Preparation method of nano propolis-loaded calcium carbonate hollow microsphere/natural latex antibacterial composite film
A technology of nano-propolis and hollow microspheres, which is applied in the field of preparation of nano-propolis-loaded calcium carbonate hollow microspheres/natural latex antibacterial composite membranes, to achieve improved antibacterial performance, high specific surface area, and good reinforcement effect
Active Publication Date: 2018-11-06
LONGYAN UNIV
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Problems solved by technology
However, there is no relevant report about adding nano-propolis loaded on calcium carbonate hollow microspheres into natural rubber latex to modify it in the current research.
Method used
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[0031] All reagents used were commercial reagents unless otherwise specified, and were not further purified before use.
[0032] The preparation method of nano-propolis-loaded calcium carbonate hollow microsphere / natural latex antibacterial composite membrane specifically comprises the following steps:
[0033] Add 50 g of calcium carbonate hollow microspheres to 100 g of liquid nano-propolis (particle size range 30nm-50nm), heat and stir at 45° C. in an electric stirrer to obtain calcium carbonate hollow microspheres / nano-propolis solution. Then the calcium carbonate hollow microsphere / nano propolis solution was ultrasonically dispersed for 15 minutes to obtain the calcium carbonate hollow microsphere / liquid nano propolis ultrasonic dispersion.
[0034] Add 8.5g vulcanization compounding agent (by 3g 50% sulfur dispersion, 3g40% zinc oxide dispersion, 1g 50% accelerator M dispersion, 1.5g 40% accelerator DM dispersion) to 1000g natural latex (weight in dry rubber) Compositio...
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Abstract
The invention discloses a preparation method of a nano propolis-loaded calcium carbonate hollow microsphere / natural latex antibacterial composite film, and the preparation method comprises the following steps: adding calcium carbonate hollow microspheres into liquid nano propolis, heating, stirring, and then performing ultrasonic dispersion to obtain a dispersion; adding a vulcanization compounding agent to natural latex to prepare pre-vulcanized natural latex; heating the pre-vulcanized natural latex to 75 DEG C, adding the heated pre-vulcanized natural latex to the calcium carbonate hollow microsphere / liquid nano propolis ultrasonic dispersion, heating and stirring uniformly the mixture to obtain the nano propolis-loaded calcium carbonate hollow microsphere / natural latex composite emulsion, pouring the nano propolis-loaded calcium carbonate hollow microsphere / natural latex composite emulsion to a glass plate with a frame to form a film by drying, and after the film is completely dried, drying the film under vacuum to obtain the nano propolis-loaded calcium carbonate hollow microsphere / natural latex antibacterial composite film. The nano propolis-loaded calcium carbonate hollow microsphere / natural latex antibacterial composite film prepared by the method fully utilizes the reinforcing effect of the calcium carbonate hollow microspheres and the good antibacterial property of the nano propolis, and the obtained nano propolis-loaded calcium carbonate hollow microsphere / natural latex antibacterial composite film not only has excellent mechanical properties but also has antibacterial property.
Description
technical field [0001] The invention relates to a preparation method of a natural latex antibacterial composite film, in particular to a preparation method of a nano propolis loaded calcium carbonate hollow microsphere / natural latex antibacterial composite film. Background technique [0002] Natural rubber latex is produced from the Hevea trilobata tree. It is a natural and renewable water-based dispersion system. Its products have excellent comprehensive performance and irreplaceability, and are widely used in the preparation of impregnated, extruded, molded and sponge latex products. , such as medical catheters, medical gloves and condoms. However, due to the impact of the environment and other non-rubber components in natural latex on latex products, latex products have poor tear resistance, wear resistance and corrosion resistance, which limits their application. With the improvement of people's living standards, the requirements for latex products not only need to meet...
Claims
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Patent Timeline
Login to View More IPC IPC(8): C08L7/02C08L93/00C08K7/24C08J5/18C08J3/26
CPCC08J3/26C08J5/18C08J2307/02C08J2493/00C08L7/02C08L93/00C08K7/24
Inventor 陈晰吴杰张金城
Owner LONGYAN UNIV