CN110982430A

CN110982430A - Moistureproof environment-friendly coating

Info

Publication number: CN110982430A
Application number: CN201911295850.8A
Authority: CN
Inventors: 舒华云
Original assignee: Jiangmen Yi Jia Mei Coating Co ltd
Current assignee: Jiangmen Yi Jia Mei Coating Co ltd
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2020-04-10

Abstract

The invention discloses a damp-proof environment-friendly coating which comprises the following raw materials in parts by weight: 60-75 parts of natural plant resin, 6-12 parts of mica powder, 7-10 parts of epoxidized soybean oil, 3-6 parts of defoaming agent, 4-7 parts of wetting agent, 6-10 parts of anti-settling agent, 1-4 parts of drier, 6-9 parts of plasticizer, 1-3 parts of mildew preventive, 6-10 parts of dispersing agent, 4-8 parts of stabilizer, 5-10 parts of flame retardant, 20-30 parts of diatomite, 6-10 parts of film forming auxiliary agent, 1-5 parts of antioxidant, 0.3-1 part of glass fiber, 0-0.2 part of phenolic fiber and 0.2-0.6 part of asbestos fiber. This damp-proof environmental protection coating through filling modified titanium dioxide in the inside hole of diatomaceous earth, makes the coating have the photocatalyst characteristic, when harmful gas such as formaldehyde in can the decomposition air, can make diatomaceous earth can not absorb the moisture in the air, avoids the coating foaming loose to make it have better dampproofing effect, effectively prolonged the life of coating, improved the practicality.

Description

Moistureproof environment-friendly coating

Technical Field

The invention relates to the technical field of environment-friendly coatings, in particular to a moistureproof environment-friendly coating.

Background

The coating is a paint which is traditionally named as paint in China, the coating refers to a liquid or solid material which can form a film on the surface of an object under certain conditions to play a role in protection, decoration or other special functions (insulation, rust prevention, mildew prevention, heat resistance and the like), and is a viscous liquid which is prepared by taking resin, oil or emulsion as a main material, adding or not adding pigment and filler, adding corresponding additives and using organic solvent or water.

The existing environment-friendly coating has single function and only plays a role in decoration, and the functional coating has poor water resistance like a coating capable of purifying air, and can cause loose foaming and even shedding of the coating due to water absorption after being used for a long time in a humid environment, so that the coating can not exert the effect of the coating, the service life of the coating is shortened, and the practicability is reduced.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a moistureproof environment-friendly coating, and solves the problems that a functional coating is poor in moistureproof effect, easy to fall off, reduced in service life and low in practicability.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: a damp-proof environment-friendly coating comprises the following raw materials in parts by weight: 60-75 parts of natural plant resin, 6-12 parts of mica powder, 7-10 parts of epoxidized soybean oil, 3-6 parts of defoaming agent, 4-7 parts of wetting agent, 6-10 parts of anti-settling agent, 1-4 parts of drier, 6-9 parts of plasticizer, 1-3 parts of mildew preventive, 6-10 parts of dispersant, 4-8 parts of stabilizer, 5-10 parts of flame retardant, 20-30 parts of diatomite, 6-10 parts of film forming assistant, 1-5 parts of antioxidant, 0.3-1 part of glass fiber, 0-0.2 part of phenolic fiber and 0.2-0.6 part of asbestos fiber, wherein the diatomite is silicious sedimentary rock of biological origin and mainly comprises remains of ancient diatoms, the diatomite is a porous material with micron-sized pore channels, and countless tiny pores are formed on the surface of the particle, the molecular sieve structure has strong physical adsorption performance and ion exchange performance.

Preferably, the raw material components specifically comprise: 60 parts of natural plant resin, 6 parts of mica powder, 7 parts of epoxidized soybean oil, 3 parts of a defoaming agent, 4 parts of a wetting agent, 6 parts of an anti-settling agent, 1 part of a drier, 6 parts of a plasticizer, 1 part of a mildew preventive, 6 parts of a dispersant, 4 parts of a stabilizer, 5 parts of a flame retardant, 20 parts of diatomite, 6 parts of a film-forming assistant, 1 part of an antioxidant, 0.3 part of glass fiber and 0.2 part of asbestos fiber, wherein the glass fiber, the asbestos fiber and the phenolic fiber can be used as reinforcing agents of the coating, so that the strength of the coating is improved, the coating is not easy to break, the drier is a substance capable of accelerating the drying of a coating film, plays a catalytic role in oxygen absorption and polymerization of a dry oil film, and the antioxidant can delay or inhibit the oxidation process of a polymer, so that the aging of the polymer is prevented and the service life of the.

Preferably, the raw material components specifically comprise: 70 parts of natural plant resin, 9 parts of mica powder, 9 parts of epoxidized soybean oil, 5 parts of a defoaming agent, 5 parts of a wetting agent, 8 parts of an anti-settling agent, 3 parts of a drier, 8 parts of a plasticizer, 2 parts of a mildew preventive, 8 parts of a dispersant, 6 parts of a stabilizer, 7 parts of a flame retardant, 25 parts of diatomite, 8 parts of a film-forming assistant, 3 parts of an antioxidant, 0.6 part of glass fiber, 0.1 part of phenolic fiber and 0.4 part of asbestos fiber, wherein the wetting agent can enable solid materials to be more easily wetted by water. The solid material is wetted by reducing its surface tension or interfacial tension, allowing water to spread on or penetrate the surface of the solid material.

Preferably, the raw material components specifically comprise: 75 parts of natural plant resin, 12 parts of mica powder, 10 parts of epoxidized soybean oil, 6 parts of defoaming agent, 7 parts of wetting agent, 10 parts of anti-settling agent, 4 parts of drier, 9 parts of plasticizer, 3 parts of mildew preventive, 10 parts of dispersant, 8 parts of stabilizer, 10 parts of flame retardant, 30 parts of diatomite, 10 parts of film-forming assistant, 5 parts of antioxidant, 1 part of glass fiber, 0.2 part of phenolic fiber and 0.6 part of asbestos fiber.

Preferably, the defoaming agent is polydimethylsiloxane, chemical state dimethicone of polydimethylsiloxane, colorless or light yellow liquid, is tasteless, has high transparency, heat resistance, cold resistance, small viscosity change along with temperature, water resistance, small surface tension, thermal conductivity, heat conductivity coefficient of 0.134-0.159WIM K and light transmittance of 100%, is nontoxic and tasteless, has physiological inertia property, good chemical stability, good electrical insulation property, weather resistance and hydrophobicity, has high shear resistance, can be used for a long time at-50-200 ℃, has excellent physical properties, can be directly used for damp insulation, damping, shock absorption, defoaming, lubrication, polishing and the like, can be widely used as insulation lubrication, oil dust prevention, dielectric fluid and thermal load editing sub-body, and can be used as defoaming, demolding agent, water-proof, oil dust prevention, dielectric fluid and thermal load editing sub-body, The plasticizer is a mixture of synthetic plant ester and dibutyl phthalate or dioctyl phthalate, the synthetic plant ester belongs to a completely environment-friendly nontoxic plasticizer, has good solubility with various resins, is widely applied to coatings, has a small yellowing tendency on coating films, is low in volatility, is relatively light-resistant and heat-resistant, is commonly used in cellulose nitrate coatings, polyvinyl chloride plastisols, organosol coatings and chlorinated rubber coatings, and has better effect than the single use of the synthetic plant ester and dibutyl phthalate (DBP) or dioctyl phthalate (DOP) if the synthetic plant ester is mixed for use.

Preferably, the dispersant is sodium hexametaphosphate, the dispersant is a surfactant which has two opposite properties of lipophilicity and hydrophilcity in a molecule, can uniformly disperse solid and liquid particles of inorganic and organic pigments which are difficult to dissolve in liquid, and can prevent the particles from settling and coagulating to form an amphiphilic agent required by stable suspension, and the flame retardant is one or more of chlorinated paraffin, decabromodiphenyl oxide, magnesium hydroxide and aluminum hydroxide.

Preferably, the wetting agent is a wetting agent CF-10, and the dispersing agent is a dispersing agent nc.

Preferably, the preparation method of the moisture-proof environment-friendly coating specifically comprises the following steps:

s1, preparing stable modified titanium dioxide Sol by a Sol-Gel method, aging the Sol for 24 hours for later use, putting a proper amount of diatomite into a processor, adding the aged titanium dioxide Sol, uniformly stirring, treating for 2-3 hours under the temperature condition of 30-40 ℃ and the ultrasonic condition of 45KHz frequency to ensure that the Sol enters pores inside the diatomite, taking out the diatomite and drying at 70-85 ℃ to prepare the modified titanium dioxide-diatomite composite material, wherein the modified titanium dioxide-diatomite composite material can decompose harmful gases such as formaldehyde in the air into nontoxic and harmless water and carbon dioxide under the photocatalysis effect, so that the coating has the function of purifying air;

s2, putting a proper amount of natural plant resin, mica powder and epoxy soybean oil into a reaction kettle, hermetically stirring at 200-260 ℃ and 300r/min for 60-100min, cooling to 60-75 ℃ after uniformly mixing the materials, adding a proper amount of defoaming agent and the modified titanium dioxide-diatomite composite material prepared in the step S1, and continuously stirring uniformly;

s3, putting a proper amount of wetting agent, anti-settling agent, drier, plasticizer, mildew preventive, dispersant, stabilizer, flame retardant, film forming additive and antioxidant into the reaction kettle of the step S2, and stirring at the speed of 100 plus materials and 200r/min for 30-60min to uniformly mix the materials;

s4, putting a proper amount of glass fiber, phenolic fiber and asbestos fiber into the reaction kettle, and continuously stirring and uniformly mixing to obtain the environment-friendly coating.

(III) advantageous effects

The invention provides a moistureproof environment-friendly coating. Compared with the prior art, the method has the following beneficial effects: the moisture-proof environment-friendly coating comprises the following raw materials in parts by weight: 60-75 parts of natural plant resin, 6-12 parts of mica powder, 7-10 parts of epoxidized soybean oil, 3-6 parts of defoaming agent, 4-7 parts of wetting agent, 6-10 parts of anti-settling agent, 1-4 parts of drier, 6-9 parts of plasticizer, 1-3 parts of mildew preventive, 6-10 parts of dispersant, 4-8 parts of stabilizer, 5-10 parts of flame retardant, 20-30 parts of diatomite, 6-10 parts of film forming auxiliary agent, 1-5 parts of antioxidant, 0.3-1 part of glass fiber, 0-0.2 part of phenolic fiber and 0.2-0.6 part of asbestos fiber, wherein the preparation method specifically comprises the following steps: s1, preparing stable modified titanium dioxide Sol by a Sol-Gel method, aging the Sol for 24 hours for later use, putting a proper amount of diatomite into a processor, adding the aged titanium dioxide Sol, uniformly stirring, treating for 2-3 hours at 30-40 ℃ and 45KHz ultrasonic frequency, allowing the Sol to enter pores inside the diatomite, taking out the diatomite, and drying at 70-85 ℃ to obtain the modified titanium dioxide-diatomite composite material; s2, putting a proper amount of natural plant resin, mica powder and epoxy soybean oil into a reaction kettle, hermetically stirring at 200-260 ℃ and 300r/min for 60-100min, cooling to 60-75 ℃ after uniformly mixing the materials, adding a proper amount of defoaming agent and the modified titanium dioxide-diatomite composite material prepared in the step S1, and continuously stirring uniformly; s3, putting a proper amount of wetting agent, anti-settling agent, drier, plasticizer, mildew preventive, dispersant, stabilizer, flame retardant, film forming additive and antioxidant into the reaction kettle of the step S2, and stirring at the speed of 100 plus materials and 200r/min for 30-60min to uniformly mix the materials; s4, adding a proper amount of glass fiber, phenolic fiber and asbestos fiber into the reaction kettle, continuously stirring and uniformly mixing to obtain the environment-friendly coating, filling modified titanium dioxide into the pores inside the diatomite to ensure that the coating has a photocatalyst characteristic, and can not absorb moisture in the air when decomposing harmful gases such as formaldehyde in the air, and avoid the coating from being foamed and loose, thereby having a better moisture-proof effect, effectively prolonging the service life of the coating and improving the practicability.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment of the invention provides three technical schemes: the moisture-proof environment-friendly coating specifically comprises the following embodiments:

example 1

S1, preparing stable modified titanium dioxide Sol by using a Sol-Gel method, aging the Sol for 24 hours for later use, putting 20 parts of diatomite into a processor, adding the aged titanium dioxide Sol, uniformly stirring, processing for 2 hours under the ultrasonic condition of 30 ℃ and 45KHz frequency to ensure that the Sol enters pores inside the diatomite, taking out the diatomite, and drying at 70-85 ℃ to prepare the modified titanium dioxide-diatomite composite material, wherein the addition amount of the titanium dioxide Sol is based on the fact that the diatomite can be immersed;

s2, putting 60 parts of natural plant resin, 6 parts of mica powder and 7 parts of epoxidized soybean oil into a reaction kettle, hermetically stirring at 200 ℃ for 60min at a speed of 200r/min, cooling to 60 ℃ after uniformly mixing the materials, adding 3 parts of defoaming agent and the modified titanium dioxide-diatomite composite material prepared in the step S1, and continuously stirring uniformly;

s3, putting 4 parts of wetting agent, 6 parts of anti-settling agent, 1 part of drier, 6 parts of plasticizer, 1 part of mildew preventive, 6 parts of dispersing agent, 4 parts of stabilizer, 5 parts of flame retardant, 6 parts of film forming additive and 1 part of antioxidant into the reaction kettle in the step S2, and stirring at the speed of 100r/min for 30min to uniformly mix the materials;

s4, putting a proper amount of 0.3 part of glass fiber and 0.2 part of asbestos fiber into a reaction kettle, and continuously stirring and uniformly mixing at 100 ℃ to obtain the environment-friendly coating.

Example 2

S1, preparing stable modified titanium dioxide Sol by using a Sol-Gel method, aging the Sol for 24 hours for later use, putting 25 parts of diatomite into a processor, adding the aged titanium dioxide Sol, uniformly stirring, processing for 2.5 hours under the ultrasonic condition of 35 ℃ and 45KHz frequency to enable the Sol to enter pores inside the diatomite, taking out the diatomite, and drying at 80 ℃ to prepare the modified titanium dioxide-diatomite composite material, wherein the addition amount of the titanium dioxide Sol is based on the fact that the diatomite can be immersed;

s2, putting 70 parts of natural plant resin, 9 parts of mica powder and 9 parts of epoxidized soybean oil into a reaction kettle, sealing and stirring at the speed of 250r/min for 80min at the temperature of 230 ℃, cooling to 68 ℃ after uniformly mixing the materials, adding 5 parts of defoaming agent and the modified titanium dioxide-diatomite composite material prepared in the step S1, and continuously stirring uniformly;

s3, putting 5 parts of wetting agent, 8 parts of anti-settling agent, 3 parts of drier, 8 parts of plasticizer, 2 parts of mildew preventive, 8 parts of dispersing agent, 6 parts of stabilizer, 7 parts of flame retardant, 8 parts of film forming additive and 3 parts of antioxidant into the reaction kettle in the step S2, and stirring at the speed of 150r/min for 50min to uniformly mix the materials;

and S4, putting 0.6 part of glass fiber, 0.1 part of phenolic fiber and 0.4 part of asbestos fiber into a reaction kettle, and continuously stirring and uniformly mixing at 110 ℃ to obtain the environment-friendly coating.

Example 3

S1, preparing stable modified titanium dioxide Sol by using a Sol-Gel method, aging the Sol for 24 hours for later use, putting 30 parts of diatomite into a processor, adding the aged titanium dioxide Sol, uniformly stirring, processing for 3 hours under the temperature condition of 40 ℃ and the ultrasonic condition of frequency of 45KHz, enabling the Sol to enter pores inside the diatomite, taking out the diatomite, and drying at 85 ℃ to obtain the modified titanium dioxide-diatomite composite material, wherein the addition amount of the titanium dioxide Sol is based on the fact that the diatomite can be immersed;

s2, putting 75 parts of natural plant resin, 12 parts of mica powder and 10 parts of epoxy soybean oil into a reaction kettle, hermetically stirring at the temperature of 260 ℃ for 100min at the speed of 300r/min, cooling to 75 ℃ after uniformly mixing the materials, adding 6 parts of defoaming agent and the modified titanium dioxide-diatomite composite material prepared in the step S1, and continuously stirring uniformly;

s3, putting 7 parts of wetting agent, 10 parts of anti-settling agent, 4 parts of drier, 9 parts of plasticizer, 3 parts of mildew preventive, 10 parts of dispersing agent, 8 parts of stabilizer, 10 parts of flame retardant, 10 parts of film forming additive and 5 parts of antioxidant into the reaction kettle in the step S2, and stirring at the speed of 200r/min for 60min to uniformly mix the materials;

and S4, putting 1 part of glass fiber, 0.2 part of phenolic fiber and 0.6 part of asbestos fiber into a reaction kettle, and continuously stirring and uniformly mixing at 120 ℃ to obtain the environment-friendly coating.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A damp-proof environment-friendly coating is characterized in that: the raw materials comprise the following components in parts by weight: 60-75 parts of natural plant resin, 6-12 parts of mica powder, 7-10 parts of epoxidized soybean oil, 3-6 parts of defoaming agent, 4-7 parts of wetting agent, 6-10 parts of anti-settling agent, 1-4 parts of drier, 6-9 parts of plasticizer, 1-3 parts of mildew preventive, 6-10 parts of dispersing agent, 4-8 parts of stabilizer, 5-10 parts of flame retardant, 20-30 parts of diatomite, 6-10 parts of film forming auxiliary agent, 1-5 parts of antioxidant, 0.3-1 part of glass fiber, 0-0.2 part of phenolic fiber and 0.2-0.6 part of asbestos fiber.

2. The moisture-proof environment-friendly paint as claimed in claim 1, wherein: the raw material components specifically comprise: 60 parts of natural plant resin, 6 parts of mica powder, 7 parts of epoxidized soybean oil, 3 parts of defoaming agent, 4 parts of wetting agent, 6 parts of anti-settling agent, 1 part of drier, 6 parts of plasticizer, 1 part of mildew preventive, 6 parts of dispersing agent, 4 parts of stabilizer, 5 parts of flame retardant, 20 parts of diatomite, 6 parts of film-forming assistant, 1 part of antioxidant, 0.3 part of glass fiber and 0.2 part of asbestos fiber.

3. The moisture-proof environment-friendly paint as claimed in claim 1, wherein: the raw material components specifically comprise: 70 parts of natural plant resin, 9 parts of mica powder, 9 parts of epoxidized soybean oil, 5 parts of a defoaming agent, 5 parts of a wetting agent, 8 parts of an anti-settling agent, 3 parts of a drier, 8 parts of a plasticizer, 2 parts of a mildew preventive, 8 parts of a dispersant, 6 parts of a stabilizer, 7 parts of a flame retardant, 25 parts of diatomite, 8 parts of a film-forming assistant, 3 parts of an antioxidant, 0.6 part of glass fiber, 0.1 part of phenolic fiber and 0.4 part of asbestos fiber.

4. The moisture-proof environment-friendly paint as claimed in claim 1, wherein: the raw material components specifically comprise: 75 parts of natural plant resin, 12 parts of mica powder, 10 parts of epoxidized soybean oil, 6 parts of defoaming agent, 7 parts of wetting agent, 10 parts of anti-settling agent, 4 parts of drier, 9 parts of plasticizer, 3 parts of mildew preventive, 10 parts of dispersant, 8 parts of stabilizer, 10 parts of flame retardant, 30 parts of diatomite, 10 parts of film-forming assistant, 5 parts of antioxidant, 1 part of glass fiber, 0.2 part of phenolic fiber and 0.6 part of asbestos fiber.

5. The moisture-proof environmental protection paint according to any one of claims 1 to 4, wherein: the defoaming agent is polydimethylsiloxane, and the plasticizer is a mixture of synthetic plant ester and dibutyl phthalate or dioctyl phthalate.

6. The moisture-proof environmental protection paint according to any one of claims 1 to 4, wherein: the dispersing agent is sodium hexametaphosphate, and the flame retardant is one or more of chlorinated paraffin, decabromodiphenyl oxide, magnesium hydroxide and aluminum hydroxide.

7. The moisture-proof environmental protection paint according to any one of claims 1 to 4, wherein: the wetting agent is a wetting agent CF-10, and the dispersing agent is a dispersing agent nc.

8. The moisture-proof environmental protection paint according to any one of claims 1 to 4, wherein: the preparation method specifically comprises the following steps:

s1, preparing stable modified titanium dioxide Sol by a Sol-Gel method, aging the Sol for 24 hours for later use, putting a proper amount of diatomite into a processor, adding the aged titanium dioxide Sol, uniformly stirring, processing for 2-3 hours under the temperature condition of 30-40 ℃ and the ultrasonic condition of 45KHz frequency to ensure that the Sol enters pores inside the diatomite, taking out the diatomite and drying at 70-85 ℃ to prepare the modified titanium dioxide-diatomite composite material, wherein the addition amount of the titanium dioxide Sol is based on the fact that the diatomite can be immersed;

s4, putting a proper amount of glass fiber, phenolic fiber and asbestos fiber into the reaction kettle, and continuously stirring and uniformly mixing at the temperature of 100-120 ℃ to obtain the environment-friendly coating.