Puncture-Sealing Agent Mixing Process for Gelification Prevention
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Solution Overview
Problem
Existing methods for manufacturing puncture-sealing agents struggle with productivity due to gelification caused by rubber latex agglomerates, which destabilizes the solution and reduces the effectiveness of the sealing agent.
Innovation Solution
A method involving a first mixing process of antifreeze liquid with water, a second process of dropwise addition of the mixture into rubber latex with increasing stirring speed, and a third process of mixing with a tackifier, effectively preventing gelification and enhancing productivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If rubber latex is mixed with antifreeze liquid and water using conventional mixing methods, then the puncture-sealing agent can be manufactured, but rubber particles agglomerate and the solution changes to a cream or gel state, causing destabilization
Solution Approach 1:
The patent applies preliminary action by preparing the antifreeze liquid and water mixture before adding it to the rubber latex. This pre-mixing step ensures that the aqueous phase is properly prepared, which helps prevent rubber particle agglomeration during the subsequent mixing process, thereby maintaining solution stability while enabling efficient manufacturing.
Solution Approach 2:
The patent employs dynamics by controlling the mixing process parameters such as stirring speed and addition rate. By dynamically adjusting these parameters during manufacturing, the process prevents rubber latex agglomeration and gelification, ensuring both product stability and manufacturing productivity are achieved simultaneously.
2Productivity
If mixing speed is increased to improve productivity, then manufacturing efficiency increases, but rubber latex agglomerates form more readily, causing gelification
Solution Approach 1:
The patent applies preliminary action by pre-mixing the antifreeze liquid with water before introducing it to the rubber latex. This preparation step creates a more favorable mixing environment that allows for higher mixing speeds without causing rubber latex agglomeration, thus enabling increased productivity while maintaining product stability.
Solution Approach 2:
The patent employs parameter changes by optimizing the composition ratio of antifreeze liquid to water, and by controlling the addition rate and mixing speed parameters. These parameter adjustments prevent rubber latex agglomeration even at higher mixing speeds, allowing the process to achieve both high productivity and product stability.
3Ease of manufacture
If conventional mixing methods are used to manufacture puncture-sealing agent, then the basic components can be combined, but the solution becomes unstable due to rubber particle agglomeration and gelification
Solution Approach 1:
The patent applies preliminary action by preparing the antifreeze liquid and water mixture in advance before adding it to the rubber latex. This simple preparatory step fundamentally changes the mixing dynamics, preventing rubber particle agglomeration and gelification while maintaining the ease of manufacture. The process remains simple yet produces a stable puncture-sealing agent.
4Reliability
If dropwise addition of antifreeze liquid mixture is performed with increasing stirring speed, then rubber agglomerate formation is suppressed, but the process complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-mixing the antifreeze liquid with water, which simplifies the overall process. This pre-prepared mixture can then be added dropwise with controlled stirring, suppressing rubber agglomerate formation without requiring overly complex equipment or procedures. The complexity is managed through process design rather than equipment complexity.
Solution Approach 2:
The patent employs parameter changes by optimizing the addition rate and stirring speed during the mixing process. By carefully controlling these parameters, the process achieves effective suppression of rubber agglomerates while maintaining a relatively simple mixing setup. The parameter optimization balances product stability with process simplicity.
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
This method effectively prevents gelification and enhances the productivity of the puncture-sealing agent, ensuring stability and improved sealability, even in low-temperature environments.
Implementation Method 1
a second mixing process of adding the mixture liquid A1 dropwise into a rubber latex that is being stirred and performing mixing to obtain a mixture liquid A2
Data Source
Figure 1
Figure 2A
Figure 2B
AI summary
A method for manufacturing a puncture-sealing agent, which effectively prevents gelification of the puncture-sealing agent caused by agglomerates of rubber latex and that can enhance the productivity of the puncture-sealing agent is provided. The manufacturing method includes a first mixing process of mixing an antifreeze liquid with water to obtain a mixture liquid A1; a second mixing process of adding the mixture liquid A1 dropwise into a rubber latex that is being stirred and performing mixing to obtain a mixture liquid A2, while increasing the stirring speed as a liquid amount of the mixture liquid A2 increases; and a third mixing process of mixing the mixture liquid A2 with a tackifier. An amount of variation in the stirring speed is preferably from 0.1 rpm/mm to 6.0 rpm/mm, and a dropwise-addition rate of the mixture liquid A1 is preferably from 0.5 kg/min to 500 kg/min.