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US 2026/0103886 A1Published application
Composite material and method for manufacturing an insulation brick with recycled fiberglass from wind turbine blades
AssigneesStefano TABARELLI DE FATIS, Compton Industriale SPA
InventorStefano TABARELLI DE FATIS
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Abstract
A composite material for manufacturing an insulation brick comprising a filler obtained from recycled fiberglass and a silicate base binder, the filler being a fiberglass powder with particle size lower than 500 μm.
Claims11
A composite material for making an insulation brick comprising:
- a filler;
- a silicate base binder;
- an expanding agent suitable for generating a gaseous phase in the composite material;
- and
- a catalyst suitable for decomposing the expanding agent and thus creating an expanding gaseous phase and suitable for gelling the binder to create an insoluble gel;
- wherein said filler comprises:
- recycled fiberglass from wind turbine blades comprising fibers bonded with resins and polyurethane foam, in the form of a powder having a particle size of less than 500 μm, obtained with a sieve having holes with a diameter of less than 500 μm;
- and
- clay comprising chamotte obtained from the recycling of finely ground bricks with a particle size of less than 500 μm, obtained using a sieve with holes smaller than 500 μm in diameter;
- wherein said binder is a liquid neutral binder having a molar ratio of silicate anhydride to alkali metal oxide of between 2.9 and 3.9;
- and
- said catalyst is an ester, such as diacetin or triacetin.
9 more elements
Manufacturing process for an insulation brick comprising the following steps:
- grinding pieces of recycled fiberglass from wind turbine blades comprising fibers bonded with resins and polyurethane foam, until a powder with a particle size of less than 500 μm is obtained;
- grinding clay comprising chamotte obtained from the recycling of finely ground bricks with a particle size of less than 500 μm;
- mixing said pieces of recycled fiberglass with said ground clay to obtain a filler in the form of a powder with a particle size of less than 500 μm;
- mixing said filler with a liquid, neutral silicate base binder having a molar ratio of between 2.9 and 3.9, with an expanding agent and with a catalyst which is an ester in such a way to obtain a mixture;
- pouring the mixture into a mold to make a brick;
- and
- drying the brick.
4 more elements
Dependencies are inferred from the claim text.