Decorative Panel PVC Core Plasticizer Toxicity Reduction
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Solution Overview
Problem
There is a need for alternative plasticizers that are safer and less toxic for use in polyvinyl chloride compositions, particularly in decorative panels, as existing plasticizers have volatility and gellation temperature issues that affect their application and safety.
Innovation Solution
The use of high-molecular weight ortho-pthalates with alkyl chains of seven to ten carbon atoms, combined with other plasticizers like DOTP, DINP, and DIDP, in the core of decorative panels, along with compatibilizers and renewable or biodegradable polymers, to improve safety and performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If high-molecular weight ortho-phtalates with alkyl chains of seven to ten carbon atoms are used as plasticizers, then safety and toxicity are improved, but diffusion rate decreases
Solution Approach 1:
The patent changes the molecular weight parameter and alkyl chain length (C7-C10) of the ortho-phtalate plasticizers to achieve a balance between safety/toxicity and diffusion rate. High-molecular weight plasticizers with specific chain lengths provide improved safety while maintaining adequate diffusion characteristics for the application.
2Object-affected harmful factors
If high-molecular weight ortho-phtalates are used as plasticizers, then safety is improved, but volatility and gellation temperature properties change
Solution Approach 1:
The patent utilizes parameter changes in the plasticizer molecular structure (high molecular weight, C7-C10 alkyl chains) to simultaneously improve safety and adjust gelation temperature characteristics, achieving a optimized balance for the decorative panel application.
3Strength
If multiple different plasticizers from group (A) and additional plasticizers from group (B) are combined in the core, then mechanical properties and safety are improved, but composition complexity increases
Solution Approach 1:
The patent employs composite plasticizer formulations combining multiple plasticizers from group (A) with additional plasticizers from group (B) to achieve synergistic effects that improve mechanical properties and safety. This composite approach allows optimization of the plasticized polyvinyl chloride core while managing the complexity through systematic selection from defined groups.
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 solution results in a safer and more effective plasticization of polyvinyl chloride, with a slower diffusion rate and improved mechanical properties, such as flexibility and impact resistance, while being environmentally friendlier.
Implementation Method 1
One of the causes of this positive technical effect is the considerably slower diffusion rate compared to classical plasticizers
Data Source
AI summary
In the field of decorative floor coverings, decorative panels are known having a MDF (Medium Density Board) or HDF (High Density Board) based core layer on top of which a decorative substrate is attached to provide the panels a desired appearance. The invention relates to a panel, in particular a decorative panel, a floor panel, a ceiling panel or a wall panel. The invention also relates to a floor covering consisting of a plurality of mutually coupled panels.