Flame Retardant Adhesive Bubble Stability via Copolymer Composition
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Solution Overview
Problem
Conventional adhesive compositions with bubbles face challenges in maintaining stability across varying temperatures, leading to deteriorated performance in both cold and hot conditions.
Innovation Solution
A flame retardant adhesive composition incorporating a copolymer of polar functional group-containing monomers and (meth)acrylic acid esters, combined with thermally conductive inorganic fillers and hollow glass fillers or bubbles, which are uniformly dispersed to enhance stability and flame retardancy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If viscosity is increased to secure bubble stability, then bubble stability improves, but the adhesive composition exhibits deteriorated bubble stability when temperature increases
Solution Approach 1:
The invention changes the chemical composition parameters of the adhesive by incorporating specific polar functional group-containing monomers (10-50 parts by weight per 100 parts by weight of (meth)acrylic acid ester monomer) and controlling the ratio of hydrophilic to hydrophobic components. This compositional parameter adjustment enables the adhesive to maintain bubble stability across a wide temperature range without requiring high viscosity
Solution Approach 2:
The invention uses a composite adhesive system combining (meth)acrylic acid ester monomers with polar functional group-containing monomers, thermally conductive inorganic fillers, and hollow glass fillers or bubbles. This composite material approach creates synergistic effects where the polar monomers provide temperature-responsive stability while the inorganic fillers enhance thermal conductivity and structural integrity, allowing the adhesive to maintain performance across varying temperatures
2Reliability
If acrylic acid is added to improve adhesion, then adhesive performance improves, but bubble stability deteriorates in high temperature conditions
Solution Approach 1:
The invention optimizes the concentration and type of polar functional groups in the adhesive composition, specifying 10-50 parts by weight of polar functional group-containing monomer per 100 parts by weight of (meth)acrylic acid ester monomer. This precise parameter control ensures sufficient adhesion performance while preventing excessive bubble instability that would occur with higher acrylic acid content
Solution Approach 2:
The invention introduces thermally conductive inorganic fillers (50-300 parts by weight per 100 parts by weight of (meth)acrylic acid ester monomer) that locally enhance heat dissipation capacity within the adhesive matrix. This local thermal management prevents hot spots that would otherwise cause bubble instability, allowing the use of polar monomers for adhesion without compromising bubble stability at high temperatures
3Object-affected harmful factors
If hollow glass fillers or bubbles are added to improve flame retardancy, then flame retardancy improves, but bubble stability deteriorates due to floating and bursting
Solution Approach 1:
The invention adjusts the density and surface properties of hollow glass fillers or bubbles by controlling their size distribution and surface treatment, incorporating them into an adhesive matrix with optimized polar monomer content (10-50 parts by weight per 100 parts by weight of (meth)acrylic acid ester monomer). This parameter optimization ensures that the hollow fillers remain stably dispersed without floating or bursting, while still providing flame retardancy
Solution Approach 2:
The invention creates a composite system where thermally conductive inorganic fillers (50-300 parts by weight per 100 parts by weight of (meth)acrylic acid ester monomer) form a thermal management network that surrounds and stabilizes hollow glass fillers or bubbles. This composite structure prevents temperature-induced bubble instability while maintaining flame retardancy, as the thermally conductive matrix evenly distributes heat and prevents localized overheating that would cause bubble bursting
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 improved bubble stability and flame retardancy, allowing the adhesive to maintain performance regardless of temperature and preventing hollow glass fillers or bubbles from bursting or floating, thus ensuring consistent adhesion and safety.
Implementation Method 1
thermally conductive inorganic fillers
Implementation Method 2
a copolymer in which 10 parts by weight to 50 parts by weight of a polar functional group-containing monomer is polymerized based on 100 parts by weight of a (meth)acrylic acid ester monomer
Data Source
AI summary
Provided is an adhesive agent composition comprising: a copolymer in which a polar functional group-containing monomer is polymerized by the content ratio of 10 weight parts to 50 weight parts with respect to 100 weight parts of a (meth)acrylic acid ester-based monomer; thermally conductive inorganic fillers; and a hollow glass filler or gas bubbles. Also provided is a method for preparing the adhesive agent composition, comprising the steps of: preparing a copolymer by polymerizing a polar functional group-containing monomer by the content ratio of 10 weight parts to 50 weight parts with respect to 100 weight parts of a (meth)acrylic acid ester-based monomer; adding thermally conductive inorganic fillers, a surface-active agent, a photoinitiator, and a photocuring agent to the copolymer to prepare a mixture; and adding a hollow glass filler or injecting gas bubbles into the mixture.