Antistatic Polyester Masterbatch High Additive Loading
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Solution Overview
Problem
Current antistatic masterbatches and compounds in the plastics industry fail to meet the requirements of high additive loading, adjustable surface resistance, good miscibility, transparency, and minimal impact on mechanical and thermal properties of final articles, such as packaging and automotive components.
Innovation Solution
A composition comprising alkyl sulfonates, fatty acid monoglycerides, and polyethylene glycol combined with thermoplastic polyester, which can be formulated as masterbatches or compounds, achieving specific electrical surface resistance and charge decay times while maintaining low haze levels and preserving mechanical properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If high concentration of antistatic additives is used to achieve high loading, then surface resistance control is improved, but miscibility and compatibility with the polymer deteriorate
Solution Approach 1:
The patent employs a specially designed masterbatch formulation that acts as an intermediary carrier system. This masterbatch contains the antistatic additives pre-dispersed in a compatible matrix, allowing high additive loading (10-90 wt%) while maintaining miscibility. The masterbatch formulation serves as a mediator between the additive and the final polymer matrix, ensuring uniform distribution and compatibility even at high concentrations.
Solution Approach 2:
The invention uses composite material structures by combining multiple components in the masterbatch formulation. The masterbatch itself is a composite system containing the antistatic additive, a carrier polymer, and additional compatibilizers or dispersants. This composite approach allows the additive to be loaded at high concentrations while the composite structure maintains compatibility with the final application polymer.
2Quantity of substance
If high concentration of antistatic additives is used to achieve high loading, then surface resistance control is improved, but transparency of the final product deteriorates
Solution Approach 1:
The masterbatch formulation acts as an intermediary that controls the dispersion and distribution of antistatic additives. By using this intermediary system, the patent achieves high additive loading (10-90 wt%) while maintaining product transparency. The masterbatch ensures uniform distribution that prevents aggregation and light scattering, thereby preserving optical clarity even at high concentrations.
3Quantity of substance
If high concentration of antistatic additives is used to achieve high loading, then surface resistance control is improved, but mechanical and thermal properties of the final article deteriorate
Solution Approach 1:
The masterbatch serves as an intermediary carrier that delivers high concentrations of antistatic additives (10-90 wt%) without compromising the mechanical and thermal properties of the final article. The masterbatch formulation includes compatible carriers and stabilizers that prevent additive aggregation and maintain the structural integrity of the final product, ensuring high additive loading does not adversely affect strength or thermal resistance.
4Reliability
If conventional antistatic additives are used to achieve surface resistance control, then electrostatic protection is improved, but charge decay time becomes too slow
Solution Approach 1:
The patent changes the chemical and physical parameters of the antistatic system by using a specially formulated masterbatch with controlled additive concentration (10-90 wt%). This parameter change enables the system to achieve both reliable electrostatic protection and rapid charge decay. The optimized formulation adjusts the balance between conductive additive content and matrix compatibility to optimize charge decay performance.
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 composition achieves a low surface resistance, rapid charge decay, and minimal haze in finished products, suitable for electrostatic-free packaging and automotive applications with improved mechanical and thermal properties.
Implementation Method 1
the compositions being in the form of masterbatches or Compounds... achieving specific electrical surface resistance and charge decay times
Implementation Method 2
antistatic additives... achieving low surface resistance, rapid charge decay
Implementation Method 3
good miscibility and compatibility with the polymer of the final application
Implementation Method 4
thermoplastic polyester... preserving mechanical properties
Data Source
AI summary
The invention relates to compositions comprising certain thermoplastic polyesters, and antistatic additives, the compositions being in the form of masterbatches, or Compounds, and their use for producing antistatic polyester single and multilayer films sheets boards and articles made of antistatic Compounds.