Preparation method of plant-sourced slow-release and anti-mosquito functional polyester fabric
A plant-derived, mosquito-proof technology, applied in the field of polyester fabrics, can solve problems such as difficulty in achieving a lasting and stable mosquito repellent effect.
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[0023] see Figure 1 to Figure 2 , the present invention provides a technical solution: a method for preparing a plant source slow-release anti-mosquito functional polyester fabric, comprising the following steps:
[0024] S1. Extraction of plant-derived anti-mosquito active ingredients:
[0025] The anti-mosquito active ingredients, namely mint extract, sand ginger oil extract and red eucalyptus extract, are extracted from the plant peppermint, sand ginger oil and red eucalyptus by ultrasonic waves;
[0026] S2. Preparation of anti-mosquito active ingredient microcapsule powder:
[0027] Mix the mint extract, sand ginger oil extract and red eucalyptus extract in a mass ratio of 1:1-2:1-3, mix well to obtain a mixture A, and mix A and cyclohexane at a ratio of 1:1-3 The volume ratio is mixed as the dispersed phase. After mixing evenly, gradually add emulsifier, 1% PVA and distilled water, stir evenly at a low speed as the continuous phase, and gradually add the dispersed pha...
Embodiment 1
[0037] Ultrasonic extraction of plant-derived anti-mosquito active ingredients, ultrasonic temperature 50 ° C, ultrasonic time 60 minutes, take anti-mosquito active ingredients (mint extract: sand ginger oil extract: red eucalyptus extract = 1:1:1): cyclohexane with Add emulsifier, 1% concentration of PVA and distilled water in a ratio of 1:1 and stir evenly. As a dispersed phase, add emulsifier, 1% concentration of PVA and distilled water and stir evenly. Gradually add the dispersed phase in the continuous phase, adjust to 1500-2000 rev / min after the dropwise addition is completed, obtain a stable o / w emulsion after 10min, and prepare the aqueous solution of 2% water-soluble monomer (for Phthaloyl chloride and ethylenediamine in a ratio of 1:1), slowly added to the o / w emulsion, stirred for 0.5h to obtain a solution of mint / ginger oil / red eucalyptus microcapsules, and freezing the anti-mosquito microcapsules solution After drying for 72 hours, the microcapsule powder was prep...
Embodiment 2
[0039]Ultrasonic extraction of plant-derived anti-mosquito active ingredients, ultrasonic temperature 40 ℃, ultrasonic time 40min, take anti-mosquito active ingredients (mint extract: sand ginger oil extract: red eucalyptus extract = 1:2:3): cyclohexane with Add emulsifier, 1% concentration of PVA and distilled water in a ratio of 1:2 and stir evenly, as a dispersed phase, add emulsifier, 1% concentration of PVA and distilled water and stir evenly, as a continuous phase, at a speed of 800-1200 rpm Gradually add the dispersed phase in the continuous phase, adjust to 1500-2000 rev / min after the dropwise addition is completed, obtain a stable o / w emulsion after 20min, and prepare the aqueous solution of 2% water-soluble monomer (for Phthaloyl chloride and ethylenediamine in a ratio of 1:2), slowly added to the o / w emulsion, stirred for 1 hour to obtain a solution of peppermint / ginger oil / red eucalyptus microcapsules, and freeze-dried the anti-mosquito microcapsules solution After...
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