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Long acting sustained-release insect prevention additive agent for inner wall paint and preparation method thereof

A technology for interior wall coatings and additives, applied in the fields of botanical equipment and methods, plant growth regulators, anti-fouling/underwater coatings, etc., can solve the problems of high production cost, insufficient coating effect, needing drying and pulverizing processes, etc. , to achieve beneficial effects on human health

Inactive Publication Date: 2010-11-03
董庆华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the coating effect in β-cyclodextrin is still insufficient, and drying and crushing processes are still required, and the production cost is relatively high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 1) Preparation of oil phase solution: Dissolve 65 grams of natural pyrethrin in 100 grams of cyclohexanone, add 19.34 grams of toluene diisocyanate, 0.25 grams of dibutyltin dilaurate, and 2 grams of oil-soluble essence, mix and stir evenly, and set aside.

[0028] 2) Preparation of aqueous phase solution: Dissolve 20 grams of gum arabic powder in 180 grams of distilled water to make a 10% gum arabic solution, then add 30 grams of OP-10 emulsifier and 10.96 grams of triethanolamine, mix and stir evenly, and set aside.

[0029]3) Formation of microcapsules: at normal temperature, maintain the stirring speed of the water phase solution at about 80 rpm, slowly add the oil phase solution into the water phase solution, and maintain the stirring speed for 1 hour after the dropwise addition, so that The oil phase solution is dispersed into oil droplets with a particle diameter of 10 to 100 microns in the water phase solution. The toluene diisocyanate in the oil droplets and the...

Embodiment 2

[0033] 1) Preparation of oil phase solution: Dissolve 45 grams of chlorpyrifos and 20 grams of beta-cypermethrin in 100 grams of cyclohexanone, add 9.67 grams of toluene diisocyanate, 0.3 grams of dibutyltin dilaurate, 1 gram of oil-soluble essence, mix and stir evenly ,spare.

[0034] 2) Preparation of aqueous phase solution: 20 grams of gum arabic powder are dissolved in 180 grams of distilled water to make 10% gum arabic solution, then add 25 grams of OP-10 emulsifier, 5 grams of 1,4-butanediol, mix Stir well and set aside.

[0035] 3) Formation of microcapsules: at normal temperature, maintain the stirring speed of the water phase solution at about 80 rpm, slowly add the oil phase solution into the water phase solution, and maintain the stirring speed for 1 hour after the dropwise addition, so that The oil phase solution is dispersed into oil droplets with a particle diameter of 10-100 microns in the water phase solution, and the toluene diisocyanate in the oil droplet an...

Embodiment 3

[0039] 1) Preparation of oil phase solution: dissolve 100 grams of propoxur and 10 grams of avermectin in 150 grams of cyclohexanone, add 12.34 grams of isophorone diisocyanate, 0.3 grams of dibutyltin dilaurate, 2 grams of oil Soluble essence, mix well and set aside.

[0040] 2) Preparation of aqueous phase solution: Dissolve 25 grams of gum arabic powder in 275 grams of distilled water to make 8.33% gum arabic solution, then add 40 grams of OP-10 emulsifier and 5.48 grams of triethanolamine, mix well and set aside.

[0041] 3) Formation of microcapsules: at normal temperature, maintain the stirring speed of the water phase solution at about 80 rpm, slowly add the oil phase solution into the water phase solution, and maintain the stirring speed for 1 hour after the dropwise addition, so that The oil phase solution is dispersed into oil droplets with a particle diameter of 10-100 microns in the water phase solution. The isophorone diisocyanate in the oil droplets and the triet...

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Abstract

The invention discloses a long-acting slow release and inspect-prevention additive used in interior wall paint and a preparation method thereof. The additive consists of materials according to weight ratios as follows: 30 portions to 150 portions of pesticide, 50 portions to 250 portions of cyclohexanone, 5 portions to 40 portions of diisocyanate, 0.1 portion to 4 portions of dibutyltin dilaurate, 0 portion to 10 portions of oil-soluble flavor, 10 portions to 60 portions of arabic gum, 20 portions to 100 portions of emulsifier, 5 portions to 25 portions of triethanolamine or polybasic alcohol, 5 portions to 30 portions of carboxymethyl cellulose, 1 portion to 10 portions of isothiazolinones and 300 portions to 500 portions of water. The preparation method comprises the steps as follows: the pesticide, the diisocyanate, an adjuvant and the like are dissolved in oil phase; the triethanolamine, a protective agent and the like are dissolved in aqueous phase; then the oil-phase solution and the aqueous-phase solution are under polymerization reaction at normal temperature by stirring to produce microcapsule aqueous suspension, with polyurethane as an encapsulating material to coat the pesticide; then the carboxymethyl cellulose and the isothiazolinones are added until fully dissolved to obtain the additive. The additive is characterized by good effect in coating pesticide active components, long lasting effect, simple preparation, low cost and the like.

Description

technical field [0001] The invention relates to a functional additive which can be mixed in the interior wall paint liquid, and can also be brushed or sprayed on the film-forming surface of the interior wall paint, specifically refers to a long-acting slow-release insect repellent additive for interior wall paint and its preparation method. Background technique [0002] In real life, biological pests such as mosquitoes and flies often invade the room, disturbing people's normal living, eating and learning, and these biological pests often stay on the walls and ceilings when they avoid being driven by humans, and are not easy to kill. The commonly used method of insecticide at home is to use hygienic insecticide aerosol cans to spray and repel them, but the purchase cost is high, the spraying operation takes a lot of energy, the insecticidal efficiency per unit area or space is low, and the insecticide The mist will enter the human body through the respiratory system and aff...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D7/12C09D5/14A01N25/28A01P7/00
Inventor 董庆华吴伟文董天唯
Owner 董庆华