1、有机硅改性水性聚氨酯涂层的制备及其防污性能

摘要:以甲苯二异氰酸酯(TDI) 、聚己二酸-1,4- 丁二醇酯(PCL2000) 和羟基硅油(PDMS)为主要原料,合成了一系列有机硅改性的水性聚氨酯(PU)涂层。 采用红外光谱、粒径分析、差示扫描量热、热重分析、接触角分析、偏光显微分析等表征了材料的结构与性能。 将涂覆了改性PU涂层的面板浸泡在河水中,对比了不同质量分数PDMS 的PU涂层的实际防污效果。...

2、水性有机硅改性聚酯树脂的合成以及应用_百度文库

Research indicated that waterborne organosilicon-modified polyester resin has better properties in thermostability，rigidity and flexibility containing about 30% intermediate of organosilicon，which is most dominant in cost performance.

3、Preparation and properties of end

Against this background, an end-group cross-linked organosilicon modified waterborne polyurethane (SWPU) binder for wash-free polyester digital inkjet dyeing was prepared in this study.

4、Synthesis and characterization of organosilicon modified self

Therefore, this work provides practical prospects for the industrial application of organosilicon modified acrylate polymer in the field of matte coatings. 1. Introduction. In recent years, consumers have paid great attention to matte coating surface decoration.

5、Organosilicon

The prepared organosilicon-modified WPUs (SDC-WPUs) can be used as a coating for medical gloves, thereby allowing for a reduction of dust pollution during use and the risk of allergic reaction of the wearer.

High

O rgano si licon w aterborne p olyurethane (OSi-WPU) has gained great attention for its improved water resistance and thermal stability, offering great improvement over conventional two-component WPUs. These improvements are primarily achieved by incorporating organosilicon (OSi) into the PU matrix.

Novel organosilicon

In this study, a trihydroxy-functionalized organosilicon intermediate was prepared by the reaction of primary amine groups from isopropanol amine (MIPA) with epoxy groups presented in (3-glycidoxypropyl) trimethoxy silane (GPTMS).

Preparation and properties of end

Specifically, isophorone diisocyanate and polypropylene glycol were used as the monomers of the hard and soft chain segments of the polymer, respectively, and KH-560 as the capping agent, to prepare a series of end-group cross-linked organosilicon modified waterborne polyurethane (SWPU).

Synthesis and characterization of organosilicon

Here, wear-resistant and self-matting WPU resin was prepared via using hydroxypropyl-terminated polydimethylsiloxane (PDMS) in the preparation of prepolymer and N -2-aminoethyl-3-aminopropyltrimethoxysilane (KH-792) as a post-chain extender.

Organosilicon

Herein, we prepared a double crosslinked WPUs with excellent performance using isophorone diisocyanate and polytetrahydrofuran as raw materials, and trihydroxy polyoxypropylene ether, pentaerythritol, and dihydroxy silicone oil as functional monomers.

In the field of modern material science, the development and application of synthetic polymer materials are continuously driving industrial and technological advancements. Among these, waterborne organosilicon-modified polyester resin, as a novel high-performance material, has garnered significant attention due to its unique properties. This article explores in depth the characteristics, applications, and future prospects of waterborne organosilicon-modified polyester resin from multiple perspectives.

Characteristics Waterborne organosilicon-modified polyester resin is a high-performance polymer synthesized by modifying a polyester base with waterborne organosilicon monomers. It retains the excellent processing and mechanical properties of traditional polyester resins while offering enhanced durability, including superior water resistance, chemical resistance, weather resistance, and electrical insulation.

From a physicochemical standpoint, this resin exhibits remarkable advantages:

1. Water Resistance: It maintains stability in humid environments, making it suitable for outdoor construction, marine applications, and other scenarios requiring stringent waterproofing.
2. Chemical Resistance: The incorporation of organosilicon molecules significantly improves its resistance to acids, alkalis, salts, and other corrosive substances, expanding its usability in industries such as chemicals, petroleum, and electronics.
3. Electrical Insulation: Its low dielectric constant and high resistivity make it ideal for protective coatings in electrical equipment and wire-and-cable insulation.

Mechanical Performance The resin also excels in mechanical properties. It boasts high tensile and compressive strength, withstanding substantial external forces without deformation or fracture. Additionally, its flexibility allows adaptation to complex shapes and structural demands.

Environmental Benefits Compared to conventional solvent-based coatings, waterborne organosilicon-modified polyester resin reduces volatile organic compound (VOC) emissions, aligning with eco-friendly standards. Its water-based formulation also lowers fire risks during application, enhancing workplace safety.

Applications This versatile material is widely used in:

• Construction Coatings: Exterior wall paints, floor coatings, and roof waterproofing systems that combine aesthetic appeal with long-term durability.
• Anticorrosion Coatings: Dense protective films for metal surfaces in infrastructure, pipelines, and marine equipment.
• Electrical Insulation: Layers for cables, transformers, and electronic components to shield against environmental damage.
• Composites: Reinforcement in automotive parts, aerospace components (e.g., aircraft exteriors and engine parts), and consumer electronics.

Future Prospects As technology advances and environmental regulations tighten, waterborne organosilicon-modified polyester resin is poised to play a pivotal role in sustainable materials. Its eco-friendly profile, coupled with tailored performance, positions it as a key candidate for innovation in sectors such as green building, renewable energy, and smart manufacturing. Continuous research may further optimize its properties, broadening its applicability and reinforcing its status as a cornerstone of next-generation materials.

Waterborne organosilicon-modified polyester resin integrates exceptional water resistance, chemical resilience, mechanical robustness, and environmental sustainability. Its growing adoption across industries underscores its potential to shape the future of high-performance materials. With ongoing technological progress, this resin will undoubtedly remain at the forefront of material science innovation.