Results 181 to 190 of about 1,544 (217)

Rheological behavior of polypropylene/novolac blends

Journal of Applied Polymer Science, 2007
AbstractThe rheological behavior of polypropylene/novolac blends was investigated with special reference to the effects of the blend ratio, compatibilization, and dynamic cure. The polypropylene and all the polypropylene/novolac blends presented evidence of shear‐thinning behavior.
Limei Cui, Zhen Zhou, Yong Zhang, Yinxi Zhang, Xiangfu Zhang, Wen Zhou   +5 more
openaire   +1 more source

Modified epoxy-novolac block cooligomers

Polymer Science Series D, 2012
New thermoreactive polymers with predefined properties are prepared for the case of modification of an epoxy-novolac block cooligomer by high-molecular-weight polymers (rubbers, polyvinylbutyral, polyamide, and polyimide), depending on the synthetic conditions and processing regimes.
M. S. Trizno, E. V. Moskalev, V. V. Tsoi
openaire   +1 more source

Influence of biomass on the curing of novolac-composites

European Polymer Journal, 1996
Abstract Novolac resin (N) was cured with hexamethylenetetramine (hexa) without or with biomass (B). The agricultural/industrial by-product of olive stones was used as biomass. The curing was followed by DSC and i.r.-spectroscopy and the kinetic of curing was performed based on DSC scans.
J. Simitzis, K. Karagiannis, L. Zoumpoulakis   +2 more
openaire   +1 more source

Glass‐reinforced epoxy novolac composites

Polymers for Advanced Technologies, 1991
AbstractEpoxy Phenolic novolac resins were prepared from the acid catalyzed condensation products of various phenols such as phenol, p‐cresol, p‐tert‐butyl‐phenol and cardanol with formaldehyde. All of these resins have been utilized to prepare the glass‐reinforced composites. The fabricated composites were evaluated for their mechanical and dielectric
R. D. Patel, M. B. Patel, R. G. Patel, V. S. Patel   +3 more
openaire   +1 more source

Blends of Epoxy and Epoxidized Novolac Resins

Journal of Elastomers & Plastics, 2005
The effect of the addition of two types of epoxidized novolac resins separately to cold-set bisphenol-A-based epoxy resin has been investigated in this study. Bisphenol A epoxy resins containing 2.5-20 wt% of epoxy novolac are cured in the presence of a polyamide hardener and tested for thermal and mechanical properties, hardness, water absorption, etc.
K. P. Unnikrishnan, Eby Thomas Thachil
openaire   +1 more source

Effect of salt on the dissolution of novolac in base

SPIE Proceedings, 1997
The increase in dissolution rate brought about by the addition of salt to the developer is caused by the difference in the diffusivities of the OH - ions of the base and the anions of the salt. Adding salt increases the flux of cations into the film allowing the flux of anions to increase too. The faster OH - ions, which alone control the dissolution
Myoung-Soo Kim, Arnost Reiser
openaire   +1 more source

Intermolecular hydrogen bonding in novolacs

Industrial & Engineering Chemistry Product Research and Development, 1985
Zvonimir Katovic, Miljenko Stefanic
openaire   +1 more source

Boron-containing novolac resins as flame retardant materials

Polymer Degradation and Stability, 2006
V Cadiz
exaly  

Novolac

2011
openaire   +1 more source

Electrical properties and conductive mechanisms of immiscible polypropylene/Novolac blends filled with carbon black

European Polymer Journal, 2007
Yong Zhang, Yinxi Zhang
exaly