CN112341935A - Paint with sterilization function - Google Patents

Abstract

The invention particularly relates to a bactericidal functional paint which is prepared from the following raw materials: polyvinyl butyral, rosin resin, linseed oil, water, pigment, zeolite powder, drying liquid, nano silver and nano titanium. The invention has the beneficial effects that: the added nano silver and nano titanium can effectively sterilize to 99.99 percent and has high antibacterial effect and wear resistance.

Description

Paint with sterilization function

Technical Field

The invention relates to the technical field of paint, in particular to paint with a sterilization function.

Background

With the further improvement of the requirements of people on home decoration, green, environment-friendly and low-carbon life becomes the mainstream of the era. Meanwhile, the development direction of the interior wall paint for home decoration tends to be high-end, so that the interior wall paint is required to have good scrubbing resistance, rheological property, brushing property and the like, and has higher requirements on the aspects of greenness, environmental protection, other functions and the like.

Over the past few years, paint has become one of the ten major hazards of world environmental pollution. There are data showing that the pollution caused by paint is second only to the harm of automobile exhaust, and is the second place of global environmental pollution sources. The paint contamination is mainly derived from harmful substances contained in its composition. Modern paints use a large amount of organic solvents, various toxic auxiliaries, preservatives and pigment fillers containing heavy metals, and may produce harmful substances during production and use, thereby causing environmental pollution and affecting human health. The hazards to paint come from three major aspects, the first being the total volatile organic content of the paint, known as the VOC content, which constitutes a direct hazard to the environment; secondly, the toxicity of the solvent can cause direct harm to personnel in the production and construction processes; thirdly, the safety problem for users is that the volatilization of the solvent is a long-term slow process, and the solvent can cause harm to human bodies if being toxic.

The new limit on harmful substances in interior wall paint of interior decoration and finishing materials is implemented as early as 2008 in 10 months and 1 day, and environmental protection, ultralow VOC and the like are more advanced. In the implementation period of approximately 6 years, the paint enterprises are continuously searching for new ideas. The product structure of interior wall paint is adapted to the market all the time, in the middle of constantly adjusting, proposes from environmental protection, low carbon, green concept, and more paint producers have aimed the future development direction at green environmental protection, categories such as more additional functions to increase the added value of product. Therefore, functional paints for environmental protection, indoor air environment purification and the like of various brands are frequently like cow hair, and users of Chinese home decoration purchase the functional paints, which is a keen desire, generally have the realization of unsuspecting but not accepting results. Particularly, it is important to develop products that can realize "green and healthy products", "guarantee product performance", and completely meet customer requirements.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide the bactericidal paint with 9.99 percent of effective sterilization and high wear resistance.

The invention describes a bactericidal functional paint, wherein: the composition of the raw materials is as follows: polyvinyl butyral, rosin resin, linseed oil, water, pigment, zeolite powder, drying liquid, nano silver and nano titanium.

Specifically, the content of each component is as follows: 3-13% of polyvinyl butyral; 5-11% of rosin resin; 20-30% of linseed oil; 15-17% of water, 2-5% of pigment, 30-40% of zeolite powder, 7-10% of drying liquid, 5-10% of nano silver and 5-10% of nano titanium.

The invention discloses a method for preparing paint with a sterilizing function, which comprises the following steps: the preparation method comprises the following steps:

a) extracting according to the percentage of each content: 7% of polyvinyl butyral, 6% of rosin resin, 20% of linseed oil, 15% of water, 2% of pigment, 43% of zeolite powder and 7% of drying liquid;

b) putting 7% of polyvinyl butyral, 6% of rosin resin, 20% of linseed oil, 43% of zeolite powder and 15% of water into processing equipment, controlling the temperature at 45-75 ℃, and then stirring for 10-15 minutes to enable the polyvinyl butyral, the rosin resin, the linseed oil, the zeolite powder and the water to be uniform to form thinner paint;

c) then adding 2% of pigment into the paint, stirring to form colored paint, then adding 7% of drying liquid, controlling the temperature to be 35-50 ℃, stirring, finally, mixing and adding 8% of nano silver and 10% of nano titanium, and stirring for more than 10 minutes to form colored paint;

d) and finally, the paint is installed in the paint cylinder through special equipment.

The invention has the beneficial effects that: the added nano silver and nano titanium can effectively sterilize to 99.99 percent and has high antibacterial effect and wear resistance.

Detailed Description

The present invention is described in detail below with reference to specific examples.

The invention describes a bactericidal functional paint, wherein: the composition of the raw materials is as follows: polyvinyl butyral, rosin resin, linseed oil, water, pigment, zeolite powder, drying liquid, nano silver and nano titanium.

Specifically, the content of each component is as follows: 3-13% of polyvinyl butyral; 5-11% of rosin resin; 20-30% of linseed oil; 15-17% of water, 2-5% of pigment, 30-40% of zeolite powder, 7-10% of drying liquid, 5-10% of nano silver and 5-10% of nano titanium.

The preparation method of the paint with the sterilization function is characterized by comprising the following steps: the preparation method comprises the following steps:

a) extracting according to the percentage of each content: 7% of polyvinyl butyral, 6% of rosin resin, 20% of linseed oil, 15% of water, 2% of pigment, 43% of zeolite powder and 7% of drying liquid;

b) putting 7% of polyvinyl butyral, 6% of rosin resin, 20% of linseed oil, 43% of zeolite powder and 15% of water into processing equipment, controlling the temperature at 45-75 ℃, and then stirring for 10-15 minutes to enable the polyvinyl butyral, the rosin resin, the linseed oil, the zeolite powder and the water to be uniform to form thinner paint;

c) then adding 2% of pigment into the paint, stirring to form colored paint, then adding 7% of drying liquid, controlling the temperature to be 35-50 ℃, stirring, finally, mixing and adding 8% of nano silver and 10% of nano titanium, and stirring for more than 10 minutes to form colored paint;

d) and finally, the paint is installed in the paint cylinder through special equipment.

Nanosilver, which may be regarded as an antimicrobial material or substance, is the antimicrobial action of a material, generally speaking, the adverse effects and consequences of a material on the viability of microorganisms, and the most concentrated of these adverse effects and consequences is the effects on the growth, reproduction and death of microorganisms. I.e., the effect of inhibiting the growth, reproduction, or killing of microorganisms. The relationship between the antibacterial material and the microorganism can be regarded as the relationship between the microorganism and the environment, particularly the environment with toxicity to the microorganism, and the antibacterial action mechanism of the material has the following aspects. First, interfering with cell wall synthesis. The important component of the bacterial cell wall is peptidoglycan, the antibacterial material has interference effect on the cell wall, and the connection between a polysaccharide chain and tetrapeptide crosslinking is mainly inhibited, so that the integrity of the cell wall is lost, the protection effect on osmotic pressure is lost, and thalli are damaged to die. Secondly, the cell membrane can be damaged. Cell membranes are an important component of the vital activity of bacterial cells. Therefore, if the cell membrane is damaged or destroyed, the bacteria will die. And thirdly, inhibiting the synthesis of protein. The synthesis of the protein is altered and stopped, and the bacteria are killed. Fourthly, interfering the synthesis of nucleic acid. Generally, the replication of genetic information is hindered, including the synthesis of DNA and RNA, and the transcription of mRNA by a DNA template.

Nano-silver slow-release sterilization mechanism

The nano-silver slow-release sterilization and antibiosis mechanism means that the antibacterial agent slowly releases Ag + in the using process, because the Ag + can destroy the bacterial cell membrane or strongly attract the loose base of enzyme protein in the bacterial body under a very high concentration, and the Ag + and the bacterial cell membrane are quickly combined together, so that the activity of the bioactive enzyme of the bacteria is reduced, and the antibacterial agent has an antibacterial effect. Therefore, the inorganic antibacterial agent can exert an antibacterial effect for a long time by slowly releasing Ag +. The reaction process is as follows: this reaction causes protein coagulation, destroys the activity of the microbial synthase, interferes with the synthesis of the microbial DNA, and causes the microorganism to lose its ability to divide and proliferate and die. At the same time, the binding of Ag + and proteins also destroys the electron transport system, respiratory system and substance transport system of the microorganism. Active oxygen antibacterial mechanism of nano silver the active oxygen antibacterial mechanism of nano silver is considered as follows: the reduction potential of silver in a high oxidation state is extremely high, and under the action of light, the antibacterial agent and water or air act to generate active oxygen and hydroxyl OH, so that the silver has a strong redox effect. In fact, one of the main components that make up the structure of bacterial cell membranes is lipids, the majority of which are phospholipids. The phospholipid molecules are distributed on the inner surface and the outer surface of a cell membrane by forming a hydrophilic head of the phospholipid molecules by polar genes mainly comprising phosphate groups or phosphorylcholine groups; the hydrophobic group with the neutral long-chain fatty acid alkyl group forms the hydrophobic tail part of the lipid molecule and is distributed in the central area of the membrane. The length of the fatty acid hydrocarbon chain and the number of double bonds in the lipid molecule directly affect the properties of the membrane. Thus, when a bacterial microorganism is near or at the surface of the antimicrobial material, the hydroxyl OH radicals generated around the antimicrobial material and attacking the bacterial cell membrane, result in: (a) characterizing a-helix content change in the secondary structure of the protein; (b) 1727cm-1 IR peak intensity of c =0 double bond increased, and orientation of glyceryl backbone changed; (C) increased genes close to the polar region C ═ 0; (d) c =0 double bonds decrease, hydrocarbon chain unsaturation decreases; (e) the secondary structure of the membrane protein is difficult to recover after being damaged, and the damage has irreversibility. Thereby providing the material with a durable antibacterial effect.

Nano-silver sterilization mechanism

After the nano silver contacts the bacteria, the protein of the bacteria is damaged, and the bacteria die, wherein the contact principle is based on electric adsorption, because the cell membrane has negative charges and the nano silver has positive charges, the cell membrane and the nano silver generate electric adsorption to be firmly combined, and as a result, the nano silver penetrates through the cell membrane and enters the bacteria body to generate chemical reaction with the thiamine (-SH) of the protein in the bacteria body;

this reaction causes protein coagulation, which destroys the activity of bacterial synthetases, interferes with the synthesis of bacterial DNA, and causes the bacteria to renew and lose their ability to proliferate and die. Meanwhile, the combination of the silver Ag and the protein also destroys the absorption system and the material transmission system of the bacteria, and in addition, the silver Ag has higher oxidation-reduction potential (+ 0.798ev,25C), so the bacteria are killed, released from thalli, and continue to generate gasification reaction with other organic bacteria to kill germs again, and the bactericidal and antibacterial effects are generated repeatedly.

Under the condition of no light, the sterilization rate of the nano titanium is more than 80%, under the condition of common fluorescence, the sterilization effect can be increased by 5%, and the sterilization degree of the nano titanium within 30 minutes after being irradiated by sunlight reaches more than 95%.

There are several embodiments of the invention as follows:

the first embodiment:

3% of polyvinyl butyral; 5% of rosin resin; 20% of linseed oil; 15% of water, 2% of pigment, 30% of zeolite powder, 7% of drying liquid, 5% of nano-silver and 5% of nano-titanium.

Second embodiment:

6% of polyvinyl butyral; 6 percent of rosin resin; 25% of linseed oil; 16% of water, 3% of pigment, 35% of zeolite powder, 8% of drying liquid, 8% of nano-silver and 8% of nano-titanium.

The third embodiment:

13% of polyvinyl butyral; 11% of rosin resin; 30% of linseed oil; 17% of water, 5% of pigment, 40% of zeolite powder, 10% of drying liquid, 10% of nano-silver and 10% of nano-titanium. .

The three embodiments are subjected to sterilization detection, the detection method 'sterilization technical rule range' 2002 tablet-2.12.10, and the sterilization objects are as follows: paint is coated on the working table; the time was measured after 10 minutes. The average log kill value of the sterilization sample is greater than or equal to 1, which can be judged asAnd (5) sterilizing to be qualified. Wherein the total virus number is 3.85 gamma 10⁴The Virus inactivation ratio (Virus inactivation ratio) is more than 99.99, and the average inactivation log value (KL) is more than 4.08.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, so any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (3)

1. The bactericidal functional paint is characterized in that: the composition of the raw materials is as follows: polyvinyl butyral, rosin resin, linseed oil, water, pigment, zeolite powder, drying liquid, nano silver and nano titanium.

2. The paint with bactericidal function according to claim 1, characterized in that: the contents of the components are respectively as follows: 3-13% of polyvinyl butyral; 5-11% of rosin resin; 20-30% of linseed oil; 15-17% of water, 2-5% of pigment, 30-40% of zeolite powder, 7-10% of drying liquid, 5-10% of nano silver and 5-10% of nano titanium.

3. The preparation method of the paint with the sterilization function is characterized by comprising the following steps: the preparation method comprises the following steps:

a) extracting according to the percentage of each content: 7% of polyvinyl butyral, 6% of rosin resin, 20% of linseed oil, 15% of water, 2% of pigment, 43% of zeolite powder and 7% of drying liquid;

b) putting 7% of polyvinyl butyral, 6% of rosin resin, 20% of linseed oil, 43% of zeolite powder and 15% of water into processing equipment, controlling the temperature at 45-75 ℃, and then stirring for 10-15 minutes to enable the polyvinyl butyral, the rosin resin, the linseed oil, the zeolite powder and the water to be uniform to form thinner paint;

c) then adding 2% of pigment into the paint, stirring to form colored paint, then adding 7% of drying liquid, controlling the temperature to be 35-50 ℃, stirring, finally, mixing and adding 8% of nano silver and 10% of nano titanium, and stirring for more than 10 minutes to form colored paint;

d) and finally, the paint is installed in the paint cylinder through special equipment.