External wall insulation special A-class fire board specifications

A: The concept of phenolic insulation board

English name: Phenolicinsulationboard

The phenolic insulation board is made of phenolic foam, which is a new type of non-combustible, fireproof, low-smoke and heat-insulating material. It is a closed-cell rigid foam made from phenolic resin with foaming agent, curing agent and other additives. Its most prominent features are incombustibility, low smoke, and high temperature resistance. It overcomes the shortcomings of the original foam-type heat insulation materials such as flammability, smoke, and heat deformation, and retains the characteristics of the original foam-type heat-insulating materials that are light in weight and easy to construct.

II: Product features 1. Advantages 1) Excellent fire performance
The insulating layer is made of phenolic foam and compounded with other materials for building insulation. It can basically meet the national fire protection standard A grade and fundamentally eliminate the possibility of external insulation fire. The use temperature range is -250°C~+150°C.

2) The heat preservation and energy saving effect is outstanding

Phenolic insulation board has good thermal insulation performance, and its thermal conductivity is about 0.023W/(m·k), which is far lower than the inorganic and organic exterior wall insulation products commonly used in the current market, and can achieve higher energy-saving effect.

3) Widely used

It can be used not only for traditional external wall thermal insulation systems, but also for composite insulation boards with decorative layers. It can also be used to build fireproof insulation tape for traditional EPS/XPS/PU external wall insulation systems and used as fire prevention in curtain walls. Thermal insulation materials, thermal insulation materials in fire doors, and fireproof thermal insulation materials for low temperature or high temperature applications.

2. Disadvantages 1), easy to pulverize, brittle, and inconvenient to work 2) Relatively expensive price 3: Specifications and product features
Specification length ≤ 4000mm

Width≤1200mm

Thickness≥20mm

Product Characteristics No. Item Test Result Unit 1 Compressive Strength ≥ 250kPa

2 density 50-80Kg/m3

3 water absorption V/V5%

4 bending strength 1.0 ~ 1.5Mpa

5 Thermal conductivity (25°C) ≤ 0.025W/(m*k)

6 smoke density level 0 to 15?

Four: Application of phenolic insulation board

The thermal conductivity of phenolic foam is about 0.023 (about 1/2 of polyphenylene, the heat transfer coefficient of polyphenylene plate is about 0.042), the fireproof grade is non-flammable A grade (high temperature resistant to 150°C), and the price is similar to that of polyurethane. Polystyrene foams and polyurethane foams are flammable and are not resistant to high temperatures. They are currently being used by the fire department. For places with strict fire protection requirements, government agencies have stipulated that only phenolic foam and its sandwich panels can be used. Phenolic fireproof and heat insulation board can effectively solve the problem of building fireproof and heat preservation. Phenolic insulation board does not drips at high temperature, does not soften, has low smoke, does not spread flame, resists flame penetration, has excellent fireproof performance, and has good heat preservation and energy saving effect. , It combines excellent fireproof performance with good energy-saving effect and is suitable for exterior wall thermal insulation. Phenolic insulation board application form:

1) Double-sided composite aluminum foil (wall insulation and decoration integration, air-conditioning insulation duct)

2) single-sided color steel single-sided aluminum foil (air conditioning duct)

3) Single-sided galvanized iron single-sided aluminum foil (air-conditioning duct)

4) Surface composite other materials, such as interface agent, mesh cloth mortar, etc. (there is a class a fire protection requirements of the building wall insulation)

Other materials can be selected by customers (aluminum, kraft paper, etc.) Since the 1990s, phenolic foams have been greatly developed. They were firstly valued by the British and U.S. military, used in the field of aerospace and aviation defense, and were later used in civilian aircraft. Ships, stations, oil wells and other places with strict fire protection requirements are gradually being introduced into high-rise buildings, hospitals, sports facilities and other fields.

V. Technical Modification of Phenolic Sheets 1) Technical Modification Target

Many phenolic insulation board companies attach great importance to the technical improvement of phenolic insulation boards, invest a lot of material manpower in the technical modification of phenolic insulation boards, in order to achieve toughness, increase strength, fire performance to achieve qualitative leap, improve phenolic insulation board dregs For other purposes, but there is no clear method for the definition of phenolic aldehydes and common phenols in the market, which leads to a great difference in product quality on the market. The relevant departments must make necessary specifications for the insulation market in order to better comply with market demand and construction. surroundings.

2) Technology Modification Route

The phenolic insulation board technology modification route mainly includes the following: First, the primary molding and modification of phenolic insulation is achieved through the use of large-scale automated advanced equipment; secondly, the phenolic insulation board is modified through the chemical or physical modification of the phenolic resin stage; The third is to modify the non-combustible material on the surface of the phenolic insulation board to achieve the modification of the phenolic board, and to achieve a fire rating of Class A. [1]

VI: Construction Method

The insulation of interior and exterior walls of phenolic insulation board generally uses mortar bonding method or sticking nail bonding method. From the bottom to the top, starting from the supporting part, the phenolic insulation board is glued on the wall with polymer adhesive mortar. The bonding area should be greater than 35% and the first layer should be greater than 50%. The outer sheath is heavier, nailing 4-6 insulation nails per square meter.

2, after the adhesion to stop for 24 hours before the protective layer construction.

3, the construction of the external surface can be performed every 24 hours.

4. The thickness and density of the insulation board are generally not less than 4cm in the area north of the Yellow River and the density is 50kg/m according to the design requirements. The cold area should be thickened. Composite insulation decorative panels are used in building insulation and decoration.

First, factory production. The phenolic insulation board is firmly bonded to the decorative panel.

Second, the use of light steel keel construction program, the composite insulation board hanging on the keel, to be fixed.

Third, be sure to deal with the gap between the board to prevent leakage.

The non-transparent curtain wall can be bonded to the inner panel of the curtain wall or adhered to the wall. Form a closed space with the curtain wall panel.

Fire barriers are to be made in a way that is consistent with the design requirements using adhesive-bonded joints, not less than 30 cm.

Special attention: Newly produced phenolic plates generally have to be maturated for 21 days before use.

Seven: Other instructions

In recent years, there have been reports of fires caused by insulation materials in China, and the huge losses in frequency and human assets are startling. Throughout the insulation market, the most commonly used insulation materials are polystyrene boards, extruded polystyrene boards, and polyurethane foams. The biggest problem with these insulation materials is their poor fire performance. Even the sparks produced by electric welding can make these insulation materials catch fire. When these thermal insulation materials are burned, they produce molten drip and a large amount of toxic fumes, which not only causes huge environmental pollution, but also brings great inconvenience to the fire rescue work and endangers the lives of the tenants and firefighters. To this end, on September 25, 2009, the Ministry of Housing, the Ministry of Housing, and Urban-Rural Development jointly formulated the Provisional Regulations for Fire Protection of Exterior-insulated Civil Buildings and Exterior Wall Decoration of Civil Buildings, which stipulates that the height of civil buildings is greater than or equal to 100 meters and other civilian uses. When the building is greater than or equal to 50 meters and the curtain wall type building is higher than 24 meters, the burning performance of the insulation material shall be Class A; when it is less than the above height, a fire separation belt shall be established. This has brought a huge market for domestic phenolic manufacturers. At present, there are more than a dozen phenolic foam manufacturers that have already been put into operation or under construction in China. The earlier manufacturers, such as phenolic insulation boards produced by Fujian Goutex, are in short supply on the market. However, the products produced by phenolic manufacturers are mixed, and the prices vary greatly. The huge market for phenolic insulation boards also needs the supervision of relevant departments. Relevant experts pointed out that while further improving the production technology of phenolic insulation board and meeting the market demand, it is necessary to expedite the development of special phenolic foaming equipment, increase the foaming yield and reduce the production cost. The relevant departments should establish an industry management coordination organization as soon as possible to formulate phenol aldehydes. Foam duct national standards, maintenance of the market's normal competition Our factory's phenolic board in Tianjin, Hebei and other provinces and cities have a record card, can trade.

Langfang Tongli Plastic Products Co., Ltd. === Ren Qingbo===15100690238

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