AMINO RESIN
We are a manufacturer based in China. We specialize in providing high-quality AMINO RESIN for industrial clients across various sectors. Whether you need chemicals consultation or technical support, our team is here to help.
Category：Paint chemicals Own Brand：MT /MOQ:100KG /From China/ B2B only.
Introduction
Amino resin, also known as melamine resin, has excellent physical and chemical attributes. It works well in conjunction with acrylic resin, alkyd resin, polyester resin or epoxy resin to make good baking varnish. It is widely used as a primer for automotive, bicycles, computer shells, electrical appliances, lumps and metals. Our amino resins can be classified into different types, such as butylated urea formaldehyde resin, n-butyl etherified amino resin, and isobutylated amino resin.
Amino Resins: Properties and Industrial Applications
Table 1: Major Types of Amino Resins
| Resin Type | Chemical Base | Curing Mechanism | Key Characteristics |
|---|---|---|---|
| Urea-Formaldehyde (UF) | Urea + Formaldehyde | Acid catalyst, heat cure | Low cost, fast curing |
| Melamine-Formaldehyde (MF) | Melamine + Formaldehyde | Heat/acid cure | Superior water resistance |
| Melamine-Urea-Formaldehyde (MUF) | Hybrid composition | Heat cure | Balanced cost/performance |
| Benzoguanamine-Formaldehyde | Benzoguanamine derivative | Heat cure | Excellent alkali resistance |
| Glyoxal-based | Glyoxal + Urea | Room temperature cure | Formaldehyde-free alternative |
Table 2: Technical Properties Comparison
| Property | UF Resin | MF Resin | MUF Resin |
|---|---|---|---|
| Cure Temperature (°C) | 100-130 | 120-150 | 110-140 |
| pH Range | 3.5-5.5 | 4.0-6.0 | 4.0-5.5 |
| Water Resistance | Fair | Excellent | Good |
| Weather Resistance | Poor | Good | Moderate |
| Formaldehyde Emission | High | Medium | Medium-Low |
| Cost Index | 1.0 | 2.5-3.0 | 1.8-2.2 |
Table 3: Industrial Applications
| Application Area | Preferred Resin Type | Function | Typical Loading |
|---|---|---|---|
| Wood Adhesives | UF/MUF | Particleboard bonding | 8-12% |
| Coatings | MF | Crosslinker for alkyds | 15-25% |
| Paper Treatment | MF/UF | Wet strength agent | 0.5-2% |
| Textile Finishing | MF | Wrinkle resistance | 3-8% |
| Molding Compounds | MF | Electrical components | 30-50% |
Table 4: Formulation Guidelines
| Component | UF Resin | MF Resin | Notes |
|---|---|---|---|
| Resin Content | 50-65% | 55-70% | Aqueous solution |
| Catalyst (NH₄Cl) | 0.5-2% | 0.3-1.5% | Adjust for cure speed |
| Modifiers | 1-5% | 3-8% | Plasticizers, stabilizers |
| Filler Content | 10-30% | 5-20% | Wheat flour, wood powder |
| Viscosity (cP) | 200-500 | 300-800 | Adjust for application |
Table 5: Environmental & Safety Data
| Parameter | UF Resin | MF Resin | Regulatory Status |
|---|---|---|---|
| Formaldehyde Emission | High (E1 class) | Medium (E0 class) | CARB/EPA regulated |
| VOC Content | 3-8% | 5-10% | Subject to local limits |
| Worker Exposure Limit | 0.3 ppm (formaldehyde) | 0.3 ppm | OSHA requirements |
| Storage Stability | 3-6 months | 6-12 months | Temperature sensitive |
| Disposal Consideration | Neutralize before disposal | Neutralize before disposal | pH adjustment needed |
Amino resins remain essential thermosetting polymers, with UF resins dominating cost-sensitive applications and MF resins preferred where superior performance is required. Recent developments focus on reducing formaldehyde emissions through modified formulations and alternative crosslinkers like glyoxal. Proper catalyst selection and curing conditions are critical for optimal performance.
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