1、Silane Coupling Agent NH550

Overview of Silane Coupling Agent NH550 Silane coupling agent NH550 is a bifunctional silane compound containing amino and vinyl functional groups. It exhibits excellent chemical stability, hydrophilicity, and good film-forming properties.

2、Molecular dynamics simulation: The roles of silane coupling agent

The silane coupling agent attaining a certain crosslinking degree can enhance the interfacial adhesion with resin, delaying the separation of quartz fibers from epoxy resin.

3、硅烷偶联剂 Silane Coupling Agent (2)

硅烷偶联剂 又名硅烷处理剂、底涂剂，是一类具有特殊结构的低分子有机硅化合物，其通式为RSiX3，式中R代表与聚合物分子有亲和力或反应能力的活性官能团，如氧基、巯基、乙烯基、环氧基、酰胺基、氨丙基等;X代表能够水解的烷氧基，如卤素、烷氧基、酰氧基等。 硅烷偶联剂是在分子中具有两种以上不同反应基的有机硅单体，它可以和有机与无机材料发生化学键合 (偶联)，增加两种材料的粘接性。 通式中n为0～3的整数; X表示水解性官能基，它可与甲氧基、乙氧基、溶纤剂以及无机材料 (玻璃、金属、SiO2)等发生偶联反应; Y为有机官能团，如乙烯基、乙氧基、氨基、环氧基、甲基丙烯酰氧基、巯基等，可与无机材料、各种合成树脂、橡胶发生偶联反应。 典型硅烷 …

4、硅烷偶联剂 KH

硅烷偶联剂KH-550，化学名为3-氨丙基三甲氧基硅烷，是一种有机硅化合物。 它具有下列性质： 1. 外观：无色至浅黄色液体。 其中，CH3O代表甲氧基，Si代表硅，CH2代表亚甲基，NH2代表胺基， (CH3)2代表两个甲基。 3. 密度：约为0.97 g/cm³。 6. 可溶性：易溶于有机溶剂，如醇、醚等。 1. 作为表面活性剂：可用于改善填料、陶瓷粉体等材料与树脂的相容性，提高材料的耐磨性、耐久性和粘接强度。 2. 作为偶联剂：可用于改善填料与橡胶、塑料等材料的界面粘合能力，提高材料的强度、硬度和耐腐蚀性。 3. 作为改进剂：可用于涂料、油墨等产品，改善涂料与基材的附着力、耐久性和耐候性。 硅烷偶联剂KH-550的制法一般通过硅烷基化反应来合成。

5、硅烷偶联剂KH

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Chenguang KH

Chenguang KH-550 (γ-aminopropyltriethoxysilane) is a bifunctional silane coupling agent that strengthens adhesion between organic resins (epoxy, polyurethane) and inorganic substrates (glass, metals).

Kh

KH-550 is a versatile amino-functional coupling agent used over a broad range of applications to provide superior bonds between inorganic substrates and organic polymers.The silicon-contain portion of the molecule provides strong bonding to substrates.

Silane coupling agent KH

It is mainly used as surface treatment agent of glass fiber, also on surface treatment of glass beads, white carbon black, talc, mica, clay and flyash or other silicide.

Varieties and properties of common silane coupling agents

A silane coupling agent γ-aminopropyl triethoxysilane (KH-550) was used to improve the properties of grafted neoprene adhesive. As the ratio of KH-550 to grafted neoprene increased, the solid content increased.

Silane Coupling Agent KH

In recent years, new types of silane coupling agents have been developed which have a good coupling effect on polyolefins, but it is not widely used in cost and other properties. Uses Forms aminopropyl derivative of glass, an adsorbent for affinity chromatography.

Silane coupling agent NH550 is a critical chemical reagent used to enhance the surface properties of polymer materials. By reacting with hydroxyl groups on polymer surfaces, it forms stable chemical bonds, thereby improving the material’s adhesion, water resistance, and chemical resistance. This article introduces silane coupling agent NH550 from aspects such as its overview, applications, preparation methods, properties, and performance effects.

1. Overview of Silane Coupling Agent NH550 Silane coupling agent NH550 is a bifunctional silane compound containing amino and vinyl functional groups. It exhibits excellent chemical stability, hydrophilicity, and good film-forming properties. It can undergo cross-linking reactions with various polymer materials, enhancing their adhesion, water resistance, and chemical resistance. It is widely used in coatings, adhesives, sealants, and other fields.

2. Applications of Silane Coupling Agent NH550

1. Coatings: Silane coupling agent NH550 serves as an additive in coatings, improving the adhesion, water resistance, and chemical resistance of the coating. It reacts with hydroxyl groups on the polymer substrate surface via cross-linking, forming stable chemical bonds that enhance adhesion. Additionally, it cross-links with pigments and other fillers, improving the coating’s wear resistance and scratch resistance.

2. Adhesives: As an additive in adhesives, NH550 enhances adhesion, water resistance, and chemical resistance. It cross-links with hydroxyl groups on the polymer substrate surface, strengthening bonding. Furthermore, it reacts with resin components in adhesives, improving overall performance.

3. Sealants: In sealants, NH550 acts as an additive to boost adhesion, water resistance, and chemical resistance. It forms stable chemical bonds with hydroxyl groups on substrate surfaces, reinforcing sealant adhesion. It also cross-links with other sealant components, enhancing comprehensive performance.

3. Preparation Methods of Silane Coupling Agent NH550 Multiple methods exist for synthesizing NH550. One approach involves mixing a silane compound with amino and vinyl functional groups with a catalyst and conducting polymerization at high temperatures. Another method combines the silane compound with a catalyst and generates NH550 via hydrolysis. Additionally, a condensation reaction pathway has been proposed, where the silane compound and catalyst are mixed and reacted to form NH550.

4. Performance and Application Effects of Silane Coupling Agent NH550 NH550 boasts strong chemical stability, hydrophilicity, and film-forming properties, making it widely applicable in coatings, adhesives, and sealants. In coatings, it improves adhesion, water resistance, and chemical resistance; in adhesives, it enhances bonding strength and durability; in sealants, it increases adhesion and environmental resistance.

silane coupling agent NH550, as a vital chemical reagent, plays a significant role in coatings, adhesives, and sealants. By cross-linking with hydroxyl groups on polymer substrates, it markedly improves material adhesion, water resistance, and chemical resistance. With advancements in science and technology, NH550 is expected to find broader applications, offering greater convenience and benefits.