Clean room building decoration engineering is mainly refers to in addition to the main structure and outer door window of including the ground and floor decoration engineering, plastering engineering, doors and Windows, ceiling, partition engineering, coating engineering, brush, cracks and all kinds of pipeline engineering, lighting lamps and lanterns, purifying air conditioning equipment, process equipment and combining parts of the building gap seal.

The importance of clean room architectural decoration is mainly reflected in the following two aspects:

(1) The impact on the comprehensive performance: the clean room requires that the material does not produce dust, the structure does not collect dust, and the seal is tight and does not permeate dust. So the decoration of the clean room will directly clean the effect.

(2) The impact on the cost: compared with general office buildings, clean rooms are high-cost buildings.

One, the requirements of decorative materials

1. General requirements

(1) smooth surface;

(2) The surface has wear resistance;

(3) Good thermal insulation;

(4) not easy to generate static electricity;

(5) no moisture absorption, moisture permeability;

(6) Good sound absorption;

(7) Easy to process;

(8) the surface is not easy to adhere to dust;

(9) Easy to remove the dust attached;

(10) Low price.

2. Floor decoration

(1) General requirements

Wear resistance;

(2) corrosion resistance (acid, alkali, medicine);

(3) anti-static;

(4) slip;

(5) no joint processing;

⑥ Easy to clean.

(2) Species

(1) Double floor: it is a typical vertical unidirectional clean room floor. The general characteristics are: can ground return air, good permeability, high cost, poor elasticity.

Terrazzo ground. The general characteristics are: smooth, not easy to dust, good integrity, flushing, anti-static, inelastic.

③ Coating ground. The general characteristics are: terrazzo advantages, wear-resistant, good sealing, elastic, complex construction.

Material: add pigment in epoxy resin, polyester resin, polyurethane resin, hardener, cement mortar base cement label is not less than 425 #.

(4) coil plate floor. The general characteristics are: smooth, wear-resistant, slightly elastic, not easy to dust, easy to clean, simple construction, easy to produce static electricity, easy to aging by ultraviolet radiation, because of the concrete expansion system is not the same, easy to shell for a large area

⑤ acid-resistant magnetic plate ground

The general characteristics are: corrosion resistance, but brittle quality can not withstand impact, construction is more complex, high cost, suitable for corrosion resistance requirements of the section, and should be surrounded by waterline.

⑥ FRP floor:

The general characteristics are: corrosion resistance, good integrity, but the expansion coefficient is different from the base, so it should be used in a small area, and fireproof varieties.

3. metope

(1) General requirements

(1) Not easy to dirty, easy to clean;

② Smooth surface;

(3) Once the surface is peeled off or damaged, it does not produce dust;

Impact resistance;

The corner can be processed with arc material or sealing material.

(2) Species

1. Advanced plastering. Clean room walls such as plastering must be advanced plastering, which is characterized by: Yin and Yang Angle square, standard reinforcement, layer leveling, surface dressing, and light pressing.

Latex paint. Features: smooth, no peeling, cheap, can not be cleaned.

Epoxy resin paint, synthetic resin paint. Smooth, no peeling, can be cleaned, corrosion resistance, high construction requirements.

(4) mildew proof coating. The general characteristics are: smooth, no peeling, cleaning, corrosion resistance.

(5) porcelain plate. Features are: smooth, corrosion resistance, easy to clean, more joints, not easy to lay flat, high construction requirements.

⑥ Sheet metal. The general characteristics are: corrosion resistance, fire resistance, no static electricity, smooth, easy to wash, high price.

Materials: epoxy composite aluminum plate, anti-rust aluminum plate, stainless steel plate, color steel plate. The base plate of color steel plate is galvanized steel plate, the coating lining is alkyd resin, the coating cover is heat hardening propylene resin or epoxy resin or polyester resin.

⑦ Assembled clean room panel.

The general characteristics are: assembly clean room is a kind of clean room form widely used today, especially suitable for reconstruction occasions. The wainscot characteristics vary from material to material. In addition to the characteristics of metal wainscot, double filled wainscot also has heat insulation characteristics, suitable for air conditioning, especially for the occasion of constant temperature requirements. Double filled panels have high strength.

Material: The panel is composed of surface material and core material. According to the design object selection.

Surface materials include plastic board, aluminum alloy plate, steel plate, color steel plate, etc.

Core materials are as follows:

A. Rigid polyurethane foam: can be foamed inside the wall, excellent heat insulation performance. Halogenated organophosphorus compounds can be used as flame retardants, which can be divided into combustible grade, flame retardant grade and refractory grade due to different mixing methods.

B. Asbestos calcium carbonate: light calcium carbonate as the main raw material, mixed with inorganic fiber and fire retardant agent to make the foam, with a small amount of POLYvinyl chloride resin as a binder molding, fire performance is good, belongs to the quasi-incombustible board.

C. Clip polystyrene board: through glue and pressure, the insulation of the polystyrene board sandwiched between two steel plates, combustion will produce sexual gas. Should not be used in places with high fire protection requirements.

D. Rock wool board: rock wool board is sandwiched between two steel plates, suitable for use in situations with high fire protection requirements. But if the plate needs to bear, it needs to be lined with gypsum board, otherwise easy to deformation.

E. Paper (aluminum) honeycomb panel: Paper (aluminum) honeycomb panel sandwiched between two steel plates. High strength, aluminum honeycomb fire resistance.

4. Condole top

(1) General requirements

The ceiling skeleton has light weight, good stiffness and convenient construction.

The panel of ceiling cover is less affected by artificial friction, and more affected by vibration such as air duct on the ceiling, so it is more important to control vibration shedding than hard material surface.

(2) Species

The ceiling skeleton has:

Light steel keel. It is characterized by light weight, less steel, joint processing to be careful, but people are difficult, can not be used as a temporary horse path and support heavy objects, maintenance trouble.

Steel keel. It can adapt to the layout of air outlet and lamp hole, but the steel consumption is large.

Aluminum alloy keel. Is characterized by the lightest weight, joint processing to be careful, but people difficult, can not be used as a temporary path and support heavy objects, maintenance trouble.

The cover panel has:

The major material that makes metope to use all can serve as condole top cover face plate material, in addition chromatic plastic board also is better cover face plate material.

5. Sealing caulking material

(1) General requirements

(1) Good sealing performance and certain elasticity;

② Not easy to aging;

(3) easy to solidify;

(4) The material should be single component as far as possible;

(5) easy construction;

⑥ There is a certain adhesion;

⑦ Non-toxic, tasteless, color and color appearance and decoration coordination.

(2) Species

There are many kinds of silica gel, the main ones are:

Silicone rubber. The general characteristics are: there is a wide range of temperature adaptation area, drug resistance and oil resistance are good, but not NaOH resistance, sometimes mildew. The material is a semi-inorganic polymer rubber elastic material with siloxane structure as the main body.

② polyurethane. General features: high hardness, good elasticity, good low temperature performance, oil and ozone resistance, poor water resistance.

Material: by the polyisocyanate and with active hydrogen alcohol, ammonium, through the curing agent reaction products.

(3) rubber class

General characteristics: good elasticity, drug resistance, water resistance, oil resistance and durability.

Material: synthetic rubber (such as nitrile rubber).

6. Special requirements

According to the "Clean Room Construction and Acceptance Code", attention should be paid to the use of wood and gypsum board:

(1) The moisture content of the wood used in the clean room shall not be greater than 16%, and shall not be exposed to use. Due to the large number of air change in the clean room, the relative humidity is low, such as the large use of wood, easy to dry, deformation, loosening, dust, etc., that is, the use of local use, and must do a good job of anti-corrosion and moisture-proof treatment.

(2) When gypsum board is needed in general clean rooms, waterproof gypsum board must be used. For biological clean rooms, because they are often scrubbed with water and washed with disinfectant, even waterproof gypsum board will be deformed by damp and not able to be washed, so it is stipulated that biological clean rooms should not use gypsum board as cover material.