NC thinner is a solvent mixture used to dilute nitrocellulose (NC). Below is a detailed introduction to it:
Components
• Esters: Such as ethyl acetate and butyl acetate, which effectively dissolve NC, providing good solubility and volatility, allowing NC to dry quickly during the film-forming process.
• Ketones: Like acetone and butanone, which have strong solubility for NC, can adjust the dissolving capability and evaporation rate of the thinner, helping NC to form a uniform film.
• Alcohols: Commonly used are ethanol and isopropanol, which can be mutually soluble with other solvents, adjusting the polarity and evaporation rate of the thinner, improving the performance of NC coatings.
• Aromatic hydrocarbons: Such as toluene and xylene, which can enhance the solubility of NC, improve the dilution effect, and reduce costs, but have certain toxicity, so ventilation should be ensured during use.
Functions and Features
• Viscosity adjustment: The viscosity of NC can be adjusted to an appropriate range as needed, facilitating application methods like coating and spraying, ensuring an even coating.
• Drying speed control: By selecting solvents with different evaporation rates, the drying time of NC can be controlled, avoiding defects in the coating caused by drying too quickly or too slowly.
• Improved leveling: It allows NC to level better after application, forming a smooth and flat surface, enhancing the appearance quality and gloss of the coating.
• Enhanced solubility: It ensures that NC is fully dissolved, maintaining the stability of the solution and preventing issues like precipitation and clumping, which is beneficial for subsequent processing.
Applications
• Coatings industry: Used for diluting nitro lacquer, enabling nitro lacquer to have good application performance and drying properties, resulting in a film with excellent gloss and hardness.
• Ink industry: As a thinner for nitro ink, it adjusts the viscosity and drying speed of the ink, allowing better transfer and adhesion during the printing process.
• Adhesives industry: In some adhesives based on NC, NC thinner can adjust the viscosity and drying time of the adhesive, improving bonding performance.
