Amorphous Copper Silicate Deodorant for Resin Compatibility
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional deodorants have insufficient deodorizing performance against sulfurous stenches like methyl mercaptan and hydrogen sulfide, and when kneaded into resins, they cause resin deterioration and discoloration due to copper ions, limiting their application and processing conditions.
Innovation Solution
An amorphous copper silicate with a specific composition (xNa2O·yCuO·SiO2·zH2O) is used, where x is between 0.002 and 0.040, y is between 0.07 and 0.48, and z is between 0.02 and 0.30, which provides excellent deodorizing performance while preventing resin deterioration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional deodorants (activated carbon, aromatic primary amine impregnated carbon, iron compound combinations) are used, then general deodorizing function is provided, but sulfurous stench deodorizing capability is insufficient and coloration/discoloration occurs
Solution Approach 1:
The invention changes the chemical composition parameters by using specific metal salts (copper, zinc, manganese, cobalt, nickel) combined with silicate salts in controlled molar ratios (0.29 to 0.5), creating an amorphous complex structure that provides both superior sulfurous stench deodorization and color stability without the discoloration problems of conventional deodorants
Solution Approach 2:
The invention creates a composite material system by forming an amorphous complex of metal salt and silicate salt, combining the deodorizing properties of metal salts with the structural stability and color fastness of silicate salts, achieving both high deodorizing performance and resistance to coloration
2Reliability
If copper-containing deodorants are used to improve sulfurous stench deodorization, then deodorizing effect is enhanced, but resin deterioration and discoloration occur during processing
Solution Approach 1:
The silicate salt acts as an intermediary that complexes with copper ions, forming an amorphous copper silicate structure. This intermediary structure prevents direct contact between copper ions and the resin, eliminating copper damage while maintaining the deodorizing effectiveness of the copper component
Solution Approach 2:
The invention extracts copper ions from their harmful free state and incorporates them into an amorphous silicate complex structure, separating the deodorizing function from the harmful resin-deteriorating effect, allowing copper to provide deodorization without causing resin degradation
3Reliability
If high concentration copper deodorants are used, then methyl mercaptan deodorization is improved, but resin discoloration and abnormal odor increase
Solution Approach 1:
The invention optimizes the molar ratio parameters of metal salt to silicate salt (0.29 to 0.5) and controls the element composition ratios (CuO/SiO2 = 0.55) to achieve the optimal balance between deodorizing performance and resin compatibility, preventing abnormal odor and discoloration while maintaining effective methyl mercaptan deodorization
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 amorphous copper silicate effectively deodorizes sulfurous stenches and prevents resin discoloration and deterioration, maintaining deodorizing effectiveness even when incorporated into resin products.
Implementation Method 1
a deodorant containing amorphous copper silicate... excellent deodorizing performance with respect to sulfurous stench
Data Source
AI summary
It is an object of the present invention to provide a deodorant or a deodorant composition which has excellent deodorizing performance with respect to sulfurous stench from methyl mercaptan and hydrogen sulfide and the like. It is another object of the present invention to provide a deodorant or a deodorant composition which maintains a deodorizing effect with respect to sulfurous stench and which makes it possible to suppress resin deterioration in the case of being kneaded into a resin, and a deodorizing product containing the same. A deodorant of the present invention contains amorphous copper silicate represented by the following formula [1]: xNa2O·yCuO·SiO2·zH2O [1] wherein, in formula [1], x is a positive number from 0.002 to 0.040, y is a positive number from 0.07 to 0.48, and z is a positive number from 0.02 to 0.30.