Motor Vehicle Interior Trim TPV Coating for Low Mass and Abrasion Resistance
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Solution Overview
Problem
Existing interior trim elements for motor vehicles face challenges in minimizing mass, gloss, and cost while maintaining high polarity and abrasion resistance, especially when using expensive materials and considering environmental impact.
Innovation Solution
A multilayer complex trim element with a thermoplastic coating layer comprising at least 85% vulcanized thermoplastic (TPV), which minimizes mass, gloss, and cost while maximizing polarity and abrasion resistance, and can be made from recycled materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If a coating layer is made thin to minimize mass, then mass is reduced, but abrasion resistance deteriorates
Solution Approach 1:
The patent changes the material parameters by using TPV with specific properties (high abrasion resistance, matte nature, high polarity, good extrusion capability) to enable thin layer application while maintaining required performance
Solution Approach 2:
The patent uses composite TPV material combining rigid polypropylene phase and flexible cross-linked EPDM phase to achieve both thinness and high abrasion resistance in the coating layer
2Strength
If expensive materials are used to achieve high performance, then abrasion resistance and polarity are improved, but cost increases
Solution Approach 1:
The patent optimizes material parameters by using TPV with specific properties (high abrasion resistance, matte nature, high polarity, good extrusion capability) to enable thin layer application while maintaining required performance
Solution Approach 2:
The patent promotes use of recycled TPV materials to reduce cost and environmental impact while maintaining the required performance characteristics
3Weight of moving object
If coating layer mass is minimized, then cost is reduced, but adherence to support layer may deteriorate
Solution Approach 1:
The patent changes the material parameters by using TPV with specific properties (high abrasion resistance, matte nature, high polarity, good extrusion capability) to enable thin layer application while maintaining required performance
Solution Approach 2:
The patent promotes use of recycled TPV materials to reduce cost and environmental impact while maintaining the required performance characteristics
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 proposed trim element achieves significant mass reduction, minimized gloss, enhanced polarity, and improved abrasion resistance, while being cost-effective and environmentally friendly due to the use of recycled TPV.
Implementation Method 1
to maximize its polarity, TPV being a highly polar material
Data Source
AI summary
The invention relates to an interior trim element (1) for a motor vehicle comprising a complex (2) having an upper coating layer (3) based on thermoplastic material and a lower support layer (4) associated with said coating layer, said support layer having a minimum mass per unit area of 400 g/m2 and being based either on a porous fibrous material or on a leak-tight flexible plastic material provided with a mineral filler representing at least 50% by mass of said support layer, said coating layer comprising at least 85% by mass of vulcanized thermoplastic (TPV) and having a mass per unit area of less than 600 g/m2.