1-4-Butanediol diglycidyl ether CAS 2425-79-8, 1-4-Butanediol diglycidyl ether, CAS 2425-79-8
CAS : 2425-79-8
Formula : C10H18O4
Mol. wt. : 202.25
EINECS : 219-371-7
| CAS | 2425-79-8 |
| Molecular formula | C10H18O4 |
| Molecular weight | 202.25 |
| EIENCS | 219-371-7 |
| Form | |
| Melting point | -21 °C |
| boling point | 266 °C (lit.) |
| Density | 1.1 g/mL at 25 °C (lit.) |
| Solubility | SOLUBLE |
| PKA | |
| Color | Transparent yellow |
| Storage temp | Inert atmosphere,2-8°C |
In industry, 1, 4-butanediol diglycidyl ether is mainly prepared through the polycondensation reaction of 1, 4-butanediol with epichlorohydrin. Common methods include one-step method, two-step method or phase transfer catalytic method, etc.
Product quality is usually controlled through a series of technical indicators, such as:
Epoxy value: 0.74-0.83 eq/100g
Viscosity (25°C) : ≤ 10-20 mPa·s
Chromaticity (APHA) : ≤ 40
The core value of 1, 4-butanediol diglycidyl ether lies in its role as an active diluent and toughening agent for epoxy resins.
● Reduce viscosity and improve process: When directly added to epoxy resin, it can significantly reduce the viscosity of the resin system, making it more fluid during casting, impregnation, coating or composite material molding, and the operation more convenient.
● Participate in the reaction and enhance performance: Unlike single-functional diluents, its two epoxy groups can participate in the curing reaction and become part of the cross-linked network. This not only avoids the precipitation of small-molecule substances, but also enhances the mechanical properties such as flexibility and impact strength of the cured product.
● Application fields: Widely used in the preparation of solvent-free coatings, electronic packaging materials, adhesives, laminating materials, and fiber finishing agents, etc. The general recommended addition amount is 10% to 20% of the weight of the epoxy resin.
When using this chemical, it is essential to pay attention to its safety risks.
Health hazard: It is irritating to the skin, eyes and respiratory tract, and may cause skin allergies.
Personal protection: When operating, appropriate protective gloves, chemical-resistant goggles and protective clothing should be worn to ensure good ventilation in the workplace. In case of contact, rinse immediately with plenty of water and seek medical attention as needed.
Storage conditions: It should be stored in a sealed container in a cool, dry and well-ventilated warehouse, avoiding moisture and direct heat sources. Some materials are recommended to be stored at -20°C to maintain stability.
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