A novel thermoplastic polyurethane was prepared from cardanol, a renewable resource and a waste of the cashew industry. Cardanol was recovered from cashew nut shell liquid (CNSL) by double vacuum distillation. It was characterized by CHN analysis and IR, 1 H-NMR, and 13 C-NMR spectroscopy techniques
Effect of cashew nut shell liquid (CNSL) on properties of phenolic resins
β Scribed by P. A. Mahanwar; D. D. Kale
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 330 KB
- Volume
- 61
- Category
- Article
- ISSN
- 0021-8995
No coin nor oath required. For personal study only.
β¦ Synopsis
SYNOPSIS
Cashew nut shell liquid (CNSL) is a natural product, and because of its phenolic nature it undergoes reactions similar to those of phenol. The cost of CNSL is much less than phenol. The effect of replacement of phenol by CNSL on the properties of novolak and resole resins was experimentally investigated.
π SIMILAR VOLUMES
The liquid extracted from cashew-nut shell is composed almost completely of phenolic compounds containing 15-carbon chains with variable unsaturation degrees, meta-substituted in the aromatic ring. The similarity of these compounds with the structures described as efficient peptizing agents for asph
Effect of fillers like carbon black, silica, and china clay on the cure characteristics and physicomechanical properties of natural rubber (NR) modified with phosphorylated cashew nut shell liquid (PCNSL) in various proportions has been studied. Prominent cure retardation has been observed with prog
The effect of salicylic acid and its derivatives on the properties of phenolic resin composites was evaluated. The composites were reinforced with aluminum oxide particles in both solid and hollow forms. Differential scanning calorimetry studies have shown that the reaction rate of phenolic resin wa
Natural rubber (NR) has been modified with 10 phr each of phosphorylated cashew nut shell liquid (PCNSL) prepolymer and an aromatic oil (spindle oil) in a typical semi-efficient vulcanization (SEV) system. Despite the lower chemical crosslink density, the PCNSL modified NR vulcanizate showed higher
Resole phenolic resins containing various p-cresol (PC) to phenol (P) mol ratios were prepared and characterized. These phenolic resins were blended with nitrile rubber (NBR) and the measurements of adhesive joint strength, stress-strain properties, DSC, TGA, DMA, TEM, and SEM were performed using a