Butylated Urea Formaldehyde Resin

• 

Butylated Urea-Formaldehyde Resin(BUF) is a modified product of urea-formaldehyde resin (synthesized by the polycondensation of urea and formaldehyde) throughbutanol etherification. By reacting butanol with the hydroxymethyl groups (-CH2OH) in urea-formaldehyde resin, butoxy-substituted derivatives are formed, enhancing its properties:

1. Solubility: Improved solubility in organic solvents (e.g., xylene, alcohols), making it suitable for solvent-based coating systems.
2. Stability: Reduced tendency for hydroxymethyl self-condensation, enhancing storage stability.
3. Flexibility: Lower brittleness, improving impact resistance of coatings or adhesive layers.
4. Compatibility: Better miscibility with other resins (e.g., alkyd resins, epoxy resins).

Key Applications

1. Coatings Industry
   • Cross-linking Agent: As a type of amino resin, it is combined with alkyd resins, acrylic resins, etc., in high-temperature curing coatings (e.g., automotive topcoats, coil coatings, industrial baking paints) to provide high gloss, hardness, and chemical resistance.
   • Wood Coatings: Used in furniture and floor paints to enhance surface wear and scratch resistance.
2. Adhesives
   • Wood Bonding: Applied in particleboard and plywood production, offering improved water resistance compared to conventional urea-formaldehyde resins.
   • Laminated Materials: Provides strong adhesion in composites with paper or fabrics.
3. Composite Materials
   • Molding Compounds: Serves as a matrix resin for electrical components and automotive parts, enhancing heat resistance and dimensional stability.
4. Other Fields
   • Inks: Used as a binder to improve weather resistance and adhesion of printed materials.
   • Textile Auxiliaries: Acts as a fabric finishing agent to enhance wrinkle resistance and hand feel.

Advantages and Limitations

• Advantages: Low cost, fast curing, high hardness, and solvent resistance.
• Limitations: May release trace formaldehyde; less environmentally friendly compared to water-based or formaldehyde-free resins (e.g., polyurethane, acrylic).

  Fundamental Chemical Properties

  Property	Specification
  Chemical Name	Butylated Urea Formaldehyde Resin
  CAS Number	[Not specified]
  Molecular Structure	Modified UF resin with butanol etherification
  Appearance	Colorless to pale yellow viscous liquid
  Solid Content	50-60%
  Viscosity (25°C)	200-800 mPa·s
  pH Value	7.5-9.0
  Solubility	Water-miscible

  Key Performance Characteristics

  Parameter	Test Method	Typical Value
  Cure Temperature	DSC	100-130°C
  Gel Time (120°C)	ISO 8985	90-180 sec
  Flexural Strength	ASTM D790	80-110 MPa
  Water Resistance	24h immersion	≤2% weight gain
  Storage Stability	25°C/6 months	≤10% viscosity change

  Application Guidelines

  Application	Technical Parameters
  Wood Adhesives	Press time: 60-90 sec at 110°C
  Coatings	10-15% resin solids content
  Paper Impregnation	40-50% pickup rate
  Curing System	Acid catalyst required (pH 3-5)
  Pot Life	4-8 hours (after catalyst addition)

  Key Features:

  Enhanced water resistancevs conventional UF resins

  Lower formaldehyde emission(<0.1 ppm by chamber test)

  Improved flexibilitywith butoxylation modification

  Excellent adhesionto cellulose materials

  Thermosettingwith irreversible cure

Другие товары поставщика

	4-ADPA 4-Aminodiphenylamine CAS 101-54-2	101-54-2 –Names and Identifiers Name 4-Amino diphenylamine Synonyms azosaltrAzosalt RC.I. 76085C.I. 37240blackbasepLuxan Black ...
	4,4′-Diaminodiphenylsulfone CAS 80-08-0	CAS:80-08-0, 80-08-0 – Names and Identifiers Name 4-Aminophenyl sulfone Synonyms DDSEPORALDapsone4,4′-DDSDISULONENOVOPHO...
	Methylated Melamine Resin	Introduction This category of products mainly consists of methanol and hydroxymethyl melamine reacting in different molar ratios to form highly me...
	MMA Two-Component Acrylate Adhesive	Introduction 2K-MMA two-component acrylic adhesive is a structural adhesive with fast curing speed, high bonding strength, good toughness, and goo...
	CAS 54914-85-1 EGTE 1,2-Bis(3-methylphenoxy)ethane	Introduction CAS:54914-85-1, 54914-85-1 – Names and Identifiers Name 1,2-Bis-(3-methyl-phenoxy)ethane Synonyms F-203(EGTE)1,2...

Похожие товары

	Metallic flat high gloss MT-049/98010	Продавец: Standard International Group (HK) Limited	Getaquote whats/app：+86 132 6275 2056 WEB: std-coatings.com Introduction No. MT-049/98010 Co...
	Pure epoxy powder coating	Продавец: Standard International Group (HK) Limited	Getaquote whats/app：+86 132 6275 2056 WEB: std-coatings.com Product model CH Product characterist...
	Epoxy polyester powder coating	Продавец: Standard International Group (HK) Limited	Getaquote whats/app：+86 132 6275 2056 WEB: std-coatings.com Product model GA, SF, FX, etc. Produc...
	Pure polyester weather-resistant powder coating Factory Supplier	Продавец: Standard International Group (HK) Limited	Getaquote whats/app：+86 132 6275 2056 WEB: std-coatings.com Product model OWP Product characteris...
	Metallic flat semi-gloss Powder Coating MT-049/97003	Продавец: Standard International Group (HK) Limited	Getaquote whats/app：+86 132 6275 2056 WEB: std-coatings.com Introduction No. MT-049/97003 Co...