Butylated Urea Formaldehyde Resin

1. Chemical Composition & PropertiesTable 1: Basic Chemical CharacteristicsParameterSpecif

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1. Chemical Composition & Properties

Table 1: Basic Chemical Characteristics

Parameter	Specification
Chemical Formula	Modified (C₈H₁₆N₂O₃)n
Appearance	Pale yellow viscous liquid
Solid Content	50-65%
Viscosity (25°C)	200-2000 cP
pH Value	7.5-9.0
Density (g/cm³)	1.18-1.25
Shelf Life	6-12 months

2. Manufacturing Process

Table 2: Production Parameters

Stage	Conditions	Key Parameters
Methylolation	80-90°C, pH 7-9	Urea:Formaldehyde (1:1.5-2.0)
Butylation	90-100°C, pH 4-6	Butanol:Urea (0.5-1.5:1)
Condensation	85-95°C, pH 4-5	Reaction time 2-3 hrs
Stabilization	40-50°C	pH adjustment to 7.5-9.0

3. Performance Comparison

Table 3: Property Comparison with Related Resins

Property	BUF Resin	UF Resin	MF Resin
Water Resistance	Excellent	Good	Excellent
Flexibility	High	Low	Medium
Curing Temp (°C)	100-150	120-160	130-170
Formaldehyde Emission	Low	High	Medium
Cost Factor	Medium	Low	High
Adhesion Strength	3.5-4.5 MPa	2.5-3.5 MPa	4.0-5.0 MPa

4. Key Application Areas

Wood Composites: Particleboard, MDF, plywood adhesives

Coatings: Industrial finishes, paper coatings

Textiles: Wrinkle-resistant treatments

Molding Compounds: Electrical components

5. Technical Advantages

30-40% lower formaldehyde emission vs standard UF

20-30% better water resistance

Enhanced storage stability

Broader formulation flexibility

Improved compatibility with other polymers

6. Safety & Handling

Aspect	Requirement
Storage Temp	5-30°C
Flash Point	>100°C
PPE Requirements	Gloves, goggles, ventilation
Disposal	Neutralization required
Regulatory Status	Complies with EPA, REACH

7. Typical Formulation Guidelines

Component	Weight %
BUF Resin	50-70
Fillers	10-25
Catalysts	0.5-2
Modifiers	2-5
Water	Balance

8. Market Considerations

Preferred for interior wood products requiring Class E1 emission standards

Growing demand in Asia-Pacific construction sector

Increasing replacement of conventional UF in furniture manufacturing

Technical alternative to more expensive MF resins

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