【作者】 孔祥永；

【导师】 姚伯龙；

【作者基本信息】 江南大学 ， 材料学， 2011， 硕士

【摘要】 本文围绕当前环境保护、建筑节能紧迫形势的需要,主要对适于建筑玻璃用的节能隔热、快速涂装的高性能纳米透明隔热涂料体系进行了研究。本文研究的主要内容为:一是选择制备适宜的涂料体系;二是研究制备节能隔热纳米功能材料。UV固化水性聚氨酯结合了UV固化的优点和水性聚氨酯的优点,是适于建筑玻璃用的高性能成膜物。本文用季戊四醇与丙烯酸直接酯化制备季戊四醇二丙烯酸酯单体,研究了二者不同摩尔比对单体结构的影响,得到了最佳配比;通过FTIR和¹HNMR谱证实了单体的结构。将季戊四醇二丙烯酸酯作为扩链剂,在聚氨酯分子链上引入双键,制得高性能UV固化水性聚氨酯预聚物。对研制的UV固化水性聚氨酯涂料进行了基本性能测试。本文以SnC1₄·5H₂O、CrC1₃·6H₂O和InCl₃·4H₂O为主要原料,采用共沉淀法制得了具有隔热性能的纳米功能粉体。运用X射线衍射（XRD）、扫描电镜（SEM）对制得的纳米功能粉体进行表征,分析了铬掺杂量、铟掺杂量、煅烧温度对纳米功能粉体的影响。分析结果显示,纳米功能粉体和SnO₂一样都是四方相金红石结构,Cr、In原子的掺杂并没有改变SnO₂的晶格结构,粉体形貌均一,粒径约20-30nm;二元纳米功能粉体中,随着Cr掺杂量的不断增加,XRD衍射峰强度逐渐减弱,粉体晶粒逐渐变小;三元纳米功能粉体中,固定铟的掺杂量不变,随着铬掺杂量的不断增加,粉体的XRD衍射峰强度逐渐减弱然后增强,粉体晶粒逐渐减小然后变大,固定铬的掺杂量不变,随着铟掺杂量的不断增加,粉体的衍射峰强度逐渐减弱然后逐渐增强,粉体晶粒逐渐减小然后逐渐增大。随着煅烧温度不断升高,二元纳米功能粉体XRD衍射峰的强度逐渐增加,晶粒尺寸逐渐增大。将纳米功能粉体分散在去离子水中制备纳米功能粉体水分散液,分析了不同的分散方法对水分散液的影响。该纳米功能粉体水分散液的适宜制备方法为:使用分散剂EFKA4550,调节体系pH值为9-10,以超声分散30min后,再球磨分散3h。其粒子在水中均匀分散,平均粒径为20-30nm。研制的UV固化水性聚氨酯预聚物,与分散稳定的纳米功能粉体水分散液复合,制备了UV固化水性聚氨酯透明隔热涂料,采用自制的隔热测试装置测试涂料的隔热性能。综合涂膜的性能、成本等因素考虑,选择纳米功能粉体含量4%,涂膜厚度15μm。涂膜玻璃的可见光透过率达76%。平衡时,涂膜玻璃的装置内腔温度比空白玻璃的低10℃左右,涂膜具有很好的硬度、耐磨性等基本性能。该涂料作为一种新型的节能环保涂料,符合当前涂料行业的发展趋势,具有较好的实用价值和应用前景。更多还原

【Abstract】 This paper focus on pressing situation on the needs of the the current environmental protection and energy-saving on building, the energy-saving insulation and high performance nano transparent insulation coating system that suitable for the construction glass was studied. The main content of this paper is: 1. choose and prepare for a suitable coating system; 2. study and prepare for energy-saving insulation nano functional materials.The UV curing water-borne polyurethane will have a good development prospect in future because it combines the advantages of UV curing and waterborne polyurethane. In this dissertation , pentaerythritol diacrylate was prepared by esterificate directly with pentaerythritol and acrylic. The influence to the structure of the pentaerythritol diacrylate with the different mole ratio between pentaerythritol and acrylic was researched, and a best formula was gained, and the structure of the pentaerythritol diacrylate was analyzed with FTIR and 1HNMR spectrum. Pentaerythritol diacrylate was taken as chain extender, and the polyurethane chain was embed C=C bond, and high performance UV curing water-borne polyurethane resin was prepared. The basic performance of UV curing water-borne polyurethane coating was tested.In this paper, raw materials is SnC1₄·5H₂O, CrC1₃·6H₂O and InCl₃·4H₂O. The thermal insulation functional nanopowder have been prepared by chemical co-precipitation method. XRD, SEM were applied to token the functional nonopowders. We have studied the effect on the functional nonopowder with Cr doping content, the In doping content and calcined temperature. The results is the functional nonopowder have tetragonal phase crystal structure with the same as SnO₂ when Cr and In was doped to it. The size of the powder particle that have homogeneous morphology is about 20-30nm. In binary functional nonopowder, with the Cr doping content increasing, the XRD diffraction peak intensity gradually weakened and the size of powder particle decreases. In ternary functional nonopowder, keep the amount of In doping content unchanged, with the Cr doping content increasing, the XRD diffraction peak intensity gradually weakened then increased and the size of particle decreased then increased; and keep the amount of Cr doping content unchanged, with the In doping content increasing, the XRD diffraction peak intensity gradually weakened then increased and the size of powder particle decreased then increased. In binary functional nonopowder, as the calcinations temperature increasing, the XRD diffraction peak intensity gradually increased, the size of powder particle increased.The functional nonopowder aqueous suspension was prepared by the method of functional nanopowder was scattered into deionized water. The influences of the different method of dispersion were discussed. The fitting preparation condition of the stable functional nonopowder aqueous suspension is as flowing: EFKA4550 used as dispersing agent, pH is 9-10, ultrasonic dispersion for 30min and then milling 3h. The average size of powder particle in the aqueous suspension is 20-30nm.The synthesized UV curing water-borne polyurethane resin was complexed with functional nonopowder aqueous suspension and the UV curing water-borne polyurethane curable transparent thermal insulation coatings have been prepared and the thermal insulation performance was tested with homemade thermal insulation test device. Considering from general performance, cost and some other factors of coating, the best content of functional nonopowder is 4.0 %, and the best thickness of the coating is 15μm. The visible light transmittance of the coating glass is 76%. When achieve equilibrium, the coating glass can reduce the temperature about 10℃than the blank glass. The coating have much good basic performance, such as hardness, wear-resistant and so on. As a new kind of energy saving and environmental friendly coating, it accord the development trend of coating, and it has certain practical application value and market prospect.更多还原