Coating classification: mould proof and flame retardant tunnel decoration coating

Core tip: Product Introduction: At present, there are many manufacturers producing tunnel decorative coating in China Although the decorative performance has reached a certain standard, its decorative performance is very poor, and the thick coating is easy to produce mildew and fall off under the condition of long-term humidity, so it does not have flame retardancy, which leads to its decorative performance greatly reduced The anti mildew and flame retardant decorative coating adds nano materials and various existing water properties Compared with fireproof coating, it has the characteristics of flame retardant, mildew proof, water-proof, moisture-proof adhesion, no pulverization, no falling off, strong decorative, non-toxic and tasteless, long service life, convenient construction, etc., especially Application scope and advantages of roller ceramic coating Recommended introduction: the surface of ceramic rubber plate used for roller ceramic coating is cast into durable rubber plate by hundreds of independent small ceramic pieces Each ceramic piece has raised characteristics Under general conveyor belt pressure, thousands of unique cast bumps can produce positive traction, prevent slipping and extend the service life of conveyor belt roller At the same time, the bottom layer adopts high-quality rubber, which has strong elasticity and can play a good impact resistance role The scope of application of roller ceramic coating is one three six 83857180 (the same as V) 1 Roller coating in extremely harsh working environment 2 The belt joint is not suitable for fixing with iron buckle; 3 It is suitable for leather Home of coatings: Product Introduction: At present, there are many manufacturers producing tunnel decorative coating in China Although the decorative performance has reached a certain standard, its decorative performance is very poor, and the thick coating is easy to produce mildew and fall off under the condition of long-term humidity, so it does not have flame retardancy, which leads to its decorative performance greatly reduced The anti mildew and flame retardant decorative coating adds nano materials and various existing water properties Compared with fire retardant coating, it has the advantages of flame retardant, mildew proof, waterproof, moisture-proof adhesion, no pulverization, no falling off, strong decoration, no poison and no smell, long service life and convenient construction Especially after the modification of nano materials, the alkali resistance, water resistance, scrub resistance and pollution resistance have been greatly improved It is suitable for the mould proof, flame retardant and protection of high-speed highway (railway) tunnels, subsea tunnels and urban subway tunnels Characteristics: the mould proof and flame-retardant tunnel decoration coating is developed on the basis of the requirements of the flame-retardant, waterproof, moisture-proof, mould proof, corrosion-resistant and decorative properties of the tunnel engineering, and the characteristics of the interior and exterior wall coating, mould proof coating and anticorrosive coating are integrated It has excellent physical and chemical properties, fire-resistant and flame-retardant performance of 0.5-1 hour, excellent moisture, mold and corrosion resistance, and can be mixed into various colors according to the construction requirements According to the coating thickness and performance characteristics, the product not only has the performance characteristics of decorative coating, but also has the following performance characteristics: 1) mould proof and flame-retardant tunnel decorative coating improves the adhesion performance between the coating and the fire-proof layer on the tunnel surface, as well as the tensile and bending strength of the decorative coating, which can prevent the volume shrinkage, cracking and other problems in the curing process of the tunnel decorative coating 2) Due to the existence of flexible polymer, it improves the toughness of mildew resistant and flame-retardant tunnel decoration coating to the high and low temperature changes of the natural environment, reduces the possible quality problems caused by thermal expansion and cold shrinkage, and also reduces the corrosion of the acid tail gas discharged by the automobile on the inner wall of the tunnel 3) The mould proof and flame-retardant coating for tunnel decoration contains new composite materials In case of high temperature, the new composite materials are sintered gradually, which consumes a lot of energy and delays the temperature rise of the coating 4) Mould proof and flame retardant coating for tunnel decoration has corrosion resistance, weather resistance and pollution reduction 5) polymer emulsion in mould proofing and flame retardant tunnel decoration coatings also has functions of mildew proofing and water proofing 6) Mould proof and flame retardant tunnel decoration coating has superior washability, acid and alkali resistance and pollution resistance 7) The service life of mould proof and flame retardant coating for tunnel decoration is 8-10 years 8) Mould proof and flame retardant tunnel decoration coating has been used in dark and humid environment for a long time, and its mould resistance is outstanding Classification: it can be divided into thin type and thick type: the thickness of thin type coating is generally 2 mm, and the fire resistance limit can be more than 30 min; the thickness of thick type coating is generally 10 mm, and the fire resistance limit can be more than 60-90 min Ingredients: raw materials, water, acrylic emulsion, inorganic flame retardants, filler m/g 15 - 2020 - 2535 - 4020 - 251 - 3 production: the appropriate dispersing agent, wetting agent and defoamer are dispersed in the quantitative water dispersible reserve, and the stirring speed is 800r/min Increase the rotational speed (about 2500r/min), stir 15 to 20min, then grind the sand to the fineness of 40 - 50 m; then, in order to prevent demulsification, the speed of the paint is reduced to 800r/min when adding the emulsion, then added other auxiliaries and so on, stirring evenly; adjusting the viscosity, adjusting the pH value is 8 - 9, that is, finished product Inspection standard: the fire proof performance of the mould proof and flame retardant tunnel decorative coating is tested according to GB 12441 - 2005 "decorative fire retardant coating"; the detection of mould resistance is detected according to GB/T1741 2007 "film mould resistance test method"; other indicators are based on GB/T9755 2001 "synthetic resin emulsion exterior wall coating" and GB/T9756 2009 "synthetic resin emulsion interior wall coating" Technical index: the test item standard requires that the measured value method standard be in the state of vessel after mixing, without caking, without caking Q / BFH 03-2006 construction scraping without caking Q / BFH 03-2006 surface dry time / h ≤ 54.5 GB / T 1728 bonding strength / MPa ≥ 0.21.13 JG / T 24 alkali resistance [soak in saturated Ca (OH) 2 solution for 24 hours] No cracking, no blistering, no falling off, slight loss of light and discoloration allowed 48h no abnormality GB / T 9265 cold and hot cycling resistance 15 times no cracking, no falling off, no cracking, no falling off JG / T 25 water resistance (standing in water for 24h) no cracking, no foaming, no falling off, slight loss of light and discoloration allowed 96h no abnormality GB / T 1733 scrub resistance 1000 times no leakage of bottom GB / T 9266 pollution resistance ≤ 15 12 GB / T 9755 flame resistance time / min ≥ 15 33 GB 12441-20058 flame propagation ratio ≤ 25 12 GB 12441-20058 appropriate loss / g ≤ 5.03.4 GB 12441-20058 mildew resistance / grade-0 - note: mildew resistant coating rating standard: grade 0 - no obvious mold growth at 50 times magnification; grade 1 - no or very difficult to see mold growth by naked eyes, but obvious mold growth can be seen under magnifier; Level 2 - mildew visible to the naked eye, covering 10% - 30% of the sample surface; Level 3 - mildew visible to the naked eye, covering 30% - 60% of the sample surface; level 4 - mildew visible to the naked eye, covering more than 60% of the sample surface Theoretical dosage: 2.5-3 square meters per kilogram Construction method: machine spraying, manual coating, roll coating and brush coating Construction method: 1) treat the surface of the tunnel concrete body, repair and polish the unevenness, and remove the floating ash and sundries 2) One coat of sealing primer is applied It is recommended to use the water-based epoxy alkali resistant sealing primer produced by our company The product has good permeability, strong adhesion, good coordination with the coating, and can quickly block the capillary channel of the concrete body, play the role of moisture-proof layer, and effectively improve the project quality 3) Mix the anti mildew and flame retardant decorative coating evenly If the paint paste is too thick, dilute it with a little water 4) During the construction, the scraping batch method is used for the construction, the film thickness is not less than 1.7mm, the amount of fire-retardant and waterproof putty is about 2kg / m3, the surface coating method is spray coating or roller coating, the amount is about 0.5kg/m2, and the film thickness is about 0.2mm 5) After the completion of construction, it is required to check after ventilation and drying for 24 hours, and the unevenness can be repaired properly Packaging, storage and transportation: clean, dry and sealed packaging shall be used Packaging: 20kg, 25kg and 30kg è shall be protected from sun and rain during transportation It should be stored in a ventilated and dry warehouse to prevent direct sunlight The normal temperature storage period is 6 months Development: in order to alleviate the pressure of urban traffic, urban subway should be born The circulation of goods and materials between cities and the connection between people need convenient transportation, and highway and railway tunnels have been produced Some tunnels not only undertake the task of transportation, but also play the function of optical fiber cable, power cable and even water transportation channel Once there is a fire in the limited tunnel space, the telephone and Internet will be interrupted, the traffic will be stopped, the urban lighting system will be damaged, and even the tap water in some places will become undrinkable The tunnel is the throat of traffic Whether it is road, railway or subway tunnel fire is extremely dangerous In order to protect the steel structure and concrete structure from damage and minimize the economic loss, it is the most economical and effective way to protect the tunnel with enzyme resistant and flame retardant coating Tunnel fires are generally caused by the burning of combustible materials in vehicles, such as seats, tires, polymer ornaments, oil barrels and vehicles carrying goods According to the research of PIARC and cetu in France, the heat release rate of a car is 2.5MW, and that of a large truck filled with combustible goods is 20-30mw According to the Australian Fire Protection Commission (AFAC), the maximum temperature of the tunnel wall can reach 1000C Therefore, in the evaluation of tunnel performance, whether the tunnel wall structure can withstand high temperature is considered as the first factor in our country Mould proof and flame-retardant decorative coating has the characteristics of fire-retardant, mould proof, waterproof, moisture proof, strong adhesion, high pressure water impact resistance, long service life, etc., so it is suitable for highway, railway and seabed The anti mildew, flame retardant and decoration protection of tunnels, urban subways and above ground buildings such as airports, stations and shopping malls can also be used as the anti mildew, flame retardant and decoration protection of underground buildings such as underground garages and underground warehouses And the construction method is simple, which is incomparable with other tunnel decorative coatings As a kind of low-cost fireproof decorative coating, mould proof and flame-retardant tunnel decorative coating has obvious protective effect on tunnel structure, and is also suitable for the current economic development level in China Mould proof and flame-retardant decorative coating for tunnel will play an active role in preventing tunnel fire, improving the fire resistance limit of tunnel structure and prolonging the fire fighting time, and can effectively reduce the loss and repair cost caused by external fire, which will produce huge economic and social benefits The huge losses and painful lessons caused by the tunnel fire at home and abroad, the tunnel structure fire prevention has attracted the high attention of the relevant departments at home and abroad, and the requirements of using the tunnel decorative coating as the fire protection of the tunnel structure are also increasing, so the application of the mould proof and flame retardant tunnel decorative coating has great development potential and broad market application prospects Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,