CN104530857A - A long-term automatic spray paint for preventing and controlling white ants and its preparation method - Google Patents

Abstract

The invention discloses a long-acting automatic spray paint for preventing and treating white ants and a preparation method thereof, wherein the spray paint comprises a component A and a component B, wherein the component A comprises the following components: the component A consists of modified acrylic resin, binary biocide missible oil, dimethyl carbonate, 200# solvent oil, butyl acetate, talcum powder, color paste and a dispersing agent; the component B is dimethyl ether. The long-acting automatic spray paint for preventing and controlling the white ants is prepared by adopting a benzene-free film forming material, a diluent, a propellant and a high-efficiency low-toxicity biocide as raw materials, realizes the simplicity and convenience of the application technology for preventing the white ants, is safe to people and livestock, is environment-friendly, and belongs to an effective green white ant prevention and control product. The product is suitable for spraying on the outer wall and the ground surface of a building, can directly kill and repel white ants, and effectively protects the building and the home from being damaged by the white ants. Meanwhile, the product is also suitable for outdoor and garden shed frame structures and wood white ant prevention.

Description

A long-term automatic spray paint for preventing and controlling white ants and its preparation method

technical field

The invention relates to a preparation method for long-acting automatic paint spraying for preventing and controlling white ants, belonging to the field of biocide coating compositions for building exterior walls and ground covering.

Background technique

At present, chemical drug control is the main measure for the prevention and control of white ants. With the enhancement of human environmental awareness and the signing of the "Stockholm Convention on Persistent Organic Pollutants (POPs), long-term use of inorganic pesticides and organochlorine pesticides are gradually being phased out. And control personnel are looking for environmentally friendly and effective white ant green control technology.

The types of pesticides commonly used in traditional control mainly belong to two categories: inorganic insecticides and organochlorine insecticides. Inorganic insecticides used to be the main species for the control of white ants in the world, including boric acid, borax, arsenic trioxide and other strong stomach poisons, which can be formulated into various traps and killers by using the white ants' feeding habits. The disadvantages of inorganic insecticides and organochlorine agents are obvious. High toxicity, high residue and triple toxicity can no longer meet people's requirements for the environment. The United States banned the use of chlordane and mirex in 1976 and 1987, respectively.

The main representative of organophosphorus agents is chlorpyrifos, which is a broad-spectrum insecticide developed and developed by Dow Chemical Company in the United States in 1965. Chlorpyrifos was put into the white ant control market in the United States in 1980. By 1985, the market share of chlorpyrifos in the United States had reached 61.4%, and in 1988 it had increased to 80.3%. It has high-efficiency contact, stomach poisoning and fumigation effects, broad insecticidal spectrum, and long residual effect. It is an ideal agent to replace mirex and chlordane. impact”, the U.S. government has stopped or restricted its use in schools, hospitals, and new homes.

The market share of pyrethroid agents in the white ant control agent market is increasing year by year. Pyrethroid vinegars have a good repelling effect on white ants and are low-toxic to humans and mammals. They are currently the most diverse white ant preventive agents in the world. The termite control agent with permethrin, cypermethrin, fenvalerate, bifenthrin and other permethrin as active ingredients has been widely used in the United States and even in the world. Occupy a large proportion of the market.

The chemical drug barrier is to treat the specified parts of the building with long-lasting termite-killing agents to ensure the preventive effect of termites within a specified period of time. This method is mostly used for the prevention of termites in buildings. The advantage is that if the drug is used properly, the preventive effect is obvious. The disadvantage is that most of these preventive agents are used in xylene emulsion and powder, which will bring harmful chemicals into the environment, which is easy to cause migration hazards, and it needs to be operated and implemented by professional technical personnel for termite control. White ants present obvious inconveniences and limitations.

Contents of the invention

Aiming at the deficiencies in the prior art, the object of the present invention is to provide an automatic spray paint for long-term prevention and control of white ants and a preparation method thereof.

The technical scheme that the present invention takes is:

A binary biocide emulsifiable concentrate, mainly composed of the following components by mass: 10-13 parts of permethrin, 1-3 parts of abamectin, 26-36 parts of sepiolite, dimethyl carbonate (DMC) 40-50 parts, L-548 surfactant 1-3 parts.

Permethrin and abamectin are synergistic biocides, and a reasonable and optimal mixing ratio can make the agents produce a synergistic effect, which is obviously better than the sum of the individual components of the drug, thus reflecting the binary combination of components synergistic effect.

As a long-acting slow-release agent, sepiolite can encapsulate the binary biocide and release it slowly and continuously to the sprayed surface, so as to achieve long-term and stable prevention of white ant invasion.

DMC (dimethyl carbonate) is used as a solvent to dissolve and dilute permethrin and abamectin in the present invention, so that permethrin and abamectin are evenly distributed in the solution, and it is easy to carry out sea foaming active encapsulation of stone.

L-548 (surfactant) is used as a wetting agent to reduce surface tension. In the present invention, abamectin and permethrin can be smoothly and evenly pushed into the deep microtubules of sepiolite during the encapsulation process. Achieve good sustained release effect.

An automatic spray paint for long-term prevention and control of termites, characterized in that it includes component A and component B, wherein:

The A component is mainly composed of the following components by weight: 120-130 parts of modified acrylic resin, 10-15 parts of binary biocide emulsifiable concentrate, 180-190 parts of DMC, 30-40 parts of 200# solvent oil, BAC 20-30 parts, talcum powder 45-50 parts, color paste 35-40 parts, dispersant 1.0-2.0 parts;

The B component is dimethyl ether.

The mass ratio of component B to component A is 1:0.50-0.55.

Modified acrylic resin, as a film-forming substance, has the characteristics of good fullness, good corrosion resistance, good outdoor exposure and weather resistance, the coating film is not easy to decompose or turn yellow, and has a wide temperature range. On the one hand, it can make the binary biocide EC flow freely, and on the other hand, the loaded binary biocide can accurately adhere to the target object.

The binary biocide emulsifiable concentrate in the present invention is used as a component for killing and repelling white ants. During the air-drying and curing process of the sprayed coating film, the active sepiolite that has encapsulated the binary biocide can adjust the body position. Good hiding power is formed on the surface behind the film, which makes it easier for the drug to be evenly distributed on the surface of the film and exert the drug effect.

200# solvent oil and BAC (butyl acetate) are used as a solvent to cooperate with DMC, and act as the role of diluting modified acrylic resin and binary biocide emulsifiable concentrate in the present invention, so that the whole mixed material is more uniform in a flowable system state, and can be sprayed out The coating film is more detailed and uniform.

In the present invention, DME (dimethyl ether) is used as the whole spray paint propellant. It is a colorless gas with a slight ether fragrance at normal temperature and pressure. It is inert at normal temperature, not easy to auto-oxidize, non-corrosive and non-carcinogenic. Moreover, the formula has the dual functions of solvent and propellant, so that the propellant and paint can be sprayed out evenly and continuously when the content is sprayed out, and the paint is fully atomized when the propellant is liquefied.

The preparation method of the long-acting prevention and control termite automatic spray paint comprises the following steps:

(1) Encapsulate permethrin and abamectin in sepiolite microtubes to obtain a binary biocide emulsifiable concentrate. The specific operation is: mix permethrin, abamectin, DMC, Put L-548 into the reaction kettle, and after fully stirring evenly, take the dry sepiolite and slowly put it into the reaction kettle, and continue stirring for 10-30 min;

(2) Mix and stir the modified acrylic resin and DMC until completely dissolved into resin mother liquor;

(3) Add dispersant, talc powder and color paste to the resin mother liquor and disperse at high speed for 30-50 minutes, then add binary biocide emulsifiable concentrate, 200# solvent, BAC, and stir evenly to obtain a semi-finished product. The viscosity detected by the central control is 30 -60S;

(4) Filter the semi-finished product to remove impurities and large particles. After packing into cans, seal the cap and fill it with DME.

The beneficial effects of the present invention are:

The long-acting anti-white ant automatic spray paint of the present invention is prepared from benzene-free film formers, diluents, propellants and high-efficiency and low-toxicity biocides. It is environmentally friendly and is an effective green control product for white ants. This product is suitable for spraying on the exterior walls and ground surfaces of buildings. It can directly kill and repel white ants, and effectively protect buildings and households from white ants. At the same time, this product is also suitable for outdoor, garden scaffolding structures, and wood to prevent white ants.

Description of drawings

Figure 1 is a sample diagram of automatic paint spraying for long-term control of white ants.

Detailed ways

The present invention will be further described below in conjunction with the examples, but not limited thereto.

Example 1

Preparation of emulsifiable concentrate (take the deployment of 90kg emulsifiable concentrate as an example): dry the sepiolite in a drying oven at 120-380°C for 4-18 hours at a constant temperature, and then cool it down to room temperature for later use; mix permethrin, avermectin Weigh 13kg, 1.1kg, 44.2kg, and 1.7kg of Su, DMC, and L-548 in order, respectively, and put them into the reaction kettle, and stir at 60 rpm for 30 minutes. Slowly put 30kg of activated sepiolite into the reaction kettle, continue to stir for 15 minutes, then stop stirring, divide the emulsifiable concentrate into 1.0kg/bottle, defoam in an ultrasonic vibrator for 10-40min, and make a binary biocide emulsifiable concentrate.

Preparation of paint (take the deployment of 470kg paint as an example): Put 123 kg of modified acrylic resin and 188 kg of DMC into the reaction kettle, stir and dissolve at a stirring speed of 200-300 rpm until the transparent solution is obtained, and the resin mother liquor is obtained; Add dispersant, talcum powder and color paste to the above resin mother liquor, the quantities are 1.8kg, 48kg, 36.2kg respectively, stir and disperse at a high speed at 1000 rpm for 30-50min until the fineness is ≤35um, then adjust the speed at 200- 300 rpm, put the binary biocide emulsifiable concentrate, 200# solvent oil and BAC in the formula, the quantities are 12kg, 36kg and 25kg respectively into the reaction kettle, stir evenly for 20-30min, and make the semi-finished coating, the central control detects the viscosity for 30-60s.

Filling: filter the semi-finished paint with a 325-mesh filter to remove various impurities and large particles, use an automatic filling machine to fill 155g into a 400ml aerosol can, put in a mixing steel ball, insert a pneumatic valve for packaging; finally, press The weight ratio of 1:0.50-0.55 is filled into DME to obtain the finished product.

Example 2

Preparation of emulsifiable concentrate (taking the deployment of 90kg emulsifiable concentrate as an example): dry the sepiolite in a drying oven at 120-380°C for 4-10 hours at a constant temperature, and then cool it down to room temperature for later use; mix permethrin, avermectin Weigh 13kg, 1.1kg, 46.2kg, and 1.7kg of Su, DMC, and L-548 in order, respectively, and put them into the reaction kettle, and stir at 60 rpm for 30 minutes. Slowly put 28kg of activated sepiolite into the reaction kettle, continue to stir for 15 minutes, then stop stirring, divide the emulsifiable concentrate into 1.0kg/bottle, defoam in an ultrasonic vibrator for 10-40min, and make a binary biocide emulsifiable concentrate.

Preparation of paint (take the deployment of 470kg paint as an example): Put 120kg of modified acrylic resin and 188kg of DMC into the reaction kettle, stir and dissolve at a stirring speed of 200-300 rpm to a transparent solution to obtain a resin mother liquor; pour the above resin mother liquor Add dispersant, talcum powder and color paste, the quantity is 1.8kg, 50kg, 37.2kg respectively, stir and disperse at high speed at 1000 rpm for 30-50min, sand mill to fineness ≤ 35um, and then adjust the speed at 200-300 Turn per minute, put the binary biocide emulsifiable concentrate, 200# solvent oil and BAC in the formula, the quantities are 12kg, 36kg, 25kg respectively into the reaction kettle, stir evenly for 30min, and make the semi-finished coating, the viscosity of the central control is 30- 60s.

Filling: filter the semi-finished paint with a 325-mesh filter to remove various impurities and large particles, use an automatic filling machine to fill 155g into a 400ml aerosol can, put in a mixing steel ball, insert a pneumatic valve for packaging; finally, press Weight: 1: Fill the amount of 0.50-0.55 into DME to get the finished product.

Example 3

Preparation of emulsifiable concentrate (take the deployment of 90kg emulsifiable concentrate as an example): dry the sepiolite in a drying oven at 120-280°C for 4-18 hours at a constant temperature, and then cool it down to room temperature for later use; mix permethrin, avermectin Weigh 13kg, 1.1kg, 42.2kg, and 1.7kg of Su, DMC, and L-548 in order, respectively, and put them into the reaction kettle, and stir at 60 rpm for 30 minutes. Slowly put 32kg of activated sepiolite into the reaction kettle, continue to stir for 15 minutes, then stop stirring, divide the emulsifiable concentrate into 1.0kg/bottle, defoam in an ultrasonic vibrator for 60-80min, and make a binary biocide emulsifiable concentrate.

Preparation of paint (take the deployment of 470kg paint as an example): Put 123kg of modified acrylic resin and 188kg of DMC into the reaction kettle, stir and dissolve at a stirring speed of 200-300 rpm to a transparent solution to obtain a resin mother liquor; Add dispersant, talcum powder and color paste to the mother liquor, the quantity is 1.8kg, 48kg, 36.2kg respectively, stir at 1000-1200 rev/min and disperse at high speed for 60-70min until the fineness is ≤35um, then adjust the speed at 200- 300 rpm, put the binary biocide emulsifiable concentrate, 200# solvent oil and BAC in the formula, the quantities are 12kg, 36kg and 25kg respectively into the reaction kettle, stir evenly for 20min, and make the semi-finished coating, the viscosity detected by the central control is 30 -60s.

Filling: filter the semi-finished paint with a 325-mesh filter to remove various impurities and large particles, use an automatic filling machine to fill 155g into a 400ml aerosol can, put in a mixing steel ball, insert a pneumatic valve for packaging; finally, press The weight ratio of 1:0.50-0.55 is filled into DME to obtain the finished product.

Main technical indicators of the product:

1. The binary biocide in the semi-finished coating of the present invention meets the requirements of the following standards.

2. The automatic spray paint of the present invention complies with the standard requirements of "Packaging Industry Standard of the People's Republic of China - Aerosol Paint" (standard number BB/T 0047-2007).

The long-acting anti-white ant automatic spray paint of the present invention is prepared from benzene-free film formers, diluents, propellants and high-efficiency and low-toxicity biocides. It is environmentally friendly and is an effective green control product for white ants. This product is suitable for spraying on the exterior walls and ground surfaces of buildings. It can directly kill and repel white ants, and effectively protect buildings and households from white ants. At the same time, this product is also suitable for outdoor, garden scaffolding structures, and wood to prevent white ants.

The above embodiments are only preferred cases for introducing the present invention. For those skilled in the art, any obvious changes and improvements made within the scope of not departing from the spirit of the present invention should be regarded as a part of the present invention.

Claims (6)

1. a binary biocide missible oil, is characterized in that, the component primarily of following mass parts forms: Permanone 10-13 part, Avrmectin 1-3 part, sepiolite 26-36 part, DMC 40-50 part, L-548 tensio-active agent 1-3 part.

2. the white ant auto spray painting of long-acting control, is characterized in that, comprise component A and B component, wherein:

Described component A is mainly composed of the following components: acrylic resin modified, binary biocide missible oil, DMC, 200# solvent oil, BAC, talcum powder, mill base, dispersion agent, and described binary biocide missible oil as claimed in claim 1;

Described B component is dme.

3. the white ant auto spray painting of long-acting control according to claim 2, it is characterized in that, described component A forms primarily of the component of following weight part: acrylic resin modified 120-130 part, binary biocide missible oil 10-15 part, DMC 180-190 part, 200# solvent oil 30-40 part, BAC 20-30 part, talcum powder 45-50 part, mill base 35-40 part, dispersion agent 1.0-2.0 part.

4. the white ant auto spray painting of the long-acting control according to Claims 2 or 3, is characterized in that, the mass ratio of B component and component A is 1:0.50-0.55.

5. the preparation method of the white ant auto spray painting of long-acting control described in any one of claim 2-4, comprises the steps:

(1) Permanone and Avrmectin are encapsulated in the microtubule of sepiolite, obtain binary biocide missible oil;

(2) acrylic resin modified and DMC mixing and stirring are extremely dissolved as resin mother liquor completely;

(3) in resin mother liquor, add dispersion agent, talcum powder and mill base after high speed dispersion 30-50min, then add binary biocide missible oil, 200# solvent, BAC, stir, obtain work in-process, it is 30-60S that middle control detects viscosity;

(4) carried out by work in-process filtering impurity and macrobead thing, after sub-packing pot, capping is filled with DME.

6. preparation method according to claim 5, it is characterized in that, the concrete operations of step (1) are: drop in reactor, after stirring by Permanone, Avrmectin, DMC, L-548, get dry sepiolite slowly to drop in reactor, continue to stir 10-30 min.