Active-powder biocidal composition comprising at least one copper salt and at least one zinc salt and the method for the production thereof
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Solution Overview
Problem
Current biocide compositions containing copper and zinc salts lack specificity in solubility constants, making them unsuitable for various applications as they do not meet the required speed and concentration needs, and their release is defined by solubility constants, necessitating compositions with predefined solubility ranges for specific uses.
Innovation Solution
Development of biocide compositions comprising copper and zinc salts with solubility constants ranging from 1*10^-20 to 9*10^-6, combined with polymers, and a method for their fabrication that ensures a controlled release by adjusting the molar ratios and solubility constants of the salts to achieve desired biocide effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If copper and zinc salts are used as biocide agents, then biocidal activity is enhanced through synergistic effect, but the release speed and concentration cannot be controlled for specific applications
Solution Approach 1:
The patent applies parameter changes by systematically varying the solubility product constants (Kps) of copper and zinc salts across multiple orders of magnitude (from 10^-20 to 10^-6). This allows tuning the release rate and concentration of biocidal ions to match specific application requirements, resolving the contradiction between maintaining high biocidal activity and achieving application-specific control.
Solution Approach 2:
The patent employs composite materials by formulating biocide compositions containing multiple copper salts and zinc salts with different solubility characteristics. This composite approach enables synergistic biocidal activity while the varying solubility products provide controlled release profiles, simultaneously achieving enhanced reliability and adaptability.
2Adaptability or versatility
If salts with predefined solubility constants are used, then controlled release for specific applications is achieved, but the complexity of composition formulation increases
Solution Approach 1:
The patent manages formulation complexity by systematically categorizing salts according to their solubility product constants into distinct ranges. This parameter-based classification provides a structured approach to selecting and combining salts, making the formulation process more manageable despite the increased control requirements.
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 compositions provide tailored biocide effects with controlled release and long-lasting protection, suitable for diverse applications by optimizing the molar ratios and solubility constants of copper and zinc salts, enhancing their biocidal activity and durability.
Implementation Method 1
In contact with water, these salts release cuprous and/or cupric ions, depending on the type of salt. The release of biocide agents in the case of salts is defined by their solubility constant.
Implementation Method 2
The mechanism through which fungus, bacteria and virus are inactivated and/or eliminated by copper ions is by means of the penetration of said ions into the microorganism through the membrane.
Data Source
Figure 1~2
AI summary
Active-powder biocidal composition comprising at least one copper salt and at least one zinc salt such that the molar ratio between the copper salt and the zinc salt is within the range of 10 to 1 and each copper and zinc salt, separately, has a solubility constant (Kps) within the range from a value greater than or equal to 1*10-20 to a value less than or equal to 9*10-6. Also included is the biocidal composition that comprises the active-powder composition and a polymer, and the method for the production of said biocidal composition, which comprises: thoroughly mixing the salts in such a manner as to obtain a homogeneous distribution of an active-powder biocidal composition; controlling the mixing temperature such that it remains at approximately less than 50°C; and mixing the resulting mixture of active powders with a polymer.