Biologically Active OSB With Molecular Nest Carrier for Lasting Odor Control
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Solution Overview
Problem
Existing OSBs containing biologically active substances like Masson pine needles and camphor wood extracts suffer from poor aging resistance, mechanical performance, and non-long-lasting anti-mold and odor-removing properties due to the loss and degradation of these substances.
Innovation Solution
A method involving the preparation of a molecular nest carrier using modified zeolite powder and β-cyclodextrin, cross-linked with chitosan, to encapsulate biologically active substances like Masson pine needles and camphor wood, ensuring sustained release and improved mechanical properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If biologically active substances (Masson pine needles, camphor wood extracts) are added to OSB to enhance anti-mold and odor-removing performance, then anti-mold and odor-removing properties are improved, but the substances are prone to loss and degradation, causing effects to be non-long-lasting
Solution Approach 1:
The patent applies the nesting principle by encapsulating biologically active substances within a molecular nest structure formed by modified zeolite powder and β-cyclodextrin. The zeolite powder provides a porous nested structure that physically traps the biologically active substances, preventing their loss and degradation while enabling sustained release over time, thus resolving the contradiction between immediate effectiveness and long-lasting performance
Solution Approach 2:
The patent applies preliminary action by pre-modifying the zeolite powder with sodium hydroxide solution and organic compounds before encapsulating the biologically active substances. This pre-treatment creates a stable molecular nest structure that is designed to release the active substances gradually, ensuring long-lasting effects from the outset rather than requiring subsequent reinforcement
2Duration of action of stationary object
If molecular nests with plant extracts are prepared to achieve sustained-release properties, then anti-bacterial, odor-removing, and anti-mold performance is enhanced with extended duration, but the OSBs exhibit poor aging resistance and mechanical performance significantly decreases after aging tests
Solution Approach 1:
The patent applies composite materials by combining modified zeolite powder, modified β-cyclodextrin, and biologically active substances to form a molecular nest composite structure. This composite approach creates a synergistic system where the inorganic zeolite provides structural stability and aging resistance, while the organic β-cyclodextrin enables sustained release, and the biologically active substances provide the functional benefits, thus achieving both long-lasting performance and maintained mechanical strength after aging
Solution Approach 2:
The patent applies parameter changes by modifying the physical and chemical parameters of the zeolite powder through treatment with sodium hydroxide solution and organic compounds. These parameter changes optimize the pore structure, surface area, and chemical reactivity of the zeolite, enabling it to form a stable molecular nest that maintains mechanical performance while providing sustained release of biologically active substances
3Reliability
If existing OSBs containing biologically active substances are used, then anti-mold and odor-removing properties are enhanced, but mechanical performance is low and retention of mechanical performance after aging tests is poor
Solution Approach 1:
The patent applies nesting by embedding biologically active substances within the molecular nest structure of modified zeolite powder and β-cyclodextrin. This nested configuration protects the mechanical integrity of the OSB while delivering the anti-mold and odor-removing functions, as the rigid zeolite framework provides structural support that maintains mechanical performance even after aging exposure
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 method enhances the anti-mold, odor-removing, and anti-bacterial performance of OSBs by providing long-lasting effects and improved mechanical strength, while maintaining stability under aging conditions.
Implementation Method 1
loading the molecular nest carrier with the biologically active substance
Implementation Method 2
cross-linking
Data Source
AI summary
The present disclosure discloses a method for preparing an anti-mold and odor-removing oriented strand board (OSB). The anti-mold and odor-removing OSB includes a biologically active substance. The method includes preparing the biologically active substance, preparing a molecular nest carrier, loading the molecular nest carrier with the biologically active substance, preparing a functional impregnating agent, and impregnating a OSB with the functional impregnating agent. Preparing the molecular nest carrier includes first-time modifying zeolite powder, second-time modifying zeolite powder, modifying β-cyclodextrin, mixing, and cross-linking. The anti-mold and odor-removing OSB prepared by the present disclosure exhibits excellent antibacterial, anti-mold and odor-removing performance, high mechanical strength, and superior aging resistance.