Plaster Board Damping Layer Integration
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Solution Overview
Problem
Existing methods for manufacturing sound-damping plaster boards involve time-consuming cutting and separate lamination processes that can lead to structural weaknesses and product defects such as misalignment and delamination.
Innovation Solution
A method for producing plaster boards with continuous layers of damping material embedded within the body of plaster material by incorporating thermally-curable polymer precursors during the plaster hardening process, eliminating the need for cutting and separate lamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a two-step process of cutting plaster board and bonding with adhesive is used, then sound-damping functionality is achieved, but production time increases and structural strength decreases
Solution Approach 1:
The patent combines the sound-damping layer application and plaster board formation into a single simultaneous process. The damping polymer is applied to the plaster board surface while the plaster is still wet, allowing both components to cure together in one step rather than requiring separate cutting and bonding operations.
Solution Approach 2:
The damping polymer is applied to the plaster board surface before the plaster fully cures. This preliminary application allows the polymer to be embedded in the wet plaster matrix, ensuring proper integration and eliminating the need for subsequent cutting and bonding steps.
2Reliability
If cutting and separate lamination is used, then sound-damping layers are added, but manufacturing complexity increases and product quality decreases due to misalignment and delamination
Solution Approach 1:
The patent merges multiple manufacturing steps into one integrated process. The damping polymer application, plaster application, and curing operations are combined into a single simultaneous process, eliminating the complexity of separate cutting, alignment, and bonding operations.
Solution Approach 2:
The wet plaster matrix automatically embeds and positions the damping polymer layers during the forming process. The plaster itself serves as the bonding medium, eliminating the need for separate adhesive application and alignment procedures.
3Reliability
If cutting and separate lamination with adhesive is used, then damping layers are incorporated, but structural integrity worsens due to weakened plaster material
Solution Approach 1:
The damping polymer is applied to the plaster surface while the plaster is still wet and pliable. This allows the polymer to be embedded within the plaster matrix before the plaster fully cures, creating a unified structure without compromising the plaster's structural integrity through subsequent cutting operations.
Solution Approach 2:
The wet plaster matrix acts as an intermediary that bonds the damping polymer layers to the plaster board structure. The plaster itself serves as the bonding medium, creating a unified structure where the polymer and plaster cure together, eliminating weak interfaces that would result from separate bonding operations.
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
This method results in improved sound-damping performance and structural integrity by ensuring uniform integration of damping layers, reducing production time and defects.
Implementation Method 1
each polymer precursor is a thermally-curable formulation that is curable to form the damping sheet and wherein hardening of the wet plaster material into the body of hardened plaster material generates sufficient heat to cure the thermally-curable formulation to provide the damping sheet
Implementation Method 2
drying the wet plaster board precursor such that the wet plaster material hardens into the body of hardened plaster material
Data Source
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AI summary
The present disclosure relates to plaster boards and methods for making them. For example, one aspect of the disclosure is a piaster board comprising one or more continuous layers of material disposed within a body of hardened plaster material, the first side and second side of each continuous layer of material being substantially covered by the hardened plaster material, in certain such embodiments, each continuous layer of material includes a polymer (e.g., a damping polymer) disposed on a carrier sheet. Another aspect of the disclosure relates to a method for making a plaster board that involves drying a wet body of plaster material while a continuous layer of material or precursor therefor is disposed within it.