Technology
The glass
reinforced mortar tube (FRPM) is made up of a fiber glass reinforced plastic (FRP)
layer and a resin mortar layer. Currently, only fine powder containing resin mortar
is recycled. Osaka University and Kurimoto jointly developed a technology to
recycle FRPM completely. The newly developed technology reprocesses wasted RRP
to heat insulator and reutilizes wasted resin mortar as FRPM. The research team
developed this technology under the leadership of Professor of Makio Naito of
Joining and Welding Research Institute of Osaka University.
Fractions of wasted
RFP are put in a mill, and they are separated into FRP waste material that
includes glass fiber and resin mortar. Nanoparticles of silica are added to the
surface of the collected the FRP waste material to produce a light-weight and porous
material with high degree of thermal insulation by press work. The reprocessed
insulator has lots of hollows of less than 100 nanometers, and it can be
utilized as insulator because it is light-weight and its thermal conductivity
is low. FRP is widely used in such industrial fields as automobile, aircraft,
and home electronics, and 45-50 tons of wasted glass fiber is produced
annually. Because no recycling technology is established, nearly all wasted FRP
is currently reclaimed or destroyed by fire. Protector tubes used for sewage
water pipes and telecommunication cables can hardly be recycled because the
composite structure containing the resin mortar layer accounts for more than
half of the cross section.
No comments:
Post a Comment