Cashew Nut Shell Liquid (CNSL) is a unique natural resin extracted from the shells of cashew nuts through cold pressing or solvent extraction. The crude CNSL predominantly contains 70% Anacardic acid, 18% Cardol, 5% Cardanol, along with other phenols and polar compounds. Technical CNSL (TCNSL) is derived by heating crude CNSL causing decarboxylation of Anacardic acid, which results in increased Cardanol content (about 52%) along with Cardol, polymeric materials, and other chemical components. CNSL oil is renowned for its excellent polymerization properties and chemical modifiability, making it ideal for producing high-performance polymers. It exhibits superior characteristics such as flexibility, corrosion resistance, mechanical durability, and rapid heat dissipation which are crucial in automotive friction materials like brake linings. Moreover, CNSL oil serves as a highly effective binder or liquid resin, and it possesses intrinsic insecticidal and antibacterial properties. Also, this oil demonstrates remarkable resistance to alkaline and acidic environments, as well as high tolerance to mineral oils and fats, enhancing its industrial applicability. With its versatility and functional benefits, Cashew Nut Shell Liquid Oil is widely utilized in industries such as automotive, coatings, adhesives, and antimicrobial formulations.
Key Features
| Features | Description |
|---|---|
| Extraction Method | Cold pressing or solvent extraction from cashew nut shells |
| Crude CNSL Composition | Approximately 70% Anacardic acid, 18% Cardol, 5% Cardanol, rest phenols and polar compounds |
| Technical CNSL Composition | Around 52% Cardanol, 10% Cardol, 30% Polymeric material, and other chemicals |
| Polymerization Ability | Highly versatile for polymerization and chemical modification |
| Performance in Polymers | Enables development of high-performance, flexible polymers with corrosion resistance |
| Friction Material Use | Excellent binder and friction dust material for brake lining manufacture |
| Insecticidal & Antibacterial | Possesses natural insecticidal and antibacterial properties |
| Chemical Resistance | High resistance to alkalis, acids, mineral oils, and fats |
| Heat Dissipation | Faster thermal dissipation beneficial in automotive friction applications |
| Attributes | Description |
|---|---|
| Physical Form | Viscous dark brown liquid |
| Source | Cashew nut shells |
| Processing Type | Raw crude CNSL or Technical CNSL (heated) |
| Anacardic Acid Content (Crude) | Approx. 70% |
| Cardanol Content (Technical) | Approx. 52% |
| Cardol Content | Approx. 10-18% depending on type |
| Polymeric Material Content (Technical CNSL) | Approx. 30% |
| Solubility | Soluble in organic solvents, insoluble in water |
| Color | Dark brown |
| Applications | Automotive brake linings, high-performance polymers, insecticides, coatings, adhesives |
*Disclaimer: The above description has been AI-generated and has not been audited or verified for accuracy. It is recommended to verify product details independently before making any purchasing decisions.
Crude CNSL is obtained directly by cold pressing or solvent extraction and contains about 70% anacardic acid, while technical CNSL is produced by heating crude CNSL which converts anacardic acid into cardanol, increasing cardanol content to around 52% and adding polymeric materials.
CNSL acts as an excellent binder and friction material additive that enhances heat dissipation, corrosion resistance, mechanical durability, and reduces friction dust, improving the overall performance of brake linings.
Yes, CNSL exhibits natural insecticidal and antibacterial properties making it useful for non-toxic insecticide formulations.
CNSL oil is highly resistant to alkaline and acidic substances as well as mineral oils and fats, making it ideal for use in harsh chemical environments.
CNSL is insoluble in water but readily soluble in various organic solvents used in industrial processes.
CNSL (CASHEW NUT SHELL LIQUID)
INTRODUCTION:
The Crude/Raw CNSL (English: Cashew Nut Shell Liquid) is obtained by cold pressing or solvent extraction from Cashew Nut Shells. It comprises about 70% Anacardic acid, 18% Cardol, Cardanol 5%, and the remainder is composed of other compounds from the group of phenols, and polar compounds.
Technical CNSL (TCNSL) is obtained by further processing of the crude CNSL in the heating process, leading to Decarboxylation Anacardic acid, thus yielding a Cardanol. Technical CNSL contains about 52% Cardanol, Cardol 10%, 30% Polymeric material and the Residue is composed of other chemical compounds.
Features:
The versatility of the polymerization and chemical modification
The possibility of developing a high-performance polymers
Improved properties of synthetic phenols include flexibility, dizałanie corrosion, resistance to mechanical damage, faster heat dissipation when used as friction material in the automotive industry.
Excellent performance as a binder (liquid resin) and friction material (Friction Dust) for the manufacture of brake linings
Very good insecticidal and anti-bacterial
Very high resistance to alkaline and acidic substances
Very good resistance to mineral oils and fats
