Post-Deformable High-Pressure Composite via Thermoplastic Resin
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Solution Overview
Problem
Traditional high-pressure composites lack the ability to change shape after manufacturing, limiting their versatility and aesthetic appeal in applications such as automotive, aerospace, and architecture.
Innovation Solution
A post-deformable high-pressure composite is manufactured using a method that involves arranging Kraft paper sheets coated with thermoplastic resin and a decorative coating, followed by hot compression moulding at specific temperature and pressure conditions, allowing the composite to be moulded into various shapes post-manufacture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional thermosetting resins are used to impregnate Kraft paper, then mechanical resistance and chemical stability are improved, but the ability to change shape after manufacturing is lost
Solution Approach 1:
The patent applies parameter changes by transitioning from thermosetting resins (which cure irreversibly) to thermoplastic resins (which can be melted and reformed). This fundamental material parameter change enables the composite to be manufactured in flat shape with adequate mechanical strength, then later heated to melt the thermoplastic resin and molded into desired three-dimensional shapes, resolving the contradiction between initial strength and subsequent deformability
Solution Approach 2:
The patent implements dynamics by creating a composite material whose mechanical properties are not fixed but can change based on temperature. The thermoplastic resin allows the composite to transition from a rigid state during manufacturing to a flexible, moldable state during post-processing, enabling shape changes while maintaining structural integrity when needed
2Manufacturing precision
If the composite is made rigid and stable, then manufacturing precision and structural integrity are improved, but flexibility and mouldability are reduced
Solution Approach 1:
The thermoplastic resin enables parameter changes in the composite's physical state. During manufacturing, the resin is in a solid state providing structural integrity. During post-forming, heating transitions the resin to a molten state providing flexibility and moldability, allowing the same material to satisfy both contradictory requirements at different stages
3Adaptability or versatility
If thermoplastic resin is used to enable mouldability, then flexibility and deformability are improved, but mechanical strength and stability may be reduced
Solution Approach 1:
The patent employs composite materials by combining Kraft paper layers with thermoplastic resin impregnation. The Kraft paper provides the structural framework and mechanical strength, while the thermoplastic resin provides the moldability and flexibility. This composite structure allows both strength and deformability to coexist, as each component compensates for the other's weaknesses
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The resulting composite exhibits improved flexibility, mechanical strength, and aesthetic versatility, enabling it to be used in a wide range of applications while maintaining the physical and chemical resistance of traditional composites.
Implementation Method 1
the resins used to impregnate the Kraft paper layer (3) have been replaced by thermoplastic resins which, when submitted to a certain temperature, become flexible and mouldable
Implementation Method 2
hot compression moulding at specific temperature and pressure conditions
Implementation Method 3
the composite (1) formed in step b) remains in the compression moulding means until the latter cool to a temperature ranging from 17 to 22° C. and at a pressure between 50 and 120 bar
Data Source
AI summary
The present invention falls within the scope of thermo-laminated and compact high-pressure composites, namely it relates to a method for the manufacture of a post-deformable high-pressure composite, which can be used in the automotive, aircraft, railway and naval industries, as well as in the architecture and design sector, both in indoor and outdoor environments, comprising the steps of formation of a composite (1) by the arrangement of at least two layers of material, including a layer of Kraft paper sheets (3) coated with thermoplastic resin and a layer of decorative coating; the composite formed in a flat shape, when subjected to a certain temperature and pressure in a mould (4), changes in its geometry according to the shape of that mould (4). It is also an object of this invention the product obtained with the aforementioned manufacturing method.