论文总字数：20962字

摘 要

纳米氧化钨铯（Cesium tungsten oxide，Cs₂WO₄）具有良好的近红外吸收能力，将其与水性聚氨酯乳液自身所具有的高黏结强度和可加工性进行有效复合，可制备出隔热性能优良的纳米透明涂料，本课题主要使用水性聚氨酯（WPU/UV-WPUA）和Cs₂WO₄水性分散液，以不同的颜基比混合，通过添加相关助剂（光引发剂等）以制备隔热性能优良的透明隔热涂料。

通过将Cs₂WO₄与水性聚氨酯以不同的颜基比混合，从而制得透明纳米隔热涂膜，通过太阳膜测试仪可测定其紫外阻隔率（UV)，红外阻隔率(IR)，可见光透过率(VL)，太阳光总投射比(SHGC)。其次，根据相关国标使用铅笔硬度计测量所制得的涂膜具有较好的硬度，并且根据光学接触角测量仪测量涂膜的水滴表面接触角，以评断涂膜表面的润湿能力。以及，将涂膜至于去离子水和无水乙醇中24h以上，以此来评判涂膜的耐水耐溶剂性能。最后，使用隔热温差测试仪（自制）准确客观地评价隔热玻璃涂料的隔热功能。结果表明：Cs₂WO₄具有良好的近红外阻隔性，能够起到较好的隔热作用，并且拥有一定的透明度和硬度，非常适合用作制备透明隔热涂料。尤其，以UV-WPUA作为成膜物质，PETA的含量为3%时，涂膜硬度可达4H~5H，耐水耐溶剂优良，红外阻隔率可达88.6%，紫外阻隔率可达55.6%，可见光透过率为72.2%。

关键词：水性聚氨酯基 纳米氧化钨铯 透明隔热涂料 太阳膜测试仪。

Preparation of Waterborne Polyurethane Based Thermal Insulation Coatings

Abstract

Cesium tungsten oxide (Cs₂WO₄) has good near-infrared absorption ability, and it is effectively compounded with the high bonding strength and processability of the waterborne polyurethane emulsion itself, and nano-transparent material with excellent heat insulation performance can be prepared. Coatings. This project mainly uses water-based polyurethane (WPU/UV-WPUA) and Cs₂WO₄ aqueous dispersions, which are mixed at different ratios of pigments and bases, and additives (photoinitiators, etc.) are added to prepare the insulation. Excellent thermal insulation paint.

By mixing Cs₂WO₄ and waterborne polyurethane in different base ratios, a transparent nano-insulation coating film is prepared, and the UV blocking ratio (UV) and infrared blocking ratio (IR) can be measured by a solar film tester. ), Visible light transmittance (VL), Sunlight total throw ratio (SHGC). Second, according to the relevant national standard, the hardness of the coating film obtained by measuring with a pencil hardness meter is measured, and the contact angle of the water droplet surface of the coating film is measured according to an optical contact angle meter to judge the wetting ability of the coating film surface. And, the coating film was deionized water and anhydrous ethanol for more than 24 hours, in order to judge the water and solvent resistance of the coating film. Finally, use the thermal insulation temperature difference tester (homemade) to accurately and objectively evaluate the thermal insulation of the insulating glass coating. The results show that the nano-tungsten trioxide (Cs₂WO₄) has good near-infrared barrier properties, can play a good thermal insulation effect, and has a certain degree of transparency and hardness, and is very suitable for the preparation of transparent thermal insulation coatings. In particular, with UV-WPUA as a film-forming substance, PETA content of 3%, the coating hardness up to 4H ~ 5H, water and solvent resistance, infrared blocking rate of up to 88.6%, UV blocking rate of up to 55.6%, visible light The transmittance is 72.2%.

Key words:Waterborne polyurethane；Tungsten Oxide；Transparent heat insulation coating； Solar film tester.

目 录

摘要 I

Abstract II

第一章 文 献 综 述 1

1.1 引言 1

1.2 水性聚氨酯概述 1

1.2.1水性聚氨酯研究进展 2

1.2.2水性聚氨酯的制备 2

1.3 水性聚氨酯基透明隔热涂料概述 3

1.3.1水性聚氨酯基透明隔热涂料组成 3

1.3.2透明隔热涂料研究进展 3

1.3.3 UV 固化 4

1.4 纳米氧化钨铯改性水性聚氨酯 4

1.4.1 纳米氧化钨铯改性水性聚氨酯隔热机理 4

1.4.2 纳米氧化钨铯改性水性聚氨酯隔热涂料研究进展及发展方向 5

1.5 研究的内容、难点、目的和意义 5

1.5.1 研究内容 5

1.5.2 研究的难点 5

1.5.3 研究的目的和意义 6

第二章 实验部分 7

2.1 实验原料 7

2.2 制备方法 7

2.2.1 水性聚氨酯乳液的合成 7

2.2.2 水性聚氨酯基隔热涂膜的制备 7

2.3 材料表征与性能测试 8

2.3.1 硬度性能测试 8

2.3.2 涂膜接触角测定 8

2.3.3 涂膜耐水耐溶剂性能测试 8

2.3.4 光学性能测试 8

2.3.5 隔热性能测试 8

第三章 结果与讨论 10

3.1 涂膜硬度测试分析 10

3.2 涂膜水滴接触角的亲水性分析 11

3.3 隔热涂膜耐水耐溶剂性能的分析 12

3.4 光学性能测试分析 14

3.5 涂膜实际隔热效果分析 15

第四章 结论 20

参考文献 21

致谢 23

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