KH-171 (Vinyl Trimethoxysilane)
CAS: 2768-02-7
Category: Silane coupling agent
Origin: Made In China
Nanjing Chem Co.,Ltd is one of the leading and professional manufacturer and bulk supplier of silane coupling agent (Code: KH-171) in China. We hold valid national chemical production licenses and authoritative ISO9001 international quality certification.
Contact us
- No.420 Zhonghua Road,Qinghuai District, Nanjing,China 210001
- 008618005174481
- Mr.Sam
- sales@nanjingchem.com
Product Introduction
1. Product Introduction
KH-171, commonly known as Vinyl Trimethoxysilane (CAS No. 2768-02-7), is a high-purity vinyl-functional silane coupling agent widely used in industrial material modification. It is a colorless, transparent, low-viscosity oily liquid at room temperature, featuring unique dual reactive molecular structures: active vinyl functional groups and hydrolyzable methoxy groups. This stable molecular composition enables excellent interfacial bonding and crosslinking performance, laying a solid foundation for improving composite material comprehensive properties.
As a multi-purpose organosilicon crosslinking agent and adhesion promoter, KH-171 silane coupling agent serves as a critical bridge connecting inorganic substrates and organic polymers. It can form durable chemical bonds between glass fiber, silica powder, metal, ceramic and other inorganic fillers, as well as PE, PP, EVA, unsaturated polyester and other polyolefin materials. It effectively enhances interfacial adhesion, mechanical strength, waterproof performance, weather resistance and aging resistance of composite products. As a mainstream industrial silane product, KH-171 is widely applied in wire and cable crosslinking, plastic modification, functional coating manufacturing and new composite material industries across the globe.
2. Product Specifications
| Test Item | Standard Specification | Test Condition |
|---|---|---|
| Chemical Name | Vinyl Trimethoxysilane | – |
| CAS No. | 2768-02-7 | – |
| Appearance | Colorless transparent liquid | Visual Inspection |
| Purity | ≥98.0% | GC Test |
| Refractive Index (nD25) | 1.3920 ± 0.005 | 25℃ |
| Density (g/cm³) | 0.950–0.960 | 25℃ |
| Boiling Point | 123℃ | Normal Pressure |
| Flash Point | 22℃ | Closed Cup |
| Moisture Content | ≤0.2% | Karl Fischer Method |
3. Product Features & Applications
Core Product Features
- Dual reactive functional structure: Equipped with active vinyl groups and hydrolyzable methoxy groups, it achieves efficient chemical crosslinking and tight interfacial combination between inorganic fillers and organic resins, solving the compatibility problem of heterogeneous materials.
- Excellent modification performance: Greatly enhances tensile strength, impact resistance, water resistance, and weatherability of composite materials.
- Reliable water-crosslinking performance: Specially suitable for water-crosslinkable polyethylene cable and pipe systems, significantly improving thermal stability, aging resistance and long-term service performance of polymer materials under high-temperature and harsh working conditions.
- Good compatibility: Highly compatible with polyolefin, unsaturated polyester, EVA, and various polymer materials, wide formulation adaptability.
- Low dosage and high cost performance: Requires only a small addition amount to achieve obvious material performance improvement, with stable modification effect and low comprehensive cost, perfectly suitable for large-scale industrial continuous production.
Main Application Fields
- Wire & Cable Industry (Core Application): Acts as a professional crosslinking agent for water-crosslinkable PE power cables and communication cables. It effectively improves insulation stability, heat resistance, tensile strength and mechanical durability of cable insulation and sheath layers, ensuring long-term safe operation of cables.
- Polyolefin Plastic Modification: Widely used for modification of PE, PP, EVA and other polyolefin plastics. It optimizes the dispersion of inorganic fillers in plastic substrates, effectively improving product toughness, anti-aging performance and overall structural stability.
- Functional Coating Industry: Applied to silicone-acrylic exterior wall coatings, anti-corrosion coatings and polymer functional coatings. It enhances the bonding force between coating and base material, greatly improving the waterproof, anti-corrosion and weather-resistant performance of coating films.
- Composite Materials: Serves as coupling agent for glass fiber, silica powder, ceramic and inorganic fillers, improving interfacial bonding strength of reinforced plastics.
- Rubber & Adhesive Industry: Improves bonding performance between rubber, sealant and inorganic substrates, enhances product stability and service life.
4. Packaging, Storage & International Sea Shipping
Packaging Standard
Standard package: 200kg iron drum; Customized 25kg small drum packaging is available. All drums are sealed tightly with anti-leakage treatment, suitable for long-distance international transportation.
Storage Requirements
Store KH-171 silane coupling agent in a cool, dry, ventilated and shaded warehouse environment. Keep the product far away from high-temperature heat sources, open flames, strong oxidants and direct sunlight to avoid volatilization and deterioration. All packaging drums must be tightly sealed to prevent moisture absorption and hydrolysis failure. The valid shelf life is 12 months under standard storage conditions. For long-term stored products, shake evenly before use to ensure stable performance.
International Shipping & Hazard Classification
Hazardous Goods Confirmation: KH-171 Silane Coupling Agent is Class 3 Flammable Liquid
UN Number: UN 1993
Hazard Category: 3 (Flammable Liquids)
Packing Group: III
Shipping Notes: As Class 3 flammable liquid dangerous goods, KH-171 must avoid high-temperature exposure, sunlight irradiation and violent collision shaking during sea transportation. We strictly comply with IMDG international maritime dangerous goods regulations for standardized packaging and formal customs declaration. Our team provides complete and compliant export documents including MSDS, COA, dangerous goods certification and clearance documents to support smooth customs clearance for global clients.
5. Company Introduction & Production Strength
Founded in 2001, our company is a professional high-tech manufacturer and reliable global exporter of silane coupling agents, epoxy resins and fine chemical materials in China. We own a standardized modern chemical production base covering 100 acres, equipped with 5 full-automatic intelligent production lines for silane series products. With mature production technology and sufficient daily output, we can stably support small trial orders and large-batch container orders to meet diverse procurement needs of global customers.
We prioritize independent technological research and innovation, with professional R&D engineers and senior testing technicians accounting for more than 20% of the total staff. Our dedicated R&D team focuses on the core technology iteration of KH-171 vinyl silane coupling agent and all series of silane products, covering independent optimization of production processes, development of high-precision product testing methods, upgrading of high-purity product formulas, and full-process environmental protection treatment technology for industrial waste gas, wastewater and solid waste, ensuring product quality stability and environmental compliance.
Our factory has officially obtained ISO9001 international quality management system certification and national formal chemical production licenses, with complete production qualification and standardized quality control system. We implement strict raw material incoming inspection, in-process production monitoring and finished product batch testing to ensure every batch of KH-171 products features high purity, stable performance and consistent quality. With more than 20 years of export experience, our chemical products are exported to Southeast Asia, the Middle East, Europe, North America and other global markets, winning long-term trust and recognition from overseas buyers.
6. FAQ
Q1: What is Silane Coupling Agent KH-171?
A1: KH-171 (Vinyl Trimethoxysilane) is a high-efficiency vinyl-type silane coupling agent, one of the most widely used functional organosilicon chemicals in modern industry. It has dual reactive groups, which can chemically bond inorganic fillers and organic polymers tightly. It is mainly used as crosslinking agent, interfacial adhesion promoter and material modifier in wire & cable crosslinking, plastic modification, functional coating and composite material manufacturing industries, with excellent universal modification performance.
Q2: What specifications of KH-171 can you supply?
A2: We mainly supply premium industrial-grade KH-171 silane coupling agent with a purity of ≥98%, stable performance and low impurity content. Customized high-purity special grades are available according to customers’ special industrial application requirements. For every shipment, we can provide official and authoritative batch documents including COA (Certificate of Analysis), MSDS and complete test reports to support global customs clearance and product quality inspection.
Q3: What are your export trade advantages?
A3: To create a convenient and low-risk cooperation experience for global buyers, we provide flexible and buyer-centric export trade services with core advantages as follows:
- Multiple payment methods: Support T/T, L/C at sight and other negotiable payment terms.
- Free sample support: Provide free KH-171 samples, customers only bear courier freight.
- Accept trial order: Fully support small-batch trial orders for quality testing before bulk cooperation.
- Complete document support: Provide standard English MSDS, COA, factory qualification certificates and full set of export documents.
Q4: What is your company’s market positioning and qualification?
A4: We are one of the leading and professional manufacturers and bulk suppliers of silane coupling agents in China. We hold valid national chemical production licenses and authoritative ISO9001 international quality certification. Integrating independent R&D, standardized mass production and global export sales, we focus on providing high-quality, cost-effective and stable silane coupling agents and fine chemical raw materials for industrial buyers worldwide.
Q5: Is KH-171 dangerous goods for sea shipment?
A5: Yes. KH-171 vinyl trimethoxysilane is classified as Class 3 flammable liquid dangerous goods, with UN number 1993 and Packing Group III. We have professional dangerous goods production, packaging and export qualification, with a mature dangerous goods logistics and declaration team to ensure 100% safe, compliant and smooth international sea transportation.
