Water Absorbing Material from Separated Vinyl Chloride Wallpaper
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Solution Overview
Problem
Existing water absorbing materials containing polyvinyl chloride pose environmental hazards due to dioxin and chlorine gas generation during disposal, and are costly to produce, as they rely on unprocessed waste vinyl chloride wallpaper.
Innovation Solution
A manufacturing method that separates polyvinyl chloride from vinyl chloride wallpaper, using the resulting paper as a raw material to create a water absorbing material, reducing environmental impact and production costs by employing a multi-stage separation device to effectively dissociate polyvinyl chloride from the paper.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If waste vinyl chloride wallpaper is used as raw material without separation, then manufacturing cost is reduced, but environmental burden increases due to dioxin and chlorine gas generation
Solution Approach 1:
The invention extracts and removes polyvinyl chloride from waste vinyl chloride wallpaper through a separation process involving shredding, classification, and washing steps. This allows the paper component to be used as raw material while eliminating the harmful polyvinyl chloride that generates dioxin and chlorine gas during disposal, thus resolving the contradiction between cost reduction and environmental burden reduction
Solution Approach 2:
The invention discards the harmful polyvinyl chloride component from waste vinyl chloride wallpaper while recovering and utilizing the paper component as raw material for water-absorbing materials. This selective discarding and recovering approach enables both cost reduction through waste utilization and environmental burden reduction by eliminating toxic substances
2Object-generated harmful factors
If polyvinyl chloride is separated from vinyl chloride wallpaper, then environmental burden is reduced, but manufacturing process complexity increases
Solution Approach 1:
The separation process is divided into multiple sequential stages: shredding the wallpaper into small pieces, classifying by size and density to separate polyvinyl chloride from paper, and washing to remove remaining adhesive. This segmentation of the separation process makes the complex task manageable and enables effective removal of harmful substances
Solution Approach 2:
The invention uses water as an intermediary medium in the washing step to facilitate separation. Water helps remove residual polyvinyl chloride adhesive from the paper fibers without requiring complex chemical treatments, thus reducing environmental burden while keeping the process relatively simple
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 method reduces environmental burden by minimizing dioxin and chlorine gas generation during disposal and lowers production costs by utilizing recycled paper, while maintaining effective water absorption and retention capabilities.
Implementation Method 1
a separation device to separate a vinyl chloride wallpaper into a paper and a polyvinyl chloride
Implementation Method 2
a water absorbing material which absorbs liquid such as excrement of humans or animals
Implementation Method 3
contains paper obtained by separating polyvinyl chloride from vinyl chloride wallpaper
Data Source
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AI summary
A water absorbing material which can reduce burden on the environment in disposal and can be manufactured at low cost, and a manufacturing method thereof are provided. The water absorbing material 1 contains paper obtained by separating polyvinyl chloride from vinyl chloride wallpaper as a raw material.