Application of hierarchical pore structure high polymer material as slow-release base material

Abstract

The invention discloses application of a hierarchical pore structure high polymer material as a slow-release base material, and belongs to the field of slow-release materials. The density of the hierarchical pore structure high polymer material is 0.20-0.60 g / cm < 3 >, and the hierarchical pore structure high polymer material has a hierarchical pore structure. The rich pore structure of the material can realize gradual adsorption, permeation and desorption of the active substance through the internal and external pressure difference of the slow-release substrate and the affinity between the active substance and the slow-release substrate molecules, the process determines that the active substance is released into the external environment at a stable rate, the slow-release action time is long, and the effect is stable; in addition, due to the hierarchical pore structure of the material, the material has the performance characteristics of heat insulation and heat preservation, and the inactivation and accelerated volatilization of active substances caused by external photo-thermal stimulation, potential safety hazards caused by overlarge internal pressure and the like can be effectively avoided; and on the other hand, the hierarchical pore structure high polymer material has excellent mechanical properties and machining properties, and can be processed into a slow-release base material device with an independent structure.

Description

technical field [0001] The invention belongs to the field of slow-release materials, in particular to the application of a polymer material with a hierarchical porous structure as a slow-release substrate. Background technique [0002] With the continuous improvement of people's living standards, people's requirements for the comfort, health, safety and environmental protection of themselves and their living environment are also getting higher and higher, so the demand for indoor air purification, disinfection, sterilization and odor adjustment is gradually increasing. increase. [0003] At present, there are many odor-sustaining decorations on the market, which are used in indoor homes, cars, hotels, environmental disinfection, and personal accessories. However, due to the small molecular weight of active substances contained in fragrances, essential oils, pharmacological substances, preservatives and disinfectants, etc., they are more sensitive to light and heat, and are ...

AI Technical Summary

Problems solved by technology

However, due to the small molecular weight of active substances contained in fragrances, essential oils, pharmacological substances, preservatives and disinfectants, etc., they are more sensitive to light and heat, and are easy to volatilize, resulting in a short release time for most active substances, and the stable release function is retained. The deadline cannot be guaranteed; in addition, the existing materials with sustained release function are rare and in a single form

According to market research results, fragrances, essential oils, and pharmacological substance slow-release products mostly use the number of inserted rattans to adjust the release rate of active substances; balm, fragrance tablets, and environmental disinfection substances mostly use the physical pores on the product packaging bottle The size of the active substance is controlled release, which makes the active substance of the commercially available sustained-release products have many defects such as short action time, unstable effect, low utilization rate, and inconvenient operation during use.

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