The formulation of resorcinol-formaldehyde adhestves
✍ Scribed by Hancock, E. G.
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1947
- Weight
- 422 KB
- Volume
- 66
- Category
- Article
- ISSN
- 0368-4075
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
After a brief review of previous work experiments are described showing the effect of formulation and conditions of production on the stability or shelf life of resortinol‐formaldehyde condensation products. Consideration is given at the same time to the best means of causing the condensation product to set to a strong cement. Examples are given, using an asbestos base laminated plastic, of the shear strength of lap joints from suitably formulated cements. The effect of immersion of these joints in boiling water, dilute acids and alkalis and the effect of exposing them to very dry and very humid atmospheres is described.
📜 SIMILAR VOLUMES
## Study of the Reaction of Resorcinol, Formaldehyde, and Ammonia G E. VAN GILS, General Tire and Rubber Company, Akron, Ohio &309 synopsis Latex dip adhesives for nylon and rayon tire cords are prepared by reacting resorcinol and formaldehyde in aqueous solution in the presence of a catalyst for
Resorcinol-formaldehyde (RF) aerogel chemistry has been used with encapsulation techniques to fabricate low-density, transparent, foam shells. To accomplish this, the gelation time was reduced from several hours to several minutes by the addition of acid following base-catalyzed RF particle growth.
RF aerogels were prepared by sol-gel polycondensation of resorcinol with formaldehyde in a slightly basic aqueous solution and supercritical drying with carbon dioxide. The aerogels were characterized by nitrogen adsorption and density measurements. A small-angle X-ray scattering (SAXS) technique wa
Resorcinol-formaldehyde (RF) hydrogels were synthesized by sol-gel polycondensation of resorcinol with formaldehyde using a few kinds of catalysts at a gelation temperature of 238 or 332 K. RF aerogels were prepared by supercritical drying with carbon dioxide. The aerogels were characterized by nitr