TBEP Benzoate Ester Floor Coating Plasticizer Blend
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Solution Overview
Problem
Existing floor coating compositions face challenges with low temperature film formation and high phosphorus content, leading to issues like powdering and environmental contamination, as they require plasticizers that balance film formation and soil resistance while minimizing phosphorus usage.
Innovation Solution
Aqueous floor coating compositions using a blend of tributoxyethyl phosphate (TBEP) and benzoate esters, with a specific ratio of 40-60% TBEP, which improves leveling, gloss, and soil resistance while reducing phosphorus content and volatile organic compounds (VOCs).
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If TBEP is used as plasticizer to achieve good leveling and gloss, then film formation quality is improved, but phosphorus content increases causing environmental contamination
Solution Approach 1:
The patent changes the chemical composition parameters by replacing pure TBEP with a blend containing 40-60% TBEP and 40-60% benzoate esters. This parameter modification reduces phosphorus content while maintaining the functional properties of TBEP through the synergistic effect of the blend components.
Solution Approach 2:
The patent creates a composite plasticizer system by combining TBEP with benzoate esters in specific ratios. This composite approach allows the mixture to achieve the desired leveling and gloss properties while reducing the harmful phosphorus content through the contribution of phosphorus-free benzoate ester components.
2Reliability
If plasticizer amount is increased to improve film formation at low temperature, then film formation is improved, but soil resistance deteriorates
Solution Approach 1:
The patent optimizes the plasticizer composition parameters by selecting specific ratios of TBEP to benzoate esters (40-60% each). This parameter optimization allows achieving adequate film formation at low temperatures while the benzoate ester component specifically addresses soil resistance issues that arise with higher plasticizer content.
3Object-generated harmful factors
If phosphorus content is reduced to minimize environmental contamination, then environmental friendliness is improved, but film formation quality may deteriorate
Solution Approach 1:
The patent introduces benzoate esters as intermediary substances that mediate between the need for reduced phosphorus content and the requirement for good film formation. The benzoate esters act as co-plasticizers that compensate for the reduced TBEP content, maintaining film formation quality while enabling lower phosphorus levels.
Solution Approach 2:
The patent modifies the plasticizer composition parameters by incorporating 40-60% benzoate esters alongside reduced TBEP content. This parameter change ensures that even with lower phosphorus content, the film formation quality is maintained through the complementary plasticizing effects of the benzoate ester components.
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 TBEP/benzoate ester blend composition achieves superior soil resistance and retained gloss compared to TBEP alone, providing a more environmentally friendly and effective floor coating with reduced phosphorus content and VOCs, ensuring proper film formation and performance across various temperatures.
Implementation Method 1
A plasticizing agent is typically a compound or a mixture that can associate with the polymer and thereby modify the physical properties of the polymer or of the coating composition itself
Implementation Method 2
Coalescents, which volatilize during the drying process, are used to temporarily lower the MFT of a coating composition during the drying phase
Implementation Method 3
As a result of its hydrophobicity (solubility in water is 0.2%), TBEP resides on or inside the polymer particles in a wet composition
Data Source
AI summary
The invention provides an aqueous floor coating composition, comprising water, at least one polymer film forming agent, and a plasticizing agent, wherein at least a portion of the plasticizing agent is a synergistic combination of tributoxyethyl phosphate and a benzoate ester blend. Such compositions have reduced phosphorus content, yet retain the leveling and gloss of tributoxyethyl phosphate plasticizers and also exhibit improved soil resistance.