What is Unsaturated polyester resin accelerator?
Jan 23, 2019
Unsaturated polyester resin accelerator
refers to the polyester resin in the curing process, can reduce the
initiator initiation temperature, promote the organic peroxide at room
temperature to produce free radical material.
polyester resin with organic peroxide critical temperature above 60 ℃,
all can not meet the requirement of the room temperature curing, only in
the presence of the reducer (or oxidant), organic peroxide
decomposition activation energy can be significantly reduced, so that
organic peroxide decomposition temperature can be decomposed at room
temperature, therefore, made up of initiator and accelerator system
often referred to as the trigger system.
according to its effect on the organic peroxide classification: (1) the
effective promoter of peroxide;(2) effective promoter of hydroxide;(3)
to peroxide and hydroxyl peroxide are effective promoter.Most
promoters are reductive, and their mechanism of action is to promote
the formation of free groups of peroxides and reaction chains.
according to the initiator promoter system classification: (1)
dibenzoyl peroxide - tertiary amine system;(2) keto peroxide cobalt
naphthenate initiator system.
combination accelerator: the combination of one accelerator and the
other accelerator will produce synergistic effect and shorten the gel
time and curing time
QuanZhou Neweco High Polymer Material Co.,Ltd.
is one of the leading unsaturated polyester resin manufacturers and
suppliers,widely used in automobiles, ships, rail transit, wind power
generation, pipe cans, heat and corrosion protection, building
materials, stone repair, sanitary ware, artificial stone and other
industries. Suitable for hand lay-up, spray, pultrusion, winding,
molding, vacuum introduction / RTM, casting and other molding
processes. Neweco Resin is committed to excellence and focuses on the
application of composite materials to provide customers with