Resorcinol Formaldehyde Resin
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Product Description
Resorcinol Formaldehyde Resin
(Adhesive resin)
Resorcinol formaldehyde resin is a water-soluble room-temperature curing adhesive produced by the initial polycondensation of resorcinol and formaldehyde. It is particularly suitable for wood gluing and nylon cord fabric to rubber bonding that require low-temperature curing. It has high bonding strength, water resistance and heat resistance.
The resin can be prepared into a low-toxic, environmentally friendly adhesive by adjusting the raw material molar ratio (e.g., resorcinol:formaldehyde = 1.0:2.0) and additives (such as sesbania gum and diatomaceous earth). It cures in 7.2 minutes and emits 0.28 mg/L of formaldehyde. In the field of photocatalysis, a sandwich catalyst based on this resin achieves a solar energy conversion efficiency of 1.23%, with an anthraquinone-modified version exhibiting a fourfold increase in activity. When used as a catalyst structure modifier, it can improve cobalt dispersion and selectivity for higher-carbon hydrocarbons. Resorcinol-phenol-formaldehyde resin (RPF) uses nanomagnesium hydroxide as a curing agent to reduce free formaldehyde, resulting in a bond with a dry strength exceeding 10 MPa.
Specification of Product
Product Name : Resorcinol Formaldehyde Resin
Grade: Ⅰ Grade
Molecular Formula: (C6H6O2.CH2O)x
Cas No.: 24969-11-7
Physical Data
Appearance: Red-brown pastille
Heating Loss,%: ≤ 0.7
Softening Point, ℃: 99 -109
PH (50% alcohol-aqueous solution): 4 - 6
Solubility
Water: completely insoluble
Alcohols: completely soluble
Ketones:completely soluble
Aromatic hydrocarbon solvents: partly soluble
Packaging, transportation, and storage
Package：25kg/ bag.
Avoid shine, rain, and high temperatures in transportation.
Store the products in cool, shady, and ventilated conditions.
Application Characteristics:
It replaces the fuming and toxic resorcinol. When combined with methylene donors such as HMT and RA65, they form a resorcinol-formaldehyde-silica (RFS) adhesion system.
This system enhances the adhesion between rubber and structural materials such as steel wire, cord, and nylon.
When used as a wood bond, it exhibits high strength, water resistance, and heat resistance, making it an indispensable adhesive for bonding nylon cord fabric to rubber.