Plastic Molding with Embedded Metallic Reinforcement for Thermal Resistance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Plastic moldings with high filler content used in kitchen and sanitary applications suffer from inadequate thermal resilience, leading to crack formation and water penetration due to thermal cycling, and existing solutions like fiber fabrics face delamination issues under temperature changes.
Innovation Solution
Embedding a flat metallic reinforcing element, such as a metal fabric or mesh, within the bottom surface of the plastic molding, particularly near the rear side, to enhance thermal resistance, combined with a binder system including methyl acrylate or methacrylate and specific additives for improved viscosity and thermal stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If high filler content is used to achieve required mechanical properties, then mechanical strength is improved, but thermal resistance deteriorates leading to crack formation under temperature cycling
Solution Approach 1:
The patent uses a composite material system consisting of polymerizable casting compounds combined with inorganic fillers (such as quartz, aluminum oxide, or granite particles) to create a molded part that maintains mechanical strength while improving thermal resistance. The inorganic fillers are distributed throughout the polymer matrix to create a composite structure that resists thermal cycling better than pure polymer materials.
2Reliability
If fiber fabric is applied to the visible side to improve thermal resistance, then crack formation is reduced, but delamination occurs under high temperature cycling
Solution Approach 1:
Instead of applying reinforcement only to the surface (2D), the patent embeds flat metallic reinforcing elements within the thickness of the molded part (3D integration). This allows the reinforcing elements to be distributed through the material volume, providing structural support throughout and preventing delamination issues that occur with surface-only applications.
Solution Approach 2:
The metallic reinforcing elements act as an intermediary between the polymer matrix and the thermal stresses. These elements (such as metal meshes or foils) are embedded within the molded part to provide a structural framework that resists cracking while maintaining bond stability, serving as a mediator that distributes thermal stresses throughout the material.
3Reliability
If metallic reinforcing element is embedded near the rear side of the base, then cracking on the visible side is reduced, but manufacturing precision requirements increase
Solution Approach 1:
The metallic reinforcing elements are embedded in the molded part during the manufacturing process itself, before the final product is completed. This preliminary integration allows the reinforcing elements to be positioned correctly during molding, and the patent specifies that exact positioning within the rear half of the base thickness is sufficient to achieve the desired crack resistance without requiring ultra-precise placement.
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 solution significantly reduces crack formation on the visible side and enhances thermal cycling resistance, with the reinforcing element effectively distributed across the bottom surface to withstand high loads, while the binder system improves the plastic molding's boiling resistance and durability.
Implementation Method 1
binder, in particular comprising methyl acrylate or methyl methacrylate, which, after curing, leads to molded bodies based on acrylic resin
Data Source
AI summary
The present invention relates to a plastic molded part with a basin shape for kitchen or sanitary applications, wherein the molded part has a base surface with a visible side facing the basin volume and an opposite back surface, and wherein the molded part is produced by curing a casting compound comprising a binder with a polymerizable monomer and a proportion of 40 to 85 wt.% of at least one inorganic filler. At least one planar metallic reinforcing element is embedded in the base surface.