CAS NO.：100-51-6
Molecular structural formula:
Benzyl alcohol, abbreviated as BA, is a colorless liquid with low viscosity (molecular formula: C6H5CH2OH). Also known as benzyl alcohol. Benzyl alcohol is the simplest fatty alcohol containing phenyl, which can be regarded as hydroxymethyl substituted benzene or phenyl substituted methanol. It is a colorless, transparent and viscous liquid with weak aromatic smell, with polarity, low toxicity and low vapor pressure, so it is used as an alcohol solvent. Flammable. Slightly soluble in water (4 g/100 mL), miscible with organic solvents such as ethanol, ether and benzene chloroform.
Use of benzyl alcohol
Benzyl alcohol is an excellent medium-boiling solvent, which is mainly used in: Diluent, curing agent, solvent and plasticizer for epoxy resin; Epoxy coating; Pharmaceutical synthesis and preservatives for solvents, ointments or liquid medicines; Photographic developer, joint cleaner, plexiglass solvent, lens colorant; Meat food printing oil and ballpoint pen oil solvent, ink solvent; The fixative is an indispensable perfume for the preparation of jasmine, Yuexiaxiang and ylang ylang, and can also be used to prepare the essence of soap and daily cosmetics.
Advantages of benzyl alcohol used as epoxy diluent
Advantages of benzyl alcohol used as epoxy diluent: Epoxy resin curing agent 1,3-BAC, AEP, IPDA, D-230 and other necessary solvents for modification; The material itself is non-toxic (it can be used for human injection of reagents); High boiling point, not volatile, and after curing, because benzyl alcohol has strong polarity, it can be well compatible with epoxy resin, and there will be no migration; Benzyl alcohol can promote the reaction between epoxy resin and amine and accelerate the reaction speed; Benzyl alcohol has good hydrophobic properties, which can significantly improve the gloss of the coating and reduce the occurrence of whitening phenomenon; Benzyl alcohol can improve the toughness of cured products.
Application fields of benzyl alcohol as diluent for epoxy resin
Benzyl alcohol can be used in epoxy flooring, epoxy potting, epoxy solventless coating, epoxy decorative adhesive, amine curing agent modification and so on. Matters needing attention in using benzyl alcohol: Benzyl alcohol needs to be stored away from light, otherwise it will turn yellow. It can only be used in epoxy resin/amine curing system, especially in epoxy resin/anhydride system; It is necessary to control the addition amount, because the addition of benzyl alcohol will reduce the mechanical properties, solvent resistance and chemical resistance of the cured product, so it is necessary to determine the addition ratio according to the actual requirements. In addition, benzyl alcohol can obviously improve the curing speed, so this point needs to be considered. In practical application, many manufacturers use benzyl alcohol as diluent, especially for diluting curing agent.
