Acetylene Glycol Coating for Water Resistance and Adhesion
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Solution Overview
Problem
Current protective coatings for building materials and automobiles face challenges with inferior water resistance and adhesion, particularly in high humidity conditions, and lack effective rust preventive properties without using environmentally harmful pigments.
Innovation Solution
A protective coating composition is developed, incorporating a mixture of acetylene glycol surfactants and polyoxy(ethylene-propylene) block polymers with specific molecular weight ranges, blended with synthetic resins and fillers, to enhance adhesion and water resistance for building materials and provide excellent rust preventive performance for automobiles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If water-borne resin is used to reduce VOC, then environmental friendliness is improved, but initial water resistance deteriorates
Solution Approach 1:
The invention uses a composite surfactant system combining acetylene glycol and polyoxy(ethylene-propylene) block polymer to achieve both water resistance and environmental friendliness in water-borne coatings, resolving the contradiction between VOC reduction and water resistance
Solution Approach 2:
The invention changes the chemical composition parameters of the surfactant system by introducing specific acetylene glycol compounds with controlled molecular weights and ethoxylate ratios, achieving optimal water resistance while maintaining water-borne formulation
2Strength
If conventional surfactants are used to improve adhesion, then adhesion is improved, but water resistance deteriorates
Solution Approach 1:
The invention creates a composite surfactant system where acetylene glycol provides adhesion promotion while polyoxy(ethylene-propylene) block polymer provides water resistance, achieving both functions simultaneously rather than sacrificing one for the other
Solution Approach 2:
The invention assigns different functional roles to different components of the surfactant system: acetylene glycol targets adhesion at the coating-substrate interface while the block polymer targets water resistance at the coating-exposure interface
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 coating exhibits excellent corrosion resistance, adhesion, and rust preventive properties, maintaining performance even with oily substances present, and demonstrates improved water resistance and adhesion without the drawbacks of high cost or environmental hazards.
Implementation Method 1
The composition contains a binder resin, surfactant (such as dialkyl sulfo-succinic acid salts, polyoxyethylene alkylaryl ethers, reactive surfactants or polymer surfactants) and an acetylene alcohol or glycol compound
Implementation Method 2
The protective coating is required to have various different properties depending on the intended application of the coating. For example, a protective coating used as a building material or building exterior material is required to exhibit good adhesion and corrosion resistance
Implementation Method 3
a protective coating which is effective for use in the applications such as building materials, building exterior materials, and automobiles, and which exhibits excellent adhesion and water resistance
Data Source
AI summary
A protective coating is provided. This protective coating comprises a synthetic resin solid content (A); and a mixture of (B-1) acetylene glycol represented by the following general formula (1): and/or an ethoxylated derivative of the acetylene glycol represented by the following general formula (2): and (B-2) at least one member selected from polyoxy(ethylene - propylene) block polymers represented by the following formula (3): O(C2H4O)w(C3H6O)x(C2H4O)y(CH6O)zH (3).