Halogen-Free Polyester Floor Tile Resin Composition
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional PVC-based plastic floor tiles contain halogens and heavy metals, posing environmental and health hazards, while polyolefin resin and polyester PET-based tiles face issues with processing difficulties, UV deterioration, and poor weatherability, leading to subpar performance and recyclability.
Innovation Solution
A modified polyester resin composition with a low-crystallization polyester resin, copolyesters, and additives like aromatic carboxylates, phosphates, lubricants, and fillers, which enhances processability, thermal resistance, and environmental friendliness, allowing for production using existing PVC-based tile equipment and processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If PVC-based plastic floor tiles are used, then good processability and adhesion are achieved, but halogen and heavy metal content increases causing environmental harm
Solution Approach 1:
The patent changes the chemical composition parameters by replacing PVC resin with polyolefin resin (polyethylene or polypropylene) as the base material, and modifies physical parameters through adding specific amounts of modifiers (5-20 parts by weight per 100 parts resin), lubricants, and processing aids to achieve both environmental friendliness and processability
Solution Approach 2:
The patent creates a composite material system combining polyolefin resin with multiple additives including modifiers, lubricants, processing aids, and stabilizers in specific proportions to achieve the desired balance between environmental compatibility and manufacturing performance
2Object-generated harmful factors
If polyolefin resin floor tiles are used, then environmental friendliness improves, but processing difficulty and UV deterioration increase
Solution Approach 1:
The patent introduces lubricants (such as stearic acid, calcium stearate, or polyethylene wax) as intermediary substances that facilitate the processing of polyolefin resin by reducing friction and improving flow characteristics during molding, thereby resolving the processing difficulty while maintaining environmental friendliness
Solution Approach 2:
The patent modifies the material parameters by adding specific concentrations of UV stabilizers and processing aids to the polyolefin resin formulation, changing its physical and chemical properties to improve both processability and UV resistance without compromising environmental compatibility
3Ease of manufacture
If polyester PET resin is used, then adhesion and printability improve, but crystallization speed is slow causing production cycle extension
Solution Approach 1:
The patent changes the thermal and crystallization parameters of polyester PET resin by adding specific nucleating agents and processing aids that increase crystallization speed and reduce melting temperature, thereby shortening the production cycle while maintaining adhesion and printability properties
4Strength
If polyester PET resin with high crystallization is used, then mechanical strength improves, but fluidity when heated decreases causing shaping difficulty
Solution Approach 1:
The patent modifies the thermal parameters by adding lubricants and processing aids that reduce the melting temperature and improve fluidity of the polyester PET resin when heated, enabling easier shaping and molding while the crystallization promoters maintain the mechanical strength of the final product
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 modified polyester resin composition results in halogen-free, heavy metal-free tiles with improved resistance to wear, tensile strength, solvents, and lit cigarettes, offering better environmental sustainability and performance compared to conventional tiles.
Implementation Method 1
conventional polyester PET resin due to having high crystallization displays high fluidity when heated and melted
Implementation Method 2
during the process of heating lamination
Implementation Method 3
laminated finished products
Data Source
AI summary
A modified polyester resin composition comprises a combination of a PET polyester, a PCT polyester, a CHDM modified copolyester comprising PCTA, PCTG or PETG, and a modified polymer at least comprising TPU or EPDM, wherein the modified polymer accounts for 3-25 wt % and the rest accounts for 97-75 wt %, based on the total weight of the resin; and the modified polyester resin composition is suited for use in a halogen-free, heavy metal-free, and volatile organic compound-free polyester-based plastic floor tile excellent in higher resistance to wear and tear, better tensile strength, more preferable resistance to both lit cigarette e and solvents, and particularly being friendliness to environment and not hazardous to health.