Detailed Product Introduction of CAB-35 Cocamidopropyl Betaine


1. Product Overview

CAB-35 (Cocamidopropyl Betaine) is an amphoteric surfactant derived from natural fatty acid coconut oil. It is widely used in personal care, household cleaning, industrial cleaning and other fields due to its mildness, versatility and environmental protection. As an excellent representative of surfactants, CAB-35 has a unique zwitterionic structure, which can change its behavior characteristics under different pH conditions, thereby realizing the functions of cationic, nonionic or anionic surfactants.


2. Chemical composition and structural characteristics

  1. Chemical name: Cocamidopropyl betaine
  2. Molecular formula: C19H38N2O3
  3. CAS number: 61789-40-0
  4. Molecular structure: The molecule of CAB-35 is composed of cocamide group (hydrophobic part) and betaine group (hydrophilic part), forming a unique zwitterionic surfactant structure.

Structurally, CAB-35 contains:

  • Cocamide part: hydrophobic chain, providing good foaming and cleaning performance.
  • Betaine group: hydrophilic chain, enhancing compatibility and stability with water.

3. Product performance

CAB-35 exhibits the following performance characteristics due to its chemical structure:

  1. Mildness
    CAB-35 has extremely low irritation to skin and eyes, making it very suitable for personal care products for babies and sensitive skin.
  2. Excellent foam performance
    CAB-35 can provide fine, stable and rich foam in both hard and soft water.
  3. Antistatic performance
    In hair care products, CAB-35 can effectively reduce hair static electricity and enhance combing smoothness.
  4. Thickening and compatibility
    CAB-35 is compatible with anionic, nonionic and cationic surfactants and is used to enhance the thickening effect and solubility of the system.
  5. Biodegradability
    CAB-35 can be quickly decomposed by microorganisms and is an environmentally friendly surfactant.
  6. Lubricating properties
    In industrial applications, CAB-35 can provide lubrication and protection effects, such as reducing fiber wear in textile auxiliaries.

4. Technical indicators

The following are typical technical indicators of CAB-35:

  • Appearance: Light yellow transparent liquid
  • Active matter content: 35% ± 2%
  • pH value (10% solution, 25°C): 6.0~8.0
  • Solubility: Completely soluble in water
  • Foaming performance: Excellent foaming ability and foam stability
  • Toxicity: Low toxicity to skin and environment

5. Production process

5.1 Raw material preparation
  • Coconut acid: Fatty acid extracted from coconut oil, as the main source of hydrophobic groups.
  • Dimethylamine: Provides amine groups for reaction with coconut acid to form amides.
  • Chloropropionyl betaine: Provides betaine groups, combined with cocamide to form the final product.
5.2 Main production steps
  1. Amidation reaction
  • Coconut acid reacts with dimethylamine to form cocamide.
  • Reaction temperature: 150~180°C; reaction pressure: normal pressure or slightly below normal pressure.
  1. Amination reaction
  • Cocoamide reacts with chloropropionyl betaine to form cocamide propyl betaine.
  • Add a small amount of catalyst (such as sodium hydroxide) to control the pH value between 7 and 8.
  1. Neutralization and filtration
  • Adjust the solution to neutrality through acid-base neutralization.
  • Filter to remove impurities and ensure product purity.
  1. Dilution and packaging
  • Dilute the product to the required concentration (generally 35% active content).
  • Finally, package and store.

6. Application fields

  1. Personal care products
  • Shampoo, conditioner, shower gel: CAB-35 provides foam stability, mildness and hair care performance.
  • Facial cleanser: Non-irritating to the skin, mild cleaning power, suitable for sensitive skin.
  1. Household cleaner
  • Dishwashing liquid: CAB-35 has rich and stable foam and excellent decontamination performance.
  • Laundry detergent: Enhances grease removal ability while protecting fabric fibers.
  1. Industrial field
  • Industrial cleaner: CAB-35 can be used for oil cleaning and is suitable for metal surface cleaning.
  • Textile auxiliaries: As an antistatic agent and lubricant, it protects textile fibers.
  1. Agriculture and specialty chemicals
  • Pesticide adjuvant: Used as a dispersant to improve the uniformity of drug distribution.
  • Construction adjuvant: As a concrete additive, it improves wettability.

7. Environmentally friendly features

  • Green raw materials: Derived from vegetable oil (coconut oil).
  • Fast degradation: Decomposes quickly in the natural environment and is friendly to the ecosystem.
  • Compliance with regulations: Complies with international environmental and safety regulations for cosmetic raw materials.

8. Market prospects

  1. Demand growth
  • CAB-35 has become an indispensable ingredient in cleaning and care products due to its mildness and versatility.
  1. Environmental trends
  • The increasing demand of consumers for green and environmentally friendly products will further promote the market growth of CAB-35.
  1. Multi-field expansion
  • The application scope of CAB-35 is expanding from the traditional daily chemical field to industry and agriculture.

9. Product safety

  1. Low toxicity
  • Experimental data show that CAB-35 has extremely low acute toxicity to the human body.
  1. Precautions for use
  • Avoid direct contact with concentrated liquid.
  • Store in a cool and dry place to prevent high temperature decomposition.

10. Summary

CAB-35 Cocamidopropyl Betaine plays an important role in the field of surfactants with its mild, environmentally friendly and multifunctional characteristics. Its wide application not only covers daily chemicals, but also extends to the industrial and agricultural fields, fully reflecting its high value and market potential. At the same time, with the continuous development of green chemistry, CAB-35 will continue to be one of the core raw materials of the sustainable development industry.

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