One-Piece Thermoset Coating for Seamless Radiation Shielding
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Solution Overview
Problem
Conventional radiation protection devices using thermoplastic films for encapsulation suffer from seam vulnerabilities, mechanical stress sensitivity, air inclusion issues leading to premature aging, and complex production processes, which compromise the integrity and longevity of radiation shielding elements.
Innovation Solution
A one-piece encapsulation method using thermosetting solvent-free polymers with Shore A hardness of 50 to 90, applied via a multi-component high-pressure device, forms a seamless coating directly on radiation shielding materials, eliminating seams and ensuring airtightness without requiring surface cleaning or pretreatment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If thermoplastic films are used for casing radiation protection elements, then the casing can be produced with simple materials, but the connecting points (weld seams) are sensitive to mechanical stress and can open, reducing reliability
Solution Approach 1:
The patent merges multiple film pieces into a single continuous thermoplastic casing that fully encloses the radiation protection element. This eliminates the need for separate connecting points and weld seams by creating an integrated one-piece structure that wraps around the entire element, thereby resolving the reliability issue while maintaining ease of manufacture.
2Reliability
If thermoplastic films are joined by thermal welding to ensure airtightness, then hermetic sealing is achieved, but the weld seams become sensitive to mechanical stress and require complex production care to avoid particles and wrinkles
Solution Approach 1:
The invention creates a single continuous thermoplastic casing that encloses the radiation protection element without requiring multiple joined film pieces. This merging approach eliminates weld seams entirely, achieving airtightness through the continuous nature of the single-piece construction rather than through joining operations, thereby significantly reducing production complexity.
3Adaptability or versatility
If radiation protection elements are made flexible and adaptable, then they can adapt to different work requirements and room layouts, but conventional shielding methods like solid walls remain inflexible
Solution Approach 1:
The patent employs a flexible thermoplastic casing that can be bent and shaped to create adaptable radiation protection configurations such as curtains or movable barriers. This flexible shell maintains shielding effectiveness through its material composition while enabling adaptation to different room layouts and work requirements, resolving the contradiction between flexibility and shielding stability.
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 seamless coating provides enhanced mechanical durability, resistance to oxidation, and extended service life, while minimizing contamination risks and simplifying manufacturing, thereby improving the reliability and longevity of radiation protection elements.
Implementation Method 1
thermosetting polymer(s) with a Shore A hardness (measured according to DIN 53505) in the range from 50 to 90
Data Source
AI summary
Use of a one-piece coating made of thermosetting polymer for protecting radiation shielding elements, which consist of at least one radiation shielding material formed from at least one elastomer and at least one heavy chemical element - in ionic or elemental form - wherein the chemical element is selected from lead (Pb), bismuth (Bi), tungsten (T), tin (Sn), antimony (Sb) and barium (Ba), wherein the Shore A hardness of the coating is in the range of 50-90, methods for producing such coatings and the coated radiation shielding elements and devices made of radiation shielding material.