Cold storage exterior wall polyurethane insulation board roof insulation polyurethane board polyurethane hard foam board

Description

XPS insulation board is extruded polystyrene insulation board, which is based on polystyrene resin as raw material plus other raw materials and polymers, through heating and mixing at the same time injection catalyst, Its scientific name is extruded polystyrene foam for insulation (XPS for short). XPS has a perfect closed cell honeycomb structure, which makes the XPS board has very low water absorption (almost no water absorption), low thermal conductivity, high compression resistance, anti-aging (almost no aging decomposition phenomenon in normal use).

Performance features edited broadcast

Heat preservation and insulation

With the characteristics of high thermal resistance, low linearity, low expansion ratio, the structure of the closed-cell rate reached more than *9%, forming a vacuum layer, to avoid air flow heat dissipation, to ensure the durability and stability of its thermal insulation performance, relative to the foam polyurethane closed cell rate of *0%, the leading advantage is self-evident. Practice has proved that *0mm thick XPS extruded insulation board, its insulation effect is equivalent to *0mm thick foamed polystyrene, **0mm thick cement perlite. Therefore, this material is the best choice for building insulation.

High strength compression resistance

Due to the special structure of XPS board, its compressive strength is extremely high and impact resistance is extremely strong. According to different models and thicknesses of XPS board, its compressive strength can reach more than **0 ~ **0Kpa, and it can bear the ground load of various systems. It is widely used in geothermal engineering, highways, airport runways, square ground, large cold storage and interior decoration insulation and other fields.

Hate water, moisture-proof

Water absorption is an important parameter to measure insulation material. After absorbing water, the thermal insulation performance of the thermal insulation material decreases. At low temperature, the water inhaled is easy to freeze, which damages the structure of the thermal insulation material, thus reducing the compression and thermal insulation performance of the plate. Because the polystyrene molecular structure itself does not absorb water, the molecular structure of the plate is stable, no gap, to solve the problems of water leakage, penetration, frost, condensation and other materials.

Lightweight and easy to use

The fully closed cell foam chemical structure of XPS board and its cellular physical structure make it light, high strength characteristics, easy to cut, transport, and not easy to break, easy to install.

Good stability and anticorrosion

For a long time in use, no aging, no decomposition, no harmful substances, its chemical properties are extremely stable, will not be caused by water absorption and corrosion degradation, so that its performance is reduced, in the high temperature environment can still maintain its superior performance, according to the relevant information, XPS extruded insulation board even if used for *0 to *0 years, still can maintain excellent performance, And will not occur decomposition or mildew, no toxic volatilization.

Environmental protection of products

XPS board tested by the relevant departments of the state chemical performance is stable, no volatile harmful substances, harmless to the human body, the production of raw materials using environmental protection materials, does not produce any industrial pollution. The product is an environmentally friendly building material.

Applicable scope Editorial broadcast

1, building roof insulation, steel structure roof, building wall insulation, building ground moisture, square ground, ground frost heave control, central air conditioning ventilation pipe, etc

2, the ground moisture insulation layer, widely used in all kinds of building bottom moisture-proof, highway, railway, airport runway subgrade laying can control the thermal expansion and contraction of the floor tile, and has an excellent structural bearing effect.

3, upholstery, advertising board, widely used in upholstery, ceiling, sound wall, sandwich door filling material, heat insulation, sound insulation, moisture, weight reduction and other effects. Fire retardant is added to the plate during production, so it does not burn easily. Can also be widely used in advertising companies to produce all kinds of advertising boards.

Construction methods editor broadcast

According to the size of the polystyrene board configured on the site construction surface, brush or scrape the adhesive paste and paste it on the wall.

Exterior wall insulation editor broadcast

1. Wall

2, dry powdery building adhesive

3, flame retardant polystyrene rigid foam board, using high-performance EPS and XPS polystyrene board, double benefit products for different customer needs to choose, the thickness of the product according to the needs of different engineering project design.

4, dry powder coating glue

5, high strength glass fiber mesh cloth can provide the overall strength and impact resistance of the system, while preventing the surface of the system cracking. The number of mesh layers can be determined according to the design requirements.

6, the finishing layer for coating, brick and other decorative materials.

Select Method edit broadcast

1. Choose XPS extruded board with high quality and qualified. Generally, the preferred material is PS raw material.

Its characteristics are good film forming, large molecular weight, molecular chain is very long, in the extrusion foaming process foaming hole membrane is good, the formation of uniform bubble hole structure, bubble hole wall structure is thin, the compressive strength of the product is high, with the hand to break the product small piece pinch, has good resilience. With very low thermal conductivity ≤0.**0, high quality plate is 0.****0.**9 (W/m.k), compressive strength is generally ≥**0kpa, water absorption ≤0.*1, with high physical stability, the product meets the national standard GB/T*********2 (referred to as the standard board) and flame retardant and self-extinguishing in line with the fire standards. The reference price is ******0 yuan /m3.

2. Enterprises with good quality and good reputation should be selected.

The influx of low quality and low price XPS on the market has led to industry chaos. Using poor quality recycled materials and using foamed water or flammable propane or butane foam as foaming agent bulk density is lower than or equal to *0kg/m3, recycled materials, (used materials) after multiple high temperature and pressure and shear action, the molecular chain is cut and shortened, the molecular weight is smaller, the porosity is larger, the membrane foaming property is poor, the porosity is poor, the pore wall becomes thicker, the hardness becomes larger, the elasticity is poor, The service life of the product becomes shorter and the thermal insulation performance becomes worse. Breaking small pieces of products by hand and not bouncing back after squeezing, resulting in product quality problems, affecting the correct selection and use of XPS in the industry, and relying on low quality and low price sales without quality and reputation guarantee. Some manufacturers choose to use poor recycled materials containing impurities, which are generally not filtered and processed, and then used after grinding. By blindly reducing costs, foaming materials contain impurities, which cannot reach foaming rate and foaming strength. Fire retardant is generally not flame retardant, easy to cause engineering hazards and unsafe factors, but can not achieve the user\'s use effect and use standards. The market price is ******0 yuan /m3.

3. Consider the classification of XPS by industry level.

According to the compression strength, water absorption and thermal conductivity, choose different grades of products.

4. Pay attention to key indicators in the selection of thermal insulation materials.

(1) Thermal conductivity: Due to the selection of different materials, different thermal conductivity, due to the selection of higher water absorption of materials, there is a large gap between dry bulk density and wet bulk density thermal conductivity. High quality materials are generally 0.****0.**0 (W/m.k) as the selection standard of insulation range; Generally, the thermal conductivity of 0.****0.**2 (W/m.k) materials is relatively large, and the energy saving effect is poor, which cannot reach the standard of *5% energy saving.

(2) Apparent density and compression strength: general XPS bulk density is ≥****8kg/m3, the industry standard value, both to achieve adiabatic performance and ideal compressive strength. The difference is that the product is not the heavier or lighter the better, but to ensure that the product foaming rate is high, good compressive strength, is one of the ideal product choices.

â‘¢The rate of size change: The rate of size change comes from the relationship between the foaming material and the foaming rate and the density. Good product, low size change rate, small shrinkage, strong stability.

(4) Water vapor permeability coefficient: the material hole, half hole and completely closed hole form different moisture absorption rate and different water vapor permeability coefficient.

(5) Oxygen index, the fire standard is generally A class non-combustible material. Such as rock wool, glass wool, etc.; And organic foaming materials, generally flame retardant and flame retardant, belong to Class B.

The above five standards for the preferred materials pay more attention to the technical parameters, the selection of materials should be the first choice of materials with quality as the standard, rather than the pursuit of low price is a good product, inexpensive is the choice of materials.

5. Selection of flame retardant extruded board with good texture.

The choice of flame retardant extruded board, the first to look at the density, that is, the bulk density, the bulk density, the bubble hole uniform fine, first can prove that the extruded board is good heat insulation, the second to look at the compression strength, high compression strength, small bulk density is always the perfect combination of extruded board, but unfortunately they are often difficult to have both, so only in the two standards meet the state of the choice of other standards to determine. Third, to see the color, listen to the sound, the texture is white and clean, not discoloration, the bubble hole uniform fine extruded board is generally produced by raw material resin, of course, the quality is good, in addition to the quality of the extruded board produced by different recycling materials is also very different, the sound of the ground is too crisp, the extruded board without strength is generally poor quality. Fourth, the size of the sufficient, convenient construction of the extruded board naturally trusted. Fifth, flame retardant test, even a simple lighter if rigorous test can also identify its flame retardant advantages and disadvantages.