Products Description
PEPA is characterized by its long molecular chain and multiple active amine groups, which enable it to not only achieve efficient cross-linking when used as a curing agent for epoxy resins, but also to impart excellent flexibility, impact resistance and bonding strength to the cured product. Additionally, due to its amine group reactivity, it can also play an efficient role in dispersing, chelating and emulsifying in fields such as oil demulsification, water treatment and mining additives.
Products Specification
| Product name | PEPA/Polyethylene-polyamines |
| CAS NO | 68131-73-7 |
| ITEM NO | M677 |
| Appearance | Colorless to pale yellow transparent liquid |
| Color intensity (APHA) | 200 |
| Amine value | 1218 |
| Specific gravity (at 20/20℃) | 0.996 |
| Initial boiling point | ≥330℃ |
| Water | ≤0.1% |
| Package | 1Kg/100kg/1000kg etc. |
| Delivery | 2-3days |
| Storage | room temperature |
| MSDS/COA/TDS | Connect us |
| Amine value range | Characteristics | Recommended Scenario |
|---|---|---|
| 1200–1300 | High activity and fast curing speed | Floor coatings, quick repair materials |
| 1100–1200 | The operation period is moderate. | Antifungal coatings, adhesives |
| Low chroma products | Light color | Transparent coating system |
Products Application
1. Epoxy resin curing agent
Applicable to: industrial flooring, heavy-duty anti-corrosion coatings, carbon fiber composite materials, electronic potting sealants.
2. Oilfield chemicals
Used as a starting agent to synthesize polyether crude oil demulsifier, achieving oil-water separation of oil produced from the oilfield. It can also be used to prepare oilfield corrosion inhibitors.
3. Lubricant additives
Synthesize lubricant cleaning and dispersion agents to improve the high-temperature cleaning performance of the oil products.
4. Water treatment and separation materials
Prepare anion exchange resins and ion exchange membranes; also used to synthesize flocculants and heavy metal chelating agents, for wastewater treatment and chemical separation.
5. Other industrial synthesis
Can be used as electroplating additives, gas desulfurization and decarbonization absorbents, and also for synthesizing various chemical products such as polyamides and cationic surfactants.
FAQ
Q: Does PEPA come in different models?
A: It is a mixture of amines, with varying proportions of each component, resulting in different amine values, viscosities, and reactivity. This makes it suitable for different formulation process requirements.
Q: What effects do viscosity and amine value have on the curing effect of epoxy?
A: The higher the amine value, the faster the curing reaction speed; viscosity affects the fluidity of the mixture. A higher viscosity makes the mixture thicker, reducing the operational flexibility during construction. Both of these factors will affect the final hardness and corrosion resistance of the cured product.
Q: Could it be directly added to the wastewater for water treatment?
A: It is not recommended to directly add the wastewater. It is mainly used as a raw material for synthesis. After the reaction to prepare derivatives such as flocculants and chelating agents, it is then used in water treatment.
Q: Could different types of polyethylenepentamine be mixed with each other?
A: It can be mixed, but it will change the overall amine value and viscosity. The curing speed and construction performance will also change. Before mixing, it is recommended to conduct a small-scale test to confirm the formula effect.
Q: When used in epoxy floor coatings, what are the requirements for the construction environment temperature of this product?
A: It belongs to a room-temperature curing system. Curing at low temperatures will significantly slow down. In low-temperature environments, the formulation or construction conditions need to be adjusted.
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