Foam Tape Surfactant Composition for Bubble Stability and Adhesion
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Solution Overview
Problem
Existing foam tapes face challenges with bubble stability and adhesion due to high costs and environmental regulations of fluorine surfactants, and silicone surfactants often deteriorate adhesion due to high molecular weight siloxane groups and low molecular weight mixing components.
Innovation Solution
A foam tape base material composition incorporating 60% to 90% siloxane polymer and 10% to 40% non-siloxane polymer as a surfactant, along with an acrylic monomer, radical initiator, and porous filler, which enhances bubble stability and maintains adhesion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If fluorine surfactant is used to prepare acrylic foam tape, then bubble stability is improved, but cost increases and environmental compliance becomes difficult
Solution Approach 1:
The patent replaces expensive fluorine surfactants with a more economical silicone-based surfactant system that provides comparable bubble stability at lower cost and without environmental compliance issues
Solution Approach 2:
The patent modifies the surfactant composition parameters by using silicone polymers with specific molecular weights (1,000-100,000 g/mol) and controlling the ratio of siloxane groups to achieve optimal bubble stability without requiring fluorine-based compounds
2Stability of the object's composition
If high molecular weight polysiloxane is used in silicone surfactant, then bubble stability is improved, but adhesion deteriorates
Solution Approach 1:
The patent optimizes the molecular weight parameter of polysiloxane within the range of 1,000-100,000 g/mol and controls the siloxane group content to balance bubble stability and adhesion performance
Solution Approach 2:
The patent creates a composite surfactant system combining polysiloxane with specific acrylic monomers and crosslinkers to achieve both bubble stability and adhesion through synergistic interactions between components
3Ease of manufacture
If low molecular weight mixing components are included in silicone surfactant, then processing is improved, but adhesion deteriorates
Solution Approach 1:
The patent carefully controls the molecular weight distribution and composition ratios of mixing components to maintain processability while minimizing negative effects on adhesion
Solution Approach 2:
The patent creates different functional zones within the foam tape structure, with the surfactant concentrating at bubble interfaces for stability while maintaining appropriate adhesion properties in the bulk adhesive layer
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 excellent bubble stability and maintains adhesion, outperforming existing foam tapes by reducing the impact of non-siloxane polymers on the surface and improving peel strength across various substrates.
Implementation Method 1
the surfactant includes 60% by weight (wt%) to 90 wt% of a siloxane polymer, and 10 wt% to 40 wt% of a non-siloxane polymer
Implementation Method 2
an acrylic monomer, a radical initiator, a cross-linking agent
Data Source
Figure 1~2
AI summary
Disclosed are a composition for a foam tape base material having high bubble stability and superior peel strength. The composition for the foam tape according to the present invention comprises an acrylic monomer, a radical initiator, a cross-linking agent, a porous filler, and a surfactant, wherein the surfactant comprises 60 to 90 wt% of a siloxane polymer and 10 to 40 wt% of a non-siloxane polymer, thereby providing the advantage of manufacturing the foam tape manufactured using the composition that is economical, does not lose adhesive force, and has superior bubble stability compared to existing foam tapes.