„ Fuel = Resin, Catalyst, Rags, Wood, Paper, Plastic Sheeting, Composites
燃料-树脂,催化剂,碎屑,木头,纸张,塑料板,合成物
„ Heat = Smoking, Hot Work, Electrical Equipment, Pilot Lights, Floor Scrubbers, Sparks from Tool Strikes, Static Electricity, Chemical Reaction, Curing, etc.
热源-吸烟,动火作业,电气设备,灯具,地板刮擦,工具撞击产生的火花,静电,化学反应,烘焙等。
„ Oxygen –found in air. Good ventilation is mandatory in composite operations so there will be lots of oxygen and it will be hard to stop. Lots of surface area (e.g. rags, sprayed resin) affords more contact for oxygen to get into the mix.
氧气-存在于空气中。在合成物操作时需要良
好的通风,因此很难去阻止空气的进入。大多物体表面(例如碎屑,树脂喷射)会增加与氧气的接触。
Chain Reaction = The Fire Process (sustained burning)
连锁反应=火燃烧过程(持续燃烧)
„ Flammability of resin is usually related to the styrene monomer content
„ 树脂的易燃性主要是因为含有苯乙烯单体
„ Flash Point Range闪点范围
u 23C-29C
„ Flammable Limits (in air)燃烧极限(空气中)
u Lower Explosive Limit (LEL) = 0.9%, Upper Explosive Limit (UEL) = 6.8%
爆炸下限=0.9%,爆炸上限=6.8%
• Styrene vapors are heavier than air and can collect in low areas
苯乙烯的密度比空气重,比较容易在低洼区域积聚
• Vapors may also travel great distances to ignition sources
蒸汽也可能流到远处的点燃源附近
„ Critical: When handling liquids (including combustibles) at elevated temperatures the flash point can be lowered by as much as 30°. Caution is required at elevated temps.
关键:在高温环境下处理液体(包括可燃品),其闪点可能下降(几乎可降低30度)。在高温环境中操作应谨慎。
„ Atomization of liquids effects ignitability. Atomized combustible liquids can easily ignite when used in spray applications.
液体的雾化会影响它的可燃性。雾化的可燃液体在喷洒操作时很容易被点燃。