Anti-propylene mask and method for preparation thereof
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Solution Overview
Problem
Existing methods for preventing propylene inhalation through respiratory organs are either high-temperature, high-pressure catalytic combustion or large-scale equipment-based, which are not suitable for human safety and convenience.
Innovation Solution
A lightweight mask with a fullerene/nano titanium dioxide spunbond layer, combined with an antistatic non-woven fabric layer, utilizing photocatalytic oxidation under visible light or LED irradiation to oxidize propylene, and an antistatic function to prevent static electricity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If catalytic combustion is used to remove propylene, then propylene removal efficiency is improved, but operating conditions become complex (high temperature and high pressure required)
Solution Approach 1:
The patent changes the operating parameters from high temperature and high pressure (catalytic combustion) to ambient temperature and pressure by using photocatalytic oxidation with titanium dioxide nanoparticles activated by visible light or LED irradiation, thus removing propylene efficiently under simple conditions
Solution Approach 2:
The patent replaces the thermal-mechanical catalytic combustion system with a photochemical system using titanium dioxide nanoparticles activated by light, substituting high-temperature mechanical energy with optical energy for propylene removal
2Productivity
If chemical and physical adsorption methods are used to control propylene diffusion, then propylene removal is achieved, but equipment size becomes large and portability is reduced
Solution Approach 1:
The patent uses titanium dioxide nanoparticles with high surface area to volume ratio that provide extensive active sites for photocatalytic oxidation of propylene, achieving high removal efficiency in a compact form factor that can be integrated into wearable masks
Solution Approach 2:
The patent creates a composite material system combining titanium dioxide nanoparticles with matrix resin to form a functional layer that integrates propylene removal capability into a lightweight, portable mask structure
3Reliability
If traditional protective measures are used against propylene inhalation, then propylene protection is achieved, but ease of use and convenience are reduced
Solution Approach 1:
The photocatalytic mask operates autonomously using ambient visible light or LED irradiation to activate titanium dioxide nanoparticles for continuous propylene degradation, eliminating the need for external power sources, heating systems, or complex control mechanisms, thus improving ease of use while maintaining protection effectiveness
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 mask effectively prevents propylene inhalation with simple, convenient use, providing efficient photocatalytic oxidation and antistatic protection, suitable for propylene production workshops.
Implementation Method 1
utilizing photocatalytic oxidation under visible light or LED irradiation to oxidize propylene
Implementation Method 2
an antistatic function to prevent static electricity
Data Source
AI summary
An anti-propylene mask and method for preparation thereof is provided; the anti-propylene mask includes a fiber cloth contact layer, an antistatic non-woven fabric layer and a fullerene/nano titanium dioxide spunbond layer which are arranged in sequence; the fullerene/nano titanium dioxide spunbond layer is made by spun-bonding the modified resin material into a fiber web; the raw materials of modified resin materials include matrix resin, carboxylated fullerene derivatives, nano titanium dioxide, a lubricant, and a coupling agent; the modified resin material is prepared by following method: the carboxylated fullerene derivative is mixed and reacted with the nano titanium dioxide to prepare the carboxylated fullerene derivative-modified nano titanium dioxide, which is then blended and extruded with the remaining components in the raw material, and thus prepared. The mask can prevent propylene from entering the human body through the human respiratory organs and has a good anti-propylene effect.