Support and Safety Measures...
Explosion & Fire Hazards |
Health Hazards |
Supervision & Maintenance |
Fire Protection |
Working of OP |
Reinforced thermosetting resins are one of
the faster growing segments of a rapidly expanding plastics
industry. This growth will create vast needs for operating
personnel, resulting in an increased burden of training these
new people in the safety aspects of the industry. In addition,
there has been an intensified emphasis on ecology, health, and
safety, accompanied by ever tighter legislation, so that even
veterans in the industry will profit from the information
contained in this bulletin.
In their function as free radical initiators (catalysts)
organic peroxides are essential components in the manufacture of reinforced
plastics. Small amounts, mixed with resins and decomposed by means of heat or
promoters, produce active fragments (radicals) which initiate resin
polymerization. The resin polymerization occurs in combination with the various
reinforcing materials (such as glass cloth) to produce thermosetting products
having the required properties.
The ability of very small amounts of organic peroxides to
produce active radicals sufficient for complete polymerization should emphasize
the importance of proper procedures in handling and storing the commercial
concentrated forms of these peroxides.
Failure to observe these procedures can lead to poor product
performance and quality and, in some instances extremely hazardous conditions.
Various peroxide formulations or products differ from each other in the hazard
potential of their decomposition and, hence, in their handling requirements.
Only the kinds commonly used in RP manufacture will be