Glassy Carbon Mold Production via Resin Replication
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Solution Overview
Problem
Conventional methods for producing glassy carbon molds with micro- and nano-patterns face challenges such as high production costs, shape deformations, and poor surface quality due to foams and cracks, especially when forming nano-patterns with complex shapes, and existing techniques like magnetorheological fluid grinding are unsuitable for nano-patterns.
Innovation Solution
A method involving a mixture of thermosetting resin, curing agent, and viscosity-controlling solvent is used to form a glassy carbon mold by creating a pattern portion as a thin film on a substrate, curing, and then carbonizing, ensuring the substrate and pattern portions have matching contraction characteristics to minimize defects and achieve superior surface quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If magnetorheological fluid grinding is used to improve surface quality, then surface quality is improved, but deformations are generated and it is unsuitable for nano-patterns with complicated shapes
Solution Approach 1:
The patent extracts and removes the problematic foam components from the thermosetting resin composition through specific formulation and processing methods, preventing foam formation during curing while maintaining surface quality without requiring additional grinding operations that cause deformation
Solution Approach 2:
The patent creates a master pattern with the desired micro- and nano-structures and uses it to replicate the pattern onto the thermosetting resin mold, allowing precise pattern transfer without direct mechanical working that would cause deformation
2Shape
If mechanical working based on grinding is used to form micro- and nano-patterns, then mold shape is formed, but working costs exponentially increase and minimum diameter working is limited
Solution Approach 1:
The patent uses a master pattern as a template to replicate micro- and nano-structures onto the thermosetting resin mold through molding, avoiding expensive mechanical grinding operations while achieving precise pattern formation at lower costs
Solution Approach 2:
The patent changes the approach from mechanical parameter-based working (grinding, machining) to chemical and thermal parameters (curing, carbonization) that enable pattern formation without exponential cost increase
3Strength
If integrated form glassy carbon mold is produced with predetermined thickness, then mold strength is improved, but foams and cracks are generated during production
Solution Approach 1:
The patent specifically targets and removes foam components through controlled formulation and processing, preventing defect formation while maintaining the integrated structure and strength of the mold
Solution Approach 2:
The patent optimizes curing parameters and composition ratios to prevent crack formation during the curing and carbonization processes, maintaining both strength and surface quality in the integrated mold structure
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 enables the production of glassy carbon molds with few cracks and superior surface quality, allowing for low-cost, high-precision formation of glass or metal substrates with fine patterns, suitable for applications requiring high temperature and pressure stability.
Implementation Method 1
a mixture containing a thermosetting resin, a curing agent, and a viscosity-controlling solvent is used to form a glassy carbon mold by creating a pattern portion as a thin film on a substrate, curing, and then carbonizing
Implementation Method 2
carbonizing the substrate, and the cured thermosetting resin pattern portion present thereon
Implementation Method 3
a mixture containing a thermosetting resin, a curing agent, and a viscosity-controlling solvent
Data Source
AI summary
The present invention relates to a production method for a glassy carbon mold, and, more specifically, relates to a production method for a glassy carbon mold including the steps of: placing a mixture having a thermosetting resin, a curing agent, and a viscosity adjusting solvent between a thermosetting resin substrate and a master pattern formed by a micro-nano process; pressing either the master pattern or the thermosetting resin substrate and applying heat to form a cured thermosetting resin pattern part on the substrate; and removing the master pattern, and subjecting the substrate and the cured thermosetting resin pattern.