能進(jìn)行評價。結(jié)果表明，在最佳的合成工藝下，制得的聚氨酯丙烯酸酯低聚物具有黏度低、藍(lán)光聚合性能優(yōu)良的特點，能夠滿足藍(lán)光固化紡織品數(shù)碼印花墨水對低聚物流變和藍(lán)光聚合性能的要求。 其次，從流變性能、分散穩(wěn)定性、聚合性能三個方面對墨水體系的性能進(jìn)行研究，探討了活性稀釋單體、顏料、潤濕分散劑對墨水體系的影響。實驗得出最佳墨水配方：聚氨酯丙烯酸酯57.6wt%（wt%為占墨水總重百分比，下同），丙烯酸異冰片酯28.8wt%，丙烯酸羥乙酯9.6wt%，顏料0.5wt%，樟腦醌1wt%，4-(二甲氨基)苯甲酸乙酯1wt%，潤濕分散劑1.5wt%。 最后，以純棉織物為例對墨水的服用性能進(jìn)行了系統(tǒng)的研究，探討了聚合體系、引發(fā)劑體系和光照條件對噴墨印花織物干、濕耐摩擦色牢度的影響，并從顏色深度和織物表觀微形貌等方面對摩擦前后進(jìn)行了觀察。研究結(jié)果表明，優(yōu)選墨水印花織物的摩擦色牢度都可達(dá)3級以上，，具有較好的耐摩擦色牢度；印花的色澤均勻，輪廓清晰。
[Abstract]:Digital ink-jet printing is one of the world's most advanced printing technology, the use of the ink jet printing process by computer control, "Dama" represents the future trend of development of textile printing. However, after curing and finishing stage, there are still complicated technology, water and energy consumption of the subject of serious problems. Application of self-made low viscosity polyurethane acrylate as curing binder, by adding photoinitiator, active diluent monomer, pigment, wetting and dispersing agent to prepare the blue light curing ink jet printing ink, directly printed onto the fabric surface, and then the blue light induced molecular film-forming, instead of washing and heat curing steps in the traditional process get the ink-jet printing fabric. The synthesis of oligomers and ink formulation was optimized, analyzed its wearability testing and the results show that the optimization of ink has better wearability Can.
First of all, to explore the synthesis of low viscosity polyurethane acrylate, the reaction process was monitored by two n-butylamine titration and infrared spectroscopy. The effects of reaction temperature, material ratio and amount of catalyst on the synthesis process. The polyurethane acrylate oligomers were synthesized with isophorone diisocyanate (IPDI), polypropylene 1000 glycol (PPG-1000) and 2-hydroxyethyl acrylate (HEA) as the main raw material, using two step synthesis of oligomers, the optimum conditions were: the first step of the reaction temperature is 80 DEG C, without catalyst, the reaction time is 7h; the second step reaction temperature is 50 DEG C, 0.05% catalyst, inhibitor dosage 0.1%, reaction time 2h. using a rotary rheometer and light thermal system (Photo-DSC) the rheological properties of the synthetic products and blue polymerization properties were evaluated. The results showed that the best synthesis process, acrylic polyurethane prepared Enolate oligomers have the characteristics of low viscosity and excellent blue light polymerization performance, which can meet the requirements of blue printing textiles, digital printing ink, low polymer logistics and blue light polymerization.
Secondly, the dispersion stability from three aspects, the rheological properties, polymerization performance of ink system, discusses the active diluent monomer, pigment, wetting and dispersing agent on the influence of ink system. The optimum ink formulation: polyurethane acrylate 57.6wt% (wt% is the percentage of ink weight percentage, the same below), isobornylacrylate 28.8wt%, hydroxyethyl acrylate 9.6wt%, pigment 0.5wt%, 1wt% CAMPHORQUINONE (two 4-, 1wt% dimethylamino) ethyl benzoate, wetting and dispersing agent 1.5wt%.
Finally, the system of YISHION for cotton fabric wearability of ink, discusses the polymerization initiator system and light conditions on inkjet printing fabric, the influence of the wet rubbing fastness, and from the depth of color and fabric apparent morphology of the friction were observed before and after. The results show that the selection of ink printing fabric friction fastness can reach level 3 or above, with good color fastness to rubbing; printing color uniform, clear outline.

【學(xué)位授予單位】：浙江理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TS194.22

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