1、Synthesis and Characterization of Silane

In this study, silane coupling agent (KH-560) was employed to modify sodium silicate, and the modified sodium silicate was then incorporated as a reinforcing phase into polyurethane to ultimately prepare a modified sodium silicate/polyurethane coating.

2、Mechanism confirmation of organofunctional silanes modified sodium

Hybrid reinforced sodium silicate/polyurethane (SS/PU) composites mainly derived from low-cost SS and polyisocyanate are produced by a one-step method based on the addition of...

3、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.

4、How Silane Coupling Agents Become Secret Weapons in

In particular, KH-570 and KH-560 are two types of silane coupling agents that, when mixed in a 3:2 ratio, can significantly enhance adhesion to substrates. KH-570 has methacryloxy groups, while KH-560 contains glycidoxy groups.

5、Chemical and physical interaction between silane coupling agent with

Physical and chemical interaction between silica and Si-747 can exist simultaneously. This physical interaction is stable in water because of hydrogen bonds. Properties of NR composites are positively affected by this physical interaction.

Sodium silicate incorporation in silane coupling agents

Sodium silicate-incorporated silane coupling agents offer superior adhesion properties for various substrates used in electronic components, contributing to enhanced product performance and longevity.

Silane Coupling Agent

Directly add the diluent of silane coupling agent and organic solvent when mixing organic resins and inorganic fillers. The silane coupling agent dosage is 0.2~2% or so.

Sodium Silicate Silicon Alkoxide Coupling Agent

In this study, silane coupling agent (KH-560) was employed to modify sodium silicate, and the modified sodium silicate was then incorporated as a reinforcing phase into polyurethane to ultimately prepare a modified sodium silicate/polyurethane coating.

Recent Progress in Silane Coupling Agent with Its Emerging Applications

Silane coupling agent contain both organic functional and alkoxy groups in one molecule. The silanol group forms from the alkoxy group via hydrolysis.

Silane Coupling Agent_化工百科

Silane Coupling Agent - 简介 正硅酸乙酯，又称为乙基正硅酸酯。 它是一种有机硅化合物，由乙醇和正硅酸通过缩合反应得到。 它可溶于有机溶剂，如醇类、醚类、烃类等。 正硅酸乙酯在化学工业中广泛应用，主要用作有机硅的预聚体和交联剂。

Sodium silicate silane coupling agent is an important organosilicon compound that plays a significant role in many industrial applications. Sodium silicate exhibits excellent chemical stability, water resistance, and acid resistance, making it widely used in coatings, adhesives, sealing materials, and other fields. This article provides a detailed introduction to the preparation methods, applications, and related research progress of sodium silicate silane coupling agents.

Preparation Methods of Sodium Silicate Silane Coupling Agent

There are various methods for preparing sodium silicate silane coupling agents, with hydrolysis and acid-catalyzed methods being the most common.

1. Hydrolysis Method:

   • First, dissolve a silicate salt in water and add an alkali metal hydroxide or ammonia as a catalyst to react the silicon atoms in the silicate with hydroxide ions, producing hydrolyzed silicate products.
   • Next, adjust the pH to further hydrolyze the products, forming sodium silicate.
   • Finally, obtain the sodium silicate product through filtration, washing, and drying.

2. Acid-Catalyzed Method:

   • First, dissolve a silicate salt in water and add an acid (such as sulfuric acid or hydrochloric acid) to react the silicon atoms in the silicate with hydrogen ions, producing hydrolyzed silicate products.
   • Next, adjust the pH to further hydrolyze the products, forming sodium silicate.
   • Finally, obtain the sodium silicate product through filtration, washing, and drying.

Applications of Sodium Silicate Silane Coupling Agent

Sodium silicate silane coupling agents are widely used in numerous industrial fields.

1. Coatings Industry:

   • Sodium silicate silane coupling agents can act as curing agents for coatings, improving adhesion, wear resistance, and weather resistance.
   • In coatings, they can interact with other chemicals (e.g., resins, pigments) to form stable mixtures.

2. Adhesives Industry:

   • Sodium silicate silane coupling agents can serve as curing accelerators for adhesives, enhancing bonding strength and durability.
   • In adhesives, they can interact with other chemicals (e.g., resins, solvents) to form stable mixtures.

3. Sealing Materials Industry:

   • Sodium silicate silane coupling agents can function as cross-linking agents for sealing materials, improving temperature resistance and chemical resistance.
   • In sealing materials, they can interact with other chemicals (e.g., resins, fillers) to form stable mixtures.

Research Advances in Sodium Silicate Silane Coupling Agents

In recent years, advances in science and technology have driven progress in research on sodium silicate silane coupling agents.

1. Development of Novel Silane Coupling Agents:

   • Researchers have discovered that altering the structure of silane coupling agents can create new variants with different properties.
   • These novel agents can be applied in broader industrial fields, such as electronic packaging and automotive manufacturing.

2. Modification Studies of Sodium Silicate Silane Coupling Agents:

   • Researchers have modified sodium silicate silane coupling agents to enhance their performance.
   • For example, introducing additional functional groups or nanomaterials can improve adsorption properties and mechanical performance.

3. Environmental Impact Studies:

   • Studies have assessed the environmental risks of sodium silicate silane coupling agents under practical conditions.
   • Results indicate that these agents pose minimal environmental hazards when used normally, but post-disposal treatment remains a concern.

sodium silicate silane coupling agents, as critical organosilicon compounds, have extensive industrial applications. By optimizing preparation methods and expanding application fields, they will continue to contribute to human society’s development.