Organosilane coupling agents are a type of organic silicon compound with a special structure, which plays an important role in improving the interfacial properties between inorganic and organic substances, enhancing the overall performance of composite materials, and so on. The following is a detailed introduction about organosilane coupling agents:
Definition and Structure
Organosilane coupling agent is a type of organic silicon compound that contains two different chemical functional groups simultaneously. It has functional groups that bind to both inorganic and organic surfaces in its structure, hence it is called a "molecular bridge". The typical molecular formula structure is Y-R-Si (OR) ∝, where Y is an organic functional group (such as methyl, vinyl, amino, etc.), R is an alkyl group, and Si (OR) ∝ is a siloxy group (where OR represents a hydrolyzable group, such as methoxy, ethoxy, etc.).
Mechanism of action
Improve interface performanceThe silane oxygen group in organic silane coupling agents is reactive with inorganic substances and can effectively combine with inorganic materials such as glass and metals to form new functional groups; At the same time, its organic functional groups can combine with organic materials such as coatings, rubber, plastics, etc., thereby enhancing the bonding strength between organic and inorganic materials.
Improve the performance of composite materialsOrganosilane coupling agents can not only improve the mechanical properties of composite materials, but also enhance their water resistance, heat resistance, and weather resistance.
application area
Organosilane coupling agents have a wide range of applications in multiple fields:
Cable industry：As a crosslinking agent and thickening agent, it can improve the thermal deformation stability, mechanical strength, wet electrical properties, chemical resistance, etc. of the modified material.
Fiberglass and composite materials: It is a key component of glass fiber reinforced polymer, which can improve the mechanical properties of dry and wet states, stabilize electrical properties, improve processing characteristics, and enhance the processing of glass fibers.
Mineral and filler processing: The filler can be surface treated in advance or directly added to the resin to improve its dispersion and adhesion in the resin, and to enhance the compatibility between inorganic fillers and resin.
Sealing agents, adhesives, and coatings: Used as a tackifier to improve their adhesive strength, water resistance, weather resistance, and other properties.
matters needing attention
When using organosilane coupling agents, it is necessary to select the appropriate type and amount of coupling agent based on specific application requirements and product performance standards.
The amount of coupling agent is generally 0.5-2% of the amount of filler, and the specific amount needs to be adjusted according to product requirements, raw material properties, processing conditions, and other factors.
In summary, organosilane coupling agents play an important role in the preparation and performance improvement of composite materials. Their unique molecular structure and mechanism of action make them a bridge between inorganic and organic substances.
Yingchuang organic silane coupling agent is a polymer mixture composed of silane coupling agent and additives, commonly used in coatings, seals, adhesives, and other fields.
Yingchuang organic silane coupling agent has good adhesion, weather resistance, corrosion resistance, and oxidation resistance, which can improve the adhesion, durability, and corrosion resistance of materials. In addition, the Evonik organosilane coupling agent has low volatility and will not cause any environmental impact
The advantages of Yingchuang organosilane coupling agent include:
1. Good adhesion: Yingchuang organic silane coupling agent has good adhesion and can improve the adhesion of materials.
two Weather resistance: Yingchuang organic silane coupling agent has good weather resistance under different climatic conditions.
three Corrosion resistance: Yingchuang organic silane coupling agent has good corrosion resistance and can maintain stability in different types of corrosive media.
four Alkyl coupling agents have low volatility and do not cause environmental pollution.
In summary, Yingchuang organosilane coupling agent is a high-performance polymer mixture suitable for fields such as coatings, seals, adhesives, and composite materials.
