Reinforced composite materials for use in the manufacture moulds and the use of such moulds
First Claim
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1. A method for producing a composite mould, comprising:
- i) forming a substrate;
ii) applying a fibre reinforced structural laminate to the substrate, wherein said fibre reinforced structural laminate comprises;
a) a first plurality of reinforcing fibres; and
b) a first curable resin mixture, comprising a first curable resin and a wetting agent, wherein the wetting agent is prepared by reacting a polyol with an organo-functional silane;
iii) applying a syntactic foam moulding product to the fibre reinforced structural laminate, wherein said syntactic foam moulding product comprises;
a) a plurality of treated reinforcing microfibres;
b) a second curable resin mixture, comprising a second curable resin, and optionally thixatropes and plastic spheres/hemispheres; and
c) a coupling agent, wherein the coupling agent is prepared by reacting a polyol with an organo-functional silane;
iv) optionally applying a tooling gel coat to the surface of said syntactic foam moulding product for the manufacture of moulds that require a high gloss surface finish; and
v) curing said composite mould.
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Abstract
The present disclosure relates to the preparation of composite molds and methods of preparing the same, wherein the composite molds may be prepared exclusive or inclusive of a plug. Certain composites comprise a substrate, a structural laminate, and a syntactic foam molding product.
44 Citations
20 Claims
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1. A method for producing a composite mould, comprising:
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i) forming a substrate; ii) applying a fibre reinforced structural laminate to the substrate, wherein said fibre reinforced structural laminate comprises; a) a first plurality of reinforcing fibres; and b) a first curable resin mixture, comprising a first curable resin and a wetting agent, wherein the wetting agent is prepared by reacting a polyol with an organo-functional silane; iii) applying a syntactic foam moulding product to the fibre reinforced structural laminate, wherein said syntactic foam moulding product comprises; a) a plurality of treated reinforcing microfibres; b) a second curable resin mixture, comprising a second curable resin, and optionally thixatropes and plastic spheres/hemispheres; and c) a coupling agent, wherein the coupling agent is prepared by reacting a polyol with an organo-functional silane; iv) optionally applying a tooling gel coat to the surface of said syntactic foam moulding product for the manufacture of moulds that require a high gloss surface finish; and v) curing said composite mould. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification