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Fully bio-based anti-ultraviolet mosquito-repelling microcapsules and preparation method thereof

A microcapsule and UV-type technology, which is applied in the direction of microcapsule preparation, botany equipment and method, microsphere preparation, etc., can solve the problems of adding anti-ultraviolet chemical treatment process, complicated preparation process, emulsifier residue, etc., and achieve good The market application prospect, the process is simple and easy to control, and the effect of uniform particle size

Active Publication Date: 2019-08-16
上海驰纺材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] But, the preparation of natural mosquito repellent microcapsule or adopt non-biodegradable capsule wall (as: CN103194911B and CN107439542A) at present, perhaps adds a large amount of synthetic emulsifiers and harmful curing agent (as formaldehyde etc.) in microcapsule preparation, these The emulsifier will partially remain in the final product and cause potential harm to the human body (such as: CN105594755B, CN102926201B, CN105165911B and CN104872215B)
In addition, in the field of textiles, mosquito repellent microcapsules are often used in summer clothing, and summer clothing also has certain requirements for anti-ultraviolet rays. At the same time, achieving mosquito repellent and anti-ultraviolet effects requires adding anti-ultraviolet chemicals or new treatment processes, and the preparation process is relatively complicated.

Method used

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  • Fully bio-based anti-ultraviolet mosquito-repelling microcapsules and preparation method thereof
  • Fully bio-based anti-ultraviolet mosquito-repelling microcapsules and preparation method thereof
  • Fully bio-based anti-ultraviolet mosquito-repelling microcapsules and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] First, weigh 10 g of polylactic acid and 10 g of citronella oil and dissolve in 20 mL of dichloromethane solution to form an oil phase, weigh 0.8 g of alkali lignin to disperse in 40 mL of water, and form an aqueous phase under magnetic stirring. The internal pressure Shirasu porous glass membrane (SPG membrane) emulsifier is used to prepare the oil-in-water emulsion. The specific process of emulsion preparation is: the oil phase is passed through the SPG membrane (pore size 1μm) under nitrogen pressure to form oil on the membrane surface Phase droplets, under the washing action of the water phase, the oil phase droplets peel off from the film surface to obtain an oil-in-water emulsion.

[0036] Then, the oil-in-water emulsion was stirred for 12 hours with a magnetic stirrer under normal temperature and pressure conditions to evaporate and remove the solvent dichloromethane, so that the microcapsules were solidified and formed. Finally, the microcapsule filter cake is obta...

Embodiment 2

[0039] First, weigh 10 g of polylactic acid and 10 g of lemon eucalyptus oil and dissolve in 20 mL of dichloromethane solution to form an oil phase, weigh 0.8 g of alkali lignin to disperse in 40 mL of water, and form an aqueous phase under magnetic stirring. The internal pressure Shirasu porous glass membrane (SPG membrane) emulsifier is used to prepare the oil-in-water emulsion. The specific process of emulsion preparation is: the oil phase is passed through the SPG membrane (pore size 0.5μm) under nitrogen pressure to form on the membrane surface The oil phase droplets, under the washing action of the water phase, the oil phase droplets peel off from the membrane surface to obtain an oil-in-water emulsion.

[0040] Then, the oil-in-water emulsion was stirred for 15 hours with a magnetic stirrer under normal temperature and normal pressure to evaporate and remove the solvent dichloromethane, so that the microcapsules were solidified and formed. Finally, the microcapsule filter ...

Embodiment 3

[0043] First, weigh 6.67 g of polylactic acid and 13.33 g of citronella oil and dissolve in 20 mL of dichloromethane solution to form an oil phase, weigh 0.9 g of sodium lignosulfonate to disperse in 40 mL of water, and form an aqueous phase under magnetic stirring. The internal pressure Shirasu porous glass membrane (SPG membrane) emulsifier is used to prepare the oil-in-water emulsion. The specific process of the emulsion preparation is: the oil phase is passed through the SPG membrane (pore size is 0.2μm) under nitrogen pressure to form on the membrane surface The oil phase droplets, under the washing action of the water phase, the oil phase droplets peel off from the membrane surface to obtain an oil-in-water emulsion.

[0044] Then, the oil-in-water emulsion was stirred for 12 hours with a magnetic stirrer under normal temperature and pressure conditions to evaporate and remove the solvent dichloromethane, so that the microcapsules were solidified and formed. Finally, the mi...

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Abstract

The invention relates to fully bio-based anti-ultraviolet mosquito-repelling microcapsules and a preparation method thereof. The fully bio-based anti-ultraviolet mosquito-repelling microcapsules comprise bio-based capsule walls, bio-based anti-ultraviolet materials and bio-based capsule cores with a mosquito-repelling function. The capsule walls, the capsule cores and emulsifiers are all biodegradable materials, and a product is biodegradable, safe and environmentally friendly; the preparation method adopts simple and easy-to-control processes and is low in cost, and the obtained microcapsuleshave mosquito repelling effects, anti-ultraviolet effects and good market application prospects.

Description

Technical field [0001] The invention belongs to the field of functional microcapsules, and particularly relates to a bio-based anti-ultraviolet mosquito repellent microcapsule and a preparation method thereof. Background technique [0002] Mosquitoes are very harmful to humans. In addition to directly biting and sucking blood, affecting people's sleep, rest, and normal life and work, mosquitoes are more serious in spreading many diseases and endangering human health and lives. The diseases transmitted by mosquitoes include catastrophic diseases such as malaria, lymphatic filariasis, Japanese encephalitis and dengue fever. Mosquitoes can also infect viruses, typically yellow fever. Mosquito repellent textiles are one of the more effective and safe methods among various anti-mosquito measures. Mosquito repellent textiles are prepared by finishing textile fabrics with different types of mosquito repellents. Natural mosquito repellents have received widespread attention because of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M23/12D06M15/507D06M13/00D06M15/01B01J13/02A01N65/28A01N65/44A01N25/28A01P17/00D06M101/06
CPCA01N25/28A01N65/00A01N65/28A01N65/44B01J13/02D06M13/00D06M15/01D06M15/507D06M23/12D06M2101/06D06M2200/25Y02A50/30
Inventor 王先锋杜博超靳晓松杨兴友朱建梅
Owner 上海驰纺材料科技有限公司
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