Glass transition temperatures (Tg) of epoxy resins, diglycidyt ether of bisphenol-A cured with piperidine, have been measured by differential scanning calorimetry and dynamic mechanical thermal analysis in order to follow the curing process. Optimum cure conditions have been established as 30 PP at
Moisture absorption behavior of rubber-modified epoxy resins
β Scribed by King-Fu Lin; Ren-Jie Yeh
- Publisher
- John Wiley and Sons
- Year
- 2002
- Tongue
- English
- Weight
- 763 KB
- Volume
- 86
- Category
- Article
- ISSN
- 0021-8995
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
Rubber-modified epoxies of tetraglycidyl-4,4'-diaminodiphenyl methane and a carboxylterminated copolymer of butadiene-acrylonitrile ( CTBN) have been investigated by differential scanning calorimetry, scanning electron microscopy, and micrograph image analysis. Bisphenol-A (BPA) was used to produce
Vinyl esters are used widely as thermoset matrix materials for reinforced composites; however, they suffer from low-impact resistance. Substantial enhancement of the toughness of brittle polymers may be achieved by dispersing elastomeric inclusions or rubber particles in the polymer matrix, inducing
## Abstract Carboxylβterminated poly(2βethyl hexyl acrylate) (CTPEHA) having various molecular weights were synthesized by bulk polymerization in the form of liquid rubber. The liquid rubbers (LRβ1 to LRβ4) were characterized by ^13^CβNMR spectroscopic analysis, nonaqueous titration, and vaporβpres
Epoxy resins absorb significant quantities of moisture, typically 1 to 7% by weight for various formulations, which can greatly compromise their physical properties. It is known that polarity of the epoxy is a significant factor in determining the ultimate moisture uptake. However, the contribution