Copolymerized Polyester Resin Sheet for Window Glass Substitution
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Solution Overview
Problem
Existing thermoplastic materials lack superior heat resistance, impact strength, and flexural strength, making them unsuitable as substitutes for glass in applications like window glass, partitions, and decorative panels, and they often require lengthy processing times or generate undesirable byproducts during production.
Innovation Solution
A thermoplastic molded product using a copolymerized polyester resin sheet with 1,4-cyclohexanedimethanol and isosorbide, which provides superior heat resistance and impact strength, allowing for easy lamination of decorative materials and suitable for multi-layered structures, enhancing its durability and versatility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If glass is used as a window covering material or partition, then transparency and decorative effect are achieved, but weight and fragility increase, making transportation and assembly difficult
Solution Approach 1:
The invention changes the material parameter from glass to copolymerized polyester resin, maintaining optical transparency while fundamentally altering physical properties such as weight and impact resistance. The resin can be molded into various forms and laminated with decorative materials to achieve the desired aesthetic effects without the drawbacks of glass.
Solution Approach 2:
The invention uses a composite structure consisting of copolymerized polyester resin sheets laminated with decorative materials such as polymer films, paper, fiber fabrics, metal wires, or meshes. This composite approach combines the transparency and light weight of the resin with the aesthetic and functional properties of the decorative materials, creating a material that replaces glass without its fragility and weight issues.
2Illumination intensity
If polycarbonate is used as a glass substitute, then transparency is achieved, but processing time increases due to necessary drying process, increasing production cost
Solution Approach 1:
The invention changes the material from polycarbonate to copolymerized polyester resin, which has different processing characteristics. The polyester resin does not require the lengthy drying process that polycarbonate demands, thereby reducing processing time and production costs while maintaining transparency and optical properties suitable for window coverings and partitions.
3Ease of manufacture
If polyester resin is used as a glass substitute, then transparency and ease of molding are achieved, but flexural strength decreases, making it easy to bend and unsuitable for construction use
Solution Approach 1:
The invention creates a composite material system where copolymerized polyester resin is laminated with decorative materials including polymer films, paper, fiber fabrics, and metal wires or meshes. This composite structure significantly enhances the flexural strength and rigidity of the material, making it suitable for construction applications while retaining the ease of molding characteristics of polyester resin.
Solution Approach 2:
The invention modifies the polyester resin by copolymerizing it with specific diol components (1,4-cyclohexanedimethanol and isosorbide) to create a copolymerized polyester resin with improved mechanical properties. This chemical modification changes the molecular structure to achieve superior flexural strength and impact resistance while maintaining processability.
4Ease of manufacture
If polyester resin is used for indoor applications, then ease of molding is achieved, but heat resistance is insufficient, restricting its use to indoor environments only
Solution Approach 1:
The invention changes the chemical composition of the polyester resin by copolymerizing it with 1,4-cyclohowanedimethanol and isosorbide. This chemical modification raises the glass transition temperature and improves heat resistance, allowing the material to be used in outdoor environments and applications requiring higher temperature resistance while maintaining the ease of molding characteristics.
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 copolymerized polyester resin sheet with 1,4-cyclohexanedimethanol and isosorbide offers improved heat resistance, impact strength, and flexural strength, enabling the thermoplastic molded product to be used effectively as a window glass substitute and decorative panel with enhanced durability and reduced production costs.
Implementation Method 1
The decorative material can be easily laminated on the copolymerized polyester resin sheet by applying the heat and pressure thereto.
Implementation Method 2
The decorative material can be easily laminated on the copolymerized polyester resin sheet by applying the heat and pressure thereto.
Data Source
AI summary
A thermoplastic molded product including a decorative material having superior heat resistance, impact strength and flexural strength is disclosed. The thermoplastic molded product is useful for a window glass substitute, a partition, a decorative panel, a decorative film, and so on. The thermoplastic molded product comprises a copolymerized polyester resin sheet made of a copolymerized polyester resin; and at least one decorative material laminated on the copolymerized polyester resin sheet, the lamination being performed by applying heat and pressure to the copolymerized polyester resin sheet and the decorative material. The copolymerized polyester resin has an alternating structure of acid moieties which are derived from acid components and diol moieties which are derived from diol components, and the acid components comprise terephthalic acid, and the diol components comprise (i) 5-99 mol% of 1,4-cyclohexanedimethanol and (ii) 1 - 60 mol% of isosorbide with respect to the total diol components.