Polyquaternium-28

Product Details

CasNo： 131954-48-8

MF： (C6H9NO)n.(C10H21N2O)n.nCl

Appearance： liquid

Delivery Time： 15 days

Packing： 200kg/drum

Purity： 99%

1. Basic Information

• Chinese Name: 聚季铵盐 - 28
• English Name: Polyquaternium-28
• CAS Number: 131954-48-8
• Chemical Composition: Copolymer of N,N,N-trimethyl-3-[(2-methyl-1-oxo-2-propen-1-yl)amino]-1-propanaminium chloride and 1-vinyl-2-pyrrolidone
• Molecular Formula: (C10​H21​ClN2​O⋅C6​H9​NO)n​ (repeating unit structure; n = degree of polymerization; molar ratio of quaternary monomer to PVP typically ranges from 40:60 to 60:40)
• Average Molecular Weight: Typical range of 200,000–800,000 Da (optimized for hair film-forming: low molecular weight for flexibility, high molecular weight for strong hold)
• Common Synonyms: PVP/MAE quat copolymer; Polyquaternium-28 (per INCI nomenclature for cosmetics)

2. Physical and Chemical Properties

3. Key Performance Characteristics

1. Superior Film-Forming & Styling Retention:
   Forms a transparent, flexible film on hair surfaces—unlike rigid polymers (e.g., PVA), it balances strong hold (8+ hours of curl retention in 80% humidity) with natural hair movement, avoiding brittleness or flaking. The film is water-resistant but reworkable (can be restyled with minimal effort), meeting consumer demand for "long-lasting yet flexible" styling.
2. Mild Conditioning & Detangling:
   Cationic quaternary segments adsorb gently on hair cuticles, filling gaps in damaged hair and reducing friction between strands. Consumer tests show a 40% improvement in wet combability and a 25% reduction in hair breakage compared to formulations without Polyquaternium-28. It is non-irritating (human patch test rating: "non-sensitizing") and safe for colored or chemically treated hair.
3. Excellent Compatibility & Formulation Versatility:
   Compatible with anionic (e.g., SLES), non-ionic (e.g., polysorbate 20), and amphoteric (e.g., CAPB) surfactants, as well as common cosmetic additives (e.g., UV filters, plant extracts, preservatives). It does not cause precipitation or phase separation, and enhances the stability of emulsions by reducing particle aggregation.
4. Non-Cumulative Residue:
   The film dissolves easily with standard shampoos, leaving no sticky or waxy residue on hair—avoiding the "build-up" issue common with traditional cationic polymers (e.g., Polyquaternium-10), ensuring hair remains light and clean after repeated use.

4. Application Fields

1. Hair Styling Products (Core Scenario)

• Hair Gels/Serums: Provides strong yet flexible hold for curly, straight, or textured styles; enhances hair shine without stickiness.
• Hair Mousses/sprays: Improves spray mist uniformity and styling longevity; the alcohol-soluble property makes it suitable for alcohol-based hair sprays (common in quick-drying formulations).
• Hair Wax/Clay: Adds texture and volume to hair; the film-forming property ensures style retention without weighing hair down.
• Perm/Straightening Products: Acts as a protective film during chemical treatments, reducing hair damage from perming/straightening agents.

2. Hair Care Products

• Leave-In Conditioners: Enhances detangling and anti-frizz effects; suitable for dry, damaged, or colored hair.
• Shampoos (Mild Formulations): Reduces scalp irritation from surfactants; leaves a light conditioning layer on hair after rinsing.

3. Other Personal Care Products

• Shaving Creams/Gels: Improves foam stability and skin lubrication; reduces razor burn by forming a protective film on skin.
• Deodorants/Antiperspirants: Enhances the adhesion of active ingredients (e.g., aluminum chlorohydrate) to skin; reduces product transfer onto clothing.

5. Usage & Safety Guidelines

• Recommended Dosage:
  • Hair styling products (gels, mousses): 1.0%–6.0% (10% solid grade) or 0.5%–2.0% (30% solid grade)
  • Hair care products (leave-in conditioners): 0.5%–2.0% (10% solid grade)
  • Shaving/deodorant products: 0.3%–1.0% (10% solid grade)
• Safety Compliance:
  • Certified by global regulatory bodies: FDA (listed in 21 CFR), EU CosIng (approved for cosmetic use), China NMPA (compliant with Cosmetic Safety Technical Specification).
  • Low toxicity (oral LD₅₀ > 5,000 mg/kg in rats); non-irritating to skin, eyes, and scalp (tested per OECD 404/405 standards).
• Usage Notes:
  • For water-based formulations: Add at 20–40°C (avoid high temperatures >60°C to prevent viscosity changes).
  • For alcohol-based formulations: Pre-dissolve in ethanol (1:5 ratio) before blending into the main formula.

6. Packaging & Storage

1. Packaging Forms

• Industrial/Cosmetic Grade:
  • 60L HDPE plastic drums (10% solid grade) or 150L HDPE plastic drums (30% solid grade)—sealed with screw caps and inner liners to prevent leakage.
• Sample Sizes:
  • 1L/5L HDPE bottles (10% solid grade) or 500mL/2L amber HDPE bottles (30% solid grade)—for R&D or small-batch trials.

2. Storage Conditions

• Store in a cool, dry, well-ventilated area (temperature: 5–35°C, relative humidity: <75%); avoid direct sunlight and high temperatures (>40°C) to prevent viscosity increase or color deepening.
• Do not stack drums higher than 2 layers to avoid drum deformation and leakage.
• Shelf Life: Unopened containers—18 months (10% solid grade) or 24 months (30% solid grade); use within 3 months after opening and reseal promptly to prevent contamination.