PET Surface Modification for Nicotine Delivery Barrier
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Solution Overview
Problem
The high cost of the modified acrylonitrile-methyl acrylate copolymer used in nicotine inhalation devices poses a challenge for developing cost-effective smoking cessation aids, as it is expensive and limits the scalability and sustainability of nicotine vapor delivery systems.
Innovation Solution
Surface modification of polyethylene terephthalate (PET) with Inorganic Oxides or Amorphous Carbon coatings enhances oxygen and water vapor impermeability, providing a cost-effective alternative by using plasma coating techniques such as PECVD or PVD, allowing for efficient and scalable production of nicotine inhalation devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the modified acrylonitrile-methyl acrylate copolymer is used for the cylinder and sealing layers, then the barrier properties and product performance are improved, but the production cost increases significantly
Solution Approach 1:
The patent replaces the expensive modified acrylonitrile-methyl acrylate copolymer with cost-effective materials such as polyethylene terephthalate (PET) or polyolefin for the cylinder and sealing layers. This substitution maintains the necessary barrier properties while significantly reducing material costs, making the nicotine inhalation device more economically viable for mass production.
Solution Approach 2:
The patent employs composite material structures where the cylinder is made from base polymers like PET or polyolefin, potentially combined with coating layers or additives that provide the necessary barrier properties. This composite approach allows the system to achieve reliable barrier performance without relying on expensive single-material solutions, thereby reducing overall production costs.
2Reliability
If the modified acrylonitrile-methyl acrylate copolymer is used for sealing layers, then the sealing performance and product reliability are improved, but the manufacturing cost increases
Solution Approach 1:
The patent substitutes the expensive modified acrylonitrile-methyl acrylate copolymer with cheaper alternative materials such as polyethylene terephthalate (PET) or polyolefin for the sealing layers. These alternative materials provide sufficient sealing performance at a fraction of the cost, enabling economical mass production while maintaining product reliability.
Solution Approach 2:
The patent modifies the parameters of the sealing layer materials by adjusting composition, thickness, or adding functional additives to enhance sealing performance. By optimizing these parameters, the patent achieves reliable sealing with cost-effective materials, eliminating the need for expensive specialized polymers while maintaining product integrity.
3Reliability
If surface modification with Inorganic Oxides or Amorphous Carbon coatings is applied to PET, then the oxygen and water vapor impermeability is improved, but the manufacturing complexity increases
Solution Approach 1:
The patent applies surface modification techniques to PET materials by controlling parameters such as coating thickness, composition, and deposition method. By optimizing these parameters, the patent achieves the desired gas and vapor barrier properties with a manageable manufacturing process, balancing performance improvement with process complexity.
Solution Approach 2:
The patent utilizes the inherent porous structure of PET materials and modifies it through surface treatment or coating applications. This approach allows the material to maintain its base properties while gaining enhanced barrier characteristics through controlled porosity modification, achieving gas and vapor impermeability without requiring completely dense materials.
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 surface modification of PET with Inorganic Oxides or Amorphous Carbon coatings significantly reduces production costs while maintaining effective barrier properties, ensuring a sustainable and cost-effective nicotine delivery system that meets performance standards, thereby aiding smoking cessation.
Implementation Method 1
plasma coating techniques such as PECVD or PVD
Implementation Method 2
plasma coating techniques such as PECVD or PVD
Data Source
AI summary
The present invention relates to a nicotine inhaling device and a method for making the same. Such device allows a user to ingest nicotine vapours orally and it is primarily intended to be used as a smoking cessation aid.