Overview
Coupling agents are specialized chemicals designed to improve the adhesion between dissimilar materials, such as organic polymers and inorganic fillers. They are widely used in industries that rely on composite materials, including plastics, rubber, coatings, and adhesives. By forming chemical bonds between different phases, coupling agents enhance the mechanical properties and durability of the final product. There are several types of coupling agents, including silanes, titanates, and zirconates, each suited for specific applications. The choice of coupling agent depends on the materials being bonded and the desired performance characteristics. These agents are often applied as coatings or additives during the manufacturing process.
Physical and Chemical Properties
Coupling agents exhibit a range of physical and chemical properties depending on their type and formulation. Silane coupling agents, for example, are typically colorless liquids with a slight odor, while titanates may appear as viscous liquids or powders. The molecular weight and solubility of these agents vary, influencing their compatibility with different solvents and base materials. Key chemical properties include their ability to form stable bonds with both organic and inorganic surfaces. This dual functionality is what makes coupling agents effective in composite materials. They often react with hydroxyl groups on inorganic surfaces and form covalent bonds with organic polymers, creating a strong interfacial layer.
Main Applications
Coupling agents are indispensable in industries that require strong adhesion between dissimilar materials. In the plastics industry, they are used to improve the bonding between polymers and fillers like glass fibers or minerals. This enhances the mechanical strength and thermal stability of the final product. In the rubber industry, coupling agents improve the dispersion of fillers like silica, leading to better wear resistance and elasticity. They are also used in coatings and adhesives to enhance durability and adhesion to substrates. Additionally, coupling agents play a critical role in the production of advanced composite materials for aerospace and automotive applications.
Safety and Storage
Handling coupling agents requires adherence to safety protocols to prevent exposure and ensure stability. Most coupling agents are sensitive to moisture and should be stored in tightly sealed containers in a cool, dry environment. Exposure to humidity can lead to hydrolysis, reducing their effectiveness. Personal protective equipment (PPE), such as gloves and goggles, should be worn when handling these chemicals. Adequate ventilation is also essential to avoid inhalation of fumes. In case of skin contact, rinse immediately with water and seek medical advice if irritation persists. Always refer to the material safety data sheet (MSDS) for specific handling instructions.
B2B Procurement Guide
When procuring coupling agents for industrial use, it is crucial to consider factors such as compatibility, purity, and intended application. Buyers should verify the chemical composition and ensure it aligns with the materials being bonded. Requesting samples for testing is a common practice to assess performance before bulk purchase. Price ranges vary depending on the type and quantity, with silane coupling agents typically costing between $10 and $50 per kilogram. Bulk purchases may offer cost savings, but storage conditions must be optimized to maintain product integrity. Reliable suppliers should provide detailed technical specifications and safety data sheets.
Related Manufacturers
- 主营：白矿油、10号白油、15号白油、26号白油、32号白油、石蜡基油、橡胶油、环烷油、黄油、超细白炭黑、白炭黑、促进剂、环保颗粒助剂、防老剂、增塑剂、氧化锌、硬脂酸、3L标胶、高苯橡胶、丁二烯橡胶、消光粉、超细二氧化硅、天然橡胶
- 主营：橡胶促进剂、橡胶硫化剂、橡胶防老剂、防吐霜剂、防吐白剂、防粘剂、隔离剂、耐磨剂、止滑剂
- 主营：蓖麻油酸、吡啶硫酮铜、6-萘三磺酸钠、硫酸烟酰苯胺、茶皂素、γ-异辛氧基丙胺、N'-羰基二咪唑、10-蒽醌
- 主营：硅烷偶联剂KH560、化工中间体、食品添加剂、化工原料
- 主营：信越增粘剂、水性油性硅烷、道康宁6040硅烷、水性偶联剂、环氧基偶联剂、信越403偶联剂、氨基偶联剂、迈图a187偶联剂、偶联剂、水性硅烷偶联剂、油性硅烷偶联剂、水性光油、uv流平剂、增粘剂
- 主营：碘甲苯、阻燃剂、碘丙烷、钛酸酯偶联剂、碘丁烷、溴苯胺、碘癸烷、苯乙酮、碘苯胺、碘乙烷、苯甲酸、溴苯酚、苯甲腈、3.4-二氟、2-丙二醇、cas627-30-5、cas766-85-8、1-碘辛烷、1-碘己烷、cas107-05-1、cas585-79-5、cas150-19-6、ab黑白料、cas831-82-3、苯甲酰胺、聚碳酸酯
- 主营：苯酚、二甲基亚砜、己二酸、乙二醇、冰乙酸、环己酮、氯化亚砜、四氢呋喃、三乙醇胺、甲基叔丁基醚、醋酸乙酯、二甲苯、异戊醇、环己烷、苯乙烯、正丁醇
- 主营：固化剂、环氧地坪、防腐涂料、硅烷偶联剂、密封材料、低分子环氧树脂
- 主营：偶联剂、油漆涂料、生产用助催化剂
- 主营：粘接剂、有机硅烷、偶联补强剂、偶联剂、表面处理剂、橡胶硅质填料
- 主营：硅烷偶联剂厂家、石油化工
- 主营：偶联剂
- 主营：憎水剂、模具胶、硅脂、偶联剂、防水剂、消泡剂、润滑脂、甲基硅油、二甲基硅油、柔软剂、含氢硅油、硅橡胶、295硅脂、制线硅油、羟基硅油、工业硅脂、定制硅脂、透明模具、桥梁硅脂、硅油、107硅橡胶
- 主营：石蜡油、氯化石蜡、乙酰乙酸甲酯、硅烷偶联剂、十二烷基苯磺酸、香精、柔顺剂、表面活性剂
- 主营：偶联剂
- 主营：甲醇、乙醇、PVP、偶联剂、航空煤油、界面剂、溶剂油、苯甲醇、偶氮二异丁腈、环丁砜、二甲基亚砜、辛醇、丙烯酸
- 主营：120号溶剂油、150号溶剂油、200号溶剂油、硅烷偶联剂、260号溶剂油、白油、D40溶剂油、D60溶剂油、D80溶剂油、D130溶剂油、磺化煤油、丙二醇、对甲苯磺酰氯、莫卡、聚乙二醇、二茂铁、石蜡、乙二醇、铝粉膏、抗氧剂T501、甲基丙烯酸缩水甘油酯、甲基叔丁基醚、乙二醇丁醚、甲缩醛、石脑油、正十四烷
- 主营：润滑油、氯化铵、磷酸二氢钾、硅烷偶联剂、白油、减水剂、氯化钾、乙二醇、柠檬酸、辛醇
- 主营：磷酸三甲苯酯、氨基甲酸乙酯、磷酸甲苯二苯酯、硅烷偶联剂、甲乙酮肟、四乙基溴化铵、碳酸二丁酯、环烷酸铅、亚硫酸铵、二苯甲酮腙、石油磺酸钠、三乙醇胺、甲醇、乙醇、二甲苯、二氯甲烷、环烷酸铜、氨基甲酸甲酯、单过硫酸氢钾、氯化石蜡、三异丙醇胺、苄基三甲基氯化铵、苄基三乙基氯化铵、四乙基氯化铵、四甲基氯化铵、新癸酸铋
- 主营：酒石酸、苯甲酸、苯丙乳液、工业硅烷偶联剂、背胶乳液、酸度调节剂、高效胶粘剂、玻璃幕墙清洗剂、卡松防腐剂、升华水杨酸、松香酸钠、消泡剂、苯甲酸钠、松香
- 主营：四氢噻吩、乙硫醇、二甲基亚砜、二甲基二硫、正辛硫醇、百里香酚、氟化铯、乙硫氨酯、四水合乙酸钴、二异丁基酮、乳酸乙酯、正己烷、2-甲基吡啶、环氧氯丙烷、对氯间甲酚、亚磷酸三苯酯、环丁砜、甲基丙烯酸甲酯、二乙烯基苯、四氯化锆、二氧六环、氯化锂、硫酸锂