论文总字数：25370字

摘 要

本文从水性与溶剂型涂料两个方面对高硬度透明隔热涂料的制备进行了研究。本文水性涂料以有机硅改性水性聚氨酯（WPUA）为基体，分别用有机硅树脂和氨基型硅烷偶联剂KH550对水性聚氨酯进行改性，通过实验考察了有机硅树脂与KH550加入量的不同对WPUA改性后制备而成的乳液涂膜性能的影响。溶剂型涂料以有机硅树脂为基体，分为单组分与双组分涂料两种，其中单组分涂料直接在硅树脂中加入催化剂以及纳米隔热浆料MTO等物理共混，通过实验考察固化时间、颜基比、固含量以及催化剂三乙醇胺含量等对涂层性能的影响，并对涂层进行了放大隔热性能测试；双组分隔热涂料是在单组分的基础之上，加入环氧6360与KH550制备而成的，通过实验考察了KH550含量及固化时间对涂层性能的影响，并对涂层进行了光透过率测试与红外光谱分析。研究结果表明，有机硅改性水性聚氨酯乳液涂层性能较差，达不到使用标准，故未作进一步的性能探究；单组分有机硅隔热涂料160℃高温固化1h硬度可达3H，双组分有机硅隔热涂料室温固化3d硬度也可达到3H，可见光透过率达70%，近红外光透过率仅为8%，隔热温差可达7℃，涂层性能均已达到建筑用溶剂型隔热涂料质量标准，各方面性能优良，为溶剂型高硬度隔热涂料的进一步推广与发展提供了理论依据。

关键词：高硬度 涂料 有机硅树脂 有机硅改性水性聚氨酯 MTO

Preparation and characterization of high hardness transparent heat insulation coatings

Abstract

In this paper, the preparation of high-hardness transparent heat-insulating coatings was studied from two aspects of water-based and solvent-based coatings. The waterborne coatings of this paper are based on silicone modified waterborne polyurethane (WPUA), which are modified with silicone resin and amino-type silane coupling agent KH550. The effects of different amounts of silicone resin and KH550 on the properties of emulsion coating prepared by WPUA were investigated by experiments. Solvent-based coatings are based on silicone resins which are available in single-component and two-component coatings. The one-component coating is directly added to the silicone resin and the Nano-insulation slurry MTO and other physical blending. The effects of curing time, pigmentation ratio, solid content and catalyst triethanolamine content on the coating properties are investigated experimentally. The coating was tested for amplified thermal insulation properties. The two-component heat-insulating coating was prepared on the basis of one-component, then mixed epoxy 6360 and KH550. The effect of KH550 content and curing time on the coating properties was investigated and the coating was lighted. Transmission test and infrared spectroscopy. The results show that the performance of the silicone modified WPUA coating cannot meet the standard of use, so no further performance is explored. One-component silicone thermal insulation coating can be cured at 160°C for 1h and can be up to 3H. The two-component silicone thermal insulation coating can also achieve 3H hardness at room temperature. Moreover, the visible light transmittance can reach 70%, the near-infrared light transmittance is only 8%, the thermal insulation temperature difference can reach 7°C. The coating performance has reached the quality standard of solvent-based thermal insulation coating for construction, and the performance is excellent in all aspects, which provides a theoretical basis for the further promotion and development of solvent-based high-hardness thermal insulation coatings.

Key words: High hardness; Coatings; Silicone resin; Silicone modified waterborne polyurethane; MTO

目 录

摘 要 I

Abstract II

第一章 绪论 1

1.1前言 1

1.2有机硅改性水性聚氨酯涂料 2

1.2.1水性聚氨酯涂料的特点 2

1.2.2改善水性聚氨酯性能的方法 3

1.3有机硅树脂涂料 4

1.3.1有机硅‌树脂涂料‌的特点 4

1.3.2改善有机硅树脂涂料性能的方法 5

1.4纳米透明隔热涂料 6

1.4.1隔热机理 6

1.4.2玻璃用透明隔热涂料评定标准 7

1.4.3目前存在的问题 8

1.5本文的研究内容及意义 8

1.5.1研究内容 8

1.5.2意义 9

第二章 实验部分 10

2.1实验原料与设备 10

2.1.1 实验原料 10

2.1.2 实验仪器 11

2.2有机硅改性水性聚氨酯的制备 11

2.2.1有机硅树脂改性水性聚氨酯的制备 11

2.2.2KH550改性水性聚氨酯 12

2.3有机硅树脂基隔热涂料的制备 13

2.3.1单组份有机硅树脂基隔热涂料的制备 13

2.3.2双组分有机硅树脂基隔热涂料的制备 14

2.4涂层的制备 15

2.4.1玻璃基材预处理 15

2.4.2涂层的涂覆 16

2.4.1涂层的固化 16

2.5涂层性能测试 16

2.5.1红外光谱分析 16

2.5.2硬度测试 16

2.5.3光透过率测试 16

2.5.4隔热温差测试 17

2.5.5接触角测试 17

第三章 实验结果与讨论 18

3.1有机硅树脂改性水性聚氨酯的制备 18

3.1.1有机硅树脂含量对有机硅改性WPUA性能的影响 18

3.1.2红外谱图分析 19

3.2KH550含量对改性水性聚氨酯性能的影响 22

3.3单组分有机硅树脂基隔热涂料的制备 22

3.3.1固化时间对涂层性能的影响 22

3.3.2颜基比对涂层性能的影响 23

3.3.3固含量对涂层性能的影响 23

3.3.4三乙醇胺含量对涂层性能的影响 24

3.3.5涂层隔热性能测试 25

3.4双组分有机硅树脂基隔热涂料的制备 27

3.4.1固化时间对涂层性能的影响 27

3.4.2MTO对光透过率的影响 27

3.4.3红外光谱分析 29

第四章 实验结论与展望 30

参考文献 31

致谢 33

第一章 绪论

1.1前言

我国能源消耗巨大，其中建筑能耗占全国能源总消耗的40%，占比巨大，有效降低建筑能耗带来的能源消耗，将大大提高我国的能源利用率。建筑能耗主要指在采暖、空调、照明等过程中产生的能量损耗^[1]。其中，最主要的能耗来源是采暖和空调，所以实现室内冬暖夏凉，降低热量耗散，才能有效降低建筑使用过程中带来的能耗。传统的建筑节能材料如空心粘土砖等已不能完全满足现阶段的建筑节能要求，许多新型的建筑节能材料不断涌现而出，如建筑墙体表面涂覆的保温隔热材料、用于透明玻璃表面的隔热涂料等。

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