Low-Temperature Construction Adhesive Extrusion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional construction adhesives fail to maintain effective bonding and extrusion at low temperatures, particularly below -15°C, and often 'skin' or become unusable, limiting their application in cold conditions.
Innovation Solution
A solvent-based construction adhesive is developed with a specific composition and mixing process that includes a combination of solvents, resins, fillers, and additives such as kaolin, calcium carbonate, and fumed silica, allowing for efficient mixing and bonding at low temperatures, preventing agglomeration, and enabling extrusion even at -15°C.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional construction adhesives are used at low temperatures, then bonding strength may be maintained, but extrusion capability is lost and the adhesive skins or becomes unusable
Solution Approach 1:
The patent modifies the chemical composition parameters of the adhesive by incorporating specific solvents (heptane, acetone, N-hexane, toluene) in controlled proportions, and adding extrusion facilitators like calcium carbonate and titanium dioxide. These parameter changes enable the adhesive to maintain proper viscosity and extrusion properties at low temperatures down to -15°C while preventing skin formation
Solution Approach 2:
The invention creates a composite adhesive formulation combining multiple solvent types (petroleum-based and ketone-based), resin components, filler materials (calcium carbonate, titanium dioxide, kaolin), and functional additives. This composite structure provides synergistic effects that maintain both bonding performance and extrusion capability in cold conditions
2Productivity
If the adhesive is designed for fast setting, then productivity increases, but control over setting time and avoiding premature skinning becomes more difficult
Solution Approach 1:
The adhesive formulation enables a controlled progression through different stages: initial extrusion phase with proper flow characteristics, then gradual setting phase. The solvent composition and filler content are designed to provide this periodic action, allowing the adhesive to remain workable during application then set at a controlled rate without premature skinning
Solution Approach 2:
The patent uses specific filler materials (calcium carbonate, titanium dioxide, kaolin) and solvent combinations as intermediaries that delay premature setting and skin formation. These intermediaries maintain the adhesive in a workable state during extrusion and application, then allow controlled setting to proceed, bridging the gap between fast setting and operational control
3Temperature
If the adhesive formulation includes multiple components for low temperature performance, then extrusion at low temperature improves, but manufacturing complexity increases
Solution Approach 1:
The patent achieves multi-functionality within the adhesive formulation: the solvent combination (heptane, acetone, N-hexane, toluene) simultaneously provides low-temperature fluidity, proper drying rate, and skin prevention. The filler materials (calcium carbonate, titanium dioxide, kaolin) simultaneously provide structural support, extrusion facilitation, and skin formation prevention. This universal approach reduces the need for separate specialized 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 adhesive achieves fast setting, high green bond strength, and efficient extrusion at low temperatures, enhancing working efficiency and bonding performance compared to conventional adhesives, while maintaining adhesion on metals like stainless steel.
Implementation Method 1
adding the solvent 1 into a mixture to dissolve the mixture and to form a mixing solution 20
Implementation Method 2
using a three-shaft mixer to stir and blend the solvent 1, the filler, the mixing solution 20 and the additive to form a sticky quick drying adhesive 2
Implementation Method 3
quick drying adhesive
Data Source
AI summary
A method includes preparing a solvent, adding the solvent into a mixture to dissolve the mixture and to form a mixing solution, adding a filler and an additive into the mixing solution, and using a three-shaft mixer to stir and blend the solvent, the filler, the mixing solution and the additive to form a sticky quick drying adhesive. The temperature is controlled under 40° C. in the above steps. The solvent includes heptane, acetone, N-hexane and toluene which are mixed in a predetermined weight proportion. The mixture includes C9 hydrocarbon resin, C5 and C9 co-polymer hydrocarbon resin and styrene-butadiene. The filler includes calcined kaolin, calcium carbonate, anti-oxidant and fumed silica. The additive includes monoethylene glycol. Thus, the quick drying adhesive is extruded outward at a low temperature state (−15° C.).