Background:
In order to effectively protect people's personal and property safety and reduce fire hazards, the Ministry of urban and rural housing and construction and the quality inspection bureau jointly issued the code for fire protection design of interior decoration of buildings on July 31, 2017, which was implemented from April 1, 2018.
This document is applicable to the interior decoration and fire protection design of industrial and civil buildings. The interior decoration design of buildings should actively use fire-resistant and fireproof materials, avoid using materials that generate a lot of smoke or toxic gases when burning, so as to achieve safety and applicability, advanced technology, and reasonable economy.
In some specific places, such as schools, hospitals, museums, underground civil air defense, warehouses, subways, airports, grain depots, tunnels, hotels and other places with dense flow, fire retardant coatings with safety characteristics must be used.
Why is there a fire?
There are three conditions for combustion of objects:
(a) The substance itself has Flammability;
(b) The temperature shall reach the ignition point of combustible;
(c) Combustibles are in full contact with oxygen (or air).
According to the data of prospective economic research institute, in 2018, there were 1157000 fire rescue teams across the country, breaking through 1 million for the sixth consecutive year. 12.732 million fire rescue personnel were dispatched, exceeding 12 million for the fifth consecutive year. 2.193 million fire vehicles were dispatched, exceeding 2.1 million for the third consecutive year.
In 2019, 233000 fires were reported, 1335 people were killed, 837 injured and 3.612 billion yuan of direct property loss.
The main reason for the fire is the burning of polymer synthetic materials. Modern polymer synthetic materials mainly include chemical textiles, such as clothing, curtains, carpets and other items. There are also a large number of flammable and combustible materials used in modern decoration, such as various kinds of plates, plastics, chemical fibers and other polymer materials.
These materials will not only promote the fire to increase the temperature of the fire site, but also extend the combustion time, and decompose a large number of toxic gases such as carbon monoxide, nitrogen oxides, etc. in a very short time, people will be poisoned and die.
A large number of data show that toxic smoke is the first killer in the fire.
Toxic smoke contains carbon monoxide, hydrogen sulfide, cyanide and other harmful substances.
The affinity between carbon monoxide and hemoglobin is 210 times greater than that of oxygen. When the content of carbon monoxide in the air reaches 0.1%, 50% carboxyhemoglobin and 50% oxyhemoglobin will be formed in the blood, resulting in severe carbon monoxide poisoning.
Among them, when the concentration of carbon monoxide reached 1.28%, people died immediately in such an environment for 3 minutes. However, the oxygen content in the smoke in the fire scene in a few minutes will be far lower than 21%, and the carbon monoxide content will be far higher than 0.1%, which can make people die in a short time.
Cyanide has a very strong cytotoxic effect. When it enters the body, it will quickly combine with cytochrome oxidase to form cyaniding high iron cytochrome oxidase, which will make cytochrome lose the ability to transmit electrons, break the respiratory chain, cause cell death, and cause short-term death.
What is flame retardant? What is fire resistance? What is fire resistance? Nanfeng Technology Department will answer for you immediately, please look down boldly!
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Traditional emulsion paint
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The emulsion paint on the market is a water dispersible coating. It is a coating made of synthetic resin emulsion as the base material and filled with various additives after grinding and dispersing. It is an organic compound material. The flame retardant grade can only reach B2 grade, and it is easy to mould, alkaline resistance, easy to remove the coating, and has poor resistance to dirt.
High quality latex paint shall have not only the product quality inspection certificate of the enterprise, but also the inspection report of the national chemical building materials product inspection center. These two quality certificates are the necessary conditions for products to enter the project.
According to industry statistics, at present, there are more than 2000 latex paint manufacturers in China, less than 10% of which have obtained the above two certificates.
CCTV finance and economics channel "consumption claim" once reported that when testing the fire performance of wall materials on the market, when the lighter is aimed at the wallpaper, the wallpaper is ignited, and it can be clearly seen that sparks are still splashing around the burned wallpaper.
When the flame is close to the traditional emulsion paint, a few seconds later, the surface begins to turn yellow, black, bubble, and even crack, de powder and explode seriously.
It can be seen that the fire-resistant performance of the traditional wall materials on the market can not reach the A-level standard, let alone whether there is fire-resistant performance.
Not only that, there is a saying in the paint industry, "no aldehyde, no glue, no benzene, no paint". As the name implies, both glue and paint have a share. When burning, a large number of harmful substances will be released. If there is a fire, not only the fire can not be reduced, but even worse, the released toxic gas will cause suffocation of trapped people!
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inorganic coating
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At present, inorganic coatings are mainly made of alkali silicate or silica sol, which are mainly made up of pigments, fillers and auxiliaries.
It is worth noting that until 2020, the state has not yet issued the relevant standards of interior wall inorganic coating, and there have been a lot of disputes on some properties, such as the provisions of organic content, the classification of combustion level or excellent antibacterial and mildew resistance. Nanfeng Technology Department believes that there is no completely inorganic water-based coating on the market. It still needs a certain amount of organic emulsion to provide strength. To some extent, it is difficult to distinguish the so-called inorganic coating and high PVC latex paint (a large number of low thermal conductivity inorganic powder fills).
Recently, we have seen some enterprises propagandizing inorganic coatings, including those that can be used for exterior walls or interior walls, and can play a role in fire prevention and other related functions.
But really?
After sampling survey of inorganic coatings in the market:
Not all inorganic coatings from all manufacturers have so-called "fire resistance" performance under the system (i.e. combustion performance grade A2)
There is no so-called fire performance statement in the current standard system. JG / T 26-2002 "exterior inorganic building coating" is the only inorganic coating standard in China at present, and its relevant requirements do not have relevant fire performance (combustion performance) requirements. According to Nanfeng Technology Department, the qualified inorganic coating belongs to non fire resistant material.
Therefore, for indoor inorganic coatings, the current standard system can not prove the content of "inorganic" in the end, which is easy to fake. For thin coating decoration, it should focus on the base wall (combustion performance or fire resistance), rather than the fire protection of inorganic coating, because it can not prevent fire! At present, the so-called inorganic coating is at most a low conductivity hot water coating, which has certain "fire resistance" and poor protection for the substrate.
At the same time, according to experts, the real pure inorganic coating,
Its combustion level can reach A1
Its combustion duration is 0
So there is no real inorganic coating on the market.
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Nanfeng No.1 fireproof water paint
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Fire retardant coating refers to a kind of coating which can prevent the spread of fire or isolate the fire source, extend the ignition time of base material or increase the thermal insulation performance to delay the damage time of structure when the fire occurs.
At present, the only recognized standard of domestic facing fire retardant coating is GB 12441-2018, which explicitly refers to the concept of fire retardant coating, the requirements of usage and fire protection time, and the real meaning of fire retardant coating.
Nanfeng No.1 fire-proof water paint is a patented product of Fujian Nanfeng Fire Protection Technology Co., Ltd., which belongs to water-based paint. It is the first case in China to improve the engineering fire-proof paint used in airports, five-star hotels, large shopping malls and high-level clubs, which is applied in civil home decoration. The product has decorative, environmental protection and special fire-proof functions.
Our company's series of fire-resistant water paint, all refer to the fire protection standard of GB 12441-2018 and the interior wall coating standard of GB / T 9756-2018, and follow the more strict enterprise standard of Nanfeng No.1 fire-resistant water paint, and the finish meets the environmental protection requirements of green paint in GB / T 35602-2017. Among them, the environmental protection index is far higher than the national standard, the formaldehyde content is 1 / 20 of the national standard, the VOC content of harmful volatile matter is 1 / 18 of the national standard, the product has its own formaldehyde decomposition function, the effective formaldehyde purification performance is 91.2%, and the durable performance is 78.4%. It can be considered to have both green health and fire safety.
Comparison between fireproof paint and common paint
Common:
1. The fineness of raw materials is easy to control, the oil absorption value is low, the paint film is fuller and softer, the texture is tough, and the decorative effect is very good
2. Aquatic product, no organic diluent, no benzene (benzene, toluene, xylene), no solvent
3. Excluding TDI
4. Formaldehyde free
5. Tasteless, non irritant, low construction flavor
Nanfeng No.1 fireproof water paint:
1. Thermal insulation
2. Light and high strength
3. Fire resistant and flame retardant
4. Sound absorption and sound insulation
5. Not easy to aging and weathering
6. No release of smoke and toxic gases
7. High hardness
8. Protect the base material, which can be painted twice after ignition
summary
The intumescent fireproof coating is fireproof;
Inorganic coatings are fire resistant and flame retardant;
Common latex paint is flame retardant.
Inorganic coating, focusing on fire resistance and flame retardancy, has passed Grade A2 in GB / T 8624-2012, i.e. continuous combustion time
< 20s, no fire resistance is mentioned. In the standard, the combustion grade of the material itself is divided, and only the inorganic coating is recognized as the refractory.
Fire retardant coating, focusing on fire protection, follows the highest domestic mandatory standard GB 12441-2018, and focuses on the concept of fire protection time. The real significance is not only to protect itself while protecting the substrate from high temperature damage, but also to have a strong function of inhibiting the production of toxic smoke, so as to protect the affected people from suffocation.
"Safety" and "environmental protection" are the requirements for coating industry after people attach great importance to ecological environment protection, and also the development direction of coating. Nanfeng No.1 fire-proof water paint will usher in the great development of the industry. Compared with the fully competitive traditional paint market, the home fire water paint market is a strategic opportunity for domestic paint companies to seize the "industry outlet" to rapidly develop the offline channel "horse racing enclosure" and realize the overtaking at the corner. The next few years will usher in the fire-proof water paint industry blowout!
Additional advertising
Our company has the key technology of home fire retardant coating: ultra-high fineness three in one fire retardant expansion agent. To meet all the requirements of home decoration and environmental protection, our company is considering to provide three in one fire-resistant expansion materials for the paint enterprises with high harmony and common concept for common development.
Note: the above opinions are the results of our company's collection of a large number of data, parallel testing of a large number of water-based coatings and comprehensive analysis, and our company has the final interpretation right.
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