1、硅烷偶联剂 Silane Coupling Agent (2)
硅烷偶联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。 在进行偶联时，首先X基水形成硅醇，然后与无机粉体颗粒表面上的羟基反应，形成氢键并缩合成—SiO—M共价键 (M表示无机粉体颗粒表面)。 同时，硅烷各分子的硅醇又相互缔合齐聚形成网状结构的膜覆盖在粉体颗粒表面，使无机粉体表面有机化。 其化学反应的简要过程如下： 水解： 缩合： 氢键形成： 共价键形成： 硅烷偶联剂在高聚物基复合材料中的作用机理主要有以下几种理论：
2、Recent Progress in Silane Coupling Agent with Its Emerging Applications
This paper presents the effects of silane coupling agent, which includes interfacial adhesive strength, water treatment, polymer composites and coatings that make it valuable for multi-materialization.
3、硅烷偶联剂 硅烷复配产品 硅烷聚合产品
硅烷偶联剂在制备有机聚合物与玻璃、矿物和金属等无机填料的复合材料中发挥着重要作用。 硅烷偶联剂的一般结构为 (RO)3-Si-R'-X，其中 X 为有机官能团，R'为小的亚烷基链节，RO 为可水解基团，如烷氧基。 有机官能团和烷氧基可分别与聚合物基体和填料颗粒形成强键。 恒达硅烷偶联剂包括氨基硅烷、甲基丙烯酸酯硅烷、环氧硅烷、乙烯基硅烷、巯基硅烷、烷基硅烷、硅酸乙酯、氯硅烷、异氰酸酯硅烷、苯基硅烷、脲基硅烷和硫硅烷。 它们广泛应用于玻璃纤维、电子、风电、涂料、粘合剂、XLPE 电线电缆和热水管、油田钻井、纺织、橡胶和铸造等领域，以提高应用产品的质量和性能。 硅烷偶联剂在制备有机聚合物与玻璃、矿物和金属等无机填料的复合材料中发挥着 …
4、Silane Coupling Agents
Many conventional coupling agents are frequently used in combination with 10-40% of a non-functional dipodal silane, where the conventional coupling agent provides the appropriate functionality for the application, and the non-functional dipodal silane provides increased durability.
Silane Coupling Agent
Silane coupling agents play an important role in the preparation of composites from organic polymers and inorganic fillers such as glass, minerals, and metals.
Silane Coupling Agent
There are three basic approaches for using silane coupling agents. The silane can be used to treat the surface of the inorganic materials before mixing with the organic resin or it can be added directly to the organic resin or holistic mixing (in organic-inorganic mixture).
Limitless silanes
Silane coupling agents have the unique chemical and physical properties to not only enhance bond strength, but also prevent de-bonding at the interface due to use and aging, especially in humid conditions. The coupling agent provides a stable bond between two otherwise poorly bonding surfaces.
Silane Coupling Agent Manufacture Top10 in China
China is home to several leading silane coupling agent manufacture, known for their innovation and production capacity. Below is a list of the top 10 silane coupling agent manufacture in China.
硅氧烷偶联剂
1. 什么是 硅烷偶联剂？ 1.1 硅烷偶联剂简称 SCA （silane coupling agent），通常以 Y-R-SiX3 表示其结构。
Silane coupling agent in biomedical materials
Metals, proteins, and hydrogels are using silane coupling agent to link parts commonly. The mild reaction environment also brings advantages for the spread of the silane coupling agent. In this review, we summarize two main methods of using the silane coupling agent.
Silane coupling agents are critical chemical products widely used in industries such as coatings, inks, plastics, rubber, and composite materials. Among the numerous silane coupling agents available, Yulin silane coupling agents have become a focal point in the industry due to their excellent performance and broad application prospects. This article explores Yulin silane coupling agents from multiple perspectives.
1. Overview of Yulin Silane Coupling Agents
Yulin silane coupling agents are compounds containing siloxane bonds (Si-O-Si) that chemically bond with polymer substrates via silicon-hydrogen (Si-H) bonds. This enhances material adhesion, water resistance, and chemical resistance. These coupling agents not only improve compatibility between polymers but also enhance mechanical properties, such as tensile strength and wear resistance.
2. Classification of Yulin Silane Coupling Agents
Yulin silane coupling agents are categorized based on their functions and applications. Common types include:
- Vinyl silane coupling agents: Suitable for improving adhesion in rubber and plastics.
- Amino silane coupling agents: Enhance bonding in composites and fiber-reinforced materials.
- Epoxy silane coupling agents: Used for improving durability in coatings and adhesives. Each type has distinct chemical structures and performance characteristics tailored to specific applications.
3. Applications of Yulin Silane Coupling Agents
1. Coatings Industry
In coatings, Yulin silane coupling agents improve adhesion and longevity. They form stable chemical bonds with resins, enhancing water resistance, weather resistance, and aesthetic properties like leveling and coverage.
2. Plastics Industry
In plastics, these agents optimize processing performance and product quality. They reduce energy consumption during molding, minimize material loss, and improve heat resistance and mechanical strength, extending product lifespan.
3. Rubber Industry
For rubber products, Yulin silane coupling agents boost elasticity and compression resistance by cross-linking rubber molecules. They also enhance aging resistance and ozone resistance, prolonging the life of rubber goods.
4. Production Methods of Yulin Silane Coupling Agents
Yulin silane coupling agents are manufactured using methods such as:
- Emulsion polymerization: The most common method, allowing control over product performance and purity.
- Gas phase method: Suitable for large-scale industrial production.
- Solution method: Used for high-purity or specialized formulations.
5. Market Prospects of Yulin Silane Coupling Agents
With advancements in technology and stricter environmental standards, demand for Yulin silane coupling agents is expected to grow steadily. Their applications in high-performance materials, new energy, biomedicine, and other fields will expand significantly. The market size is projected to maintain robust growth in the coming years.
As a vital chemical product, Yulin silane coupling agents attract significant attention due to their performance and potential. By refining production processes and enhancing product quality, Yulin silane coupling agents are poised to play a larger role in future industries. It is anticipated that they will soon become indispensable across diverse sectors.
